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Air Force Researching Antimatter Weapons

mlmitton writes "The San Francisco Chronicle is reporting that the Air Force is actively pursuing antimatter weapons. Such weapons would easy eclipse nuclear weapons in power, e.g., 1 gram of antimatter would equal 23 space shuttle fuel tanks of energy. Perhaps more interesting, after an initial inquiry by the Chronicle in the summer, the Air Force issued a gag order that prohibits any Air Force employee from discussing antimatter research or funding."

1,062 comments

  1. Energy Conversion by tntguy · · Score: 5, Funny

    e.g., 1 gram of antimatter would equal 23 space shuttle fuel tanks of energy

    How much energy is that in Burning Libraries of Congress? I'm not entirely up to speed on these new-fangled measurements. Rods an' hogsheads, for me!

    1. Re:Energy Conversion by Megaweapon · · Score: 2, Funny

      I think that is properly measured in exploding Volkswagen units.

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    2. Re:Energy Conversion by crayz · · Score: 5, Funny

      I'd like to get football fields of destruction if possible. It would be nice to have a conversion utility

    3. Re:Energy Conversion by peculiarmethod · · Score: 1

      Forget about it.. what you don't know won't kill you.

      Wait.. but what you're not made of might!

      --
      ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
    4. Re:Energy Conversion by MoonBuggy · · Score: 4, Informative

      I present to you the Antimatter Calculator - it actually releases less energy than I would have thought since an entire kilo is slightly less powerful than the most powerful nuke ever detonated (although still a helluva lot of power, ~40 kilotons/gram)

    5. Re:Energy Conversion by abb3w · · Score: 5, Informative
      1 kg antimatter mixed with equal matter yields about 42 megatons, half from matter conversion to energy, half from antimatter conversion to energy. The energy would initially be in the form of gamma rays at the neighborhoods of .5 and 900 MeV, but the latter would self-scatter (? correct term ?) due to electron positron emission/annihilation, and head down REAL fast towards the .5 MeV.

      Still a hell of a chest X-ray to give the planet.

      --
      //Information does not want to be free; it wants to breed.
    6. Re:Energy Conversion by cmdr_beeftaco · · Score: 2, Funny

      The US Air Force needs to seriously consider using their time machine to go back and prevent the leak of anti-matter weapons.

    7. Re:Energy Conversion by Anonymous Coward · · Score: 0

      I'm American, so if you could convert those B(urning)LOC units to napalmed football feilds, I'd be much appreciative.

    8. Re:Energy Conversion by nacturation · · Score: 3, Funny

      I'm somewhat partial to units involving elephants. Can I get this expressed in terms of the potential energy of x elephants dropped from an altitude of 100km?

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    9. Re:Energy Conversion by Oliver+Wendell+Jones · · Score: 4, Funny

      What anti-matter weapons?

      --
      A computer once beat me at chess, but it was no match for me at kick boxing -- Emo Phillips
    10. Re:Energy Conversion by chris_mahan · · Score: 1

      1.0 should be enough to satisfy the current administration.

      --

      "Piter, too, is dead."

    11. Re:Energy Conversion by Egonis · · Score: 5, Insightful

      How about using this kind of power for POSITIVE purposes? Like low-cost, efficient, and safe energy?

    12. Re:Energy Conversion by shawn(at)fsu · · Score: 1

      We had to figure this out for a Cosmology test in college. What a lot of people didn't realize is that by using say 1 gram of antimater your also going to get the energy from the 1 gram of mater that will also get transferd in to energy. Does this Calulation take that in to effect?

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    13. Re:Energy Conversion by NoMoreNicksLeft · · Score: 5, Funny

      Any self-respecting supervillain uses neutronium/anti-neutronium. Sure, it doesn't weigh any less, but you can pack 50 million tons of it in a suitcase.

      Well. A suitcase made of exotic superstring material.

    14. Re:Energy Conversion by AoT · · Score: 4, Funny

      What happens if you make an anti-matter hydrogen bomb?

    15. Re:Energy Conversion by Anonymous Coward · · Score: 1, Funny

      > but you can pack 50 million tons of it in a suitcase.

      I don't think I want to mess with the guy who can carry that suitcase...

    16. Re:Energy Conversion by Lars+T. · · Score: 1

      Shouldn't this be ice hockey rinks of destruction? Just like you count in Megadeaths and not Kilodeaths?

      --

      Lars T.

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    17. Re:Energy Conversion by Anonymous Coward · · Score: 0

      Making antimatter is NOT cheap. You'd be spending hundreds of megawatt-hours to generate enough antimatter to drive a car a few miles (assuming the car could run on antimatter). Well, maybe it's not that bad, but you get the picture. Using antimatter for power generation is kind of like using hydrogen for it (it doesn't generate any energy, just transports it from the power plant to the engine/generator where it's used); except much, much, much less efficient overall. The only place where it makes sense is for spacecraft, where you can save a lot of space/weight, usually enough to make up for the ultra-expensive fuel.

    18. Re:Energy Conversion by Anonymous Coward · · Score: 0

      You waste your time?

    19. Re:Energy Conversion by Anonymous Coward · · Score: 0

      Dear Lord. Why is it when we see these ideas that are clearly extremely expensive someone always says --hey, I know maybe we could use this as a cheap ya ya ya
      The only catch there would be in the part about it being very expensive. Thanks for playing.

    20. Re:Energy Conversion by spektr · · Score: 1

      What happens if you make an anti-matter hydrogen bomb?

      You're going to be the winner of the next the Darwin Award!

      But what happens if you light your cigarette with a nuke? Will the chemical energy of the cigarette make the nuke light brighter?

    21. Re:Energy Conversion by Stevyn · · Score: 1

      I think it's enough energy to drive a pickup truck with an elephant in the truck bed across a football field 1 million times. Or is it from New York to San Fransisco 1 million times. Damn, I need by Calculations for Dummies book.

    22. Re:Energy Conversion by Anonymous Coward · · Score: 1, Informative

      Antimatter isn't likely to be low cost, efficient or safe for a long time. There is no cheap, abundant source of antimatter available to us. Antimatter has to be created, typically through radioactive decay of certain isotopes to positrons. You can also create antimatter with high energy collisions in cyclotrons. A small percentage of the outcome of collisions will be antimatter. You can only obtain a few particles of antimatter at a time this way and the cost is enormous. Once you have antimatter, you need to contain it, which is also very expensive. Finally, when you want to use your antimatter to get power you have to annihilate it with normal matter which produces gamma rays. Unlike visible light, most materials are transparent to gamma rays so trying to convert gamma rays to usable energy (electricity) will not be a very efficient process. You can think of visible light as a wiffle ball, its limited in energy but its pretty easy to transfer it. Gamma rays are more like bullets, lots of energy but they won't bounce off of you.

    23. Re:Energy Conversion by michael_cain · · Score: 1
      since an entire kilo is slightly less powerful than the most powerful nuke ever detonated

      So this raises the interesting (at least to me) question: in the most powerful nuke ever detonated, how much hydrogen isotope was converted to helium? Since the conversion of mass to energy in such bombs is much less than 100% (IIRC), there must be quite a lot involved. Or is some energy other than mass-to-energy conversion involved in today's fusion weapons?

    24. Re:Energy Conversion by fymidos · · Score: 1

      i would say that it is not safe, and it's definetely more expensive than nuclear energy.

      --
      Washington bullets will simply be known as the "Bulle
    25. Re:Energy Conversion by AoT · · Score: 1

      Ok bear with me here for a second.

      Assuming that fussion of an antihydrogen atom could actually work then you'd have both the initial explosion plus the reaction of the antiparticals which were created by the fussion.

    26. Re:Energy Conversion by Anonymous Coward · · Score: 1, Informative

      Because, barring the possibility that you locate a large natural source of antimatter, you'll always expend far more energy making it than you will get back by using it.

    27. Re:Energy Conversion by Martin+Blank · · Score: 3, Funny

      See? They were successful!

      --
      You can never go home again... but I guess you can shop there.
    28. Re:Energy Conversion by scoser · · Score: 1

      If my calculations are correct, 23 SSFTs = 1.7345 Bajiggitywatts = 3.75 BLoCs. But if you want to use Flaming Ears of Corn, you get a nice round 1 Trillion FEoCs.

    29. Re:Energy Conversion by Begossi · · Score: 2, Funny

      I think what you are looking for is "fathoms per league per foreweek".

      --
      Friend of the Wise, Brother of the Brave.
    30. Re:Energy Conversion by Dyolf+Knip · · Score: 3, Informative
      For those interested in doing the math...

      A kilo of antimatter reacting with a kilo of matter releases 2kg x (300,000,000 m/s)^2 = 1.8e17 Joules. The specific combustion energy of TNT is 4.6e6 J/kg, hence 1 kt TNT = 4.6e12 J, 1 Mt TNT = 4.6e15 J. Therefore 1.8e17 J / 4.6e15 J ~= 40 MT of TNT.

      You get about 70 times as much energy as you would from fusing 2kg of hydrogen into helium. But then fusion is a viable power source, whereas antimatter is at best a battery. Unless we find a way to make antimatter without having to make matter as well; then the reaction would be a net gain in usable energy (at the expense of matter in the universe, of course)

      --
      Dyolf Knip
    31. Re:Energy Conversion by Rei · · Score: 3, Insightful

      ... which points out one of the silly things about this. The headline stated:

      "Such weapons would easy eclipse nuclear weapons in power"

      No. Such weapons would easily eclipse nuclear weapons in *fuel energy density*. They would not eclipse nuclear weapons in energy, or even overall energy density, without radical breakthroughs. Antimatter is just too expensive to produce, and requires such large containment structures, that you can't get either sizable amounts of raw antimatter energy, nor great energy density. Perhaps antimatter-catylized fusion might produce new, useful weapons (small fusion bombs that don't need a fission bomb to start the reaction), although I personally am not in favor of blurring the line between conventional and nuclear weapons.

      Still, I guess there is one good thing that will come of this: I always felt we should spend more money on basic research and less on the military. Here, the military is spending its money on basic research ;)

      --
      "You abandoned me! You abandoned my hatred!" "I... I have cuttlefish..."
    32. Re:Energy Conversion by SeanTobin · · Score: 5, Informative

      You had to ask didn't you? Well, I asked google how many burning libraries of congress(es?) in one gram of antimatter... And google was stumped :(

      So, here we go... 1 gram of antimatter -> burning libraries of congress(es?):

      For the sake of argument, lets assume that the Library of Congress is entirely non-flamable and only the books contribute to the heat. Furthermore, lets assume that all the books are made of 100% wood or equivilant.

      Now, 1 gram of wood when completely burned produces 3000 calories.

      The Library of Congress contains approximately 128 million items. Again, some of these are recordings of various natures and will not burn as well as books... so to compensate we'll deviate from our initial assumptions and assume that the burning of the 530 miles of bookshelves compensate for any lack of flamability of the old records.

      So... our average paperback weighs under 1lb and our average hardcover book weighs between 1 and 2lbs. Seems reasonable enough. Lets assume a distribution between hardcover and paperbacks so as the average book weight in the LOC is 1lb.

      Now, Google can help us some more here. Our friendly search engine lets us know that one pound is 453.59237 grams. We'll round that off to 453 grams, since we're averaging book weight anyway.

      So, the LOC has (453*128,000,000) or 57,984,000,000 grams worth of books. At 3000 calories per gram, burning down the LOC would produce 173,952,000,000,000 calories of energy. For the sake of sanity, lets convert that to joules. Google says that 173 952 000 000 000 calories = 7.27815168 × 10^14 Joules

      Now, our space shuttle main tank (and engines, NOT including boosters which are more powerful) produce 1,987,500,000 Watts of energy, and burn for 8.5 minutes. That's (510*1,987,500,000) 1013625000000 Watt/seconds of energy. Converted to joules, that is remarkably 1013625000000 Joules.

      So.. One space shuttle fuel tank of energy is 1013625000000 Joules. 23 space shuttle tanks of energy is 23313375000000 Joules. For convienence, one space shuttle tank is 0.23313375x10^14 joules.

      So... it comes down to one burning LOC is 7.27815168 × 10^14 joules. 23 space shuttle fuel tanks are 0.23313375*10^14 joules. So, one gram of antimatter combining with one gram of matter is approximately 0.032 Burning Libraries of Congress(es?). I actually expected it to be more.

      Now how do I get Google to include space shuttle fuel tanks and burning libraries of Congress(es?) as acceptable measurements?

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    33. Re:Energy Conversion by barawn · · Score: 2, Interesting

      (at the expense of matter in the universe, of course)

      And several conservation laws of physics, as well. :)

      That being said, antimatter may just be a battery, but it is the best possible batter known to very, very basic physics (i.e. it's very unlikely to find a better one). Antimatter would be a very viable fuel for a lightweight probe to other star systems. A few have been proposed - I don't think anyone's taken them seriously, though. (AimSTAR is the one I knew of from a professor at Penn State, though it was definitely a pipe dream.)

    34. Re:Energy Conversion by StarsAreAlsoFire · · Score: 2, Interesting

      Guessing, but I imagine the difference you are seeing is the fact that E=mc^2 isn't a 'real world' way to measure the conversion of mass to energy via matter-antimatter interaction.

      Like anything else, there are inefficiencies which occure (e.g. energy is taken up by re-forming certain elements/compounds etc).

      If I recall correctly the absolute most efficient energy conversion process is achieved by a black hole (ask me not the process by which this is done), with a conversion of mass to energy of something like 40% efficiency.

      Matter-antimatter isn't anywhere near that.

      Again, this is just a heads up :~) check the numbers at your leisure.

    35. Re:Energy Conversion by coronaride · · Score: 1

      did anyone else read that as Cosmetology at first glance? Here I was thinking that you were talking about antimatter eyeshadow or something..

      --
      Those who can, do. Those who can't, go into business for themselves.
    36. Re:Energy Conversion by AviLazar · · Score: 5, Funny

      What are you nuts? Do something useful for our world? We need more WMD's, because after we nuke the planet to hell and back, we want to make sure we get all the cockroaches by using anti-matter weapons on them.
      With luck, after we create anti-matter weapons - the vulcans will come here, smack some sense into our leadership and those of us who want can leave on a space ship with warp drive and hot vulcan chicks :D

      --

      I mod down so you can mod up. Your welcome.
    37. Re:Energy Conversion by Anonymous Coward · · Score: 0

      Does this Calulation take that in to effect?

      Yes, it does. Just do the calculation by hand and see for yourself. The only hard part of the calculation is converting kilotons to a sensible unit such as Joules or ergs.

      (That is kind of a tricky question to put on a test, since it's easy to forget that factor of two... hopefully partial credit was available.)

    38. Re:Energy Conversion by spektr · · Score: 1

      I think a antihydrogen bomb would work, but it would be pretty difficult to handle. I believe that the fission reaction would add nothing to the total energy output, because the result of a matter-antimatter reaction is pure energy, leaving behind no matter or antimatter - you can't gain more energy than that. But I'm no physicist...

    39. Re:Energy Conversion by Anonymous Coward · · Score: 0

      well just piss on his parade why don't you

    40. Re:Energy Conversion by HungSoLow · · Score: 3, Funny

      So what you're saying is if I eat the entire library of congress (fibre is good for your diet) I would gain 19,328,000,000,000 kg. (IF the library was entirely converted to fat). Take that Richard Simmons!

    41. Re:Energy Conversion by SeanTobin · · Score: 1

      Actually, you are a bit off. 1 calorie (1g water+1c) is used to denote energy. One Calorie as used to denote the amount of energy in food is equal to 1000 calories, so devide your result by 1000.

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    42. Re:Energy Conversion by radtea · · Score: 1

      The article describes research into stable positronium (e+/e- bound pair) not anti-hydrogen, so all the energy would come out at in 511 keV gammas, which is nice because the high-energy gammas you'd get from P+/P- annihilation would spall off neutrons from just about everything, and thereby create lots of radioactive fallout.

      I'm doubtful that positronium can be stabilized, and hopeful that no one will try too hard.

      --Tom

      --
      Blasphemy is a human right. Blasphemophobia kills.
    43. Re:Energy Conversion by Anonymous Coward · · Score: 0

      Also, he negelected the simple fact that human digestive system cannot metabolize wood. Maybe he could try computing how much you would gain if you ate all the bookworms living off of the books in the Library of Congress. (ewww!!!)

    44. Re:Energy Conversion by ptr2004 · · Score: 1

      How many hours can that power my laptop ?

    45. Re:Energy Conversion by mikiN · · Score: 1

      ...but he'll have to coerce some DHL ppl very quickly to come pick up the suitcase (they can ship anything anywhere, can't they?) before it makes its own way towards the center of the Earth, taking all of us with it...

      --
      The Hacker's Guide To The Kernel: Don't panic()!
    46. Re:Energy Conversion by magefile · · Score: 1

      I think you mean LOAs - Libraries of Alexandria. And if we're talking "space shuttle tanks of energy", who says they have to be filled with fuel - why not, say, antimatter (recursivity!).

    47. Re:Energy Conversion by kesuki · · Score: 2, Informative

      what the calulation doesn't take into consideration, is the massive massive flood of gamma radiation released by an antimatter matter conversion. the reason that it it ignored, is because we have no current technology capable of using the massive amount of gamma radiation released... oh hey and as for laws of conservation someone brought up... technically the matter 'destroyed' still exists... as energy and gamma radiation... it has neither been destroyed nor violated any laws of conservation. However reconstituting gamma radiation into matter is far beyond our technology level. but converting matter into energy and gamma radiation is just barely within our capabilities.

      Do we need any more proof this is a type 13 planet in it's final stages? I think not ;)

    48. Re:Energy Conversion by Jazu · · Score: 1

      What about how high you can make the rubble bounce?

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    49. Re:Energy Conversion by Anonymous Coward · · Score: 0

      A calorie as a unit of measurement is independent of the process by which it is generated or absorbed. Thx for playing.

    50. Re:Energy Conversion by Hentai · · Score: 1

      Technically, isn't antimatter the only *true* WMD? Everything else doesn't so much *destroy* mass as *convert* it, right?

      --
      -Hentai [in vita non pacem est]
    51. Re:Energy Conversion by Snotnose · · Score: 1

      How much energy is that in burning Constitutions and Bills of Rights?

    52. Re:Energy Conversion by macdaddy357 · · Score: 1

      Beside antimatter, how many other science-fiction based weapons systems are they working on? Any phasers or light-sabers?

      --
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    53. Re:Energy Conversion by Comatose51 · · Score: 1

      And and... Vulcan chicks dig nerds!

      --
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    54. Re:Energy Conversion by BluBrick · · Score: 1
      Standard units! That was the first thing I thought of as well.

      I thought they would have gone with the standard unit for the energy of a weapon - the "Hiroshima bomb". Just how many Space Shuttle Fuel Tanks are in a Hiroshima Bomb?

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    55. Re:Energy Conversion by Anonymous Coward · · Score: 1, Funny

      *BOOM* <- Not to scale

    56. Re:Energy Conversion by Tablizer · · Score: 1

      and hot vulcan chicks

      Careful there. They have more pointy anatomy besides their ears.

    57. Re:Energy Conversion by UglyTool · · Score: 1

      It's furlongs per fortnight, if you knew anything about science. Sheeesh.

    58. Re:Energy Conversion by Talez · · Score: 1

      E=mc^2.

      You can't get any more E when m is already as big as it gets.

      Fusing the hydrogen beforehand would just reduce m for the matter-antimatter reaction.

    59. Re:Energy Conversion by Anonymous Coward · · Score: 0

      You might be a nerd if...^

    60. Re:Energy Conversion by Lehk228 · · Score: 1

      IIRC a single unit of a fustion reaction takes two hydrogen atoms, and creates a helium with one less electron than started with, thus it is a single electron per pair of hydrogens that is converted to energy, an electron has 1/2000 the mass of a neutron or proton.

      --
      Snowden and Manning are heroes.
    61. Re:Energy Conversion by Old+Wolf · · Score: 1

      Don't worry, Bruce Willis is on standby with a suitcase of neutronium and an oil drill

    62. Re:Energy Conversion by Anonymous+Custard · · Score: 1

      And and... Vulcan chicks dig nerds!

      Once every seven years!

      Actually that's not so exciting anymore...

    63. Re:Energy Conversion by Lehk228 · · Score: 1

      antimatter can never be a safe energy store, by its nature it is extremely volitile and will detonate immediately if it's magnetic containment fails, any device storing antimatter would become an antimatter bomb simply by breaking it or deactivating the containment fields.

      --
      Snowden and Manning are heroes.
    64. Re:Energy Conversion by KillboyPHD · · Score: 5, Funny

      "I'm somewhat partial to units involving elephants. Can I get this expressed in terms of the potential energy of x elephants dropped from an altitude of 100km?"

      If I've done the calculations right, the energy released by one kilogram of matter interacting with one gram of antimatter is roughly equivalent to the potential energy of 33 thousand 6 ton elephants at a height of 100 kilometers.

      --
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    65. Re:Energy Conversion by Tore+S+B · · Score: 1

      Nonono - Libraries of Alexandria are what the metric system uses! You US bastards use congress ;)

      But that really doesn't antimatter at all.

      --
      toresbe
    66. Re:Energy Conversion by sploo22 · · Score: 1

      But think about the big picture. Once the fission explosion occurs, the antiparticles of the bomb will be scattered over a much wider area. As they disperse, they collide with air molecules and annihilate. The end result is almost the same amount of energy release as a pure antimatter weapon, but with a MUCH larger blast radius. I think...

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    67. Re:Energy Conversion by imsabbel · · Score: 1

      Yeah, but you forget that the fusion products are actually LIGHTER then their source. Because thats the energy released during fusion. And thats mass defect will reduce the annihilation blast. So you gain nothing.

      --
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    68. Re:Energy Conversion by Bendebecker · · Score: 1

      And from what I understand it requires currently approx. 25 billion dollars to get 1 gram of said antimatter. As such, 1000 kilos would require 25 trillion dollars to produce which amounts to approx. 2.5x the GDP of the United States of America.

      --
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    69. Re:Energy Conversion by Anonymous Coward · · Score: 0
      I believe that the fission reaction would add nothing to the total energy output, because the result of a matter-antimatter reaction is pure energy, leaving behind no matter or antimatter - you can't gain more energy than that. But I'm no physicist...
      I am, and I recon you're essentially right. Thing is, not being a closed system, the energy of the explosion will not be well-defined. Still much as it can be defined, I would expect the energy to be about the same, albeit in slightly different forms. The mass of a bomb (or anything else) is actually slightly less than the total mass of its constituent particles because of the various binding energies. When it explodes, the total mass of the pieces is still less. Mass is not actually conserved, mass/energy is.
    70. Re:Energy Conversion by Too+Much+Noise · · Score: 1

      And several conservation laws of physics, as well. :)

      That's ok, CP violation has already been observed.

    71. Re:Energy Conversion by Anonymous Coward · · Score: 0

      It can't be beat for energy density, so aside from technical concerns (such as getting the energy out as electricity, rather than high energy gamma rays. Fusion reactors have the same issue), antimatter would be a great basis for an energy storage device. But without naturally occuring antimatter, it won't work as an energy source.

    72. Re:Energy Conversion by Scorillo47 · · Score: 1

      >>> Unless we find a way to make antimatter without having to make matter as well; then the reaction would be a net gain in usable energy (at the expense of matter in the universe, of course)

      The main problem is that making antimatter consumes energy. You have to generate & capture enough positrons and anti-protons etc. until you get a sizeable lump of antimatter. This consumes way more energy than whatever will be released in the explosion.

      This is why no human will be able to see antimatter in visible quantities.

      --
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    73. Re:Energy Conversion by T-Ranger · · Score: 1

      This is /. That rate would be a significant improvement for most of us.

    74. Re:Energy Conversion by Esion+Modnar · · Score: 1

      Or as measured in Olympic swimming pools? Oh, my head asplode.

      --

      They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
    75. Re:Energy Conversion by coaxial · · Score: 1

      Burning Libraries of Congress(es?)

      Yes, it would be "Libraries of Congress". Library being the subject, and "of Congress", being the modifier. It's similar to "Attorneys General".

    76. Re:Energy Conversion by Wes+Janson · · Score: 1

      Well, an atomic bomb only converts a small fraction of the mass into energy. However, in an ideal matter/antimatter reaction, all of the material is destroyed, releasing energy. I would imagine an antimatter hydrogen bomb would have essentially the same yield as one made of normal matter. It would simply be much more efficient to just let the antimatter annihilate.

    77. Re:Energy Conversion by rossdee · · Score: 1

      "Any self-respecting supervillain uses neutronium/anti-neutronium."

      I didnt think there was such a thing as an anti neutron since a neutron has no charge. (an anti particle is the same as a particle but with the opposite charge).

    78. Re:Energy Conversion by NoMoreNicksLeft · · Score: 1

      A neutron is essentially a tightly bound electron and proton. Under certain circumstances, it can even decay into those, no?

      But at a fundamental level, all baryons are composed of quarks and anti-quarks. 6 types of each. The neutron has what, +2/3 charge (forget which quark this is) and two -1/3 charge quarks. The proton is the complement, with one -1/3 charge quark and and two +2/3 charge quarks. Coming out to round numbers.

      But what if the neutron has the anti-quark components? Then, it has -2/3 charge quark, and the two +1/3 charge quarks. Still 0 total charge, but composed of anti-matter. More importantly, neutrons and anti-neutrons have total charges of 0, meaning there is no repulsion effect at any level... they'll mix more readily than a positron in a world made up of alot of protons. Not that regular anti-matter will have too tough a time of this.

      At least this is my flunky understanding of things.

    79. Re:Energy Conversion by NoMoreNicksLeft · · Score: 1

      Oh, and I forgot. Keep in mind there are particles that have no anti-particles, just that neutrons don't belong in that category. Or maybe, technically, that those particles are their own anti-particles. Photons come to mind. Can't think of any others.

    80. Re:Energy Conversion by Detritus · · Score: 1

      Most of the energy from the most powerful nuclear weapons was derived from the fission of the bomb jacket, composed of U235 or U238. I don't have any numbers handy, but I believe they were pretty efficient at "burning" the lithium deuteride used as the fusion fuel.

      --
      Mea navis aericumbens anguillis abundat
    81. Re:Energy Conversion by shawn(at)fsu · · Score: 1

      I took that class 3 years ago, I even looked at the notes (Still online go FSU:) and oculdn't do it. College seems like a past life now.

      --
      500 dollar reward for tip(s) leading to the arrest of the person(s) who stole my sig.
    82. Re:Energy Conversion by shawn(at)fsu · · Score: 1

      Do you have any idea how many of my peers at college thought I said cosmetology and not Cosmology and that was when I said it so there wasn't a spelling mistake. These were people that i had respect for and they thought I was taking a makeup class.

      Should have taken a few classes in spelling

      --
      500 dollar reward for tip(s) leading to the arrest of the person(s) who stole my sig.
    83. Re:Energy Conversion by Anonymous Coward · · Score: 0

      I like Units involving Elephants also. I just like speed to measured in furlongs/fortnight...

    84. Re:Energy Conversion by Rakarra · · Score: 1
      Energy.. matter.. what's the difference?

      Nothing is ever truly -destroyed-.

    85. Re:Energy Conversion by clambake · · Score: 1

      I present to you the Antimatter Calculator - it actually releases less energy than I would have thought since an entire kilo is slightly less powerful than the most powerful nuke ever detonated (although still a helluva lot of power, ~40 kilotons/gram)

      Sweet! My mass contains about 3.6 Gigatons of explosive force... Beware!

    86. Re:Energy Conversion by Keith+McClary · · Score: 1

      I present to you the Antimatter Calculator - it actually releases less energy than I would have thought since an entire kilo is slightly less powerful than the most powerful nuke ever detonated (although still a helluva lot of power, ~40 kilotons/gram)

      The article sez:
      1 gram of antimatter, about 1/25th of an ounce, would equal "23 space shuttle fuel tanks of energy"

      According to NASA:
      http://spaceflight.nasa.gov/shuttle/referen ce/shut ref/srb/srb.html

      each of the two solid rocket boosters contains 1,100,000 pounds or 500 tons of fuel so 23 shuttles would have 23 kilotons. This is in the right ballpark - I don't know the energy content of shuttle fuel vs. TNT.

      Just checking.

    87. Re:Energy Conversion by Anonymous Coward · · Score: 0

      Energy... matter... what's the difference?

      Energy is conserved. Matter is not.

    88. Re:Energy Conversion by maxwell+demon · · Score: 1
      Antimatter would be a very viable fuel for a lightweight probe to other star systems.

      Of course, as long as you don't have Dilicium crystals, all that antimatter won't help you to build a Warp drive anyway. :-)
      --
      The Tao of math: The numbers you can count are not the real numbers.
    89. Re:Energy Conversion by maxwell+demon · · Score: 1

      Energy is an observable. Matter is a substance. Matter has energy, not the other way round.

      On a more fundamental level, matter is made of fermionic fields (quark fields and lepton fields), while energy is something every field has. And yes, matter can be truly destroyed: If an electron (matter) hits a positron (antimatter), the result is two photons (electromagnetic radiation, bosonic, no matter). Of course energy is conserved in this process (as it is in every other process not involving general relativistic effects).

      --
      The Tao of math: The numbers you can count are not the real numbers.
    90. Re:Energy Conversion by 6th+time+lucky · · Score: 1

      Well if we take highly reliable sources (from other posts) that
      one SSFT = 0.233x10^14 joules and
      one kiloton of TNT = 4.6x10^12 joules,
      and Hiroshima bomb = 12 kilotons of TNT

      We get that one SSFT is roughly a half a Hiroshima Bomb (HHB). So 1g of antimater is 23 HHBs, so lets just call it 12 Hiroshima's.

      12*12=144 Kilotons, about the yield of a cold war ICBM warhead...

    91. Re:Energy Conversion by clambake · · Score: 1

      ure, it doesn't weigh any less, but you can pack 50 million tons of it in a suitcase.

      And the best part is you don't even have to leave your base at that point, you just wait for your enemies to be gravitationally sucked towards you.

    92. Re:Energy Conversion by mewphobia · · Score: 1
      and hot vulcan chicks :D

      Are they anything like naked klingon women ?

    93. Re:Energy Conversion by jpop32 · · Score: 1

      Do we need any more proof this is a type 13 planet in it's final stages?

      I don't know. What is a type 13 planet? :-)

      No, seriously, could you clarify the reference?

    94. Re:Energy Conversion by Anonymous Coward · · Score: 0

      "leave on a space ship with warp drive and hot vulcan chicks :D", eh?

      Didn't Vulcans mate once every seven years?

      Careful what you wish for...

    95. Re:Energy Conversion by jonadab · · Score: 1

      > Still, I guess there is one good thing that will come of this: I always
      > felt we should spend more money on basic research and less on the military.
      > Here, the military is spending its money on basic research ;)

      The military has been spending money on basic research for years. It's just
      that usually they keep it classified until it's thoroughly redundant with
      research that has been done elsewhere. But they do do it.

      --
      Cut that out, or I will ship you to Norilsk in a box.
    96. Re:Energy Conversion by abb3w · · Score: 1
      which is nice because the high-energy gammas you'd get from P+/P- annihilation would spall off neutrons from just about everything

      While you're absolutely correct about positronium (hadn't noticed that in the article), I'm not sure you would get that problem with even regular antimatter. Yes, 900MeV is enough to knock a proton or neutron loose from an existing nucleus; in fact, I'd back-of-the-envelope that it's enough to completely blow apart any atom with a baryon count under 100, possibly higher. (Iron, count of 50ish and the strongest binding, is held together by about half a proton mass IIR.)

      However, gamma rays above .511 MeV (electron mass) tend to "self-scatter" due to vacuum pair production. The photon tends to turn into an electron/positron pair. (Other more exotic particles are possible, but really exotics are less likely, and behave roughly the same.) If the pair comes back together, no-one notices, but this is less and less likely at higher and higher energy levels. Otherwise, you have a high energy (standard) Beta-Minus and high energy (antimatter) Beta-Plus, each averaging about half the original Gamma in mass/energy, with .511 MeV each tied up in mass. The Beta-Minus downscatters off matter in the area, resulting in lower energy beta-minus particles and X-rays (or gamma rays). The Beta-Plus will hit a normal electron (with presumably negligble kinetic energy of its own), and you will have two gammas headed off, each with about half the mass-energy of the moving poistron/stationary electron pair.

      Vacuum pair production self-scatter is more and more likely the higher your energy level. So, you're pretty unlikely to directly detect 900 MeV Gammas at any range where your detector (or you) would survive.

      Of course, you will get an EMP like the wrath of god from all those Beta-Minus particles, ionizing everything in the neighborhood. But you probably wouldn't get that many weird neutron-count isotopes.

      --
      //Information does not want to be free; it wants to breed.
    97. Re:Energy Conversion by Alsee · · Score: 1

      If I've done the calculations right, the energy released by one kilogram of matter interacting with one gram of antimatter

      Considering that one gram of antimatter interacts with one gram of matter, and that raising the matter to one kilogram has no effect at all, me thinks your calculations may be suspect :)

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    98. Re:Energy Conversion by Anonymous Coward · · Score: 0

      And as he pointed out most of the energy in question simply will not be generated or absorbed by the human digestive tract. Thx for playing.

    99. Re:Energy Conversion by Dyolf+Knip · · Score: 1

      Which raises an excellent question. Just what does antimatter _look_ like?

      --
      Dyolf Knip
    100. Re:Energy Conversion by KillboyPHD · · Score: 1
      "If I've done the calculations right, the energy released by one kilogram of matter interacting with one gram of antimatter"

      Considering that one gram of antimatter interacts with one gram of matter, and that raising the matter to one kilogram has no effect at all, me thinks your calculations may be suspect :)

      I noticed that after posting. I even previewed. :(

      Nonetheless, the calculations were based on one gram each. One kilogram each resulted in 33 million elephants.

      One gram each is also roughly equivalent to 40 million bowls of petunias dropped from 100 km. Yet only 1,600
      blue whales.
      --
      Bah weep granah, weep ninny bong!
    101. Re:Energy Conversion by CSG_SurferDude · · Score: 1

      Um.....

      Last time I checked the US Air Force existed was back in the 1950s, and has been fully integrated with the UNSP (United Nations Space Patrol) since approximately 1965.

      And what is this "Anti-Matter" which you keep talking about?

    102. Re:Energy Conversion by kesuki · · Score: 1

      sure, there was this show called The LEXX on Sci-fi they still show it in reruns at late night... towards the end of the series they're on earth and they're stuck there, and the android head determines that earth is a 'type 13' planet in it's last phases.. which means essentially they're going to blow the whole planet up soon. which happens in the show though determining the exact mass of a higgs-bosson particle... very wierd show, which is primarilly what made me watch it.

    103. Re:Energy Conversion by hesiod · · Score: 1

      > Just like you count in Megadeaths and not Kilodeaths?

      The curse of the pedant... It's Megadeths! Only one "a." :P

    104. Re:Energy Conversion by Lars+T. · · Score: 1

      For better or worse - there is only one Megadeth - no "s"s.

      --

      Lars T.

      To the guy who modded me down from perfect to terrible Karma - Apple haters still suck

    105. Re:Energy Conversion by tommyboyprime · · Score: 1

      Holy Crap! Don't tell Dan Brown about this! Oh, never mind.

      --
      This parrot has ceased to be!
    106. Re:Energy Conversion by Blastrogath · · Score: 1

      Wouldn't the remaining antimatter left over from the fission reaction react with the atmosphere anyway? I'd think you'd get about the same yeild as a normal antimatter bomb.

      The problem with testing this is: how are you going to make antimatter heavy metals??

      --
      "The price good men pay for indifference to public affairs is to be ruled by evil men." -Plato
    107. Re:Energy Conversion by Scorillo47 · · Score: 1

      It will look exactly as the normal matter. The interaction of antiparticles with photons would be exactly the same. Also, remember that the photon is its own antiparticle...

      --
      Don't try to use the force. Do or do not, there is no try.
    108. Re:Energy Conversion by neonleonb · · Score: 1

      I'm afraid you don't recall correctly. Fusion has nothing to do with electrons; it only involves particles in the nucleus. A deuterium and a tritium nucleus combine, producing a helium nucleus (two protons and two neutrons) and a spare neutron. Sure enough, the measured mass of the resulting particles is less than that of the original particles by an amount corresponding to the quantity of energy released.

    109. Re:Energy Conversion by Lehk228 · · Score: 1

      in each unit of the reaction you end up with a neutron that becomes a proton, but rather than releasing an electron (yes you can do a Neutron electron+proton, that is how neutron stars form) it is the electron (or more accurately, probably the quarks that make up what would be that electron if not for converting to EM radiation) that becomes energy.

      --
      Snowden and Manning are heroes.
    110. Re:Energy Conversion by abb3w · · Score: 1
      Any self-respecting supervillain uses neutronium/anti-neutronium.

      The difference between proton and neutron mass is around 1 part in 1800, not enough to change the radiation spectrum appreciably; it still downscatters off even bare vacuum to .5MeV in a hurry. The heavier mass of the bomb mostly just changes how high the scenery bounces.

      --
      //Information does not want to be free; it wants to breed.
  2. So when... by Dagny+Taggert · · Score: 1

    ...do we get to see the dilithium crystals?

    --
    Don't be a looter...and yes, I know that it's spelled with an "A" instead of an "E".
    1. Re:So when... by Bowling+Moses · · Score: 4, Funny

      No no you're thinking of naquadria.

    2. Re:So when... by Anonymous Coward · · Score: 0

      Exactly, when is the Air Force going to announce the existance of the Star-Gate?

    3. Re:So when... by DHalcyon · · Score: 1

      What? Dilitium? Why are you using ancient technology? Trilitium, if anything!

    4. Re:So when... by ducomputergeek · · Score: 1

      Dude, I think you need to lay of that wacky naquada. Really...

      --
      "The problem with socialism is eventually you run out of other people's money" - Thatcher.
    5. Re:So when... by Hinhule · · Score: 0

      Only if they'll let him call it "The Enterprise" "All my life I have been stickin' it to the man, I don't think I can be the man." - Jack O'Neill

  3. Relative Measurements by TrollBridge · · Score: 0, Redundant
    "1 gram of antimatter would equal 23 space shuttle fuel tanks of energy."

    But what I really want to know is how many Libraries of Congress it could contain.

    --
    There's a Mercedes gap too. I want one and can't afford one, but it's not government's job to do anything about it.
  4. Space Shuttle Fuel Tanks? by Wizzy+Wig · · Score: 3, Funny

    SSFTs are now units of energy?

    1. Re:Space Shuttle Fuel Tanks? by FienX · · Score: 1

      Sure, it can join the ranks of LOCs and VWBFOT (VW Beatles Full Of Tapes)

    2. Re:Space Shuttle Fuel Tanks? by Anonymous Coward · · Score: 0

      In my day, we measured our weapons' power in megarods-drams, and that's the way we liked it!

    3. Re:Space Shuttle Fuel Tanks? by TFGeditor · · Score: 5, Funny

      In Texas, "shitload" is an official unit of measurement. I suspect this technology will yield energy on a scale several orders of shitload greater than any other to date this side of the sun.

      --
      Ignorance is curable, stupid is forever.
    4. Re:Space Shuttle Fuel Tanks? by tool462 · · Score: 1

      Why not? Makes about as much sense as feet & inches.

    5. Re:Space Shuttle Fuel Tanks? by DirtyJ · · Score: 1

      Several orders of shitload = a "Fuck-ton"

    6. Re:Space Shuttle Fuel Tanks? by Anonymous Coward · · Score: 0
      On the subject of Space.... perhaps this technology is why SETI@Home never finds anything.

      Once you get to this level of technological development, you find that every terrorist can make an antimater bomb and we all blow each other up?

    7. Re:Space Shuttle Fuel Tanks? by Anonymous Coward · · Score: 0

      ...'nuff to level Hell's half-acre.

    8. Re:Space Shuttle Fuel Tanks? by Anonymous Coward · · Score: 0

      barf! bad! no!
      we're not just researching antimatter for the energy...

    9. Re:Space Shuttle Fuel Tanks? by Void_of_light · · Score: 1

      I prefered the use of "metric fuck load" as the biggest unit of measurement available.

      and I am from Texas

    10. Re:Space Shuttle Fuel Tanks? by Mulletproof · · Score: 1

      Actually, I was thinking the energy produced with this technology would require a greater unit of measurment, such as the Metric Ass-Ton©. Ass-Tons of energy would surely be a more effcient unit of measurments than their smaller shitload counterpart concerning anti-matter.

      --
      You need a FREE iPod Nano
    11. Re:Space Shuttle Fuel Tanks? by theonetruekeebler · · Score: 1

      The shitload has two qualified forms: the metric shitload and the whole shitload. A metric shitload is slightly bigger than a shitload, and a whole shitload is a whole shitload bigger.

      --
      This is not my sandwich.
    12. Re:Space Shuttle Fuel Tanks? by TachyonAT · · Score: 1

      yes and 1x10^6 shitloads = 1 fuckton

  5. Antimatter by onkelonkel · · Score: 1, Funny

    All your Dilithium are belong to us.

    --
    None of them can see the clouds; The polished wings don't care.
  6. Oh my word.... by JoeLinux · · Score: 1, Funny

    ...people, we are actually making progress towards making Star Trek: Voyager a reality. I say we petition the Air Force to stop work immediately.

    1. Re:Oh my word.... by Shadow+Wrought · · Score: 1

      I was worried too till I saw that Rick berman was one of the project leads. Since there is no concept to simple, elegant, or powerful that his ego cannot suffocate into oblivion, I think we're safe.

      --
      If brevity is the soul of wit, then how does one explain Twitter?
    2. Re:Oh my word.... by aussie_a · · Score: 1

      But if we do make Voyager we can get rid of all those annoying people. Like the entire cast of Voyager. And plant an atom bomb so they don't come back.

  7. Why, cause nuclear bombs aren't sCary enough? by Anonymous Coward · · Score: 0

    NT

    1. Re:Why, cause nuclear bombs aren't sCary enough? by JeanBaptiste · · Score: 3, Interesting

      Good question. I'm curious if these will be radioactive like nukes. If you got the 'bang' without having the radioactivity, wouldn't that be _less_ scary than a nuke? I'm obviously not a quantum physicist, and I dont even play one on /.
      Perhaps one of you big-brained types could enlighten me? Thanks.

    2. Re:Why, cause nuclear bombs aren't sCary enough? by Skye16 · · Score: 4, Interesting

      That kind of depends on what scares you more... a higher propensity to use these weapons due to low radiation or a great fear of using these weapons due to high radiation.

      I'm scared shitless either way.

    3. Re:Why, cause nuclear bombs aren't sCary enough? by NoMoreNicksLeft · · Score: 5, Interesting

      Less radioactive. Alot of what you see in a fission bomb is the "unburnt" materials being dispersed by the explosion, the fallout. This just won't exist with anti-hydrogen (I'm assuming this is the most synthesizable element). However, even with fission, not all of it exists beforehand, when you have neutrons flying fuckfast all over the place, some stick in a nucleus here and there producing what are usually small halflife radioactive elements. A m/am would produce lots of all different sorts of radiation and fast particles... there is sure to be something created that lasts longer than a split second. And of course, immediately after the explosion, everything far enough away to avoid being vaporized will be dosed heavily.

      It might very well be more scary, and not just from a power perspective... assume something as big as a nuke, but as (nearly) clean as a conventional explosive. The temptation to use it might be greater, the inhibitions even less.

      BTW, anyone want to speculate on H/anti-H bombs? No neutrons to shoot all over the place, but at least a few protons (I'm assuming less than 100% perfect mix). And what happens when an anti-H atom hits oxygen or nitrogen, how does that work exactly?

    4. Re:Why, cause nuclear bombs aren't sCary enough? by Anonymous Coward · · Score: 2, Interesting

      Okay, I know this is going to be a troll but what the hell...

      How is obliterating a country with two or three of these babies any different that obliterating a country with tens of thousand of 500 lb bombs like we did to Germany in WWII? The net effect is the same. The only really scary thing about nukes was the effects of radiation.

      We've forgotten what war is supposed to be. It's supposed to be brutal, ugly, horrible, and something we don't want to do on a regular basis. But war is also supposed to be a process by which we destroy stuff and kill people.

    5. Re:Why, cause nuclear bombs aren't sCary enough? by Anonymous Coward · · Score: 0
      And what happens when an anti-H atom hits oxygen or nitrogen, how does that work exactly?
      You are limiting your thinking to the atomic level. Don't.

      The protons/electrons in the O2 or N2 atoms will react just fine with the anti-protons/positrons of the anti-H atom. The question is what the leftovers will look like. If your standard oxygen atom is made up of 8 protons, 8 neutrons & 8 electrons, then (theoretically) 8 anti-H atoms will be required to destroy it. And then you will have released the 8 neutrons (at low energy though?)

      But I don't think it's really that simple. If a single anti-H atom approaches a single oxygen atom, the anti-H positron will annihilate with an electron. Their opposite charges will attract & almost guarantee this. But now will the anti-proton (negative charge) be able to penetrate the still existing electron (negative charge) shells of the oxygen atom to reach the protons in the nucleus? There should be repulsion there, however now the overall charge of the oxygen atom is positive. So the anti-proton should be attracted to the positively charged oxygen ion, but repulsed by the electron shell and unable to penetrate (unless it's energy is high enough.)

      But that brings up something interesting. Take a mercury (Hg - atomic #80) atom, shoot it with a high-energy anti-proton, and BINGO you have a gold atom (Au - atomic #79). Shoot it again and you'll have platinum.

      rho
    6. Re:Why, cause nuclear bombs aren't sCary enough? by benna · · Score: 1

      From the article it seemed to me that they would just use positrons, not whole anti-atoms.

      --
      "It is not how things are in the world that is mystical, but that it exists." -Ludwig Wittgenstein
    7. Re:Why, cause nuclear bombs aren't sCary enough? by Blethrow · · Score: 1


      Also remember that atoms in such an environment are likely to be very highly ionized. I imgaine that most light nuclei that are close enough to the blast to be able to interact with scattered antimatter would have lost most or all of their electrons.

    8. Re:Why, cause nuclear bombs aren't sCary enough? by NoMoreNicksLeft · · Score: 1

      They must know more about it than me, but manipulating positrons seems even more problematic than atomic antimatter.

    9. Re:Why, cause nuclear bombs aren't sCary enough? by planckscale · · Score: 1

      You forget that our conventional bombs nowadays are full of depeleted uranium. The effects of which are probably just as damaging as the residue of a nuke. Who would want to work in an area of high radiation levels even it was to only collect remnants of your carpet bombing..

      --
      Namaste
    10. Re:Why, cause nuclear bombs aren't sCary enough? by radtea · · Score: 1


      BTW, anyone want to speculate on H/anti-H bombs? No neutrons to shoot all over the place,


      Repeat after me: gamma rays with energies higher than a few MeV make lots and lots of free neutrons when they interact with matter. A surprising number of people on /. are apparently not aware of this well-known fact.

      It goes like this: the binding energy of your average nucleon is 6 to 8 MeV. H/anti-H would produce gammas with energies up to just under 1 GeV. In their travels through nearby matter, those gammas will knock quite a few neutrons out of nuclei.

      This will have two effects. One, the neutrons will get absorbed by other stuff, producing radioactive isotopes. Two, the nuclei that have been busted up will themselves leave radioactive daughters (just use your imagination for the lame sexist joke at this point, ok, and don't bother to post it, please. "Daughters" is the correct technical term.)

      The lifetime of the radioactive products will depend on the average atomic number of stuff the gammas pass through. If it's mostly light elements, the fallout will be short-lived, if it's mostly heavy elements the fallout will be long-lived.

      --Tom

      --
      Blasphemy is a human right. Blasphemophobia kills.
    11. Re:Why, cause nuclear bombs aren't sCary enough? by NoMoreNicksLeft · · Score: 1

      Nice tone asswad. I think I mentioned something along those lines in my own post, and this from a highschool dropout. Excuse me if I didn't have 8 years of college in particle physics and nuclear chemistry. Personally, I don't find it suprising at all that most of the slashdot crowd doesn't know the exact details of what would happen, just as myself I don't know what would. But please continue with your arrogant condescending tone...I'd hate to be deprived of you treating me like an idiot.

      Go to hell.

    12. Re:Why, cause nuclear bombs aren't sCary enough? by radtea · · Score: 1

      I'm not treating you like an idiot. If I thought you were an idiot I'd've not replied at all.

      Although tone is easily misread, I see that my reply could be read as kinda rude. It was not intended to be. My apologies.

      --Tom

      --
      Blasphemy is a human right. Blasphemophobia kills.
    13. Re:Why, cause nuclear bombs aren't sCary enough? by NoMoreNicksLeft · · Score: 1

      No problem then. Maybe I'm inaccurate... I've only my intuition to rely on when I imply that an anti-matter weapon wouldn't create too many radioactive daughter particles. Just have no clue how you'd even calculate it, though to me it seems rather insignificant. It's just that I did mention they'll exist... you can't have that much energy and weird particles flying around, and not cooking up something spicy in the rad department. I'm still rather certain that the bulk of it in a fission device (and fusion devices have a fission bomb at their core, folks) is unburnt fissile material from the core. Even with an extremely precise implosion, only the smallest fraction of plutonium atoms will be knocked apart, right?

    14. Re:Why, cause nuclear bombs aren't sCary enough? by Art+Tatum · · Score: 1

      when you have neutrons flying fuckfast all over the place

      I think I found my new .sig!

  8. Oooops by Anonymous Coward · · Score: 5, Funny

    In other news... The air force research center suddenly dissappeared along with 200.000 square kilometers of land. Nobody from the research center was available for comment.

    1. Re:Oooops by Anonymous Coward · · Score: 0
      In other news... The air force research center suddenly dissappeared along with 200.000 square kilometers of land

      I was assuming the blast would be circular. :)

      ...and yes, I know his post is technically correct.

    2. Re:Oooops by tarius8105 · · Score: 0

      +1 Insightful?! havent you heard of a joke!?

    3. Re:Oooops by cayenne8 · · Score: 1
      "In other news... The air force research center suddenly dissappeared along with 200.000 square kilometers of land. Nobody from the research center was available for comment."

      Yup...and if it was in the US, wouldn't be in sq. kilometers...would be reported in square miles...

      :-)

      Funny joke tho....

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    4. Re:Oooops by Anonymous Coward · · Score: 0

      In other news... The air force research center suddenly dissappeared along with 200.000 square kilometers of land.

      Wow... when they talk about the incredible precision of modern weapons, they sure aren't kidding!

    5. Re:Oooops by Anonymous Coward · · Score: 0

      Guess that S^2 engine isn't ready for production yet.

  9. How about research them... by GillBates0 · · Score: 1, Insightful
    as an energy source.

    But destructe research wins over constructive alternatives hands down.

    --
    An Indian-American Hindu committed to non-violent thought/speech/action alarmed by the global explosion of radical Islam
    1. Re:How about research them... by TrollBridge · · Score: 1

      Yup, I mean think of how good an energy source that nuclear energy could be! But NOOOOO, they had to go make a BOMB out of it!!

      Wait, you mean to say we have nuclear energy today largely because of prior nuclear weapons research?

      --
      There's a Mercedes gap too. I want one and can't afford one, but it's not government's job to do anything about it.
    2. Re:How about research them... by dsanfte · · Score: 1

      As correct as you are, that particular argument "template" you use is quite cliche and tiresome.

      --
      occultae nullus est respectus musicae - originally a Greek proverb
    3. Re:How about research them... by nacturation · · Score: 4, Insightful

      But destructe research wins over constructive alternatives hands down.

      Given that matter + anti-matter is a purely destructive process to begin with, it isn't surprising that this is a key area of military research. On the brighter side, tons of everyday inventions funnel down from military funded projects, so it's not all doom and gloom.

      --
      Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
    4. Re:How about research them... by ikkonoishi · · Score: 1

      The problem with antimatter is it either provides too little energy or too much of it.

      If you keep enough of it around to use as fuel for a power plant then you have a chance of the magnetic containment field failing and your facility converted to component atoms.

    5. Re:How about research them... by YetAnotherAnonymousC · · Score: 1

      Gee, do you think maybe it's because it would take WAY MORE energy to create the antimatter in the first place? Antimatter doesn't grow on trees, you know (and thank god for that).
      This is the same reason your power plant runs on gas or coal rather than smokeless gun powder. It takes more energy to make the powder than you get back out.
      When you need a weapon with quick energy release, however, you care less about wasting energy in the process.

    6. Re:How about research them... by koreth · · Score: 4, Informative

      As energy storage, maybe. But right now it takes millions of times more energy to produce a unit of antimatter than you get by annihilating that unit afterwards.

    7. Re:How about research them... by ch-chuck · · Score: 2, Insightful

      Silly boy - we need anti-matter weapons to secure mid-east oil supplies.

      --
      try { do() || do_not(); } catch (JediException err) { yoda(err); }
    8. Re:How about research them... by Anonymous Coward · · Score: 0

      Nearly every argument on this entire damn website is cliche and tiresome. Occassionally something interesting pops up in the comments, but it's all mostly reheated bullshit.

    9. Re:How about research them... by hazem · · Score: 2, Funny

      If you keep enough of it around to use as fuel for a power plant then you have a chance of the magnetic containment field failing and your facility converted to component atoms.

      At least it won't have all that nasty residual radiation. Sure, there will be one big-ass hole in the ground, but I suppose we could just make a lake out of it.

    10. Re:How about research them... by kfg · · Score: 3, Insightful

      Because of the vast amount of energy required to create antimatter. The sun is an energy source because it's there and only needs to be harnessed. Likewise sun created energies such as wind, wood and petroleum. The energy has already been created and stored.

      Any energy you have to 'make' invokes the Second Law. This doesn't mean you shouldn't bother, because we still need ways to store and transfer energy, which is what we do with hydrogen, antimatter or storage batteries. The fact they are total energy negative isn't the point, it's that they put the energy where we want it in an extractable form.

      And extracting energy where you want it is what weapons technology is all about.

      Lots of energy. It doesn't matter what that energy cost you in energy.

      KFG

    11. Re:How about research them... by Nos. · · Score: 1

      True, but when you're looking at weapons research, its not as important that you get more energy in release. The goal of a weapon is not to produce energy but to hamper your enemy (kill/disable troops, infrastructure, communications, etc)

    12. Re:How about research them... by Minwee · · Score: 1

      You want to use antimatter as an energy source? Find a source of antimatter first.

      You can't drill for the stuff in the Anti-Middle East or anything, you know.

      Before the guys at Hangar 18 can make their weapons with 23 times the energy of a space shuttle fuel tank, they're going to have to figure out how to produce and store large amounts of antimatter. That's the research that you should be doing first for any purpose, destructive or constructive.

    13. Re:How about research them... by lukewarmfusion · · Score: 1

      In this case, it's somewhat irrelevant (for reasons other posters have mentioned).

      But as a general rule, it's hard to come up with the billions of dollars of taxpayer grant money that would go into such research... unless it comes from a Defense budget or something similar.

      Besides, there are an awful lot of technical innovations that come as a result of weapons/defense research.

    14. Re:How about research them... by pz · · Score: 5, Informative

      Uh, basic physics, people. The Universe is comprised of matter, not anti-matter. You can make anti-matter, but it takes a heapload of energy (recall that E=mc^2 applies to anything that has mass), and you cannot go out and mine anti-matter. Why? Mostly because if there were any antimatter around, it would have a nasty tendency to interact with all that matter and be converted to energy.

      So, you can use it to create a nice bomb, but it's equivalent to pumping up a pressurized bottle with a lot of air -- the only energy that's going to come out is the energy that you've put in to create the anti-matter. You make some anti-matter, find a way to confine it and later release it in a controlled fasion and you get a very nice bomb which is incredibly powerful given the mass of the active ingredients. But you cannot use it as an energy source because unlike coal, oil, natural gas and uranium, it isn't freely available: you have to make it.

      This is in stark contrast with nuclear fusion and fission: there is lots of available material lying around in the ground and in the seas, just waiting to be extracted and used. While you can find ways of generating anti-matter without putting too much energy into the process (eg, by triggering nuclear decay) you just don't get that much mass very quickly. Unless, of course, you've got a right raging nuclear reaction going, and, then, well, your problems of bomb making are pretty well solved.

      --

      Put my fist through my alarm clock with its ding-dong death inside my ear. - The Blackjacks.
    15. Re:How about research them... by YetAnotherAnonymousC · · Score: 1, Insightful

      You are correct. And further, the question of whether its better to maim a solider and thus require several of his buddies to carry him off, or kill him outright. Hence the question of 5.56mm vs. 7.62mm, etc.

    16. Re:How about research them... by NanoGator · · Score: 2, Insightful

      "How about research them...as an energy source.
      But destructe research wins over constructive alternatives hands down."


      Um, yeah, so? Desctructive research is cheaper, and gee, that's also the job of the airforce. What do they need an anti-matter power source for? That's like complaining that cheetahs eat animals when they could be protecting them from other predators.

      --
      "Derp de derp."
    17. Re:How about research them... by Punto · · Score: 1
      as an energy source.

      Really, they're getting it all wrong.. They're supposed to try to use it for the good of man kind, untill it falls on the hands of some evil scientist bent of dentroying the world.. You don't just start building weapons with it!!

      --

      --
      Stay tuned for some shock and awe coming right up after this messages!

    18. Re:How about research them... by Tackhead · · Score: 1
      > Before the guys at Hangar 18 can make their weapons with 23 times the energy of a space shuttle fuel tank, they're going to have to figure out how to produce and store large amounts of antimatter. That's the research that you should be doing first for any purpose, destructive or constructive.

      I can think of a method that's pretty close to breakeven. Starting with 23 space shuttle fuel tanks full of hydrogen and oxygen, it ends up with 22 empty space shuttle fuel tanks that you can reuse... and one very large bomb.

      Problem is, the bomb needs a space shuttle to deliver it.

    19. Re:How about research them... by ThosLives · · Score: 1
      That's like complaining that cheetahs eat animals when they could be protecting them from other predators.

      You have, in this one sentence, summed up a great many of my observations on the strange rhetoric of many ... rhetoric - spewing ... groups!

      --
      "There are a dozen opinions on a matter until you know the truth. Then there is only one." - CS Lewis (paraprhase)
    20. Re:How about research them... by aquabat · · Score: 1

      Matter and antimatter are both equally good energy containers. Separation issues aside, all we need to do is find a more efficient conversion path from one of these containers to the other.

      --
      A republic cannot succeed till it contains a certain body of men imbued with the principles of justice and honour.
    21. Re:How about research them... by Tassach · · Score: 4, Interesting
      Hence the question of 5.56mm vs. 7.62mm, etc.
      Urban legend. The downward trend in military rifle cartidge power ( .30-06 to 7.62NATO to 5.56NATO ) has nothing (or very little) to do with the propensity to kill or wound.

      During WWII we found that the standard-issue rifle round (.30-06 at the time) was a lot more powerful than it needed to be. Going into the war, they expected infantrymen to be able to conduct aimed fire out to 600 - 1000 yards, so they adopted a rifle (M-1) and cartidge which was effective at these ranges. However, once they actually looked at real-world performance they found that soldiers were doing very little aimed fire and that most targets more than 250 yards away were engaged with heavy weapons.

      In keeping with these findings, they redesigned the primary infantry weapon to have a less powerful cartridge that had full-auto capability to provide suppressive fire vs aimed fire. A smaller cartridge means that an infantryman can carry more rounds for the same weight. This gave us the M-14. The problem with the M-14 was that it was still too powerful for an average soldier to fire it on full auto. So, they went to an even lighter rifle & cartidge and got the M-16.

      --
      Why is it that the proponents of "one nation under God" are so eager to get rid of "liberty and justice for all"?
    22. Re:How about research them... by Anonymous Coward · · Score: 0

      I used up my latest batch of mod points this morning. Had I not done so, your comment would be a +5 insightful right now.

    23. Re:How about research them... by Anonymous Coward · · Score: 0


      On the brighter side, tons of everyday inventions funnel down from military funded projects, so it's not all doom and gloom.
      ... holding my breath for that anti-matter powered cell phone that is gonna funnel down in a few years.

    24. Re:How about research them... by BlueTooth · · Score: 1

      Right. Antimatter is a way of solving energy storage problems, not energy production problems. That's why they want to use this for bombs and spaceships, not powerplants.

      --
      SPAM
    25. Re:How about research them... by fymidos · · Score: 1

      >you mean to say we have nuclear energy today
      >largely because of prior nuclear weapons research?

      no, but if you want to look for the "good" side of nuclear weapons research, you can say that we have nuclear energy because nuclear weapons were not actually used.

      Also, because the nuclear weapons companies had to make a living.

      --
      Washington bullets will simply be known as the "Bulle
    26. Re:How about research them... by El · · Score: 1

      And besides which, testing destructive weapons is so much more fun than constructive alternatives? "What shall we do today, General?" "Son, I beleive we'll blow the crap out of something!"

      --

      "Freedom means freedom for everybody" -- Dick Cheney

    27. Re:How about research them... by Carnildo · · Score: 0, Redundant

      Actually, making antimatter *can* be a net plus in energy. Synthesizing the antimatter out of thin air takes MC^2 energy, but reacting it with matter releases 2*MC^2 -- you don't need to synthesize the regular matter, but you still get the energy from reacting it!

      --
      "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
    28. Re:How about research them... by Anonymous Coward · · Score: 2, Informative

      You are both correct and way off base. The 5.56, while technically not as powerful as the 7.62 round has one distinct advantage over it's larger competitor. The 5.56 round "tumbles" and shreds on impact, thus causing a considerable amount more damage to the target. A 7.76 round at medium range will, if it misses a bone, pass right through the target leaving them with a good chance of living via a clean wound.

      However, someone shot with a tumbling 5.56 will be more likely to sustain tremendous internal injuries that will require immediate medical attention or otherwise result in death.

      The 5.56 is smaller, but much much nastier.

    29. Re:How about research them... by greenegg77 · · Score: 1

      Actually, a better comparison would be the M-14 "toe-popper" vs the M-16 "bouncing Betty" landmines. The M-16 pretty much kills the person who tripped it and maybe a couple of unfortunate souls who were tailgating him), while the M-14, as its nickname suggests, just removes part of your foot.

      --
      --- This .sig for sale - $500 OBO.
    30. Re:How about research them... by greenegg77 · · Score: 2, Funny

      Correction - The bomb needs 23 space shuttles to deliver it...

      --
      --- This .sig for sale - $500 OBO.
    31. Re:How about research them... by builderbob_nz · · Score: 1

      And further, the question of whether its better to maim a solider and thus require several of his buddies to carry him off, or kill him outright.

      I guess that depends on the situation. Basically kill him (OK... or her) to put him out of his misery and save him from horrible disfigurment, or wound him and not only remove him from the fight, but also the two guys that it takes to pull him away from the line and look after him.

      --

      Karma? Hey I just call it as I see it.
    32. Re:How about research them... by hchaos · · Score: 2, Informative
      Actually, making antimatter *can* be a net plus in energy. Synthesizing the antimatter out of thin air takes MC^2 energy, but reacting it with matter releases 2*MC^2 -- you don't need to synthesize the regular matter, but you still get the energy from reacting it!
      To my knowledge, it is theorectically impossible to synthesize antimatter without creating an equal amount of matter.
    33. Re:How about research them... by Anonymous Coward · · Score: 0

      Not quite correct. The M1 Garand used 7.62x65 (aka 30.06) ammunition. This round was developed in 1906. Powders became much more efficient between 1906 and WWII. As a result there was a lot of wasted space in the cartridge case. After WWII, the US replaced 7.62x65 with 7.62x51 (aka 7.62 NATO). This new shorter cartridge had virtually the same ballistics as 7.62x65, but in a shorter, lighter cartridge case.

      As you noted, the full-auto M14 was uncontrollable. A 9 lb rifle firing a full .30 caliber rifle cartridge full auto just isn't very controllable. The M14 was replaced by the M16, which does fire a cartridge with much less power -- 5.56 Nato.

    34. Re:How about research them... by YetAnotherAnonymousC · · Score: 1

      Well, while you are right about 5.56 vs. 7.62, the "etc." was meant to cover the datum that the pendulum is swinging yet again in that army special forces and others are moving to a 6.8mm diameter. I just assumed that the average slashdotter on this story wouldn't care about a longer explanation. Shows I was wrong.

    35. Re:How about research them... by BlueUnderwear · · Score: 1
      But you cannot use it as an energy source because unlike coal, oil, natural gas and uranium, it isn't freely available: you have to make it.

      Yeah, but having at your disposal a powerful weapons of mass destruction, as this antimatter bomb would be, helps to make sure that said oil stays freely available to you, ha!

      --
      Say no to software patents.
    36. Re:How about research them... by Anonymous Coward · · Score: 0

      Desctructive research is cheaper

      It isn't cheaper for the taxpayer. There is very little return on an investment in weapons, as opposed to an investment in civilian technology.

      That's like complaining that cheetahs eat animals when they could be protecting them from other predators.

      That's like saying that we should give tax money to cheetahs to support their noble efforts.

    37. Re:How about research them... by DARKFORCE123 · · Score: 0

      Some of the best things you use in your every day life have come from military research.

    38. Re:How about research them... by Anonymous Coward · · Score: 0

      The expected aimed fired of 600-100 yards was an offshot of the WW1. Opfor trenches were rather far away. It was assumed that WW2 would be a hell like WW2 so they kept the heavy, long range rifle as the standard one.

      The PIR (Parachutes infantry regiments, for you historically challenged))were issued with lighter rifles which turned out to be as effective in village fighting in normandy in 44-45.

    39. Re:How about research them... by the_2nd_coming · · Score: 1

      yeah, if you lose 10% energy making a container like anti-matter, the benefits outweigh the losses. you have a super duper small amount of mass that contains a super duper duper duper duperduper high energy potential along with it.

      --



      I am the Alpha and the Omega-3
    40. Re:How about research them... by the_2nd_coming · · Score: 1

      are batteries an energy source? well, in the natural sense, not. but neither is anything that we have to destroy to get energy from (petroleum, wood, etc) so making a extremely high energy density container like anti-matter usable in controlled discrete amounts would mean that one could power remote locations like mars, or an interplanetary space mission on very little mass in the way of fuel.

      --



      I am the Alpha and the Omega-3
    41. Re:How about research them... by Anonymous Coward · · Score: 0
      I'm guessing that you never passed your "thermo" class.

      You know, those pesky "laws" and all?

    42. Re:How about research them... by joss · · Score: 1

      The idea of making antimatter for c^2/kg joules and then getting 2c^2/kg back when mixed with matter is *not* forbidden by second law of thermodynamics [if we annhilate twice as much matter as we make then we would have a very effective energy source]. It's forbidden by the fact that we have no way of making antimatter without making matter at the same time.

      --
      http://rareformnewmedia.com/
  10. Non-standard units by Telastyn · · Score: 1

    space shuttle tanks?

    Come on, everyone knows that the standard units for explosive power are pounds of TNT and "times more powerful than the bomb dropped on Hiroshima"

    1. Re:Non-standard units by the_mad_poster · · Score: 1

      Pounds of TNT? That'd be a big number. The typical reference given is in kilotons of TNT, not individual pounds.

      --
      Alito: A vote for Alito is a punch in the eye to put that bitch back in her place!
    2. Re:Non-standard units by Anonymous Coward · · Score: 0

      Your just being anal, the parent post is correct that some mass of TNT is useful for measuring explosive energy, pounds vs kilotons is just moving the decimal.

    3. Re:Non-standard units by Telastyn · · Score: 1

      Acursed metric system! You win again!

      [heh, thanks though. I had forgotten]

    4. Re:Non-standard units by Anonymous Coward · · Score: 0
      If you're talking about "standard units of energy", why not use ergs?

      If you're talking about understandable units of large quantities of energy, I suppose the Hiroshima A-bomb might do.

      Using pounds of TNT might also work-- depending on whether you consider a number expressed in scientific notation to be "understandable".

    5. Re:Non-standard units by multipartmixed · · Score: 1

      kiloton is an imperial unit.
      kilotonne is the metric unit.

      1 kilotonne = ~1.1025 kilotons (assuming my mental math skills are not affected by caffeine deprevation)

      --

      Do daemons dream of electric sleep()?
    6. Re:Non-standard units by sepluv · · Score: 1

      Actually, there is no such thing as a kilotonne. I'm guessing you mean gigagram--as "tonne" is a non-SI (but SI-acceptable) metric shorthand for a megagram.

      --
      Joe Llywelyn Griffith Blakesley
      [This post is in the public domain (copyright-free) unless otherwise stated]
  11. So why are we talking about it? by Anonymous Coward · · Score: 0

    I am glad it is posted here so that those that make a living on this type of research will have to wonder tonight if their funding is going to be cut due to the outing of this secret information. Sweet!

    Now, how can this be used to generate steam for a power plant?

  12. Really... by jsoffron · · Score: 5, Insightful

    isn't this a tremendous waste of money? I'm generally pretty high on national defense, but is our biggest national security threat really that nuclear bombs aren't powerful enough?

    We can not afford a mine shaft gap!

    1. Re:Really... by Mr.+Bad+Example · · Score: 4, Funny

      > I'm generally pretty high on national defense

      Careful...it's a gateway policy. Before you know it, you'll be mainlining the hard stuff like trade agreements.

    2. Re:Really... by harks · · Score: 2, Insightful

      Agreed... nukes are too powerful as it is, for practical use. Why would we need anything MORE powerful?

    3. Re:Really... by pete-classic · · Score: 1

      I don't know much about antimatter, but I'd guess that they'd be smaller (great! more application as terror weapons), safer to store, safer to detonate, and more precise.

      All else being equal, I'd say that no fallout is a good thing.

      'Course, everything I know about antimatter I learned from Scotty and Spock.

      -Peter

    4. Re:Really... by Termina · · Score: 0

      No one thought this was funny? O_o

      Everyone here skip the last 5 minutes of Dr. Strangelove?

    5. Re:Really... by jsoffron · · Score: 5, Funny

      Too late...I've been freebasing Nafta all day... Sweet, sweet NAFTA.

    6. Re:Really... by Mysticalfruit · · Score: 3, Informative

      Here's the thing.

      We've got the bomb. In fact we've got nuclear submarines so fucking quiet you wouldn't even know their in your harbor just chuck full of the little bastards. However, much like spitting into the wind, using said weapons means we get to glow in the dark as well.

      Anti-matter weapons don't have this spit in face problem. We could drop a anti-matter bomb on Iran and flatten the whole country to within an inch of sea level and nobody is going to be dying of cancer from the nuclear fallout.

      It's like the bomb, only much better.

      --
      Yes Francis, the world has gone crazy.
    7. Re:Really... by harrkev · · Score: 1
      safer to store, safer to detonate


      Not quite. I see two posibilites for using antimatter weapons...

      1) Produce when needed -- This takes a LOT of energy. Of course the aircraft will have to carry around its own nuclear or coal power plant (maybe in a trailer aircraft). Of course, and antimatter pistol would be VERY heavy - like a few dozen tons, at least. And no cow could produce enough leather for the holster.

      2) Produce in advance. Perfect for bombs. But storage is EXTREMELY tricky. If the antimatter ever contacts the edges of its container, boom. At least any fissile material (uranium, plutonium, etc.) is very stable in small enough quantities. Antimatter would make great bombs, but I would not want to be within 500 miles of where these are made/stored/launched.

      In short, this sounds to me like a very bad idea. You either have a system that is extremely large and heavy, or a system that is more likely to do you in than the enemy.

      --
      "-1 Troll" is the apparently the same as "-1 I disagree with you."
    8. Re:Really... by Anonymous Coward · · Score: 0

      How about the equivalent of a nuclear shaped charge to produce a short lived beam, or spray of antimatter and neutrons to boost a fusion reaction?

    9. Re:Really... by Jacer · · Score: 3, Insightful

      If you can have a weapon more powerful than a nuke, without the fallout, they'll be more prone to use them.

      --
      --fetch daddy's blue fright wig, i must be handsome when i release my rage
    10. Re:Really... by Psychedelic · · Score: 1

      You're either with us or against us!

    11. Re:Really... by Vash_066 · · Score: 1

      They just found out the Alien fleet will be here in a few decades...
      And having based their Invasion Defense plans from ID4 I can see why the Air Force would want to sink money into this.

    12. Re:Really... by Anonymous Coward · · Score: 0

      Or, we could just leave Iran THE F*CK ALONE!

    13. Re:Really... by Jugalator · · Score: 1

      is our biggest national security threat really that nuclear bombs aren't powerful enough?

      I'm not american so I won't comment on that, but maybe this is researched against major threats but where you still don't want to ruin the ground people can live on for decades after.

      --
      Beware: In C++, your friends can see your privates!
    14. Re:Really... by Hoi+Polloi · · Score: 1

      Overkill, it is the American way. Why do people in this country feel the need to drive a Hummer to carry a few frigg'n bags of groceries?

      We haven't faced a country in decades that could put up a fight never mind pose a real threat. We've got goddamn stealth planes facing air defenses that consist of some scared kid firing a gun wildly in the air.

      The military needs to make the rubble bounce a few more times I guess.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    15. Re:Really... by ViolentGreen · · Score: 4, Funny

      But storage is EXTREMELY tricky. If the antimatter ever contacts the edges of its container, boom.

      Simple solution: store the anti-matter in an anti-matter container. Duh.

      --
      Not everything is analogous to cars. Car analogies rarely work.
    16. Re:Really... by carpe_noctem · · Score: 4, Insightful

      This isn't the thing that's kept us from using nuclear weapons in the past. The thing that has is mutually assured destruction (or MAD, if you will).

      Nuclear weapons were successful in ending the second world war because we were the only country that had them at the time. We couldn't use them in any cold war conflicts because our enemies could use them on us.

      Likewise, the development of anti-matter weapons is useless too, because even if we develop the technology to use them, long-range nuclear weapons from our enemies can still be used against us.

      Creating more powerful weapons in an arms race is kind of like seeing who can count to the biggest number faster... I doubt we'll ever reach a largest number, and eventually both people will shout out "infinity plus one!".

      --
      "Quoting famous computer scientists out of context is the root of all evil (or at least most of it) in programming." - K
    17. Re:Really... by Anonymous Coward · · Score: 2, Insightful

      Ok, that's good for Iran, but what if you want to destroy Canada?

    18. Re:Really... by Anonymous Coward · · Score: 0
      Well, if we had a bomb big enough to take out all of afganastan, we might have hit osama.

      On the other hand, Bush would have probably shot it at iraq instead, and bin laden would still be out there.

    19. Re:Really... by squiggleslash · · Score: 1

      ...but the shockwave would be tremendous, wouldn't it?

      --
      You are not alone. This is not normal. None of this is normal.
    20. Re:Really... by Aroma+7herapy · · Score: 1

      400 Kilotons of TNT should be enough for everyone.

    21. Re:Really... by Anonymous Coward · · Score: 0

      Why? So they can make us glow? No thanks...

    22. Re:Really... by Feanturi · · Score: 1

      The attraction is not the improved amount of power, but rather the 'cleanliness' with which such weapons could be deployed. Nobody sane wants to detonate a nuclear device because of the long-term consequences, not only to the enemy but to themselves as well. There are shitloads of nukes in the world, but will any of them ever be fired? Now imagine you have clean anti-matter bombs. Just as destructive, or more, at the time of blast, and the area is available for occupation almost immediately.

      That makes this stuff scary as hell. But using anti-matter makes something like Project Orion much less scary. I mean someone actually thought at one time that it would be a good idea to leave a trail of exploded nuclear bombs behind a travelling ship, whoah...

    23. Re:Really... by Anonymous Coward · · Score: 0

      the article says most of the energy would be released as gamma rays. the reason a regular nuke creates a shock wave is it releases most of its energy as light, which superheats the air around it.

      i dont think gamma would be absorbed as readily, thus spreading further before releasing their energy.

      basically they want a 'clean' nuke that will kill everything but leave physical (non-living) structures intact. a blast/shock wave doesn't fit with this scenario.

    24. Re:Really... by holderofthering · · Score: 1

      If your asking this question, you obviously shouldn't be on /.

    25. Re:Really... by Anonymous Coward · · Score: 0

      I think one of the advantages of a bomb of this type is not necessarily the bigger "boom" but what it doesn't do - namely radioactive fallout.

      Just imagine the worldwide consequences of using a nuke,.... but use something that doesn't radiate the land? I believe the world would be a lot more forgiving in the use of such a beast.

    26. Re:Really... by pchan- · · Score: 1

      Why would we need anything MORE powerful?

      okay, here's one reason: an antimatter weapon is MUCH MUCH smaller and far simpler than a nuclear weapon. a device stuffed into a container the size of a AA battery could contain a magnetic suspension chamber and a gram of antimatter. easy to plant by a spy or saboteur, very difficult to find, and when the power runs out on the containment field you have an explosion with 0% chance of detonator failure that could level a nice chunk of a city. this is the soviet "suitcase bomb", in the size of a pen, and it emitting no radiation while inactive.

      sounds pretty practical to me.

    27. Re:Really... by km790816 · · Score: 1

      Be careful of government sponsored text books.

      Japan's navy was destroyed and they were surrounded by allies: China, Russia, US.

      We didn't drop the bomb to end WWII. We dropped the bomb to start the Cold War.

      Hey USSR: We have the bomb and we're not afraid to use it.

    28. Re:Really... by killjoe · · Score: 1

      Amazing isn't it? The only reason we haven't used nukes yet is because it could bite us back. Once these new weapons are created you can bet your ass we will use them.

      Too bad we can't seem to find other reasons for not using weapons of mass destruction.

      --
      evil is as evil does
    29. Re:Really... by mOoZik · · Score: 1

      Amen, brotha. We didn't need to kill 250,000 civilians to end a war when Japan's navy was nonexistent. It was merely an experiment and a show of force, which paved the way for the Cold War. Don't for a second justify the killing of 1/4 million people to "save the lives of thousands of American soldiers."

    30. Re:Really... by Kethinov · · Score: 1
      But storage is EXTREMELY tricky. If the antimatter ever contacts the edges of its container, boom.
      Just lock down the magnetic constrictors, duh. Don't you watch any Star Trek?
      --
      You're right, I wouldn't steal a car. But if it were possible, I sure as hell would download one!
    31. Re:Really... by Anonymous Coward · · Score: 0

      isn't infinity plus one still infinity? I'm lacking on my math skills here...

    32. Re:Really... by magefile · · Score: 1

      It's turtles all the way down (apologies to Feynman and Pratchett).

    33. Re:Really... by Anonymous Coward · · Score: 0

      So what about your feelings on the japanese bioweapons program, and their plan to use them on the west coast? Or the submarine aircraft carrier. Or the gift of uranium from the germans that never quite made it?

      Please. We used our superweapon before they used one of theirs, and before they built another.

      Your touchy feely revision of history is an embarisment to everyone who had a hand in your education.

    34. Re:Really... by km790816 · · Score: 1

      Quick! We should bomb Canada before they get us!

      Okay, that's a little extreme, but still...

      "They might get us first" is one of the worst justifications for military action--just slightly better than "we must bomb the country to bring peace to the region".

    35. Re:Really... by Anonymous Coward · · Score: 1, Insightful

      On the other hand, everyone in Iran WILL die. I don't find the idea of making WMDs better attractive at all.

    36. Re:Really... by Anonymous Coward · · Score: 0

      Are you retarded? You equate attacking an ally with whom we've good relations, and the worlds longest undefended boarder to the Pacific theater of the world war, when our superweapon was deployed only a short time before the Japanese were scheduled to deploy theirs. That's equivalent to you in any way?

      It's fine to think war, or killing are immoral. But view killing someone who is actively trying to kill another as anything other than selfdefese based entirely on the success of one of the individuals is patently ludicrious. And no society on earth has ever taken that view. Feel free to start your own, I'm curious to see if you'll have any takers.

    37. Re:Really... by DigiShaman · · Score: 1

      I doubt it. Even if we used such a weapon, there would be major political hell to pay...and even return-fire from another party using a standard nuclear bomb. Regardless of the technology, if it causes mass death, expect retaliation.

      In short, it's still MAD (Mutually Assured Destruction) at the helm.

      --
      Life is not for the lazy.
    38. Re:Really... by Art+Tatum · · Score: 1

      Just stay away from the farm subsidies. The come down is a bitch...

    39. Re:Really... by Combuchan · · Score: 1

      I thought the whole point of it all was to not end up at the point where we're all trying to kill each other in the first place?

      --
      "[T]he single essential element on which all discoveries will be dependent is human freedom." -- Barry Goldwater
    40. Re:Really... by Anonymous Coward · · Score: 0

      Why do people in this country feel the need to drive a Hummer to carry a few frigg'n bags of groceries?

      Why are you a freedom hating commie mutant terrorist?
      Please remain where you are, citizen. The relevant authorities are on their way.

    41. Re:Really... by Anonymous Coward · · Score: 0

      I don't really think people during the Cold War were as scared of the bad nasty fallout for 50,000 years as being annihilated instantly in an exchange of nuclear weapons. In that sense, whether or not the weapon leaves radioactive contamination behind, it's still going to have all the same negative properties of other WMD.

    42. Re:Really... by Minna+Kirai · · Score: 1

      AC: Please. We used our superweapon before they used one of theirs, and before they built another.

      Haha! Japan might've built a "superweapon"? They never even achieved semi-automatic rifles. The M-1 Garand was a superweapon as far as they were concerned.

    43. Re:Really... by Plural+of+Mongoose · · Score: 1

      Exactly. Nobody will ever need more than 640 Kilotons...

      --
      The last fucking thing you want is my undivided attention...
    44. Re:Really... by carpe_noctem · · Score: 1

      Your touchy feely revision of history is an embarisment to everyone who had a hand in your education.

      At least I passed spelling, dumbass.... =P

      I can't believe everyone picked me apart on whether or not we actually needed to use the atomic bomb to end WWII. I personally don't believe we needed to (*gasp*), but simply included as a point to how we were able to use a weapon of mass destruction without mutually assured consequences. Whether or not we needed to use the bomb is completely aside the point of the original argument.

      Sheesh, post back again when you graduate high school.

      --
      "Quoting famous computer scientists out of context is the root of all evil (or at least most of it) in programming." - K
    45. Re:Really... by jasmusic · · Score: 1

      You're forgetting a big principle here. To guarantee a country's submission, you need to occupy it with ground troops, because the citizens and the government exist on land; not in the water, not in the sky, and not in outer space. The Japanese weren't likely to submit, and a land campaign would have been brutal. Furthermore, as Soviet domination on Eastern Europe was strengthening, we needed something to subtly convey to them that further movement westward (as was in their longtime plans anyway) was a Bad Idea. But yes, I have no idea why we didn't just outright say, "We have an atomic weapon," aside of it possibly offering the Japanese time to pull a Saddam Hussein and offer last-minute, dragging negotiations that have little meaning.

    46. Re:Really... by Anonymous Coward · · Score: 0

      Those who fail spelling aren't doomed to repeate it. They're sent off to be doctors or engineers.

    47. Re:Really... by Anonymous Coward · · Score: 0

      They had weaponized biological agents. That was done, as were delivery systems. They were also going to build a radiological bomb to use on the west coast too, since a real atomic weapon would take too long to build. They also had jet fighters, and had made significant improvements to the Nazi designs. So while their guns were pretty crappy overall, that's not an accurate measurement of their technical capabilities. Rather a statement about the value they placed on esprit de corps.

    48. Re:Really... by Minna+Kirai · · Score: 1

      going to build a radiological bomb to use on the west coast too

      Yeah, have fun paddling from Okinawa to Los Angelos.

      They also had jet fighters, and had made significant improvements to the Nazi designs.

      No they weren't. Japan only had cheap me-262 knockoffs, whose only "improvement" was foldable wings... which was required to fit them into houses to hide from bombers, because of the Americans' total air domination.

      Japan at that time didn't even have fuel oil. So even if they'd had good weapons (and they didn't), there'd be no way to even idle the engines.

    49. Re:Really... by Minna+Kirai · · Score: 1

      To guarantee a country's submission, you need to occupy it

      Meaningless. Japan was no longer a threat, regardless of if they submitted. There are no oil wells or iron mines in Japan, and they had no stockpiles of fuel or steel. Without them, you cannot become a threat to the rest of the world.

      If the Allies had just pulled back and ignored Japan, the only threat they'd present would be wooden sailing ships.

      The Japanese weren't likely to submit,

      False. They had already repeatedly asked to surrender. Ever since Germany gave up, Japan knew it's position was hopeless. The idea that "Japan refused to surrender" is a myth created by the USA to justify the Hiroshima strike.

      and a land campaign would have been brutal.

      Possibly, but it wouldn't have involved any USA troops. Stalin had offered to supply 100% of the invasion's ground forces.

      we needed something to subtly convey to them that further movement westward

      Yes, exactly. That's what is meant by "start the Cold War"

    50. Re:Really... by jasmusic · · Score: 1

      Possibly, but it wouldn't have involved any USA troops. Stalin had offered to supply 100% of the invasion's ground forces.

      That would have been about as smart as Eisenhower having allowed the Soviets to reach Berlin first. Just what the world needs: Communist Japan. And it would have come to that.

      If the Allies had just pulled back and ignored Japan, the only threat they'd present would be wooden sailing ships.

      I don't even know what to say to that. Have you ever in your life studied military history? Or human behavior?

    51. Re:Really... by Minna+Kirai · · Score: 1

      Communist Japan. And it would have come to that.

      Absolutely. That's what we've been saying all along: the atomic bombings of Japan were really blows against the USSR, not Japan.

      The morality of killing people from one weak nation to scare off another, stronger nation...

      I don't even know what to say to that. Have you ever in your life studied military history?

      Yes. That's why the Pentagon hired me.

      My claim that Japan, on the day before the Hiroshima strike, posed no material threat to any Ally is absolutely true. Had Japan been left alone at that point, they would've eventually been easily conquered by absolutely anyone who wanted the territory.

    52. Re:Really... by jasmusic · · Score: 1

      The morality of killing people from one weak nation to scare off another, stronger nation...

      In a world consumed by fear, pragmatism wins over morality every time.

      My claim that Japan, on the day before the Hiroshima strike, posed no material threat to any Ally is absolutely true. Had Japan been left alone at that point, they would've eventually been easily conquered by absolutely anyone who wanted the territory.

      I wish you would have said that in the first place. Otherwise you'd imply that the Pacific would come to a peaceful standstill, and I just couldn't accept that with a straight face.

    53. Re:Really... by Minna+Kirai · · Score: 1

      I wish you would have said that in the first place.

      Well, how many times must I link you back to the original post before you read it?
      "We dropped the bomb to start the Cold War."

    54. Re:Really... by jasmusic · · Score: 1

      Forget it.

    55. Re:Really... by Anonymous Coward · · Score: 0

      You apparently don't realize that antimatter weapons could be scaled down extremely easily. Nukes can't be. Nukes leave behind radioactive fallout. Antimatter weapons wouldn't.

      Imagine an antimatter weapon the size of a pop can, fired from a railgun at extremely high speed and with great precision. Undetectable on radar, and yet with the power of a small nuclear weapon.

      Antimatter weapons would have a wider range of uses than nukes and would be much less messy (resulting in fewer civilian casualties). The drawback would of course be cost. Nevertheless they would be able to perform tasks that nukes simply wouldn't.

  13. Units of Measurement by CraigoFL · · Score: 0, Redundant
    Such weapons would easy eclipse nuclear weapons in power, e.g., 1 gram of antimatter would equal 23 space shuttle fuel tanks of energy

    How many Libraries of Congress would that power?

    Seriously, why use such a esoteric unit of measurement, especially when you're going to compare it to nuclear weapons? Would describing it in terms of megatons be too much to ask?

    1. Re:Units of Measurement by Anonymous Coward · · Score: 0

      Come on. There was a full three minutes between your post and the first person who posted the same thing. You really should do a refresh before posting.

  14. Wrong department by phaetonic · · Score: 1

    Should Starfleet be the one researching this? We all know they'll be using it in the future for their spacecrafts.

    1. Re:Wrong department by ackthpt · · Score: 2, Insightful
      Should Starfleet be the one researching this? We all know they'll be using it in the future for their spacecrafts.

      Look for a patent infringement suit.

      A bigger bomb isn't the answer. Guerilla warefare has shown you have to fight door-to-door. Daisy-cutters, as impressive as they were and 'Shock and awe' seem, upon reflection, to be greatly overrated in their effectiveness. People fear nuclear weapons, not just because they can kill so many, but because they can poison the land for years to come.

      --

      A feeling of having made the same mistake before: Deja Foobar
    2. Re:Wrong department by Ian+Wolf · · Score: 1

      Not to mention we will never use them.

      (I hope)

      --
      "The words of the prophets are written on the Slashdot walls."
  15. How to detonate it? by FTL · · Score: 3, Insightful
    One of the potential problems with antimatter is how to use it. If one just removes it from its isolation container, it may just glow, spit and fizzle for an extended period of time, rather than explode properly. As the first particles of matter comes in contact with it, that matter (and the corresponding amount of anti-matter) will annihilate, causing a blast that may separate the two objects for a while. So to detonate properly one might need some very fancy geometries or implosion schemes that make an atomic bomb look like child's play.

    Alternatively antimatter may blow up just fine without any assistance. It's all theory just now. We'll have to drop a gram of it to be sure.

    --
    Slashdot monitor for your Mozilla sidebar or Active Desktop.
    1. Re:How to detonate it? by Anonymous Coward · · Score: 0

      mcconnell air force base

      they know

    2. Re:How to detonate it? by chronophasiac · · Score: 1

      How would the blast seperate the antimatter from the matter when the antimatter is *surrounded* by matter? Antimatter that is merely exposed to air will prompty annihilate; the blast can only push the antimatter into more air. If the antimatter is magnetically suspended in a hard vacuum and the magnetic confinement fails, the antimatter prompty annihilates against the container walls, and if any surviving antimatter is thrown by the blast it gets thrown into the other parts of the container.

      I really doubt making antimatter go boom will present a problem.

      --

      The future doesn't have to be like the past -- http://www.si
    3. Re:How to detonate it? by imkonen · · Score: 3, Interesting

      You don't need a matched piece of matter to detonate antimatter. Wherever that antimatter goes it will find matter with which to detonate unless you take immense precautions to keep it isolated (which is what much of the article is about). Especially with positrons: What you percieve as mechanical resistance...two solid objects that push against each other rather than just mixing like a gas...is electron-electron repulsion between the atoms on the outsides of those objects. Electrons orbiting an iron atom are just as likely to annihilate with positrons orbiting an anti-iron nucleus, an anti-proton nucleus, or nothing at all.

    4. Re:How to detonate it? by Anonymous Coward · · Score: 1, Insightful
      > How would the blast seperate the antimatter from the matter when the antimatter is *surrounded* by matter? Antimatter that is merely exposed to air will prompty annihilate; the blast can only push the antimatter into more air.

      The Victorians already knew this to be false. Their problem was trying to keep propellers on their steam ships in contact with water. If the propeller was too powerful, it would push the water away from it and a bubble of vacuum would open up. It's called cavitation. If Victorian steam engines are powerful enough to create a vacuum around a propeller in water, I'd imagine that a chunk of antimatter would have no problems at all keeping air away from itself.

    5. Re:How to detonate it? by Anonymous Coward · · Score: 0

      Mmm..wouldn't the question be "How to prevent it from detonating? (or reacting) Isolating the anti-matter is going to be difficult, let alone to transport it safely.

    6. Re:How to detonate it? by Anonymous Coward · · Score: 0

      You're not a physicist I'm guessing.

      Antimatter has no problem anhiliating with matter, hence the fact that the small amount of antimatter that was created in the Big Bang no longer exists.

      Cavitation is caused by repulsion of electron shells. Positron and electron shells attract. Boom.

    7. Re:How to detonate it? by ultranova · · Score: 1

      One of the potential problems with antimatter is how to use it. If one just removes it from its isolation container, it may just glow, spit and fizzle for an extended period of time, rather than explode properly.

      Is that actually a bad thing in a bomb ? Remember that the glow here is still much hotter than Suns surface, propably hotter than it's core. If, for example, you would make this into a thin disk with a hole in the middle (or a donut), you could send normal matter into the edges of that hole, causing the disk to spread over a large area, spreading out the destruction. Sure, it will decrease the power of the explosion at ground zero - but then again, does it really matter if the explosive power is enough to annihilate everything at said point 10 or 100 times ? Making the area of total destruction larger - now that's a usefull feature in a weapon of mass destruction.

      In any case, a bigger problem might be that it would take 2.5 million years to product 250 grams of antimatter (the equivalent to a 10 MT hydrogen bomb), assuming all of Earths energy production would be channeled towards this task (says this page).

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    8. Re:How to detonate it? by Anonymous Coward · · Score: 0

      The cavitation bubbles aren't really vacuum, they're water vapor at a low pressure.

      Anyway, I don't really get the analogy. There seems little similarity between a rotating propeller and an anti-matter specimen being explosively released. In the latter case there would probably be a blast wave caused by sudden heating of matter surrounding the bomb. As the wave propogated there would be pressure troughs, but I expect the pressure at the center of the bomb would initially increase, providing more matter for the annihilation.

    9. Re:How to detonate it? by coyote-san · · Score: 1

      I might have misunderstood your last sentence - are you saying electrons can annihilate with anti-protons etc?

      If so you're wrong - particles can only annihilate with their antimatter counterparts. Other interactions follow the usual rules.

      --
      For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
    10. Re:How to detonate it? by cjameshuff · · Score: 1

      How about storing (cold) antiprotons in a normal matter container? At short distances, the antiprotons would be repelled by the electrons in the orbitals of the neutral atoms. Maybe a cold antiproton-hydrogen mix would be stable for significant periods. To set it off, just jump an arc through it or something...ionize the hydrogen, freeing the protons to interact directly with the antiprotons. Result: lots of ionizing radiation, and more proton-antiproton annihilation.

    11. Re:How to detonate it? by Anonymous Coward · · Score: 0

      Totally different principles. First, cavitation (aka flow induced boiling). The propellor doesn't push the water away: the lift creates a region in front of the propellor where the pressure is vapour pressure which causes the liquid water to turn into a gas.

      Second, antimatter. From a pressure standpoint (independant of any electrical attraction), you can think of the hunk of antimatter as being a region of 0 pressure. It is a perfect leak: if an air molecule enters that region, it does not bounce back or in any way create pressure. It simply ceases to be part of the system. The radiation released may add energy to nearby molecules but I believe it is relatively nondirectional. In the net, the implosion may actually be accelerated by an expanding toroid of higher pressure. I might have to try to model this...

    12. Re:How to detonate it? by imkonen · · Score: 1
      " I might have misunderstood your last sentence"

      You did, but I see that I phrased it poorly. What I was trying to say was antimatter iron for example can annihilate with aluminum, or water, or air, or any stable form of matter...because the positrons around the anti-iron will interact with the electrons around matter atoms. The article itself is talking about storing positrons...I would bet because they are the "easiest" to make (here I admit I'm not a particle physist, but I think the lightest anti-particles are the easiest to create in an accelerator, so postitrons are more prevalent than anti-protons and anti-neutrons.)

      The next responder made an interesting point about the electrostatic repulsion between an antiproton and an electron preventing contact between the antiproton and the protons of the nuclei. I suspect antiprotons are still extremely short-lived exposed in the universe, but now I'm a little out of my league as to precisely how and how fast they find their way close enough to a proton to annihilate.

    13. Re:How to detonate it? by Bendebecker · · Score: 1

      But won't the subsequent production of energy push matter away from it hence slowing the reaction? Like how the supermassive blackholes at the center of the galaxy are supposed to work, as they absorbed matter their energy output increased pushing other nearby matter farther away.

      --
      There's a growing sense that even if The Future comes,
      most of us won't be able to afford it.
      -- Lemmy
    14. Re:How to detonate it? by jasoneyre · · Score: 1

      It's all theory just now. We'll have to drop a gram of it to be sure.

      D00d, advocating drugs is not good!

      --
      THSsMCHshrtrTHN160chrs -- And I don't even like to SMS!
  16. Darn! by ziani · · Score: 1

    Now I have to trash my photon torpedo grant application.

  17. Antimanner proliferation by robotoil · · Score: 0, Troll

    Just so long as North Korea does not get it!

    1. Re:Antimanner proliferation by Anonymous Coward · · Score: 0

      Just so long as North Korea does not get it!

      Or Bush for that matter, so vote Kerry!

      This is meant as a joke. Well. No it isn't really. I mean.. argh. my head!

  18. (-_-*) by Shadow+of+Eternity · · Score: 1, Funny

    Of course the moment antimatter comes in contact with matter you get a violent reaction, so firing antimatter without a ridiculous amount of shielding which itself would be matter, and thus set off the antimatter, would result it you dying in a spectacular display of one of the best PEBKAC's ever to grace military science. Of course this should be expected from the branch of USM that actually has their top pilots landing with the parking brakes on... "Landing sequence checklist: 1.Engage primary reasoning 2.Load common sense 3.Boot up Situational Awareness drivers 4.Begin primary thinking process"

    --
    A bullet may have your name on it but splash damage is addressed "To whom it may concern."
    1. Re:(-_-*) by pjt33 · · Score: 1

      You missed "0. Land", as well as "5. ???" and "6. Profit!"

    2. Re:(-_-*) by Anonymous Coward · · Score: 0

      Two points:
      1) They store antimatter in a magnetic bottle (so that it does not come in contact with matter before you want to use it).
      2) The reason that antimatter is measured in space shuttle fuel tanks is that, in the past, NASA has done the most work in this area (antimatter not weapons).

    3. Re:(-_-*) by MoonBuggy · · Score: 1

      Wasn't there an article yesterday about space-based weapons? There's not nearly so much matter up there, and if they're really thinking ahead it could be intended for combat which is outside the atmosphere, since maintaining an antimatter containment field (and I can't believe I just said 'antimatter containment field in a serious sentence) through reentry is what is generally known as fucking insane.

    4. Re:(-_-*) by Shadow+of+Eternity · · Score: 0

      Like i said, these are the guys that try to land with the parking brake on. All joking aside i seriously hope we DONT get antimatter weapons, because just imagine an anti-gram of the stuff getting into a suicide bombers hands, just ONE would prolly be enough to wipe DC right off the face of the earth. interesting new brand of terrorism >.

      --
      A bullet may have your name on it but splash damage is addressed "To whom it may concern."
  19. Schweet! by idontgno · · Score: 2, Insightful
    F-22 Raptors with photon torpedoes on multiple-ejector racks.

    How many megatons yield per aircraft?

    OK, now I'm scared.

    --
    Welcome to the Panopticon. Used to be a prison, now it's your home.
  20. Quick, hide Lazarus! by Genjurosan · · Score: 1, Funny

    If he meets his new anti-Lazarus, then the universe will explode!

  21. 1 gram of anti matter? by ackthpt · · Score: 5, Funny

    Shouldn't that be -1 gram of anti matter?

    --

    A feeling of having made the same mistake before: Deja Foobar
    1. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      NO

    2. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      maybe -1 gram of matter. but not -1 gram of anti matter.

    3. Re:1 gram of anti matter? by pipacs · · Score: 1

      -1 gram of matter?

    4. Re:1 gram of anti matter? by harrkev · · Score: 1, Informative

      Anit-matter does not produce anti-gravity. Experiments have confirmed this.

      --
      "-1 Troll" is the apparently the same as "-1 I disagree with you."
    5. Re:1 gram of anti matter? by Jeff+DeMaagd · · Score: 1

      The thing is, I'm pretty sure that antimatter has a positive mass. Electrons have mass, and protons have mass. All antimatter really is is the charge reversed between the two, making them positrons and erm.. negatrons?

    6. Re:1 gram of anti matter? by YetAnotherAnonymousC · · Score: 1

      You jest, but it is interesting that we actually know very little about how large amounts of antimatter (at/beyond the "anti-atom" and "anti-molecule" stage - assuming the rules are the same even for that) would behave with regard to fundamental forces like gravity. Sure, we guess it'd be the same based on varying degrees of theory, but we don't really know.

    7. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      What does gravity have to do with mass? You are thinking of weight (eg pounds). Mass has nothing to do with gravity.

    8. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      > Electrons have mass, and protons have mass. All antimatter really is is the charge reversed between the two, making them positrons and erm.. negatrons?

      Prosaically enough, "antiprotons".

    9. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      F = m1*m2*G/r^2

    10. Re:1 gram of anti matter? by ackthpt · · Score: 1
      The thing is, I'm pretty sure that antimatter has a positive mass. Electrons have mass, and protons have mass. All antimatter really is is the charge reversed between the two, making them positrons and erm.. negatrons?

      Near as I can figure, when you bring matter and anti matter together you wind up with a pile of neutrons after lots of energy has been release. Probably wind up with some scared atoms and molecules, too, as not all pairings will be neat ant tidy.

      Back when the first nuclear test was performed, the was half a guess that the atmosphere might ignite in a chain reaction. They went ahead with the experiment anyway. Not all the mad scientists are in movies.

      --

      A feeling of having made the same mistake before: Deja Foobar
    11. Re:1 gram of anti matter? by NichG · · Score: 3, Informative

      No neutrons. Matter and antimatter are opposite in all of the conserved (well, jointly conserved in some cases) quantities except mass-energy and spin, so all that you're left with its a pair of photons that have the net energy, momentum, and angular momentum of the original particles. To get neutrons you'd need to have a net baryon number, which is positive for 'normal' matter and negative for antimatter. Neutrons have positive baryon number and have an antiparticle version (antineutrons).

      You could of course get more complicated results, but you'd need to put in extra energy to start with so that you can create other particle/antiparticle pairs (since all the numbers have to balance out in the end), and since we're usually talking about something like electron-positron collisions, there's not much out there with lower mass-energy to be formed.

      The perfect annihilation is why anything involving antimatter is so attractive from an energetic point of view: its a 100% efficient (since we're talking about individual annihilations, not an ensemble of them with someone trying to extract energy from the whole mess, we're not violating any thermodynamic laws) process that converts one form of energy (that is, the mass-energy of the particle-antiparticle pair) to another (the resultant photons). And it has no byproducts.

      Of course, you could never use it as an energy 'generation' scheme since there's not really any antimatter out there to go and harvest thanks to that weird breaking of the symmetry between matter and antimatter. There are processes that do not have that symmetry (i.e. CP violation, ...), but to the best of my recollection they've been shown to be too weak to produce the current state of the universe (i.e. the particular ratios of matter/energy we have). At best it'd be an extremely efficient form of storage (a major leap from those hydrogen fuel-cells).

      As a consequence, it's also the classic bomb-like weapon: 'pack a lot of metastable or unstable energy into something and drop it on your target'.

      However, given the difficulty involved in making macroscopic quantities of this stuff, we could probably make a couple of those carbon nanotube space ladders with the budget to build a single significantly-sized bomb.

    12. Re:1 gram of anti matter? by RyuuzakiTetsuya · · Score: 3, Funny

      quick. someone call alton brown. let's find out if we can use this stuff for antipasto.

      --
      Non impediti ratione cogitationus.
    13. Re:1 gram of anti matter? by idontgno · · Score: 3, Funny

      Where's my +1 anti-overrated moderation?

      --
      Welcome to the Panopticon. Used to be a prison, now it's your home.
    14. Re:1 gram of anti matter? by Kethinov · · Score: 1
      Anit-matter does not produce anti-gravity. Experiments have confirmed this.
      How about anti-time? Was Data correct in TNG 7x25/26?
      --
      You're right, I wouldn't steal a car. But if it were possible, I sure as hell would download one!
    15. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      Maybe you don't but WE do.

      First of all antimatter would have positive mass, because a negative mass particle would lead to run away solutions with infinite energy.

      Secondly a theoretical negative mass particle would fall down just like everything else. You can do the calculation with Newtonian gravity or GR and you will get the same result. Note that massless particles fall down too.

      Sure we haven't experimentally determined this, but there is no question about it.

    16. Re:1 gram of anti matter? by identity0 · · Score: 4, Funny

      Yes, I read all about it on AntiSlashdot: News for Nerds. Stuff that AntiMatters.

      Unfortunately some Slashdotters got onto AntiSlashdot, and the resulting reaction with the thoughtful, intelligent and polite women there caused an explosive reaction which destroyed the AntiSlashdot server. A shame, really, since AntiSlashdottings gave the affected server a tremendous amount of free bandwidth, their site design was colorful yet tasteful, and I always loved Joan Dogz's thoughtful articles.

      Oh well, I guess I'm stuck with regular 'ol Slashdot now. It's just as good, right?

    17. Re:1 gram of anti matter? by imsabbel · · Score: 1

      errr. We know exacly how they react to fundamental forces like gravity, electromagnetic, strong and weak force.
      Or do you think we could keep them in storage rings (we DO keep them. only a few million positrons at once, but we do) without knowing how they react to the containment field and external forces?

      Antimatter having positiv mass is a fundamental property that has been proven and was never really doubted.

      --
      HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
    18. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      Didn't Negatron die while battling Optimus Prime?

      Man, I miss Transformers...

    19. Re:1 gram of anti matter? by YetAnotherAnonymousC · · Score: 1

      I don't know why you assume I am saying antimatter has negative mass.
      And yes, we know oodles about the behavior of fundamental antiparticles with several fundamental forces (em, sure, gravity, probably [although we still have many questions about gravity in general - I personally subscribe to general relativity as is, but we have some cosmological data to reconcile with that]. Strong force, check. Weak force, I call BS - we don't have enough experimental proof at all here). Does that mean that the properties and construction of larger scale antimatter constructs exist and behave how we expect? Well, probably, but do we have any proof? Not really. (remember, consistent theory is a very good predictor, but the proof in the pudding is experiemental results) I think someone has gotten together anti-quarks into anti-protons once or twice, IIRC, but we're not even to the point of having, say simple anti-hydrogen gas (or even anti-hydrogen plasma, I think). Are the rules for more complex atoms and molecules what we expect? For consistency's sake with solid math like Schrodenger's, we think so, but we have no proof. None. And certainly we don't have proof of the radioactive decay of very large anti-atom nuclei and the strong force & weak force implications. I'm not saying that I think that we will find something strange here. But I AM saying that we DON'T know. We still need experimental proof. And that is what is interesting. So let's not get ahead of ourselves and close the book.

    20. Re:1 gram of anti matter? by Anonymous Coward · · Score: 0

      The thing is, I'm pretty sure that antimatter has a positive mass.

      Nothing has negative mass. Negative mass means you screwed something up.

      negatrons?

      controns. (well, anti-protons.)

    21. Re:1 gram of anti matter? by HorsePunchKid · · Score: 1

      There is a conceptual difference between gravitational and inertial mass. It is a curious coincidence that we don't seem to be able to detect a physical difference. More information on this is just a Google away. Also look for the Principle of Equivalence.

      --
      Steven N. Severinghaus
    22. Re:1 gram of anti matter? by adavies42 · · Score: 1

      Exotic matter does. Don't you know anything about wormhole physics?

      --
      Media that can be recorded and distributed can be recorded and distributed.
      -kfg
  22. Since we can never stop fighting with each other by Anonymous Coward · · Score: 1, Insightful

    and war is part of the human psyche, we may as well develop weapons that just kill cheap humans and don't fuck up the planet or start nuclear winters.

  23. [little john] WHAT? [/little john] by kippy · · Score: 4, Interesting

    This is insane. A gram of antimatter would cost almost more money than exists on earth if I recall. You thought nukes were expensive? wait till you see the military budget if this gets taken seriously.

    I'd love to see their containment schemes so that the anti matter doesn't bump the bomb casing wall and annihilate in storage or in transit.

    On a funny note this nut whom I've met in person, claims that comets are made of pure antimatter. Riiiight. That should bring production costs down :)

  24. It's no surprise.... by thewiz · · Score: 1

    That the military is looking for smaller and more powerful weapons. Of course, this is still a long way from happening. As the article states, they are still having problems with producing antimatter and storing it.

    My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?

    --
    If "disco" means "I learn" in Latin, does "discothèque" mean "I learn technology"?
    1. Re:It's no surprise.... by Anonymous Coward · · Score: 0

      Of course we need it! The key to winning the "war on terrorism" is *obviously* the ability to obliterate whole cities in a single shot!

      oh... wait...

    2. Re:It's no surprise.... by KilobyteKnight · · Score: 1
      My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?


      Yes... and the really cool thing is that the assault weapons ban doesn't cover these babies.
      --
      When will Windows be ready for the desktop?
    3. Re:It's no surprise.... by BlueStrat · · Score: 1

      "My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?"

      A weapon is just a tool used a certain way. Besides, it may turn out to be the only practical way to deflect/destroy an object on a collision course with Earth.

      --
      Progressivism (aka US 'Liberalism'): Ideas so good they need a police/surveillance-state to enforce.
    4. Re:It's no surprise.... by srussell · · Score: 1
      My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?

      No, we don't, but there is -- arguably -- a lot of benefit to be had from knowing how the technology works, if only to know what it is going to take for someone else to do it. Even if we don't research it, somebody will, and if we don't know how it works, we won't be able to train James Bond in disarming it.

      Incidentally, this would be quite nice to have, from a military point of view. Sure, it is expensive, but theoretically, once you have the factory, all you need is some solar panels to produce the stuff. You have to mine Uranium, and fissionables are heavy. If you ignore the cost of getting the factory into orbit (which is a stupid thing to ignore), this is great. Create it right in orbit, drop it on your Axis of Evils, whoever they happen to be at the moment. Heck, assuming you can get the plant small enough, it'd be a real treasure -- it doesn't matter if it isn't making much antimatter, because it can be making it all the time, for free.

      Anyway, knowing how to get around with this technology is useful, even if we (hopefully) never actually use it. Security through obscurity is false security.

      There are a lot of caveats in my post; for instance, if you're strategically in orbit, there are all sorts of things you can drop on things that are way less expensive than antimatter. Personally, I think there's a reasonable chance that a good number of the 8,000 larger-than-softball objects in low orbit are ceramic balls with some depleted uranium, a tiny radio, simple microprocessor, and some navigational explosives. The only thing that keeps me from being totally paranoid about it is the Discordian truism: Govornments are the kinds of things which, although they do small things badly, do large things badly, too.

    5. Re:It's no surprise.... by Coffee+Warlord · · Score: 1

      [I]My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?[I]

      Not really, but an energy source like this sure wouldn't suck. Which, granted, I know jack shit about this technology in general, but it seems likely that if you figured out how to build a bomb with the stuff, you could at least have some good ideas how to make a 'fuel' out of it.

    6. Re:It's no surprise.... by CmdrGravy · · Score: 1

      Sure, if you could work out how to get the anti matter without an extremely expensive and energy intensive manufacturing process maybe you could.

  25. 1gm antimatter = 39 kT TNT by wowbagger · · Score: 4, Informative

    units
    1948 units, 71 prefixes, 28 functions

    You have: grams*c^2
    You want: tonnes-tnt
    * 19487.022
    / 5.1316205e-05

    So 1 gram antimatter + 1 gram matter is about 39 kT of TNT. Hiroshima was about 20 kT, Nagasaki was 13 kT, so one gram antimatter would release just a scosh more than both devices.

    So let us use a bit more sensible units than "shuttle fuel tanks".

    However, the costs of manufacturing the antimatter, and the size of the containment system, and the fail-null mode of antimatter vs. the fail-safe mode of a nuke (a nuke may leak, but it will not detonate without everything going just right), would lead me to wonder about the utility of an antimatter weapon.

    1. Re:1gm antimatter = 39 kT TNT by GoofyBoy · · Score: 1

      What is the fail-null mode of antimatter?

      You seem to imply that once it set up, its easy to detonate.

      --
      The surprise isn't how often we make bad choices; the surprise is how seldom they defeat us.
    2. Re:1gm antimatter = 39 kT TNT by Jainith · · Score: 2, Funny
      So 1 gram antimatter + 1 gram matter is about 39 kT of TNT. Hiroshima was about 20 kT, Nagasaki was 13 kT, so one gram antimatter would release just a scosh more than both devices.

      6kT is just a scosh? Thats an interesting defintion of scosh...

    3. Re:1gm antimatter = 39 kT TNT by wowbagger · · Score: 1

      Well, I was going to leave that for CleverNickName to say, but...

      Containment breach - the containment system fails, the antimatter meets matter, BOOM.

    4. Re:1gm antimatter = 39 kT TNT by Speare · · Score: 1
      I think the parent was insinuating that any matter+antimatter contact starts detonation. No explosive components required, unlike a critical mass implosion rig required by a nuclear weapon. I don't know if this is indeed the mechanism, but I think it follows just as you hear on Star Trek: matter+antimatter contact is a Bad Thing.

      If that is indeed the case, then the reasoning goes like this: One must use a containment field that is not matter, in order to keep a ball of antimatter away from all matter. And if the containment field fails (e.g., turn off the energy source), the antimatter touches the matter nearby. By doing nothing, that is, failing to contain the antimatter in a matterless environment, the thing explodes.

      --
      [ .sig file not found ]
    5. Re:1gm antimatter = 39 kT TNT by Shadwhawk · · Score: 1

      By all accounts, it is.
      If antimatter comes into contact with normal matter, they annhilate.
      In other words, antimatter leaking out of its containment device isn't a contamination problem. It could very well be a "Well, should we bother rebuilding the city?" problem.

      With a nuke, everything has to be imploded at precise timings and angles, or the runaway reaction won't occur. If it's off just a little, you'll get a nice local irradiation, but you won't level a city.

    6. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      How would we know if it is easy or not to detonate? Nobody has experience with it.

      The scientists behind the A-bomb were fearful of a cascading chain reaction that would burn the whole atmosphere, but the went on with it anyway.

      What's the difference? Mu.

    7. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      So...can I finally get my earth-shattering kaboom?

    8. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0
      So let us use a bit more sensible units than "shuttle fuel tanks".

      Like "scosh"?

    9. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      You know, it's g (not gm) for grams and t (not T) for tons, and thus kt for kilotons.

    10. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      So that's why Iraq's WMDs were so hard to find. They were made of antimater!

    11. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      So 1 gram antimatter + 1 gram matter is about 39 kT of TNT. Hiroshima was about 20 kT, Nagasaki was 13 kT, so one gram antimatter would release just a scosh more than both devices.

      So let us use a bit more sensible units than "shuttle fuel tanks".


      So how many libraries of congress would that equal?

    12. Re:1gm antimatter = 39 kT TNT by babyrat · · Score: 1

      So let us use a bit more sensible units than "shuttle fuel tanks".

      Kilotonnes of TNT is a more sensible unit??? Common becuase of it's ancestry, but comparing anything that requires 20 kilotonnes of it is hardly sensible!!!

    13. Re:1gm antimatter = 39 kT TNT by SharkJumper · · Score: 1

      6kT is just a scosh? Thats an interesting defintion of scosh...

      It's a metric scosh.

    14. Re:1gm antimatter = 39 kT TNT by Anonymous Coward · · Score: 0

      Actually, Hiroshima was 16kT, and Nagasaki was 21kT.

  26. Thus... by Xierox · · Score: 0, Troll

    ...thus enabling the U.S. to finally complete its goal and take over all of the known world and become the Global Police agent it has worked hard to become these past twenty years.

    --
    Xierox
  27. Another Fed tax transfer program by Ars-Fartsica · · Score: 0, Flamebait
    We already have too many very dangerous world-obliterating weapons...so much so that we are afraid of proliferation to very bad people. We also know that the key to safety in the future will be about killing key individuals, not entire nations.

    Hence this is yet another technique for transferring your tax dollars away from real security projects to the Boeing and TRW country club funds.

    1. Re:Another Fed tax transfer program by Anita+Coney · · Score: 1

      When aliens from a parallel anti-universe invade our planet, you'll be glad our government wasted, er... I mean spent our tax dollars so wisely.

      --
      If someone says he and his monkey have nothing to hide, they almost certainly do.
    2. Re:Another Fed tax transfer program by Ian+Wolf · · Score: 1

      Why? We'll just get someone to write a virus on his powerbook, steal an alien fighter, fly up to the alien mothership and upload it. No bombs necessary.

      --
      "The words of the prophets are written on the Slashdot walls."
    3. Re:Another Fed tax transfer program by Anita+Coney · · Score: 1

      Damn you're good!

      --
      If someone says he and his monkey have nothing to hide, they almost certainly do.
  28. Containment energy and stuff by HermesHuang · · Score: 1

    Antimatter-matter reaction might release vast amounts of energy, but how much energy does it take to create/store/transport/control the antimatter? Last I checked it takes a rather large particle accelerator to make antimatter. It's probably the ultimate in energy density, but it may not be all that efficient (with technology realizable in the near-future, at least).

  29. Some things I don't understand about anti-matter.. by halivar · · Score: 3, Interesting

    - Would you have to store the anti-matter, or create it as you need it? The first seems impossible, unless you has some kind of containment where the anti-matter doesn't actually touch anything. The other requires a massive amount of energy. Is this even plausible?

    - What about the radiation involved? We've measured the rays that result from minor, single-atom collisions, but what happens when the collision is actually big enough to damage something?

    - How do you propel something like this? Magnets? Or am I wrong in assuming anti-matter can't touch anything?

    Anyways, maybe some smarter /.'ers than I can tell me where to find this info (it's hard to filter reliable sources out of Google).

  30. Antimatter weapons? How bad could they be? by LMCBoy · · Score: 1

    "Try to imagine all life as you know it stopping instantaneously, and every molecule in your body exploding at the speed of light."

    Ok, so that's bad. That's Egon-bad.

    --
    Liberal (adj.): Free from bigotry; open to progress; tolerant of others.
  31. Funny the way the article is worded... by Weaselmancer · · Score: 5, Insightful

    The San Francisco Chronicle is reporting that the Air Force is actively pursuing antimatter weapons. Such weapons would easy eclipse nuclear weapons in power, e.g., 1 gram of antimatter would equal 23 space shuttle fuel tanks of energy.

    Are we sure they're pursuing weapons? We are talking about the Air Force, and it's funny how they'd compare the relative energy to a spaceship fuel tank, of all things...

    --
    Weaselmancer
    rediculous.
    1. Re:Funny the way the article is worded... by micromoog · · Score: 1
      Are we sure they're pursuing weapons?

      Does a bear shit in the woods?

    2. Re:Funny the way the article is worded... by Kohath · · Score: 2, Interesting

      Aircraft/spacecraft propulsion seem to be the only application for antimatter that makes any sense.

      The energy/mass ratio makes antimatter a good source of energy to use to overcome gravity.

      As for weaponry, mass is a factor, but not the most important one. Making anti-matter is hard. Making stuff explode is relatively easy.

    3. Re:Funny the way the article is worded... by krbvroc1 · · Score: 2, Insightful
      Are we sure they're pursuing weapons? We are talking about the Air Force, and it's funny how they'd compare the relative energy to a spaceship fuel tank, of all things...
      Keep in mind that the presentation was at a NASA conference. As far as presentations go, remember, know your target audience.
    4. Re:Funny the way the article is worded... by thebatlab · · Score: 1

      Only if there's a rabbit around. You know...to wipe his ass... *ba-dum-ching*

    5. Re:Funny the way the article is worded... by Fnkmaster · · Score: 1
      I agree that it makes slightly more sense than using them for weapons. Weapon applications of anti-matter exist, they just are far from practical right now, and the downsides seem to outweight the benefits. For example, you could make very small tactical field weapons that don't suffer from the extremely negative public associations made with nuclear weapons (to replace weapons like the Davy Crockett man portable nuclear warhead). The problem is that to be useful as an artillery-style weapon, it would need to be fail safe, and extremely reliable. Also, such weapons would be so effective as small ad hoc man-portable terrorist weapons, it would seem that the risks associated with building them would outweigh the benefits to a military arsenal.


      And as for large strategic launch weapons, why bother? 1kg is a LOT of anti-matter to manufacture, and regardless of improvements in technology to create or confine the stuff, you are basically going to have to get all the energy to make them out of something like a dedicated nuclear reactor facility anyway. More sensible and safer to just make a 40 megaton nuke if that's really what you want, yeah it'll be quite a bit bigger and heavier in terms of nuclear reaction mass, but that the reaction mass is not really relevant with respect to an ICBM or nuclear bomb, since it's far less than the mass of the housing, electronics, etc. That's why I mentioned the artillery concept (and because making 1/10th of a gram of antimatter stably confined seems more likely than doing so with 1kg, though still very difficult).


      In any case, all these weapons applications don't really seem to make any sense - even if the production technologies were improved greatly, anti-matter's reaction mass efficiency compared to nuclear seems far more beneficial as a propulsion technology than as a weapons technology, especially given the aversion to using nuclear propulsion as an orbital lift technology due to the risks of explosion in midair (I guess an antimatter drive would blow up quite colossally if it failed, so you'd probably have to do it out over the ocean somewhere, but at least it wouldn't spread nuclear waste over a large part of the planet).

    6. Re:Funny the way the article is worded... by Spetiam · · Score: 1

      I agree, and I suspect that SFGate.com was being a little alarmist/melodramtic, as I'm sure everyone has noticed the media is wont... The electromagnetic bomb possiblity, though, I find much more believable. I mean, if you're going to utterly annihilate the whole countryside, how concerned are you really going to be about fallout? On the other hand, if you're trying to be humane, a electromagnetic pulse weapon makes a lot of sense. Yet again, a fallout-free Bomb would make sense in a geographically tight region, such as the Middle East, where Israel is interested in (a) defending herself and (b) not destroying herself in the process.

      I have to wonder, though, how useful antimatter could possibly be. It seems it's a little too difficult to store, just yet.

    7. Re:Funny the way the article is worded... by BiggerIsBetter · · Score: 1

      One of the better concepts for space travel and heavy lifting was the Prometheus concept. A huge spacecraft that drops nukes out the back and detonates them to push itself along.

      The problem being that nuclear detonations are, um, somewhat hazardous and also politically incorrect. Imagine the same spacecraft design using radiationless antimatter explosions for propulsion.

      --
      Forget thrust, drag, lift and weight. Airplanes fly because of money.
    8. Re:Funny the way the article is worded... by supernova87a · · Score: 1

      I think you misunderstand. Anti-matter is a power source, not a fuel that can physically propel a spacecraft directly. So for example, you couldn't replace the space shuttle fuel tanks with antimatter -- you need the actual thrust of *stuff* going out the back end.

      Anti-matter is good for replacing the weight of batteries, solar panels, fuel cells, etc.

    9. Re:Funny the way the article is worded... by clambake · · Score: 1

      I think the problem with antimatter is that most of the energy is essentially unusable gamma radiation. If you find a way to turn that radiation into thrust, I think there may be a nobel waiting for you.

    10. Re:Funny the way the article is worded... by surprise_audit · · Score: 1

      I think they're blowing smoke. I mean, a (relatively) small bunch of guys with a $20M budget have just lifted a ship to the edge of space on a rocket burning rubber and nitrous oxide. The same ship, twice, in under a week. The Air Force is embarrassed.

    11. Re:Funny the way the article is worded... by Anonymous Coward · · Score: 0

      The way the /. summary is worded, I wasn't sure if this was about the San Francisco Air Force or perchance the Finnish Air Force. However, the former seemed a more likely candidate for research on exotic substances with potentially mind-blowing effects.

  32. question for you by pyro101 · · Score: 1

    Should we work at developing antimatter weapons in the future? Do we need antimatter arms to keep MAD going or should we not open pandora's box and hope nobody else does? Keep in mind that if we don't know what the weapons are like we won't know how to spot them or screen the effectively.

    1. Re:question for you by softspokenrevolution · · Score: 1

      Well, I think at this point we're working on SAD.

  33. Uh oh by secretsquirel · · Score: 0

    So how long till we hear about a gigantic gamma-ray explosion on some small island in the south pacific that gets blamed on a meteor.

  34. Re:The only problem is..... by NReitzel · · Score: 2, Funny
    Not entirely true, we just don't have much. We can make antiprotons and antielectrons, which gives us antihydrogen. Now, if we can scale up our production by something like 20 orders of magnitude...

    Mole problems? Call Avagadro, 602-1023

    --

    Don't take life too seriously; it isn't permanent.

  35. I guess this is it by robogun · · Score: 1, Insightful

    Paraphrasing the article:
    "Oh, they're safer, there'll be no fallout..."
    A couple pounds of antimatter, combined with matter, and there'll be no earth to fall to.
    If they succeed, this is it.
    In 10 billion years, some future race will detect a gamma ray burst from the Milky Way Galaxy...

    1. Re:I guess this is it by jfengel · · Score: 1

      Actually, a couple of pounds is "only" 18 megatons. Earth is safe, thanks to you, Sky Captain.

      I'd think of antimatter not as an energy source but as an energy distribution mechanism. We generate some quantity of it here, then drop it all at once on something we don't like. We couldn't blow up the world with it even if we wanted to, unless we also had enough energy lying around to do it the old-fashioned way. The trick for the military isn't getting your hands on a lot of energy, but applying it exactly where you want it.

      So the advantage, like with a nuclear bomb, is the ability to take a fairly small unit to where you want to go. It's just a lot more convenient to drop a few tons of atom bomb on something rather than a million tons of actual TNT.

      If you could haul just a gram of the stuff around in your pocket and use that as a 19 kiloton "grenade", that would be very useful militarily. More likely it will take hundreds of points of containment unit (massive magnets and the batteries to run them) so you're going to drop it from an airplane, but it's still a lot easier to fit that into airplane than the 38,000 pounds of coventional explosives you'd have otherwise.

      I don't know if we can get any kind of useful efficiency out of it. How many barrels of oil will we have to burn to produce a microgram of antimatter, even in the most efficient case? Is it practical to contain that quantity of antimatter long enough to drop it on a bad guy? Can you make it reasonably safe?

    2. Re:I guess this is it by robogun · · Score: 1
      Quoting Wikipedia:

      When an electron annihilates a positron (anti-electron) the process yields pure energy in a form of gamma rays, see Electron-positron annihilation. When a proton annihilates an antiproton they produce gamma rays and a swarm of secondary particles, like pairs of top-anti-top quarks. The secondary particles will eventually decay into neutrinos and low-energy gamma rays. Knowing that neutrinos could hold some mass, it could mean that the annihilation doesn't transform all the mass into energy.

      While an atomic explosion is released mostly as thermal energy, an antimatter annihilation releases 82 terajoules of gamma ray energy per pound. Thus, barbecued planet.

    3. Re:I guess this is it by jfengel · · Score: 1

      82 terajoules is 20 kilotons of TNT, not nearly enough to barbequeue the planet. It's not even enough to make it medium rare. Hiroshima was 12 kilotons of TNT.

      Besides, at least according to my calculations, you get about 41,000 terajoules per pound of antimatter, not 82. Most figures give about 4,000 terajoules mer megaton. That's about 10 megatons, a good-sized bomb to toast a city but hardly enough to destroy the planet.

      Actually, there's probably a factor of 2 in there since the matter also converts, but I'm not certain about that. It's immaterial here; the difference between 10 megatons and 20 megatons isn't all that large to the planet as a whole. I saw one very unscientific analysis calling for 5*10^16 megatons to blow up the Earth. I'm sure you could wipe all the people out for far less than that, but I'm sure it's more than 10 megatons.

      But you're thinking that 82 TJs is enough to nicely irradiate all the people. Lessee: there are 6 billion people, and let's call it 100 kilos each, absorbing 82 TJs is 82*10^12 joules/6*10^11 kilos = 140 joules per kilo. Plenty, since a lethal dose of gamma rays is around 5 joules per kilo.

      But that's assuming you could distribute the energy evenly, which you can't. Most of it would zap off into space, and much of the rest would be absorbed by the earth. It all turns into heat before it goes very far. But anybody in the vicinity would get pretty fried.

  36. "23 space shuttle fuel tanks" and the "gag order" by sczimme · · Score: 4, Informative


    1 gram of antimatter would equal 23 space shuttle fuel tanks of energy.

    I thought the standard unit of explosive power was the ton of dynamite...

    Perhaps more interesting, after an initial inquiry by the Chronicle in the summer, the Air Force issued a gag order that prohibits any Air Force employee from discussing antimatter research or funding

    This isn't really that interesting or even unusual: Uncle Sam frequently limits what military folks can say about ongoing projects. There is a classification called "Sensitive But Unclassified", or SBU, whcih means the info is not classified as such (Secret, TS, etc.) but it is still not for public disclosure. (Years ago SBU was called "For Official Use Only" or FOUO.) Budgets are generally considered at least SBU, so it should be no suprise that the budget is not publicized.

    /spent six years in the Air Force

    --
    I want to drag this out as long as possible. Bring me my protractor.
  37. What's the point? by Shaiken · · Score: 1

    I'm sure we're all very happy that the real world is a little more like Star-Trek, but what's the point of this? Don't the have big enough bombs already? Do they want a bomb that can blow up the entire planet in one go? Or is this just an attempt to get nuclear like destruction without the stigma of real nuclear weapons?

    1. Re:What's the point? by RetroGeek · · Score: 1

      Do they want a bomb that can blow up the entire planet in one go?

      Um, asteriod? An asteriod which intersects our orbit?

      I would like to know that we have this capability....

      --

      - - - - - - - - - - -
      I am a programmer. I am paid to produce syntax not grammar. Deal with it.
  38. CERN already figured this out... by Anonymous Coward · · Score: 0

    I just read about this. SOmething about blowing up the Pope...

  39. Just imagine.. by JustNiz · · Score: 1

    a beowulf clust.... oh never mind

  40. Oh yeah... by Blue-Footed+Boobie · · Score: 1

    This is a brilliant idea. Remember, it's all wonderfull until the "other side" has their own.

    --
    DAMN YOU OCTODOG! DAMN YOU TO HELL!
  41. Not as spectacular as you think. by techno-vampire · · Score: 4, Insightful

    During a panel at LACon II in '84, Dr. Forward mentioned that calculations showed that an anti-matter bowling ball wouldn't go up in a blaze of light and gamma, it'd sit on the floor sizzling like a drop of water on a griddle for several minutes. From what I gathered, the matter and anti-matter only interact as they come into contact with each other, and even in a normal Earth atmosphere there's a limit as to how many particles touch at any given time. Also, of course, the reaction heats the air up, causing convection currents that lower the pressure. Thinking about it, I guess you'd get the fastest reaction with an anti-dust so that there's as much surface as possible.

    --
    Good, inexpensive web hosting
    1. Re:Not as spectacular as you think. by Hatta · · Score: 1

      From what I gathered, the matter and anti-matter only interact as they come into contact with each other, and even in a normal Earth atmosphere there's a limit as to how many particles touch at any given time. Also, of course, the reaction heats the air up, causing convection currents that lower the pressure. Thinking about it, I guess you'd get the fastest reaction with an anti-dust so that there's as much surface as possible.

      How about liquids? Perhaps a container each of H2O and anti-H2O and some sort of mixing charge to force the two together at high speed?

      --
      Give me Classic Slashdot or give me death!
    2. Re:Not as spectacular as you think. by Anonymous Coward · · Score: 0

      It's easy to get antimatter dust from a mass of antimatter. All you need is an explosion.

    3. Re:Not as spectacular as you think. by rts008 · · Score: 1

      We could always "disperse it quickly" with a nuke!

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
    4. Re:Not as spectacular as you think. by cryptochrome · · Score: 1

      You'd think when the initial contact was made, the energy and heat from that reaction would blow or disintegrate the antimatter ball, imparting speed to the components which drives them out into the air and ground, thus continuing and accelerating the process.

      Well, I'm sure there's some way around it, using a variety of tricks. Channel it with the dilithium crystals or something.

      --

      ---If you can't trust a nerd, who can you trust?

    5. Re:Not as spectacular as you think. by stratjakt · · Score: 1

      Yeah, but it would sit and fizzle at a temperature something near that of the sun for several minutes. There may not be a huge explosive concussion, but a hell of a lot of heat.

      How much damage would a half inch diameter "sun" do in the middle of a city? I imagine it kind of like Doc Oc's fusion ball meets Raiders of the Lost Ark.

      Maybe there's some specific effect they want to achieve, and not just the "big bada boom". The nature of war has shifted (is shifting) to surgical strikes and smart bombs. Drop it in the reservoir and boil up all the water, since poisoning it would be against Geneva?

      --
      I don't need no instructions to know how to rock!!!!
    6. Re:Not as spectacular as you think. by CodeWheeney · · Score: 1
      anti-dust

      Dude, sign me up for some Anti-dust. My house in the desert gets so frickin' dusty, so quick, I need me some of that Anti-dust stuff. I clean the damn air conditioner filter every other week.


      It Explodes?! Cool!

      --
      C8H10N4O2 | Developer > Code
    7. Re:Not as spectacular as you think. by techno-vampire · · Score: 1

      Yeah, you'd think so, and so would I. Alas, Dr. Forward didn't and he's the one that's done the numbers on i. *Sigh!*

      --
      Good, inexpensive web hosting
    8. Re:Not as spectacular as you think. by techno-vampire · · Score: 1
      Yeah, but it would sit and fizzle at a temperature something near that of the sun for several minutes.

      Not the way I heard it. If it did that, the ball would vaporize, but I got the impression it'd just melt. Of course, there'd still be enough gamma and other nasties to make it real unhealthy to watch from close up, and it would stay that way for as long as it was reacting. If you're looking for something that gets rid of people without lots of "flash-bang" this might be just as good.

      --
      Good, inexpensive web hosting
    9. Re:Not as spectacular as you think. by Anonymous Coward · · Score: 0

      Mabe that's their real agenda? A low weight retrofitted 'turbo charger' for nuclear weapons? Put a little anti-matter inside each nuke and increase its destructiveness.

    10. Re:Not as spectacular as you think. by Anonymous Coward · · Score: 1, Interesting

      The tip of an ARC welding rod exceeds the surface temp of the sun and people get exposed to that every day.

    11. Re:Not as spectacular as you think. by Graff · · Score: 1
      During a panel at LACon II in '84, Dr. Forward mentioned that calculations showed that an anti-matter bowling ball wouldn't go up in a blaze of light and gamma, it'd sit on the floor sizzling like a drop of water on a griddle for several minutes. From what I gathered, the matter and anti-matter only interact as they come into contact with each other, and even in a normal Earth atmosphere there's a limit as to how many particles touch at any given time.

      Remember that, as far as we can determine, antimatter is equivalent to its regular-matter counterpart.

      So a block of antimatter carbon would just sit there and react at the surface. However, a container of antimatter hydrogen being released into the atmosphere would be a much more dangerous situation since it would rise, expand, and mix with the normal-matter gas molecules in the air. This would be a much more rapid and violent reaction.

      So it's really not enough to say that you have antimatter, you also have to say what type of antimatter it is and what form is it in.
    12. Re:Not as spectacular as you think. by techno-vampire · · Score: 1
      So it's really not enough to say that you have antimatter, you also have to say what type of antimatter it is and what form is it in.

      Yes. Bob Forward was talking about a lump, like a bowling ball. That's why I was suggesting a dust, or gas might be more effective.

      --
      Good, inexpensive web hosting
    13. Re:Not as spectacular as you think. by Dusabre · · Score: 1

      If it was sitting on the floor it'd be touching the floor with quite a lot of matter and anti-matter touching. Boom.

  42. Other needed research by erroneus · · Score: 2

    Okay rate me off-topic, but is anyone researching the "Anti-weapons matter"?

  43. Weapon powered by Mass Destruction by raider_red · · Score: 1

    Does this mean we're going to start invading countries which build large particle accelerators? I'm not sure invading Switzerland would be such a hot idea.

    --
    It's good to use your head, but not as a battering ram.
    1. Re:Weapon powered by Mass Destruction by Anonymous Coward · · Score: 0

      Remember the CERN is part in France...
      And those awful european used good military research(the interet), and transformed it in a boxom (the web).
      And in Switzerland, there are banks. There is money. It is much more efficient than going to oil first.

    2. Re:Weapon powered by Mass Destruction by Anonymous Coward · · Score: 0

      No, but we might start invading countries that still think "Are they going to start invading __________" is an original and clever joke and/or insult...

    3. Re:Weapon powered by Mass Destruction by BlueUnderwear · · Score: 1
      Remember the CERN is part in France...

      So at least it will be very easy to win that part of the war...

      --
      Say no to software patents.
  44. is it just me or is this ridiculous? by xutopia · · Score: 0

    It sounds like total hogwash to me.

  45. Probably useless by PIPBoy3000 · · Score: 4, Interesting

    It's probably a big waste of money. The efficiencies in creating antimatter are incredibly low. Nuclear power is far cheaper for virtually all applications. From the article:

    With present techniques, the price tag for 100-billionths of a gram of antimatter would be $6 billion

    The only reason I could see it being useful is if you needed an extremely high energy density. "Bullets" with a magnetically suspended speck of antimatter might be handy. They would be virtually undetectable by radar and pack a huge punch. Perhaps the low weights would be useful for space warfare?

    1. Re:Probably useless by System.out.println() · · Score: 1

      Chris Rock (I think it was Chris Rock, at least) was right - bullets should cost five thousand [million] dollars!

    2. Re:Probably useless by MoonBuggy · · Score: 1

      You just need to shop around a bit - Villain Supply is currently offering $450,000,000/litre ;-)

    3. Re:Probably useless by mikeee · · Score: 1

      The application where you'ld want high energy density, and damn the cost, is simple:

      ROCKET FUEL.

      Right now a good rocket can carry maybe 1% of its launch weight to orbit. With antimatter fuel, it's easy to design one that carries more than it weighs.

    4. Re:Probably useless by Anonymous Coward · · Score: 0

      The best part is that it would be relatively cheap to make AM in space. Of course there's the small problem of bringing it to the ground.

    5. Re:Probably useless by archivis · · Score: 1

      Bringing it to the ground is easy.

      Keeping the ground in one piece afterward...difficult.

      --
      In July O7, I got a mac pro. There's no punchline. Just endless joy and wonder.
    6. Re:Probably useless by AKAImBatman · · Score: 3, Insightful

      Considering that I have no idea where they'd get the required amounts of antimatter from, I think the military is having fun blowing smoke up our collective asses. (And those of our enemies.) However, the military *may* be looking into Antimatter catalyzed fissionweapons. Such weapons would need only a few particles of antimatter to fuel a fission warhead that could fit in the palm of your hand.

    7. Re:Probably useless by alphafoo · · Score: 1

      Just a nit, but everything is low weight in space warfare. Low mass on the other hand, might come in handy.

    8. Re:Probably useless by the_2nd_coming · · Score: 1

      it is about energy density, not efficiency.

      --



      I am the Alpha and the Omega-3
    9. Re:Probably useless by clambake · · Score: 1

      It's probably a big waste of money. The efficiencies in creating antimatter are incredibly low. Nuclear power is far cheaper for virtually all applications. From the article:

      With present techniques, the price tag for 100-billionths of a gram of antimatter would be $6 billion


      Actually, when you think about it, the $6B is probably just to build the collider... once you've got that built, all you need is electricity, which is pretty cheap, and you can make 100 billionths of grams of antimatter all day.

    10. Re:Probably useless by Alsee · · Score: 1

      a fission warhead that could fit in the palm of your hand.

      Top 5 reasons nuclear handgrenades are better than ordinary handgrenades.

      5. More fun times hearing the President say "nucular".
      4. Radioactive glow helpful for reading maps at night.
      3. More fun times hearing the President say "nucular".
      2. Simplified instruction manual can stop after step one. Ordinary grenades require three steps: (1) Pull pin (2) Throw (3) Take cover.
      And the number one nuclear handgrenades are better than ordinary handgrenades...
      You only need to issue one to each soldier.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    11. Re:Probably useless by AKAImBatman · · Score: 1

      You might find this article interesting. It seems that after Eisenhower's mispronunciation of "Nuclear" as "Nucular", the military took up the name as a way of distinguishing "Nucular Weapons" (Bad! Evil! Hiss!) from "Nuclear Energy" (Good! Clean! Wonderful!). Their idea is to promote nuclear power through an intentional separation of the two in the language.

      Whether it's working or not is for the public to decide, but my guess is that Bush is using the term "Nucular" on purpose. Especially since he's shown that he's perfectly capable of using terms like "Nuclear Medicine".

    12. Re:Probably useless by sean.peters · · Score: 1

      I looked at the link, and I have to say that the theory that military people use "nucular" on purpose is pretty baseless. I was in the military for many, many years, including a few years when I was read into some SIOP related stuff, plus some time when I worked with nuclear (powered) submarine folks - so I had some occasion to talk about nuclear/nucular related matters. There wasn't any correlation between the pronunciation and the topic ("nucular bombs" vs. "nuclear reactors"). Some people said "nucular" because that was the way they said it, and some said "nuclear" because that was their favorite pronunciation.

      Basing this entire speculation on a conversation that a guy had with a single "nucular" scientist (whom I suspect was joking) is pretty far-fetched.

      Sean

  46. Re:Da Vinci by sevenmonkey · · Score: 1

    You're thinking of _Angels and Demons_ by Dan Brown

  47. you have to love the closing comment by Anonymous Coward · · Score: 0

    The last person interviewed essentially says, we need to develop this energy source for space transportation as well as for making the next generation of weapons, because eventually we are going to destroy the earth.

  48. Not sure. by Izago909 · · Score: 1

    Correct me if I am wrong, but I've been under the impression that directly exposing matter and anti-matter, while resulting in annihilation, wouldn't directly result in an explosion in the traditional sense. I thought that it would only result in the annihilation of local matter (on a 1:1 ratio) and the release of excess energy in the form of heat, light, and/or radiation.

    1. Re:Not sure. by sexylicious · · Score: 1

      If you can get the anti-matter and matter to collide (not as easy as it sounds), then you'll get a reaction that produces two high energy photons (gamma rays). And depending on how much energy you add to the system to make the two particles collide, you could have anywhere from low energy photons (radio, IR) all the way up to another gamma. Beta radiation is possible as well, but not as likely. Alpha radiation is almost impossible from a positron-electron collision.

      A hydrogen-antihydrogen reaction could produce an alpha particle, but gamma radiation is many times more likely.

      The theoretical beauty of these things is that most, if not all, of the radiation is in the form of photons at various wavelengths in the EM spectrum.

      And you can put anti-matter and matter in the same container... You just wouldn't want to heat that container up. The matter-antimatter reaction needs kinetic energy to bring the reactants close enough for a reaction.

    2. Re:Not sure. by Nos. · · Score: 1

      I could be way off here as well, but hey its slashdot right?
      Okay, if you combine 2g of mass (1g anti matter, 1g matter) then you get a release of energy which can be calculated:
      e=mc^2

      e=(0.001Kg * 300,000,000m/s * 300,000,000m/s)=90,000,000,000,000 Joules of energy
      So, 2g = 9x10^13J. According to a quick google search, Hiroshima was 8.4x10^13. So, its a little bigger than Hiroshima as far as energy release.

      Now, we don't know if the reaction would be immediate and violent, or slow and persistant, but there's a LOT of energy stored in matter.

    3. Re:Not sure. by BillNyeTheScienceGuy · · Score: 1

      You are both right and wrong.

      Annihilation of an electron positron pair at rest (i.e. not flying at each other at say 99% the speed of light) results in two .511 mega electronVolt photons that fly apart to conserve momentum. In other words, you get light in the form of high energy (gamma ray) photons.

      However, those two photons are going to start running into electrons and interacting with surrounding matter to bleed off energy to "heat" the matter. FAST. Imagine all the little molecules absorbing energy in a fashion that resembles drinking from a firehose. What you have is a massive amount of unbeliveably fast heating--an explosion.

      Boom.

  49. Good to hear... by Ionizer7 · · Score: 0

    Nukes are so last year... Would these be considered a WMD?

  50. Slush fund. by Anonymous Coward · · Score: 0

    >Air Force employee from discussing antimatter research or funding."

    |official $$$|--->|"anti-matter research"|.-.-.-.->black ops/parties with hookers/government and industry bribes/etc

  51. Weapon research == Power plant research. by SatanicPuppy · · Score: 5, Insightful

    So yea, woo hoo anti-matter power!

    Sure, it's radioactive, just like fission, but hey antimatter is cheap at $62.5 trillion per gram, and it's 10-100 times more powerful!

    Not sure what the point would be in antimatter weapons, besides serious coolness. Nukes are at least stable at room temperature, and if you drop a ball of plutonium on your foot, all you get is broken toes. Wouldn't want to have a power failure anywhere NEAR antimatter.

    --
    ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    1. Re:Weapon research == Power plant research. by gadget+junkie · · Score: 5, Funny

      .....will my tinfoil hat still work?

      --
      "If a boss demands loyalty, give him integrity. But if he demands integrity, give him loyalty." (John Boyd, 1927-1997)
    2. Re:Weapon research == Power plant research. by Rosco+P.+Coltrane · · Score: 5, Funny

      if you drop a ball of plutonium on your foot, all you get is broken toes.

      All 7 of them...

      --
      "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
    3. Re:Weapon research == Power plant research. by eyegone · · Score: 1, Interesting


      ...and if you drop a ball of plutonium on your foot, all you get is broken toes.

      I'm pretty sure that if the radiation exposure isn't enough to kill you, the chemical toxicity of Plutonium would be.

      --
      "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
    4. Re:Weapon research == Power plant research. by mreed911 · · Score: 0

      the price tag for 100-billionths of a gram of antimatter would be $6 billion

      Actually, per the article (above, italics), 1 gram would be $60,000,000,000,000,000 - sixty quadrillion. It's 60 billion billion / 100.

    5. Re:Weapon research == Power plant research. by LWATCDR · · Score: 0

      It may possible to store anti protons inside a buckyball. It could even be stable at room temps just don't light it :)

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    6. Re:Weapon research == Power plant research. by blueg3 · · Score: 2, Informative

      Last I checked, and feel free to correct me, antimatter is not radioactive. Antiparticles are viable ground-state particles that do not spontenously decay, which is what radioactivity is.

      Or perhaps you're thinking that antimatter would be an energy weapon, much like a thermonuclear device, that liberates large amounts of electromagnetic radiation.

      Fortunately, the classic problems with radioactive materials -- particularly, long-term storage and environmental effects of their byproducts (whether in cannisters or in the form of fallout) -- should not exist with antimatter weapons.

    7. Re:Weapon research == Power plant research. by JWW · · Score: 5, Funny

      no, but your antitinfoil hat might!! ;-)

    8. Re:Weapon research == Power plant research. by Joseph+Vigneau · · Score: 5, Interesting
      if you drop a ball of plutonium on your foot, all you get is broken toes.


      This guy became the "first peacetime atom bomb" fatality by dropping a brick on a ball of plutonium.

    9. Re:Weapon research == Power plant research. by Anonymous Coward · · Score: 0

      Wow. the picture of the guys hand after the accident reminds me of the Roswell Alien Autopsy photos. Spooky.

    10. Re:Weapon research == Power plant research. by BlueUnderwear · · Score: 2, Informative
      Last I checked, and feel free to correct me, antimatter is not radioactive. Antiparticles are viable ground-state particles that do not spontenously decay, which is what radioactivity is.

      True, antimatter alone is as stable as normal matter. However, problems arise if you bring anti- and normal matter together. And in our world made up of normal matter, this is almost unavoidable unless some elaborate containment devices are used...

      --
      Say no to software patents.
    11. Re:Weapon research == Power plant research. by grumpygrodyguy · · Score: 4, Interesting

      This guy became the "first peacetime atom bomb" fatality by dropping a brick on a ball of plutonium.

      There was a film called "Fat Man and Little Boy" which included this very incident.

      The guy who died of overexposure was played by John Cusack.

      --
      The government has a defect: it's potentially democratic. Corporations have no defect: they're pure tyrannies. -Chomsky
    12. Re:Weapon research == Power plant research. by marcosdumay · · Score: 1

      Well, I ges you don't want to hold a BALL of plutonium (unless it's to litte to small to break your toes). Now seriously, there is a way to generate antimatter from anything else than energy (from now it has been generated from cinetic energy)? there is the possibility of a antimatter power plant or just antimatter craft fuel?

    13. Re:Weapon research == Power plant research. by Anonymous Coward · · Score: 0

      What kind of freakish wood shop teacher are you?

    14. Re:Weapon research == Power plant research. by blueg3 · · Score: 2, Informative

      Sure, but that just makes it volatile, not radioactive.

    15. Re:Weapon research == Power plant research. by hplasm · · Score: 0

      ...leaving me just the three on the other foot- wah!

      --
      ...and he grinned, like a fox eating shit out of a wire brush.
    16. Re:Weapon research == Power plant research. by SatanicPuppy · · Score: 1

      When they come in contact they turn to energy in the form of heat, light, and gamma radiation.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    17. Re:Weapon research == Power plant research. by blueg3 · · Score: 1

      That's right. I'm not sure what you're trying to say here, except that you really need an antecedent.

      When a particle and antiparticle collide, they annihlate and form high-energy photons. Subsequent collisions of the photons with other particles in the environment will produce secondary effects, like heat. ("Radiative heat" is a lie.)

    18. Re:Weapon research == Power plant research. by Chrispy1000000+the+2 · · Score: 0

      You know, that *just* volatile doesn't make it all that much more reasuring. It's like saying that getting hit by freight train, carring toxic waste, that imediatly derails after it kills you. Sure, you didn't die from the chems, but your still dead.

      --
      Sig
    19. Re:Weapon research == Power plant research. by vsprintf · · Score: 5, Funny

      The guy who died of overexposure was played by John Cusack.

      And another renowned Hollywood nuclear expert, Jane Fonda, was in The China Syndrome. No doubt they will both be testifying before Congress on the dangers of these weapons.

    20. Re:Weapon research == Power plant research. by Xilman · · Score: 1
      I'm pretty sure that if the radiation exposure isn't enough to kill you, the chemical toxicity of Plutonium would be.

      Wrong on both counts. Others have already commented on the radiation. As an ex-chemist I'll restrict myself to pointing out that plutonium has similar chemical toxicity to lead. It's a heavy metal and you don't want to go around eating it for the sake of it, but it really isn't that poisonous. The UPPU club has some members still alive almost sixty years after ingesting their plutonium.

      Paul

      --
      Lasciate ogne speranza, voi ch'intrate
    21. Re:Weapon research == Power plant research. by Michael+Woodhams · · Score: 1

      Pedantic quibble time: Actually it is >1400 times as powerful as fusion, and even more compared to fission.

      The nuclear reaction that releases the greatest percentage of mass into energy is 4 protons (hydrogen nuclei) -> 1 alpha particle (helium nucleus.) This has an 'efficiency' of about 0.7%.

      This is also the reaction that powers the sun. (Technically, it is a series of reactions - either the 'p-p chain' or the 'CNO cycle', but that is too much detail to go into here.)

      In principle, the best you could do would be 56 protons -> iron nucleus, but this wouldn't be feasible.

      --
      Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
    22. Re:Weapon research == Power plant research. by Bendebecker · · Score: 2, Informative

      No, the character played by John Cusack was Doctor Louis Slotin who had on the 21st of May 1945 been involved in an accident:

      Slotin had been instructing a colleague, Alvin C. Graves, who was to replace him at the Omega Site. Also present was S. Allan Kline, a 26-year-old graduate of the University of Chicago, who had been called over to observe the procedure. Five other colleagues were close by as Slotin, a Canadian physicist from Winnipeg who had been part of the team that created the atomic bomb, performed the action that would bring into close proximity the two halves of a beryllium-coated sphere and convert the plutonium to a critical state.

      With his left thumb wedged into a cavity in the top element, Slotin had moved the top half of the sphere closer to the stationary lower portion, a micro-inch at a time. In his right hand was a screwdriver, which was being used to keep the two spheres from touching. Then, in that fatal moment, the screwdriver slipped. The halves of the sphere touched and the plutonium went supercritical.

      The chain reaction was stopped when Slotin knocked the spheres apart, but deadly gamma and neutron radiation had flashed into the room in a blue blaze caused by the instantaneous ionization of the lab's air particles. Louis Slotin had been exposed to almost 1,000 rads of radiation, far more than a lethal dose. Kline, who had been three or four feet away from Slotin, received between 90 and 100 rads, while Graves, standing a bit closer, received an estimated 166 rads.


      http://www3.sympatico.ca/lavitt/louisslotin.html

      The accident involving Daghlian occured in August, oddly enough again on a 21st.

      --
      There's a growing sense that even if The Future comes,
      most of us won't be able to afford it.
      -- Lemmy
    23. Re:Weapon research == Power plant research. by ErikZ · · Score: 0

      Maybe they're working on a way to reduce the costs of making antimatter?

      The warhead doesn't give off any radiation, and the only upkeep is to make sure the containment field equipment is maintained. Also, far less mass is neeeded for the same effect, so you can use much smaller rockets. Looks like a great replacement for the nukes we're using now.

      --
      Democrats or Republicans. They are both taking us to the same place and they are not afraid of us anymore.
    24. Re:Weapon research == Power plant research. by jamesh · · Score: 1

      The same cannot be said if you drop a ball of plutonium on another ball of plutonium though.

    25. Re:Weapon research == Power plant research. by JonLatane · · Score: 0

      That is, provided it doesn't contact the original tinfoil one.

    26. Re:Weapon research == Power plant research. by Rii · · Score: 0

      AT $62.5trillion/gram, wouldn't it be cheaper to just drop 62,500,000,000,000 x 100 pennies from airplanes?
      Just look here:
      http://maddox.xmission.com/penny_drop.html/

    27. Re:Weapon research == Power plant research. by Anonymous Coward · · Score: 0

      no, it isn't like fission at all, we're not fusing hydrogen and helium here, this is a completely different process called "complete and utter annihilation," besides, it can't leave radioactive waste because there won't be any material left to be radioactive with.

    28. Re:Weapon research == Power plant research. by Anonymous Coward · · Score: 0

      ...except that you really need an antecedent.

      Is that when someone drops an Antec case on your head...?

    29. Re:Weapon research == Power plant research. by 6th+time+lucky · · Score: 1

      How am i going to put an antitinfoil hat on my head?

    30. Re:Weapon research == Power plant research. by pk2000 · · Score: 1

      Some people here have pointed out that due to the price of am the bombs made of this stuff would be in the same league with current nuclear bombs.

      This might be true now but I read someplace (sorry cant point to the source) that the price of am can be reduced considerably when the production process is "less clean" than in current scientific outfits.

      Reason is that science needs clean results for their research and experiments but when you need industrial quantities of the stuff you can sacrifice some of the purity for quantity.

      It's like tap water - clean enough for everyday use but not clean enough for scientific experiments.

      And obviously at some point the economies of scale kick in.

    31. Re:Weapon research == Power plant research. by mysticwhiskey · · Score: 1

      You put in on the anti-you. Hmmm, or maybe not. Like a paranoid hasn't got enough to be on guard against let alone themselves.

      --

      Stuck down a hole! In the middle of the night! With an owl!

    32. Re:Weapon research == Power plant research. by Alsee · · Score: 1

      They are expected to testify that the internet is to the motion picture industry as a super-critical plutonium core is to.... ah... something.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    33. Re:Weapon research == Power plant research. by TachyonAT · · Score: 1

      I see what you're getting at but with Anti-matter there is a huge problem with storage. With radioactive materials storage is a problem because of environmental considerations. I agree that antimatter lacks those problems, unless you consider anhililation to be an environmental consideration. Antimatter might possibly be harder to store than plutonium because at least plutonium can touch the container its kept in

    34. Re:Weapon research == Power plant research. by Anonymous Coward · · Score: 0

      I dont buy it. Less clean antimatter production means "boom", no more production line.

    35. Re:Weapon research == Power plant research. by blueg3 · · Score: 1

      True. But aside from widespread devestation, there aren't environmental effects from using antimatter weapons. Of course, if you don't want them to be used, this could be bad.

      I would presume, perhaps incorrectly, that a stable form of storage would be required before we would attempt to store antimatter long-term.

      Plutonium can touch the walls of the container it's held in, but at least antimatter couldn't release toxic chemicals. It wouldn't leak radiation, either, unless it leaked antimatter. (A leaky antimatter container, if it wasn't too leaky, should just contantly release gamma radiation. That stuff's nasty, but at least we could put it in, say, a thick lead room and suffer no ill effects.)

    36. Re:Weapon research == Power plant research. by FuryRaptor · · Score: 1

      Having played Sid Meier's Civilization, I for one can appreciate the importance of having futuristic anti-matter ray-guns that go "vvudd-vvudd-vvudd" while at war with an enemy that lives in caves in the desert. Because when you're on the other end, and you see those ray-guns rolling up to your phalanx sentries on your border, you know immediately "oh shit. I'm doomed."

  52. Re:Since we can never stop fighting with each othe by thedarkstorm · · Score: 1

    The "Govt" already had that, it was called Bio-warfare and disease manufacturing. Problem is, stupid people keep migrating places and spreading the disease.

    --
    ... hey ... I had a .sig, bu then MicroSo$$ embraced it...
  53. Nice to know by Madcapjack · · Score: 1
    Nice to know that we're spending our defense budget wisely. With the development of these new WMD's, in thirty years we won't have to be worrying about just the proliferation of nuclear weapons, but of anti-matter weapons as well.

    Please, some one tell me that they are not missing the irony of the US developing new WMDs?

  54. change the department by Naikrovek · · Score: 5, Funny

    this should be "from the stuff-that-antimatters dept."

    1. Re:change the department by drinkypoo · · Score: 1

      Some jokes are said to kill - that one annihilates.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    2. Re:change the department by Anonymous Coward · · Score: 0
      this should be "from the stuff-that-antimatters dept."

      Old-hat for the jet set, stuff that's completely irrelevant?

  55. Re:Some things I don't understand about anti-matte by Mr.+Bad+Example · · Score: 4, Funny

    > The first seems impossible, unless you has some kind of containment where the anti-matter doesn't actually touch anything.

    Clearly our containment systems must be made of antimatter cats with pieces of antimatter buttered toast strapped to their backs.

  56. The important questions: by burgburgburg · · Score: 1
    What of Lazarus?

    And what of Lazarus?

  57. ecplises nukes? by Anonymous+Cowpat · · Score: 1

    I was under the impression that an antimatter-matter reaction followed the same law as nukes, i.e.
    E=MC^2... so, for the same price, how much plutonium could you get? (bearing in mind that antimatter is the most expensive subsatance available & that the matter to react with it is effectively free & doubles the total ammount of stuff reacting) So, if you can get more than double the ammount of plutonium for the same price (assuming that you can get a 100% efficient reaction), how is it any better bang-per-buck than a conventional nuke?
    Oh, yeah, what do they propose to store the antimatter in? sandwich tubs?

    Why both spending all that time & money developing a totally redundant weapon, when they'd do better to use proven technology and build big H-bombs, or are they planning on dealing with a threat from outer space? like the goa'uld? or the klingons? or the vogons?

    If they've got money to burn they can buy me a new computer...

    --
    FGD 135
    1. Re:ecplises nukes? by Shaiken · · Score: 1

      One kilo of anti-matter will be fully converted to energy. One pount of plutonium will probably convert less than a gram to energy.

    2. Re:ecplises nukes? by Mongo222 · · Score: 1

      1. A nuclear bomb only converts a small fragment of the material in it's core to energy before the core blows apart and the reaction stops.

      2. With antimatter you can dial the resulting explosion up or down in size as much as you want just by changing the amount of antimatter payload up or down. It's infinately varible. Nuclear weapons have a minimum critical size which they will not function bellow. Perfect for when you want that 5K ton explosion, not a 50K ton explosion.

  58. Re:Antimatter weapons? How bad could they be? by the_mad_poster · · Score: 1

    Go ahead and tell them about the twinkie.

    --
    Alito: A vote for Alito is a punch in the eye to put that bitch back in her place!
  59. Rocky Horror by Anonymous Coward · · Score: 0

    When they can focus pure antimatter into a beam and fire it from a raygun, I will finally be impressed!

  60. Great! by natron+2.0 · · Score: 1

    There goes the planet!

    1. Re:Great! by Anonymous Coward · · Score: 0

      from the article: "I think," he said (Lynn), "we need to get off this planet, because I'm afraid we're going to destroy it.

  61. How many VWs? by Spackler · · Score: 1


    Big deal, I have been working on the same thing in my basement.

    I will let you know when I succeed.
    Actually, it's like baking a cake. Trust me, you'll just know.

  62. Re:Some things I don't understand about anti-matte by Trespass · · Score: 3, Informative

    The most common sci-fi containment system is holding the antimatter in a vacuum while suspending it in a powerful magnetic field to keep it from contacting the walls of vessel holding it. I understand something similiar is done with plasma in experimental fusion reactors. It doesn't sound very portable.

  63. If you're dropping The Bomb anyway... by RobertB-DC · · Score: 4, Funny

    Unlike regular nuclear bombs, positron bombs wouldn't eject plumes of radioactive debris. When large numbers of positrons and antielectrons collide, the primary product is an invisible but extremely dangerous burst of gamma radiation. Thus, in principle, a positron bomb could be a step toward one of the military's dreams from the early Cold War: a so-called "clean" superbomb that could kill large numbers of soldiers without ejecting radioactive contaminants over the countryside.

    As depressing as it sounds, this is probably a Good Thing.

    If we take as fact that militaries exist to kill, then it follows logically that they will develop tools to kill as effectively as possible. That's how we've ended up with uranium fission bombs, then plutonium fission bombs, then hydrogen fusion bombs.

    Someone, somewhere, will eventually decide that they need to neutralize their enemy bad enough to accept the consequences of a nuke. It may even be us -- if Bush hadn't restarted research on nuclear bunker-busters, someone else would have eventually.

    So if you accept the depressing notion that use of massively destructive weapons is inevitable, you *want* this research to go forward. At least, this way, you *can* go back home.

    Kind of ironic... for all the talk about "WMD"s, this would be a real Weapon of *Mass* Destruction... or at least, a Weapon of Mass Conversion Directly To Energy.

    --
    Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
    1. Re:If you're dropping The Bomb anyway... by southpolesammy · · Score: 1

      Or call it a Weapon Of Matter ANnihilation. After all, hell hath no fury like a woman scorned...

      --
      Rule #1 -- Politics always trumps technology.
    2. Re:If you're dropping The Bomb anyway... by varjag · · Score: 1

      Unfortunately, this technology could allow for far higher explosion powers than the fission and fusion bombs; in fact, split-a-continent and evaporate-a-sea levels are conceivable.

      So if you're looking for a safer nuke, you look in a wrong direction.

      --
      Lisp is the Tengwar of programming languages.
    3. Re:If you're dropping The Bomb anyway... by Greyfox · · Score: 3, Insightful
      They say soldiers, but hasn't the only use of nuclear weapons in a wartime scenario been against civilians? Oh and our own guys in testing, of course. I was not under the impression that nuclear weapons have ever been used against anyone else's army. And during the cold war, I'm pretty sure that the vast majority of the targets on either side were not military.

      So lets not decieve each other about who such a weapon will be used on, nor its ultimate purpose. Such a bomb would be a weapon designed to kill off the civilian population of a country while leaving their oil fields standing. OK, maybe I'm a little cynical, but I grew up during the height of the cold war at what would have been ground 0 had there been a war. I think I've earned the right to be a bit cynical.

      It's been a while, but I believe I heard about several treaties back in the day banning the research on the "Neutron Bomb." No one particularly liked the idea of a clean weapon that could kill off a large population. All you'd have to do is bomb a region, send some guys in to clear the bodies out and then start moving your own people in. I wouldn't trust the most saintly of governments with a power like that, much less my own.

      I would not, however, object to a particle/beam weapon that could cut an enemy tank or missile up like a big piece of cheese.

      --

      I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

    4. Re:If you're dropping The Bomb anyway... by Anonymous Coward · · Score: 0

      If we take as fact that militaries exist to kill, then it follows logically that they will develop tools to kill as effectively as possible.

      Hmm, that's not necessarily a fact. When I was in basic (Canadian reserves, mind you), we were told that wounding an enemy would be a more valuable goal than killing them. A dead soldier just lies there. A wounded soldier screams like crazy which scares and depresses his comrades, and he requires 1 or 2 other soldiers to drag him off the battlefield, a medic to stop the bleeding, a vehicle to take him back to a field hospital, and an experienced doctor to operate on him.

      I suppose if you're in a quick strike mode, shoot to kill, but if you're in a real war of attrition, shoot for the kneecaps. Actually, your main task is to hit your target, so you generally aim for the centre of mass. However, if you just injure them, that's a good thing.

      The threat of using NBC's (nuclear, biological, or chemical weapons) also follows this idea. The threat of their use means the other side has to deploy significant resources to defend against their use. Trying to do anything while you're dressed in a full chemical suit is twice or three times as hard, especially in hot environments.

    5. Re:If you're dropping The Bomb anyway... by sicking · · Score: 1

      As depressing as it sounds, this is probably a Good Thing.

      No, this is not a good thing in any way.

      If we take as fact that militaries exist to kill, then it follows logically that they will develop tools to kill as effectively as possible

      Where'd you get the idea that the military exists to kill? In all "civilized" countries the the military has two primary purposes:
      1. To overpower the enemy and for him into submission.
      2. To prevent the enemy from doing the same thing to you.

      The war in Iraq was (supposedly) to overpower the Iraqies and make them hand over any weapons of mass destruction (though theories about other reasons exist, *cough*oil,halliburton contracts,reelections,etc*cough*). It was never to kill them. In fact, a major goal is to kill as few people as possible.

      Weapons like this will only cause the other guy to arm even heavier, which will make number 2 above harder. Also, should one of these weapons ever be used we might not live to see tomorrow. Any of us. (hey, at least the Vogons will be happy).

      When a groups primary purpose is to kill, and they're successfull at it, then we call that genocide, not war.

      --
      Failing to learn from history dooms you to repeat it.
    6. Re:If you're dropping The Bomb anyway... by Anonymous Coward · · Score: 0

      so why don't we have armies consisting of sumo wrestlers if the aim is to overpower?

    7. Re:If you're dropping The Bomb anyway... by BawbBitchen · · Score: 1

      OK, I am not a big Bush fan but we really need to get the facts right on the Halliburton thing:

      1. While thier contract is for billions of dollars, the profit, which is what counts, is only going to be 1-2% at best. This is a very very low margin for their normal operations (10-40%) and they are thinking about getting out because it is not worth it. Any idea that they are makes billions is bull-shit. Profit is a measure of the money you have left after the contract, not the size of the contract.

      2. Over 48 Halliburtion employees have died in Iraq. 124+ have been wounded.

      3. KBR, the sub of Halliburtion, that is doing the work in Iraq lost millions of dollars last quater. They are not expected to make a profit in Iraq.

      4. Being that the VP was CEO of Halliburtion it puts them under the microscope and in the end is bad for biz. Having the VP was not helpfull to them.

      While Halliburtion may have: screwed up paperwork (normal for a goverment contract) and done some stupid things to assume there is some sort of prid pro quo on this is just stupid. Halliburtion was the largest companys in this field and it is no suprize they got the contract when it was a no-bid contract. The use of non-bid contracts from the goverment in a rush (ie war or emergancy) is a historical fact in US history. If anything Halliburtion is guilty of being to stupid to know that because of the no-bid and VP that they should have handled things differently.

    8. Re:If you're dropping The Bomb anyway... by Anonymous Coward · · Score: 0

      When a groups primary purpose is to kill, and they're successfull at it, then we call that genocide, not war.

      And you're full of shit. The U.S. Army's purpose is to kill targets. Not to make friends. Not to win their hearts and minds (with the exception of SF). Not to police. It is a broadsword. The targets are generally other militaries, or extremely hostile non-state actors such as terrorists.

      It's stupid-assed thinking like yours that results in the misapplication of the U.S. military in places like Somalia.

    9. Re:If you're dropping The Bomb anyway... by Anonymous Coward · · Score: 0

      Someone, somewhere, will eventually decide that they need to neutralize their enemy bad enough to accept the consequences of a nuke. It may even be us...

      It may even be us? Um, it already was us, did you forget Hiroshima and Nagasaki?

    10. Re:If you're dropping The Bomb anyway... by Erwos · · Score: 1

      You are ignoring the difference between tactical and strategic nuclear weapons.

      Strategic nuclear weapons (usually mounted on ICBMs or those giant strategic bombers) are indeed designed to kill cities. They generally range in size from .5 to 10 megatons.

      Tactical nuclear weapons are much, much smaller (50 to 250 kilotons) and are usually artillery mounted, or put on tactical aircraft (such as those launched off an aircraft carrier). They will indeed do a number on a civilian population, but are designed for real military engagements - ones where a huge amount of power is overkill and undesirable. This is the category that nuclear bunker busters fall into.

      The article seems to imply we could use anti-matter weapons as tactical weapons - just put a very, very small amount of anti-matter into the bomb. The EMP usages are also interesting - the military's emphasis on disabling command and control infrastructure makes this a very tempting prospect.

      The idea that it would be used to build "a bigger nuke" seems utterly idiotic. We have nukes, and they work just fine. Anything bigger than the current ones are just overkill anyways - you want to hit multiple targets, not hit one REALLY good.

      Moreover, if you're interested in obliterating a city, you can do it without nukes or fancy antimatter weapons. The allies firebombed Dresden in WWII, and there wasn't all too much left when they were done,

      In short: the likelihood of these weapons being used against a civilian population seems pretty minute, even in these tense days. The prevailing attitude in the US military is to reduce civilian casualties as much as possible (within "reason"), and bigger nukes don't fit into that game plan.

      My own thesis is that this is related to space propulsion, not weapons (at least directly). If you want to play war in space, you can't do it with these ugly, slow space shuttles using chemical propulsion.

      -Erwos

      --
      Plausible conjecture should not be misrepresented as proof positive.
    11. Re:If you're dropping The Bomb anyway... by coyote-san · · Score: 1

      Wouldn't the real targeting information be highly classified? Aren't you making a lot of assumptions about what was targeted during the cold war?

      We must put Hiroshima and Nagasaki in context. They were cities in a militarized country, their entire economy was directed towards the war effort. The scale of nuclear weapons is such that any attack on any military base would necessarily involve substantial civilian deaths so the situation is hardly black and white.

      Finally if we use "attacks on civilians" as our yardstick then nuclear weapons are far better than conventional weapons. Or have you forgotten about Tokyo, Dresden, Rottendam, Coventry and other cities with far greater death tolls (at least in some cases) with conventional weapons.

      (Many people would also contrast these attacks with the countless Japanese atrocities in Korea, China and the rest of the occupied lands. But I guess raping nuns and catching babies on the point of bayonets don't count since those deaths come one by one.)

      As for neutron bombs, the issue was concern that the Warsaw Pact nations had so many good tanks that NATO had to be prepared for Germany to be entirely overrun by the time NATO could respond. The only realistic responses were capitulation (in which case why not surrender now?) or escalating to unlimited nuclear war. You couldn't use regular nuclear weapons against the invading tanks without destroying the country you're trying to defend.

      "Enhanced radiation" weapons provided another option - blow them over invading forces and you would knock them out while sparing most of the nearby towns. It sounds harsh, but it provided a sufficiently credible threat to discourage anyone who thought (perhaps correctly) that the US wouldn't sacrifice New York to save Bonn.

      --
      For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
    12. Re:If you're dropping The Bomb anyway... by coyote-san · · Score: 1
      P.S., a few more points.

      Hiroshima, Nagasaki and the other two cities were not relatively untouched by bombing because they had no military value, they were relatively untouched because the strategic planners knew the atomic bomb was in the pipe and the long-term military value of learning the effects of an atomic bomb outweighed the short-term value of bombing the cities immediately.

      Atomic bombs have a number of surprising nuances. E.g., shortly after the war much of the surviving Japanese fleet and some old US warships were anchored at sea, an atomic bomb was dropped on them. I think one or two ships sank, much to the surprise and dismay of the planners. In more of a PR stunt than a real test a second bomb was dropped 1500 or so feet down a cable. The resulting column of water is very impressive and that footage is widely used. All of the ships were sunk but with surprisingly little damage, e.g., I believe survey subs found galleys full of unbroken china, etc.

      US planners knew we would win the war, but the question was at what cost (to both US and the Japanese) and how the Soviets would get involved. They were also war-weary but unlikely to pass up a chance at getting a warm water port in a partitioned Japan. That would have caused a lot of problems for the US later.

      There was a military coup after the Emperor taped an unconditional surrender message after Nagasaki was bombed. It came very close to succeeding.

      --
      For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
    13. Re:If you're dropping The Bomb anyway... by Anonymous Coward · · Score: 0

      1. To overpower the enemy and for him into submission.
      2. To prevent the enemy from doing the same thing to you.


      Clausewitz states that the goal of warfare is "to remove the enemy's will to fight." In many cases, this means pounding the crap out of them, until they surrender, and making sure they lack the tools and enthusiasm to rearm later on. However, in some cases, it may mean just lasting long enough such that the opposition gives up, and just goes away. This leads to asymmetric warfare - ie, terrorism.

      For the US to win a war against anyone else, we need to pound them into submission (or, if you want to be clever, use the CIA to stage a coup, use money to pay off the local power brokers, etc.) For anyone else to win a war against the US, all they need to do is last enough for domestic opinion to turn against the war (this was the lesson of Vietnam to non-US powers).

    14. Re:If you're dropping The Bomb anyway... by Greyfox · · Score: 1
      I probably am making assumptions, but we were all pretty much led to believe that the bases that we were on would be among the first targets and that cities like Washington DC, New York and various other major population centers were also on the list. Our bases were important targets because that's where the bombers were, although by the time any soviet nukes got there, the bombers would have already been scrambled.

      I'm led to believe that there was not a military plan for what to do after the bomber crews' bombs were delivered, but that several of the crews had the intention of flying to some South American country or others after "The War" and taking over, because there wouldn't be much left of either the USA or most of Europe at that point. Fun stuff. Of course, they'd probably all have died of radiation poisoning within few years if not a few weeks anyway...

      --

      I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

    15. Re:If you're dropping The Bomb anyway... by sicking · · Score: 1

      1. While thier contract is for billions of dollars, the profit, which is what counts, is only going to be 1-2% at best. This is a very very low margin for their normal operations (10-40%) and they are thinking about getting out because it is not worth it. Any idea that they are makes billions is bull-shit. Profit is a measure of the money you have left after the contract, not the size of the contract.

      There's not just immideate profit that you look for. Getting a foot in the door to iraq could mean big money in the future once the country has stabalized and the money start flowing (which could be a lot of money in a country like Iraq). Also, if top managers can increase their salaries or bonuses due to the increased number of contracts that won't show up as profit.

      But above all, why weren't the contracts given to Iraqi firms? This way they can quicker get back on their feet by keeping the money in their country as well as getting jobs for the citizens. It's a well known fact that the best way to keep wars from happening is by building a working economy. This was how EU started out, as a union after WWII between France and Germany to give them an economic incentive to keep them from going to war again.

      2. Over 48 Halliburtion employees have died in Iraq. 124+ have been wounded.

      This is very raw, but how many of them were top managers that had signed up for the contract in the first place?


      I'm sure I don't have all the facts and that my oppinions can be wrong, but I just don't see this Halliburton thing being the RightThing.

      --
      Failing to learn from history dooms you to repeat it.
  64. Oh great.... by Tangurena · · Score: 1
    If your electricity gets shut off, your antimatter containment vessel will detonate. Who needs Al Qeda when we have the electric grid.

    And, as others have mentioned, a gram of this stuff will take more energy to make than all the output of all the generators in the world. The mad scientists who make this stuff (just add me to the list of would-be mad scientists) make anti matter a few atoms at a time. And use enough power to keep a small city running. Remember what a particle accelerator is?

    You can color me cynical about the practicality of anti-matter as a weapon in the next century. For those keeping track, the color of cynical is somewhere between #000000 and #FFFFFF.

    1. Re:Oh great.... by micromoog · · Score: 1
      If your electricity gets shut off, your antimatter containment vessel will detonate. Who needs Al Qeda when we have the electric grid.

      If only someone could invent some means of "storing" electricity for long periods of time, or even "generating" it on the fly from other energy sources. Alas, technology still hasn't caught up with Tangurena.

    2. Re:Oh great.... by Tangurena · · Score: 1
      Since the power required (to power up your particle accelerator) is close to what a small city uses, and the power used to store positrons is about an order of magnitude smaller, none of those new-fangled gadgets called, oh, capacitors, or batteries will supply anywhere near enough power. Those "hi tech" thingies are about 4 orders of magnitude too small. How much power does CERN use? How much power would the Superconducting Supercollider have used, if it had actually been built?

      All it takes is some idiot with a backhoe, and we get to practice our Scotty impersonation: Captain! She's gonna blow any minute now!

    3. Re:Oh great.... by NoMoreNicksLeft · · Score: 1

      Assuming that there isn't some plausible, soon-to-be-discovered antimatter breeder reaction. At which point it might become just as practical as whatever storage technology we have available.

  65. Dear US Air Force by dchamp · · Score: 4, Funny

    Dear US Air Force. Please don't blow up the planet.

    Thank You,

    A Concerned Citizen

    Interviewer : Do you have the power to destroy the Earth?
    The Tick : Egads! I hope not. That's where I keep all my stuff!

  66. Stargate by Suit_N_Tie · · Score: 0

    Sounds like this story comes from the same people that claim the U.S. Air Force are hiding a "Stargate", whatever that is.

  67. Star Trek by Anonymous Coward · · Score: 0

    The Enterprise used anti-matter fuel at the rate of one gram/second. No wonder they had warp speed.

    Warp 5, Zulu.

    1. Re:Star Trek by Paladine97 · · Score: 1

      They also had a potential warp core breach about every four episodes. I mean if they can't keep it safe in Stardate 47988, how are we supposed to keep it safe in Stardate -319758.35?

  68. Look out. by kabocox · · Score: 1

    Let's see. If we can use a small amount to power an engine and blow stuff up, I envision us having a small arms race to build a huge stealth swarm of bomb/WMD watchers to hover over the heads of those we don't like. Think AA sized battery with the energy content to fly from the US to any spot on the globe then over most of the year there. With a pay load of 2-4 D sized battery's that could cleanly wipe out New York delivered with GPS pin point accuracy and the video feed would be streamed straight to the major news outlets.

    I can't wait. We can already build everything except the small power source. Small long lived power sources have just as many civilian uses as well.

  69. Re:[little john] WHAT? [/little john] by Anonymous Coward · · Score: 0

    Sure, it's expensive.

    How do we make it less expensive?

    By funding research, which seems to be what the air force is doing.

    Astonishing!

  70. My guess is this has been going on for a long time by davidwr · · Score: 4, Interesting

    I'd be shocked if this research hasn't been going on since the early days of the Cold War.

    Like any technology, antimatter can be used for good or evil. Ever get a PET scan? That's antimatter right in the middle of your body. Don't worry, you won't grow a third leg or anything from it.

    I'm sure the DoD is aware of this, but gamma-ray bursts can cause nuclear changes, which can create radioactive particles that linger. It's not nearly the problem of traditional fallout, and is even be "negligible" for a sufficiently large value of "negligible." Much more likely is ionization which can kill living tissue and cause chemical changes to non-living materials. This can cause buildings to become less structurally sound, for example. However, absent the "negligible" secondary radiation I mentioned above, a conquering army can roll in without wearing radiation suits.

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
  71. Medical (Peaceful) Uses of Positron by abcho · · Score: 5, Informative

    For a balanced view, it is important to realize that anti-matter physics have yielded substantial medical and non-military benefits already. Many people probably already encountered various applications of this technology without realizing it.

    For example, Positron Emission Tomography (PET) is a very useful clinical and medical research tool for brain and cardiac functional imaging. See: Positron Emission Tomography

    1. Re:Medical (Peaceful) Uses of Positron by huie · · Score: 1

      I thought that functional MRI (checking for the oxygen levels in the blood stream with MRI) had gotten to the point where it was better than PET. No need for a patient to ingest/breathe radioactive isotopes (especially large amounts if you want a good real-time image), abundance of MRI imagers, etc.

      Okay, embarassing secret time- I actually just read about fMRI in wired and said, "aha, that's why I haven't heard much about PET for a while."

  72. Why positronium? by Anonymous Coward · · Score: 1, Insightful

    Why do people make a big deal over positronium, aside from the fundamental physics that can be learned from it? Positronium, like hydrogen, is a neutral particle and as such, is unaffected by magnetic fields. It seems to me that the storage problems would increase by storing antimatter as positronium as opposed to storing it as seperate positrons and anti-protons.

  73. Well... by Anonymous Coward · · Score: 0

    Maybe they take too much stuff? By looking out into other nuclear reactions it might be easier to get a bigger bang for less heavy expensive metal which posses a long lasting health hazard. If they can get a hydrogen weapon smaller and cleaner, it might be usable to deliver to things like hardened installations burried under mountains, with only a short lived fallout. Doesn't really work with islamists. They'd be happy to be immolated in nuclear fire. But for states like Iran, North Korea, at some point they have to ask themselves if it's worth it when they can't build enough to insure the destruction of the US, and they can't dig a hole deep enough to protect what they've got.

    From the US perspective, it makes some sense. Naturally, a nation would strive to insure itself at least a win-lose position from every dimension in war. A cheap way is to ally with someone who has the capability, but the US very frequently doesn't have that option.

    Even outside the horror of a thermonuclear weapon which might be considered "useable", there is something to be said for making them smaller, cheaper, more maintainable, since they must exist, and so must be maintained.

  74. radioactive fallout by avandesande · · Score: 1

    What happens to a heavy ion that colliods with a positron? Most likely the result would be radioactive byproduct.

    --
    love is just extroverted narcissism
  75. wrong applications by Paralizer · · Score: 0

    This technology should be (if it is at all) researched strictly for its energy producing potential. Why apply such technology to weaponry? It would only produce a device to kill more people faster, and who wants that? For the same reason, I never understood why anyone would want to research the rail gun.. "hey everyone, lets use this new extremely powerful new energy source to kill ourselves!" .. sigh

    1. Re:wrong applications by OwlofCreamCheese · · Score: 1

      meh, it makes sense to work on things as weapons first. its easy to break things than it is to fix things.

      --
      -You're wasting your time. Alfador only likes me.
    2. Re:wrong applications by tit0.c · · Score: 1

      Apparently it`s much better to use huge amounts of money to create more efficient ways of killing other humans, thus getting them to hate your guts than it is to use that money to help humanity.

      Like the guy in the article says : "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."

  76. nice by Anonymous Coward · · Score: 0

    So when do they think a Death Star might be launched?

  77. Obligatory Animal House Quote... by sbowles · · Score: 1
    "It just doesn't matter!" ... Bluto Blutarsky

    --
    You sly dog: you got me monologuing! - Syndrome
  78. Re:Antimatter weapons? How bad could they be? by pete-classic · · Score: 1

    Total plutonic reversal?

    -Peter

  79. Well... by Mullen · · Score: 1

    Atleast they are not researching the Omega Particle!
    Now, I can sleep better at night!

    --
    Linux O Muerte!
  80. Pointless. by Jaywalk · · Score: 3, Insightful

    Exactly what military threat do they envision where they need a bigger "boom" than what they have now? Every current military threat isn't a matter of having insufficient explosive power, but having difficulty ascertaining the target. This stuff may have practical use as a non-military explosive (e.g., asteroid deflection) but the U.S. military already has the necessary force to blow up anything on earth using existing technology.

    --
    ===== Murphy's Law is recursive. =====
    1. Re:Pointless. by ElDuderino44137 · · Score: 1

      I don't know about you ...

      But I welcome our new antimatter overlords.

      Cheers,
      -- The Dude

    2. Re:Pointless. by Gulik · · Score: 4, Funny

      Exactly what military threat do they envision where they need a bigger "boom" than what they have now?

      Actually, as others have posted, it seems to be more that it's a different kind of boom -- one which doesn't throw lots of radioactive contaminants into the atmosphere, for one. It just, you know, kills everybody nearby with X-rays (I believe).

      I can't help but assume that half the impetus behind this research are the Trek geeks in the Air Force wanting to be the first one to say "We've got an antimatter containment breach." They know they'll be dead shortly afterwards, but they're okay with that. Kind of like the geek equivalent of dying for the glory of God.

    3. Re:Pointless. by InfiniteWisdom · · Score: 1

      It doesn't necessarily have to be a bigger boom. Its hard to make a nuke smaller than a kiloton or so. Maybe you could use a few micrograms of the stuff and have a missile that is small enough that you can carry thousands of it in a plane instead of 5 or 10 but still produce an explosion just as large.

    4. Re:Pointless. by Anonymous Coward · · Score: 0

      Plausible force ... our ICBM fleet isn't a plausible force because our politicians aren't willing to accept the collateral damage. Hell, they aren't willing to accept the collateral damage of killing murderous ragheads. We've let several of them live because we might risk civilians. Back to the point, a megaton bomb with no fallout would have less collateral damage and would be quite useful in a war against china.

    5. Re:Pointless. by fitten · · Score: 1

      ... I think the goal is to do it with as few vehicles as possible...

    6. Re:Pointless. by Barto · · Score: 1

      Star Trek Geek #1: "We've got an antimatter containment breach!"
      Star Trek Geek #2: "Today IS a good day to DIE!"
      Star Trek Geeks: Hahahahahaha aaaaaaaaaaaaaaaarrrggg...

  81. 23 space shuttle fuel tanks of energy by Gary+Destruction · · Score: 1

    Well if that's true, than the space program might be able to overcome weight limitations. More could be sent into space at a time. Antimatter could be used to accelerate lunar colonization as more materials could be rocketed to the moon per launch.

  82. "Safer" Storage? by Anonymous Coward · · Score: 0

    If they can store positronium, why not go all the way and store it as anti-hydrogen? That is, create an anti-atom of a positron orbiting an antiproton. Anti-helium might even be better, since it would be chemically inert too.

  83. You got that right. by dethl · · Score: 1

    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."

    --
    "Some fight for law. Some fight for justice. What will you fight for? One day, you will see."
  84. Re:Some things I don't understand about anti-matte by peculiarmethod · · Score: 2, Informative

    You would store it with magnetic fields, presumably. We know a lot about those. Pretty good at making them efficiently now, as well. Radiation? We're pretty good at testing radiation safely as well, but I suspect we'll just use it on some poor unsuspecting country first. Measure later. If you get a warning that we're under attack by the same type of device, just duck and cover like Tommy the Turtle.

    Anti-matter can't touch matter.. but you can build anti-matter containments.. even devices, but I suspect we are very far from this, as it takes a lot of anti-matter to create something on such a large scale. We'll probably use a form of particle trickery, directing the resulting anti-matter towards matter. Viola. Weapon.

    --
    ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
  85. Re:Some things I don't understand about anti-matte by xutopia · · Score: 1

    Silly putty of course! What else did you think it was for?

  86. This is long term research, folks by Michael+Woodhams · · Score: 4, Interesting

    Don't panic/celebrate in anticipation of antimatter weapons being deployed 15 years from now.

    From the article:
    "about 50-millionths of a gram could generate a blast equal to the explosion (roughly 4,000 pounds of TNT, according to the FBI) at the Alfred P. Murrah Federal Building in Oklahoma City in 1995."

    and

    "With present techniques, the price tag for 100-billionths of a gram of antimatter would be $6 billion"

    from which we can calculate that blowing up a building with antimatter will cost about 3 trillion dollars. (And tens or hundreds of millions for the equipment to confine the antimatter until you want it to detonate, but that is negligible in comparison.)

    Also notice that while the antimatter may be the ultimately compact explosive, the containment equipment required will increase the size of a warhead by many orders of magnitude. No antimatter rifle bullets anytime soon.

    --
    Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
    1. Re:This is long term research, folks by Anonymous Coward · · Score: 0

      Just ask Kodak. I'm sure they'll soon have 3 trillion dollars from their new anti-matter software patent...

    2. Re:This is long term research, folks by BlueUnderwear · · Score: 1
      their new anti-matter software patent...

      Which reminds me of an old joke:

      Q: What is the difference between a landmine and a software patent?
      A: If you step on a landmine, at least that landmine is no longer dangerous to anyone else...

      --
      Say no to software patents.
    3. Re:This is long term research, folks by Michael+Woodhams · · Score: 1

      To be fair, so far as I know we haven't every built a facility dedicated to efficient large-scale production and collection of anti-matter. It wouldn't surprise me if such a facility reduced the cost by a factor of 100 or 1000. I expect that a rough design for such a facility is a goal of this research.

      If we assume that the maximum cost the military would pay for enough antimater to blow up a building was $1 million, the price has to come down by a factor of 3,000,000. I really doubt this is feasible in the forseeable future (say 50 years.)

      --
      Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
    4. Re:This is long term research, folks by Esion+Modnar · · Score: 1
      from which we can calculate that blowing up a building with antimatter will cost about 3 trillion dollars

      Or... for a mere trillion you could probably bribe any country into submission. You think Kim Jung Il would ever turn down a cool trillion? (Erm, never mind...)

      The same technology which would allow us to produce antimatter cheaply enough to produce super-duper weapons, would also allow us to build and deploy interplanetary, and perhaps interstellar, spacecraft. Would we? Will we? Or maybe we'll just focus next on how to make our Sun go nova...

      --

      They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
  87. Re:[little john] WHAT? [/little john] by Fulcrum+of+Evil · · Score: 1

    This is insane. A gram of antimatter would cost almost more money than exists on earth if I recall. You thought nukes were expensive? wait till you see the military budget if this gets taken seriously.

    Point of order: that's not relevant until some aliens show up and try to sell it to us. The question is, how do you create it efficiently, and what's your power source?

    --
    "We returned the General to El Salvador, or maybe Guatemala, it's difficult to tell from 10,000 feet"
  88. Freedom of Information Act by bigtangringo · · Score: 1, Interesting

    Time to print out a template from http://www.blackvault.com/ Thank you Mr. Greenewald.

    --
    Yes, I am a smart ass; it's better than the alternative.
  89. I'm curious as to why Matter + Antimatter = Energy by Enigma_Man · · Score: 1

    I know this is a _gross_ oversimplification, but 1 + -1 = 0. So... is "anti"matter just a misnomer somewhat, or am I looking at it from the wrong parabola?

    I always thought it'd be funny if antimatter + matter just equalled a nifty "fop" noise and then nothing.

    -Jesse

    --
    Nothing says "unprofessional job" like wrinkles in your duct tape.
  90. Re:Antimatter weapons? How bad could they be? by Anonymous Coward · · Score: 0

    Liberal (adj.): Free from bigotry; open to progress; tolerant of others.

    ??? Not in this country bub ...

  91. Frickin "Anti-Matter" by neuro.slug · · Score: 4, Funny

    So what I've done is taken this .."anti-matter" and mounted it in a giant conical cannon. I shall call it.. The "Anti-Matter Horn".

    Mwa ha ha ha!

  92. They're doing it at the BMRF, I heard... by john_sheu · · Score: 0

    Ah, so that is the resonance cascade they were planning!

  93. And if unsucessful... by AchilleTalon · · Score: 1
    Smith's storage effort is the "world's first attempt to store large quantities of positronium atoms in a laboratory experiment," Edwards noted in his March speech. "If successful, this approach will open the door to storing militarily significant quantities of positronium atoms."

    Santa Fe Herald, September 28 2005

    Yesterday morning, the Positronics Research LLC labs disappeared in a big flash. FBI is still investigating on the cause, but it seems Ossama bin Laden's organization, Al-Qaeda, is under the spots...

    --
    Achille Talon
    Hop!
  94. Re:[little john] WHAT? [/little john] by PitaBred · · Score: 1

    With current production methings, yes, it would. That's why there's research to try to bring that down ;) You know, funding to make the impossible possible.

  95. "Using it as energy" - Impossible by Anonymous Coward · · Score: 0

    The problem with antimatter is creating it. There just isn't any around, because we're in an area with lots of matter. So to create it, we have to put in energy. And guess what? This little principle called conservation of mass-energy says that we must put in as much energy to get X grams of antimatter as the X grams would give up when annihilated. What we really have is a way to store up lots of energy made by conventional means and then release it all at once, not a new clean energy source.

    And releasing that much energy at once isn't even necessarily useful. Instead of creating a few grams of antimatter, you could just create a whole bunch of chemical or nuclear weapons. How many enemy cities will be so big that carpet-bombing or a nuke can't do the job?

    (I won't even touch on *why* the heck we would want to destroy an entire city. You don't see cities made up of only enemy combattants, do you? For that matter, isn't it easier to get rid of "enemies" by not giving people a reason to hate you than by blasting them to smithereens?)

    1. Re:"Using it as energy" - Impossible by AchilleTalon · · Score: 1

      Well, that's just to confirm the article itself was just misleading talking about bombs, since what really matter's was to provide aircrafts with a very, very, very long lasting energy source to increase uptime. Also, given the fact petroleum energy must, on day, be replaced and fuel-batteries may not do the job to keep a jet in the air, it makes sense that AF was looking for an alternate energy container that can be filled with something produced by electricity which in turn may be produced by anything else...

      --
      Achille Talon
      Hop!
  96. They're not powerful enough by Colin+Smith · · Score: 1

    Till a grunt can parchute into the enemy territory, hike through 50 miles worth of jungle with it in his backpack, crawl through 10 miles of underground tunnels and vapourise an entire mountain with it.

    OK, so you don't mention that it only has a 5 second fuse. You put that information in the instructions. It's not like most of them can read anyway.

    --
    Deleted
    1. Re:They're not powerful enough by 3263827 · · Score: 1

      " It's not like most of them can read anyway."

      Wow, what a funny guy. Nice of you to insult an entire group of people. Not only are you a rude idiot, but a) you can't spell, and b) you're factually incorrect. Today's military (US that is) has a higher education level than the general populace. But then again, you're proof of that...

    2. Re:They're not powerful enough by Anonymous Coward · · Score: 0

      Then there will be the inevitable massive $$ spent on finding countermeasures to the same damn weapons we invented.

      Wait until some kid from Oklahoma gets his hands on one of these and rental truck.

    3. Re:They're not powerful enough by Anonymous Coward · · Score: 0

      crank up your sarcasm detector a notch..

    4. Re:They're not powerful enough by scowling · · Score: 1

      I think it'd be fair to say that non-com infantry aren't well-educated.

      --
      www.kitchengeek.com -- Nosh for
    5. Re:They're not powerful enough by jasmusic · · Score: 1

      As long as only we have the weapons or only we have the countermeasures, we're in good shape. But sitting around like sheep and waiting for other countries to figure it out first is going to leave us in a world of hurt. Atomic weapon theory wasn't an insider secret; scientists around the world had been contemplating the concept for a nice little while. Many inventions are incremental; subsequent revisions of technology are usually in relation to the previous, and can usually be predicted and anticipated by anyone with any knowledge of the technology. We aren't doing ourselves a favor by letting others get to it first, because they inevitably will.

  97. Classification acronyms by halivar · · Score: 4, Funny

    This isn't really that interesting or even unusual: Uncle Sam frequently limits what military folks can say about ongoing projects. There is a classification called "Sensitive But Unclassified", or SBU, whcih means the info is not classified as such (Secret, TS, etc.) but it is still not for public disclosure. (Years ago SBU was called "For Official Use Only" or FOUO.) Budgets are generally considered at least SBU, so it should be no suprise that the budget is not publicized.

    Well, since they just telling employees not to talk about it, the proper designation is Sensitive Topic For the Uninitiated, or STFU.

  98. Evil Twin by ericspinder · · Score: 2, Funny

    That whole ying and yang thing of matter/antimatter got me thinking about my evil self in the other universe. Since I have a goatee, does that mean that my evil twin is clean shaven?

    --
    The grass is only greener, if you don't take care of your own lawn.
    1. Re:Evil Twin by Anonymous Coward · · Score: 0

      Since I have a goatee, does that mean that my evil twin is clean shaven?

      Yes, infact...It also means that he's a she, very attractive, and gets more pussy than Gubner' Arnold could ever hope to grope!

      *poke*

    2. Re:Evil Twin by Anonymous Coward · · Score: 1, Insightful

      Maybe you're the evil twin.........

    3. Re:Evil Twin by Planesdragon · · Score: 1

      Yes. it also means that you're as evil as it gets. The mirror ericspinder is, in fact, a goody two-shoes pansy.

      My evil twin, on the other hand, has the other half of my facial hair, and is just as confusing to the plot elements. We're scheming to open a rift and exchange electronic razors for fashion sense; look for the "two grey universes" coming soon.

    4. Re:Evil Twin by Auraveda · · Score: 1

      Well, maybe you're the evil twin.

    5. Re:Evil Twin by Anonymous Coward · · Score: 0

      Depends. Which one of you is wearing the eye patch?

  99. Trade Policy Anonymous... by Anonymous Coward · · Score: 0

    I did NAFTA while reviewing China's MFN. It was like kissing Ross Perot.

  100. Re:Antimatter weapons? How bad could they be? by Luigi30 · · Score: 1

    What'll happen to the Twinkies?

    --
    503 Sig Unavailable

    The Signature could not be accessed. Please try again later or contact the administrator
  101. Silly Asses by Y2 · · Score: 1
    'Smith is looking to store positrons in a quasi-stable form called positronium. A positronium "atom" (as physicists dub it) consists of an electron and antielectron, orbiting each other. Normally these two particles would quickly collide and self-annihilate within a fraction of a second -- but by manipulating electrical and magnetic fields in their vicinity, Smith hopes to make positronium atoms last much longer.'

    Insanity. If the power fails, it all goes up. Now if you can generate the positronium just before launch of a warhead, that may be just what you want.

    On the upside (from the safety point of view), 'Although the worldwide production capacity has been growing at a nearly geometric rate since the discovery of the antiproton in 1955, the current output rate of 1 to 10 nanograms (ng) per year is minuscule compared to that of other exotic materials.' [http://www.engr.psu.edu/antimatter/Papers/NASA_an ti.pdf] goes on to cite a current 'energy cost of $62.5 trillion per gram (g) of antiprotons.'

    --
    "But all your emitter and collector are belong to me!"
  102. Re:Some things I don't understand about anti-matte by Anonymous Coward · · Score: 0

    You couldn't even use magnetic or electric fields to hold the antimatter in place since these fields consist of matter particles as well.

  103. Clearance sale by peacefinder · · Score: 1

    Antimatter hand grenades--- Cheap!

    --
    With reasonable men I will reason; with humane men I will plead; but to tyrants I will give no quarter. -- William Lloyd
  104. Re:[little john] WHAT? [/little john] by secretsquirel · · Score: 0

    "wait till you see the military budget if this gets taken seriously"

    Don't wait too long to see that budget. They don't exactly post the "black budget" on the goarmy.com homepage. If they actually think they can contain that much anti-matter long enough to be stored in a weapon without accidentally blowing up nevada then thats damn interesting. Wonder what kinda superconductors they're working with. So how long till my flying car?

  105. Obligatory by Anonymous Coward · · Score: 0

    In Soviet Russia, YOU destroy the antimatter.

  106. Anti-hydrogen bomb by thedarb · · Score: 1

    I've often wondered what the destructive force of an anti-hydrogen fusion bomb would be, even since childhood. I wouldn't be surprised if just one could be a world wide doomsday device.

    *TheDarb

    --
    This sig intentionally left blank.
  107. Anti-Matter Resch. by a3217055 · · Score: 2, Insightful

    This is research has two paths either great and powerful things or some sort of "nuclear mineing" ( they would use nuclear weapons to do strip mineing. The air force needs to do something better with its time. Anti-matter weapons. In a couple of years we will see this ... "Aircraft carrier vanishes in large explosion because of anti-matter containment field failing". How foolish.... Maybe it is an arm's race against the terrorists who are taking away America's liberty ? www.mrpicassohead.com

    1. Re:Anti-Matter Resch. by Marxist+Hacker+42 · · Score: 1

      the terrorists who are taking away America's liberty?

      The Air Force is in an arms race with the Bush Administration?

      No, I know what you meant- just the way you wrote it ignored the Mooreian Interpretation. Yes, certainly we are in an arms race if you can fit something that has a fireball the size of Hieroshima in the palm of your hand. That would be the ultimate terrorist weapon. Of course, IIRC, matter-antimatter explosions theoretically are energy only, no alpha, beta, or gamma particles to deal with- so theoretically this would be a much "cleaner" weapon than a nuke.

      --
      SJW: a person who perceives an injustice, and while correcting it, commits a greater injustice.
    2. Re:Anti-Matter Resch. by Charvak · · Score: 2

      Why do you say that ?
      If an electron and positron react you get a photon and gamma ray is a high energetic photon. I am sure, that when the heavy subatomic particle like neutron, proton are mixed with their anti counterpart you may have gamma "particle" coming out.

    3. Re:Anti-Matter Resch. by Marxist+Hacker+42 · · Score: 1, Interesting

      I failed to realize that. I thought they simply anihilated each other- basically "radiating" only lower energy particles past the initial fireball, a burst of energy and then nothing (no LASTING radiation). But you make a good point- and if there's *any* supra-uranium metals nearby, the gamma ray could trigger fission.

      --
      SJW: a person who perceives an injustice, and while correcting it, commits a greater injustice.
    4. Re:Anti-Matter Resch. by a3217055 · · Score: 1

      Well when anti-matter and matter collide they release energy. Matter and energy are supposedly interchangable, all that matter in that ball of anti-matter cannot survive and thus must be turned into energy, and energy of all type will be emitted, so there will be a lot of gamma radiation etc. The worst part of nuclear weapons is the ionizin radiation from beta particles. Alpha particles are really slow and can be defelcted by the skin. But beta particles can go in to you cells and create free radicals that can cause major problems. Imageine a free oxygen atom in your bone marrow, not good if it is near the nucleus. While gamma rays are bad too they don't linger enough and since they are really really powerful they just pass right through you ionising as they go but not as much. I was thinking after 4.5 billion years of the earth being born ( from all the dust and rock ), evolution out of almost pools of mud to us. We will see how the world turns out in the future. I personally think war should be fought the style of online games. Much more fun and lot of people will participate. And very low casualty. take care y'll -A

    5. Re:Anti-Matter Resch. by Charvak · · Score: 5, Interesting

      Here is the math..
      E = 2mc^2
      E = h*frequency
      Frequency of the photon = 2 m*c*c/h
      where m = mass of electron c = speed of light
      h = planck constant
      Now according to google
      m = 9.109*10^-31 c= 3*10^8 h = 6.63 *10-34
      frequency comes out to be 2.47*10^20 hertz
      which comes under gamma rays.
      So indeed the positron+electron will produce gamma rays

    6. Re:Anti-Matter Resch. by Durandal64 · · Score: 4, Informative

      A particle of anti-matter colliding with its matter counterpart will produce an annihilation of 100% efficiency. And yes, there will be resulting gamma-ray photons. But this reaction will not produce radioactive materials, like a nuclear fission reaction would.

      And the article didn't mention the chief problem with storing anti-matter. You can't allow it to touch anything. At all. It has to be in a vacuum container and make no contact with the edges. Otherwise, you'll get an explosion.

    7. Re:Anti-Matter Resch. by ComputerSherpa · · Score: 1

      Heh, if the containment field on a tank full of antimatter failed, it would blow up a lot more than the carrier. My guess is it would take out a sizable chunk of the planet.

      --
      Information wants to be anthropomorphized!
    8. Re:Anti-Matter Resch. by jfdawes · · Score: 3, Informative
      Or course, the following quote is from the article that only some people who click the link actually get:


      Another problem is the terribly unruly behavior of positrons whenever physicists try to corral them into a special container. Inside these containers, known as Penning traps, magnetic fields prevent the antiparticles from contacting the material wall of the container -- lest they annihilate on contact. Unfortunately, because like-charged particles repel each other, the positrons push each other apart and quickly squirt out of the trap.

      If positrons can't be stored for long periods, they're as useless to the military as an armored personnel carrier without a gas tank. So Edwards is funding investigations of ways to make positrons last longer in storage.
    9. Re:Anti-Matter Resch. by Anonymous Coward · · Score: 0

      Parent has the right idea, but is wrong on one detail which is very important to a physicist but inconsequential to the lay person.

      If you combine to particles of mass m, you do indeed get E=2mc^2. However, what results is not one photon, but TWO -- this is needed to conserve momentum (in the rest frame, the photons travel away in opposite directions). So actually the frequency you'd get is half of what the parent quoted, which is still insanely high.

    10. Re:Anti-Matter Resch. by Charvak · · Score: 1

      Yes you are right.
      The momentum can be conserved even in one photon case except when the electron and positron are colliding head on.
      Still the resultant photon will be in gamma ray frequency 1.23*10^20 Hz.

    11. Re:Anti-Matter Resch. by smurf975 · · Score: 1

      So you are saying that after the A-bomb the next big thing will be at this moment the gamma-bomb?

      --
      -- I don't buy it, I grow it.
    12. Re:Anti-Matter Resch. by norton_I · · Score: 1

      No, you can never conserve energy in a electron-positron anhillation with a single photon, it is always two. If the particles collide "head on", the photons will have equal energy, if their center-of-mass is moving, one will be blue shifted and the other red shifted, but it never goes away.

    13. Re:Anti-Matter Resch. by Charvak · · Score: 1

      You mean momentum.

      Yes you can conserve momentum with a single photon except in head on collison. It is true however that there are always two photon.

      Consider that the electron is moving in south east direction and positron in north east. When they collide their north - south momentum will cancel out. Now the only remaining momentum is in the east direction. This momentum will be the momentum of the photon moving in the east direction.
      The reason the momentum cant be conserved during head on collison is that the resultant momentum has to be zero and single photon will have a mometum.

    14. Re:Anti-Matter Resch. by Anonymous Coward · · Score: 1, Informative
      But you make a good point- and if there's *any* supra-uranium metals nearby, the gamma ray could trigger fission.
      Electron-positron annihilation releases a pair of 511 keV photons. Medical x-ray photons are typically in the range 15-100 keV. So the radiation isn't terribly exotic. It might have some potential for directly stimulating nuclear reactions, but I wouldn't expect it to be a major concern, especially with the energetic stuff like uranium and thorium.

      The thing to worry about is fusion bombs. In the classic designs, the trigger is a fission bomb, which makes it difficult and expensive. With antimatter for the trigger, a fusion bomb would become fairly easy. You might be able to build it without any radioactives at all, which would be really scary, although less clever designers should probably design it around a slightly-enriched uranium spark plug to guarantee ignition.

      Here's a question to ponder: How much antimatter take, and how deep in does it need to be delivered, to ignite thermonuclear burning in the surface of a star?

    15. Re:Anti-Matter Resch. by tha_mink · · Score: 1

      Gamma rays yes...but radioactive debris no. Ergo the interest.

      --
      You'll have that sometimes...
    16. Re:Anti-Matter Resch. by Xilman · · Score: 2, Informative
      Yes you can conserve momentum with a single photon except in head on collison. It is true however that there are always two photon.

      Consider that the electron is moving in south east direction and positron in north east. When they collide their north - south momentum will cancel out. Now the only remaining momentum is in the east direction. This momentum will be the momentum of the photon moving in the east direction. The reason the momentum cant be conserved during head on collison is that the resultant momentum has to be zero and single photon will have a mometum.

      Errm, no you can't.

      Einstein told us that as far as the laws of physics are concerned, one reference frame is as good as another. Now imagine you are sitting near to the the center of mass of the electron and positron and moving along with it. In your frame you see the two particles moving towards a head-on collision and with no net momentum. After the collision you will see at least one photon (by conservation of mass-energy) with zero net momentum (by conservation of momentum). The only way to get net zero momentum is by having at least two photons, travelling in suitable directions, since every photon carries momentum.

      If you bring conservation of angular momentum into play, there is another wrinkle. The electron and positron each have a half-unit of intrinsic angular momentum, called "spin" for brevity. A photon has unit spin. So the two initial particles can have either net zero spin (the two angular momenta are equal, opposite and cancel) or net unit spin. After the collision, the photons each have unit spin and so the net spin is either zero or two, depending on whether the spins are opposite or aligned respectively.

      Spot the problem?

      If the initial total spin of the two particles is unity, three photons have to be created to ensure that all the conservation laws are satisfied.

      In the center of mass frame of reference, the three photons have equal momenta (and so have equal energy and are directed at an angle of 120 degrees from each other) and two of them have spins which are oppositely aligned.

      Paul

      --
      Lasciate ogne speranza, voi ch'intrate
    17. Re:Anti-Matter Resch. by Pig+Hogger · · Score: 1
      If positrons can't be stored for long periods, they're as useless to the military as an armored personnel carrier without a gas tank. So Edwards is funding investigations of ways to make positrons last longer in storage.
      Well, it's easy then. Just put them inside a slaver stasis field...
    18. Re:Anti-Matter Resch. by Too+Much+Noise · · Score: 1

      After the collision, the photons each have unit spin and so the net spin is either zero or two, depending on whether the spins are opposite or aligned respectively.

      Erm ... no.

      To nitpick on your nitpick - adding 2 spins of magnitude 1 can give a total angular momentum of 0, 1 or 2. Thus 2 photons would do just fine for all cases.

      Of course, you can have more - but the process cross-section would be a lot smaller (short argument, phase-space volume difference) Thus, most of the time you only get 2 photons.

    19. Re:Anti-Matter Resch. by Fran_P · · Score: 3, Informative
      But you make a good point- and if there's *any* supra-uranium metals nearby, the gamma ray could trigger fission.

      Correct me if I'm wrong, but I thought that fission was caused by low energy neutrons. Gamma rays, and even high energy massive particles would not result in fission in any nearby fissile material.

    20. Re:Anti-Matter Resch. by Anonymous Coward · · Score: 0

      Of course, that would work if we actually had longitudinal photons as well to account for the s_z=0 state ... I'd better dust the brain off before posting next time. Oh well ...

    21. Re:Anti-Matter Resch. by d474 · · Score: 1
      So you are saying that after the A-bomb the next big thing will be at this moment the gamma-bomb?
      Actually you skipped the newly developed F-Bomb recently tested by Dick Cheney on the Senate floor. Then comes the G-Bomb.
      --
      Authority questions you. Return the favor.
    22. Re:Anti-Matter Resch. by Anonymous Coward · · Score: 0

      Sure it did. RTFA

      "And the article didn't mention the chief problem with storing anti-matter. You can't allow it to touch anything. At all. It has to be in a vacuum container and make no contact with the edges. Otherwise, you'll get an explosion."

    23. Re:Anti-Matter Resch. by GORby_ · · Score: 1

      No, the next big thing was a few years ago... the B-Bomb. All it took was a few boeings and a few towers. The loss of property and life - however tragic - wasn't comparable to the damage caused by an A-Bomb, but if you only look back at the reaction of the current administration they seem to have considered it at least as dangerous.

      Well, I guess at least the big campaign sponsors are happy with the military spending and increasing oil prices, and that's all that matters, or is it?

    24. Re:Anti-Matter Resch. by jonadab · · Score: 1

      > Inside these containers, known as Penning traps, magnetic fields prevent
      > the antiparticles from contacting the material wall of the container --
      > lest they annihilate on contact. Unfortunately, because like-charged
      > particles repel each other, the positrons push each other apart and quickly
      > squirt out of the trap.

      I assume there's some problem with the obvious solution to this, namely
      getting yourself some antiprotons and putting them together with the positrons
      to make some antihydrogen, and putting _that_ in the Penning traps.

      --
      Cut that out, or I will ship you to Norilsk in a box.
    25. Re:Anti-Matter Resch. by freqres · · Score: 1

      So all we need to do is mine some dilithium crystals and we're all set ;)

      --
      Rampant Ninja related crimes these days...Whitehouse is not the exception
    26. Re:Anti-Matter Resch. by Decaff · · Score: 1

      A particle of anti-matter colliding with its matter counterpart will produce an annihilation of 100% efficiency. And yes, there will be resulting gamma-ray photons.

      well, to be pedantic, not quite 100%, as you still have the photons! Its 100% conversion of mass to energy (to simplify things).

      But this reaction will not produce radioactive materials, like a nuclear fission reaction would.

      Well, the gamma rays are likely to induce radioactivity in things they come into contact with.

    27. Re:Anti-Matter Resch. by Charvak · · Score: 1

      Let me say that you are right but I still have some doubt. After the collison the reference frame is still moving along with the photon so the momentum is zero after the collison.

    28. Re:Anti-Matter Resch. by Xilman · · Score: 1
      Let me say that you are right but I still have some doubt. After the collison the reference frame is still moving along with the photon so the momentum is zero after the collison.

      Nope. After the collision the reference frame isn't still moving "along with the photon", even assuming that a single photon could be created, which it can't. Let's assume it does, though, and see what conclusion we draw.

      First off, the reference frame was that of the centre of mass of the electron/positron pair. We know, pace Einstein, that frame is travelling at less than the speed of light with respect to anything else in the universe. After the collision, the frame is still moving the same with respect to the universe, but a photon has been created. In the reference frame the electron positron pair had zero net momentum. By conservation of momentum, the photon must therefore also have zero momentum. This point you seem to agree on. However, the momentum of a photon is proportional to its energy (p=E/c). If it has zero momentum, it has zero energy. Voila! Conservation of mass-energy has been violated. We've reached a contradiction and something has gone wrong somewhere. The error lies in the assumption that a single photon can be produced. To remedy the error you have to add at least one more photon so that energy and momentum can be simultaneously conserved.

      Paul

      --
      Lasciate ogne speranza, voi ch'intrate
    29. Re:Anti-Matter Resch. by Xilman · · Score: 1
      Of course, you can have more - but the process cross-section would be a lot smaller (short argument, phase-space volume difference)

      Which is why ortho- and para-positronium have significantly different lifetimes.

      Paul

      --
      Lasciate ogne speranza, voi ch'intrate
    30. Re:Anti-Matter Resch. by Charvak · · Score: 1

      Thanks for the explanation. I am a doctor not a physicist. :)
      After the post, I found the problem with my model. The photon has to move with the speed of light in all frame of reference hence there will be resultant momentum and hence momentum will not be conserved.

    31. Re:Anti-Matter Resch. by Xilman · · Score: 1
      Thanks for the explanation. I am a doctor not a physicist. :)

      You're welcome. I'm not a physicist either, but I sometimes play one on Slashdot. I'm not entirely sure what I am.

      Paul

      --
      Lasciate ogne speranza, voi ch'intrate
  108. Orion by Scott+Laird · · Score: 5, Interesting

    I think everyone's spinning it wrong. The most useful thing you can do with lots of positrons would be to build an antimater-catalyzed nuclear pulse propulsion engine. With a good source for lots of positrons, you should be able to build nukes small enough to be useful.

    1. Re:Orion by fredmosby · · Score: 1

      Or you could use antimatter catalyzed fission to create a smaller atomic bomb. I seem to remember something about the U.S. government looking for a way to make smaller 'bunker busting' nukes.

    2. Re:Orion by Conspir8or · · Score: 1

      > I think everyone's spinning it wrong.

      Ah, quantum-number puns. Good times.

  109. Re:[little john] WHAT? [/little john] by kippy · · Score: 1

    I'm all for making this cheaper but the $10 trillion dollar(or whatever)/gram figure is based on the costs at Fermi Lab. They're cutting edge as far as antimatter production and we'd still have to mortgage the planet to make any meaningful amounts.

    Perhaps they will be able to cut production costs by a factor of a thousand. Then a few grams would only consume the entire DoD budget.

  110. Units of measure conversion? by erroneus · · Score: 3, Funny

    Okay I'm just as confused as the next person about that unit of measure. But I am sure there are real much smarter people here that could enlighten us.

    Could someone convert that into units of "can of whoop-ass?"

    1. Re:Units of measure conversion? by ZorbaTHut · · Score: 1
      Can?

      Hell, I suggest converting this into entire barrels.

      --
      Breaking Into the Industry - A development log about starting a game studio.
    2. Re:Units of measure conversion? by hobbesx · · Score: 1

      Well, stealing from the Burning Library of Congress thread up above, we know that 1g of antimatter is equivalent to 0.23313375x10^14 joules. One can of Whoop Ass has 110 calories, which Google tells us is 460.24 joules. So, one Burning Library of Congress is roughly equal to 5.06548214x10^10 cans of Whoop Ass.

      Sadly, Google can't convert to "Can you smell what The Rock is cookin'?"s

      --
      This rating is Unfair ( ) ( ) Fair (*) Funny
      Sigh... If only. Modding would be so much more fun.
  111. ultimate irony by nusratt · · Score: 1

    At the end of TFA:
    'Lynn is enthusiastic about antimatter because he believes it could propel futuristic space rockets.
    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it." '

    Oh, you mean by pursuing ever-more-super super-weapons?

    And we'll escape from this problem by taking the same technology and attitudes to other planets?

    1. Re:ultimate irony by Anonymous Coward · · Score: 0

      the most realistic method of getting things into space currently is by detonating a nuclear device underneath it. (not quite as simple as that, but you get the idea)

      For obvious reasons, this was scrapped long before it was ever actually used.

      Antimatter, on the other hand, doesnt spread killer material across the country when it is set off.

      In short: yes.

    2. Re:ultimate irony by nusratt · · Score: 1

      I'm not sure, but I think you've missed my point.

      The topic at hand is a weapons technology whose destructive power dwarfs that of thermonuclear.
      (Dirty or not, destruction is destruction.)

      Yet this person in the article-- who expresses concern that we'll destroy this planet-- believes that we can use this same technology to colonize other planets, and simultaneously somehow avoid destroying those planets.

      Which causes of earth's destruction would we be leaving behind?

  112. Other uses... by Hamster+Of+Death · · Score: 3, Interesting

    I know next to nothing about this, but I'll toss this out there anyway.
    How efficiently is this stuff converted to energy once it contacts matter? Could it be used to say generate electricity (or whatever, heat/light etc..)?
    It would make a great way to clean up current nuclear waste if you could get the costs of production down. Just dump some antimatter on some nuclear waste (in a controlled manner of course), and voila, energy AND less waste .

    Just a thought...

  113. Fallout question? by Guysdrinkingbeer · · Score: 1

    First I will say that I am not as well versed on real world physics of antimatter as I should be, never seemed to be all that important. I know the cost would be out of this world for such a weapon, but wouldn't one benefit be little to no fall out?
    Just asking.

    --
    Great people don't need people to complete them, great people complete other people. -- Matthew Pawlikowski.
  114. a mosquito could fly up your nose with a microgram by Anonymous Coward · · Score: 0

    and you'd have 0.000023 space shuttle in your head
    looks like it'snot enough for orbit

  115. One reason for the gag order: by museumpeace · · Score: 4, Funny

    .yaw ralucatceps yllear a ni lla ti dne ot detnaw ew sselnu retemirep tnemenifnoc eht evael reven dna pu tuhs ot su dlot yehT !bal eht ta ereh tnempiuqe retupmoc ruo htiw elbuort fo stros lla gnivah erew ew deciton neht tub gninnur retrevnoc rettamitan eht tog eW

    --
    SLASHDOT: news for people who can't concentrate on work or have no life at all and got tired of yelling back at the TV.
    1. Re:One reason for the gag order: by tchdab1 · · Score: 1

      Actually, the Air Force needed to limit the amount of information to prevent conflict with anti-information. They discovered (information) + (anti-information)= (spin)C**2

      Information plus anti-information results in catastrophically successful amounts of info-spin, meaning the end of life as we know it.

  116. i dunno by cyberwitz · · Score: 1

    Instead of research on Anti Matter I suspect that they are doing research that Anti-Matters. But I could just be a jaded civil servant that's seen too many boondoggles...

    --
    [This sig left intentionally blank.]
  117. Aftermath? by Brakz0rz · · Score: 1

    Does an antimatter/matter explosion cause radioactive waste and fallout to be left behind or is it a 'clean' reaction?

    --
    "Man will never be free until the last king is strangled with the entrails of the last priest." - Denis Diderot
    1. Re:Aftermath? by aquabat · · Score: 1

      It's clean. Matter + antimatter = light. Lots of light. Of course once you start burning matter and antimatter, you're using the ultimate non-renewable resource ;)

      --
      A republic cannot succeed till it contains a certain body of men imbued with the principles of justice and honour.
  118. Re:Some things I don't understand about anti-matte by Anonymous Coward · · Score: 0

    We've been storing antimatter for decades in Penning traps.

  119. That's their job. by Engineer-Poet · · Score: 1
    My concern is that we use wisdom in the race to build bigger and better weapons. Do we REALLY need a weapon like this?
    It's actually a smaller and better weapon, and I believe the answer is yes. Look at the difference between the damage in the bombing in Serbia and Iraq. Between those two we got the Joint Direct Attack Munition (JDAM), and our ability to put explosives onto a target with pinpoint accuracy got so good we could use one bomb where we used to need ten. We even got so good some folks found we could dispense with the explosive and just drop a steel shell full of concrete to kill a target like a tank.

    I doubt we're going to see antimatter cheap enough to be more than a research material for decades, but when we can turn it into devices which make it impossible for anyone to field an army it essentially makes conventional warfare into suicide. Isn't that what you wanted?

  120. This is only a small part of weapons research. by Futurepower(R) · · Score: 0, Troll


    By some measures, the U.S. government is the most violent government in the history of the world. The U.S. government has directly killed an estimated 3,000,000 people since the end of the Second World War in 24 military actions.

    The system of violence works by creating fear in citizens so rich people can profit. Purchases of oil for war making and purchases of weapons are areas that are secret enough that those who want corruption can make huge profits.

    This is only a small part of weapons research, and you only heard about it because of an accidental leak.

    It's 1:20 PM. Do you know what your government is doing? No, you don't.

    --
    Bush: When Saudis attack, invade Iraq.

    1. Re:This is only a small part of weapons research. by kin_korn_karn · · Score: 1

      I guess you must have always wanted to see Cuba. :(

    2. Re:This is only a small part of weapons research. by NerveGas · · Score: 5, Interesting


      If you think that 3 million deaths over 60 years makes the US government the worst in history, you should go back to the history books.

      In African history, there were plenty of times when 3 million over 60 years would pale in comparison. Then, look into the colonial period of England, France, Spain, Portugal, and Belgium. Between the numbers of natives murdered, worked to death, killed by disease, and the slaves brought in to replace them, 3 million over 60 years wouldn't look so bad at all. In fact, one particularly dark period of Belgian rule in the Congo brought about 10 million deaths over 40 years.

      Germany, of course, slaughtered far more than 3 million (perhaps as high as 11 million) during WW2. The Russian gulag system would rival the 3 million mark, and that was perpetrated against it's own citizens.

      I'm not in any way taking any side on any part - American or otherwise. I'm just saying that your statement of the US government being the worst in the history of the world would take an awfully skewed, narrow viewpoint to accept.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    3. Re:This is only a small part of weapons research. by benzapp · · Score: 2, Interesting

      3 million tutsis were slaughtered in a mere three months with nothing more than machetes.

      3 million people die every single day for no reason what so ever.

      Who gives a fuck about 3 million people? There are 6 billion on this planet, and thats looking to double every 25 years. What is the bigger problem here? 3 million deaths? Or 100 billion new lives?

      I so tired of the ridiculous value judgement that death = bad, life = good.

      We are on the verge of destroying the world. Its not because of some vast conspiracy. Its because everyone on this planet wants to keep fucking and having lots of children. Maybe if 10 million died every day, we could prevent this planet from turning into one gigantic apartment complex.

      --
      I don't read or respond to AC posts
    4. Re:This is only a small part of weapons research. by apharov · · Score: 1

      It's a grim situation when you have to back to at least WWII to find parallels for what the USA is doing to the world right now, not to even mention colonial times...

    5. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      one gigantic apartment complex

      Before omm was omm, after omm will be omm, within omm is omm, without omm is omm. Omm is one, we are one, mass is one, all are one....

    6. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      Stop obsessing about your mother. And get yourself some help for that dyslexic problem!

    7. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      And yet I keep hearing about population decline, AIDs epidemics and such. Could you please point me to some CURRENT numbers that you are drawing your conclusions from?

    8. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      The list of 20th Century Democides.

      I don't see the United States on that list, if it should be why does it get so much of the attention rather than the other countries committing more atrocities?

    9. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      it's closer to 30,000 per day, so you're within a few orders of magnitude, but...

    10. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      Put down that bong and step away from your computer!

      If you don't get help at Charter, please, get help somewhere.

    11. Re:This is only a small part of weapons research. by OzBeserk · · Score: 1
      Would you volunteer to be in that 10 million? How about those you care about? How about 1000 Americans?

      The hysteria generated by ~2000 deaths in the US on Sept 11 compared with the indifference shown over 3 million tutsis deaths, or ferver for a war with 10,000 iraqi civilian casualties, speaks better than any words could about how the western world values human life in other cultures.

    12. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      The fact this cold hearted SOB got modded +5 interesting is a fucking traversty. Now wonder you sepo bastards are so keen on WMD.

    13. Re:This is only a small part of weapons research. by NerveGas · · Score: 1

      The hysteria generated by ~2000 deaths in the US on Sept 11 compared with the indifference shown over 3 million tutsis deaths, or ferver for a war with 10,000 iraqi civilian casualties, speaks better than any words could about how the western world values human life in other cultures.

      That is certainly true. Although you've heard a lot about the terrorist attacks from Chechen rebels since 9/11, they've been going on for far longer - bombing apartment complexes and killing hundreds and even thousands at a time - yet they rarely, if ever, made the U.S. news before terrorism became front-page.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    14. Re:This is only a small part of weapons research. by shakah · · Score: 1
      There are 6 billion on this planet, and thats looking to double every 25 years.
      How about reining in that alarmist estimate -- from Human Population Growth:
      The several agencies that try to predict future population seem to be moving closer to a consensus that:
      • the world population will continue to grow until after the middle of this century
      • reaching a peak of some 9 billion (up from today's 6.4 billion) and then
      • perhaps declining in the waning years of this century.
    15. Re:This is only a small part of weapons research. by NerveGas · · Score: 1

      DOH! I hit "submit" too early. Here's the rest.

      (on the note of the 10,000 Iraqi casualties, note that the UN figures (not JWB's figures) on those found in mass graves, murdered by Saddam's regime, are in the tens of thousands. Human Rights Watch estimates that over 290,000 people were murdered by Saddam's regime. It could well be argued that 10,000 innocent deaths might be favorable to another quarter-million innocent deaths.

      I have met a number of Iraqis, every one of which has told me of immediate family members murdered by Saddam's regime.)

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    16. Re:This is only a small part of weapons research. by tsm_sf · · Score: 5, Funny

      "America, we're not quite as bad as Stalin or the Nazis"

      --
      Literalism isn't a form of humor, it's you being irritating.
    17. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      Sure, but Irak war is happening now

    18. Re:This is only a small part of weapons research. by benzapp · · Score: 1

      Would you volunteer to be in that 10 million? How about those you care about? How about 1000 Americans?

      I think you missed the point here. life is struggle.

      Animals don't volunteer to committ suicide for some higher purpose, nor should humans. The natural way is to fight for survival. What this means is I would kill you to survive. Because I am American, of course I am going to be loyal to my own people. Would you suggest a wolf decide to kill his own pack for all of wolfdom? No, he is going to kill the competing pack.

      However, since you are apparently NOT American, I would have no problems sterilizing your entire population so that in a generation your people and culture will cease to exist.

      The hysteria generated by ~2000 deaths in the US on Sept 11 compared with the indifference shown over 3 million tutsis deaths, or ferver for a war with 10,000 iraqi civilian casualties, speaks better than any words could about how the western world values human life in other cultures.

      What the fuck fantasy world are you living in? I've got news for you, the vast majority of people in this world have about as much concern for Americans as Americans do for all those other people. The reality is we have a million feel good peacenik groups complaining about the suffering in some god foresaken shithold marching on the streets every day. Are the people of Japan donating hundreds of millions of dollars to feed the starving Ethiopians? Do they even have a Sally Struthers in Japan? Are the people of France donating their free time and resources to rebuild Middle Germany? Or the rest of Eastern Europe?

      Americans have consistently shown greater concern for the world in the 20th century than any other nation. If anything, this has been a mistake. Would Africa be so tremendously overpopulated if snivelling Americans didn't bother feeding all those people?

      No, we need a new Sally Struthers.. who does nothing but hand out sterilization and abortion pills like candy. Put it in the food supply, the fertilizer! let it rain from the clouds far above!

      --
      I don't read or respond to AC posts
    19. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      Yeah, your theory holds water, except I've never met anyone espousing it who has volunteered to be among those who die "for the sake of our planet". I know you will insist that "somebody else" should die, or at least stop "fucking", as you so eloquently put it. But know that you're not going to go far arguing about life and death value judgments without being judged a fascist or a hypocrite.

    20. Re:This is only a small part of weapons research. by NerveGas · · Score: 1


      And if it weren't happening now, those large numbers of murders would be happening now. What's your point?

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    21. Re:This is only a small part of weapons research. by Anonymous Coward · · Score: 0

      It could well be argued that 10,000 innocent deaths might be favorable to another quarter-million innocent deaths.

      Not to those 10,000 dead innocents.

  121. Why assume it's for a bomb? by Perl-Pusher · · Score: 1

    Anti-matter if it can be produced with less energy than what it produces could yield tremendous clean energy. It could also be used to create a very destructive particle beam weapon.

    1. Re:Why assume it's for a bomb? by Dwedit · · Score: 1

      Nice prepetual motion machine idea...
      "In this house, we obey the laws of thermodynamics!"

    2. Re:Why assume it's for a bomb? by Perl-Pusher · · Score: 1

      It's not perpetual motion. Think! Both anti-matter & matter are obliterated and turned into energy. The matter was produced by the big bang, our sun etc. The anti-matter is produced with energy produced elesewhere. Since matter is being converted to energy the laws of thermal dynamics are intact. The amount of energy needed to create the anti-matter only need be less than the conversion to energy of the mass of the anti-matter and normal matter. I never said we get anything for free, just less dirty by products since the conversion is more efficent than fusion or fission.

    3. Re:Why assume it's for a bomb? by Anonymous Coward · · Score: 0

      The Air Force was already spending big bucks on anti-gravity systems powered by -guess what- antimatter. Based on their rate of progress in that area, I would expect they have acheived some dramatic results by now.

      Perhaps the weaponization project is merely a tacit admission that they have solved the antimatter production problem and now have enough antimatter left over to start thinking of other applications, like making bombs.

      I'm sure the boys in blue are drooling at the prospect of dropping bombs from their unstoppable antigrav machines. Goody for them. Can't stop them anyway. They'll do what they want.

    4. Re:Why assume it's for a bomb? by gordlea · · Score: 1

      You're forgetting about the matter that goes into the reaction...

      --

      Choose yer poison: Prophets or Profits

  122. Anti-Matter by Station · · Score: 1, Interesting

    First, yes, anti-matter can't touch anything at all, otherwise boom. Best way to contain it would be magnetic bottles in vacuumed areas.

    Second, using it as a weapon. There would not be radiation, just lots of light, because it isn't radioactive in any real sense. It doesn't leave any trace at all, just a large flash of light and then a hole where there used to be normal matter. You can't even detect anti-matter in its normal state since it doesn't emit anything. It would be like trying to detect hydrogen (easiest antimatter to make for obvious reasons).

    Now, the potential for a weapon is absolute. People will worry about that, since its so easy to make as long as you have antimatter. Just make the containment field turn off as soon as it hits. Its an understandably dangerous idea, but we have to realize that its this way with any power source. First, you learn to use it without control. Then you learn to control it to fuel a power source. Take fission. First the bomb. Later, nuke plants. Now fusion. We have hydrogen bombs, we are trying to make (controlled) fusion plants now. So first we use it as a weapon, then we learn how to control it (to make the Enterprise).

    Now, as a weapon, I can't imagine its the worst thing in the world. Only large, (presumably) responsible countries could make it. We have somthing close to its destructive power now with the H bomb, but this one would have no radiation afterward causing untold pain and suffereing from fallout. Just the initial flash. And we haven't used the H bomb yet, god-willing we will never use this. If the war ever comes and Mars attacks though, I would love to have something other than the common cold to fall back on.

    --
    "Risc is good..."
  123. Re:thank you bush by Loco3KGT · · Score: 0, Offtopic

    You can thank the Democrats for the lack of education though.

    liberal schools with no grades but "self confidence" a plenty and grades like " Math makes Katie :'( "

    --
    Blessed be he who reads this post, Cursed be he who tells my boss.
  124. expensive by mnemonic_ · · Score: 2, Insightful

    Antimatter is currently the most expensive substance on earth, at $1.75 trillion per ounce.

    And antimatter bombs have been proposed as far back as the 70s, but of course anything's "new" when the public hears about it regardless of when the ideas were first conceived. The militarization of space, super efficient warheads, "brilliant" weapons (as opposed to "smart"): all have been under thorough investigation by the USAF for decades. All have been underlying trends in military scientists' minds representing a natural progression in defense technology, with nothing extraordinary about them.

    All of those things, in today's sensationalist world, are perceived as indicators of the US military's suddenly new drive to take over the world, when in reality, there's nothing new about them. We all gasp when we hear about them, but to the aged scientists working at Edwards, it's all old hat. The USAF's overall plans haven't changed (though they certainly have progressed), only the public's perceptions.

    1. Re:expensive by jesdynf · · Score: 2, Funny
      Antimatter is currently the most expensive substance on earth, at $1.75 trillion per ounce.
      That's over four times as much as printer ink.
      --
      Yahoo! Pipes are awesome. How awesome? http://pipes.yahoo.com/jesdynf/slashdot
  125. obl star trek comment by Anonymous Coward · · Score: 0

    Can someone say "Fire Photon Torpedoes"?

    From what I recall photon torpedoes have nothing to do with photons but its rather an antimatter weapon

  126. Re:Antimatter weapons? How bad could they be? by Anonymous Coward · · Score: 0

    Man, given a choice, I'd prefer to go that way than, say, from having to eat rat droppings, force-fed to me by nuns wearing nothing but rat skins and monkey entrails.

    But that's just me.

  127. Re:Some things I don't understand about anti-matte by AoT · · Score: 1

    I think we could improve on that by putting the cat in a anti-matter box with a anti-matter vial of anti-matter-cyanide that will open depending on whether or not an anti-matter atom decays.

  128. erm... by evil_d51 · · Score: 1

    Correct me if i am wrong [which i may be since i havent been keeping up with the latest physics developments] but I though that anti-matter has only been produced for a minute fraction of a second and only a few atoms at that. I think we are a long long way off producing 1g ram that can be contained an utilised in a weapon. Give it 50-100 years and see how things are then... This is just speculative nonsense is it not?

  129. Re:The only problem is..... by TakaIta · · Score: 1
    Antihydrogen sounds nice. What about heavy antihydrogen, then you could make nice fireworks:

    1 normal H-bomb
    1 anti H-bomb

    both explode creating resp Helium and anti-Helium, which then reacts with each other.

  130. Re:I'm curious as to why Matter + Antimatter = Ene by monoi · · Score: 1

    The `anti-' name refers to the charge of the particle (electrons are assigned -1, positrons +1). So, when you say 1 + -1 = 0, you're right in the sense that e+ e- -> gamma, which is uncharged. However, the energy of the particles is always positive (negative energy/mass is not observed), so in that case E_a + E_b = E_a + E_b.

  131. Cheap irony alert by Strange_Attractor · · Score: 4, Funny
    The end of the article:

    Besides, Lynn is enthusiastic about antimatter because he believes it could propel futuristic space rockets. "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."
    Maybe if we lay off building the antimatter bombs...
    --

    ----
    WWJD...For a Klondike Bar?
    1. Re:Cheap irony alert by cbelt3 · · Score: 1

      OK, I call piffle. In fact, I'm tired of the entire riff here, starting with the article from the freaking San Fransisco newspaper (ooh yeah, like we'll get a lot of real scientific raionality from THAT source, thank you very much). I did RTFA. It was a lot of typical media hype. The people who actually new about the program were talking about the program in terms of propulsion, not explosion. The remaining 'expertniks' were all of the usual 'military evil, us good' weasels who wouldn't know research if it spit in their morning lattes. SO let's use a little logic, OK children ? 1- Tough to keep antimatter from meetings it's evil twin, matter. 2- lots of energy in a little bit of mass. 3- if you can squirt it into the containment trap slowly, you can squirt it out slowly. This sounds a hell of a lot like a very energetic solution for an ion drive, but instead of bombarding the reaction mass with electricity, they bombard it with antiprotons. Fast reaction, fast space travel, wheeee !

  132. Re:Antimatter weapons? How bad could they be? by LMCBoy · · Score: 1

    boilerplate sig troll response

    Thanks for playing!

    --
    Liberal (adj.): Free from bigotry; open to progress; tolerant of others.
  133. Dr Strangelove, I presume? by Thud457 · · Score: 1

    What possible foreseable threat requires these kinds of weapons over ones we already have? This just doesn't make sense. I smell some boys in the lab wanting to do some expensive science, sitting around thinking "we can tell them it's weapons research... yeah, that's the ticket!"

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

    1. Re:Dr Strangelove, I presume? by chris_mahan · · Score: 3, Funny

      What I meant was 1 burning library of congress should be enough to satisfy the current administration.

      --

      "Piter, too, is dead."

  134. And this is why... by Anonymous Coward · · Score: 0

    The United States of America is > YOU

  135. don't you see? by mattdm · · Score: 1

    Well, if *we* don't develop immensely expensive and nigh-impossible to store futuristic weapons in our cutting-edge laboratories and gargantuan particle accelerators, what's to stop a bunch of terrorists in a cave in Afghanistan from doing it?

  136. Get the knee pads ready by Anonymous Coward · · Score: 0

    I for one would like to welcome our anti-matter bearing conquerers

  137. Viola and voila are different. by twd · · Score: 2, Funny

    What do violas have to do with it? Did Stradivarius use antimatter to achieve his results?

    --
    ~*~ Tara
    1. Re:Viola and voila are different. by Anonymous Coward · · Score: 0

      I think it has something to do with antigreymatter.

    2. Re:Viola and voila are different. by pjt33 · · Score: 1

      You can't see the link between violas and weapons? Clearly you never had a sibling learn to play a stringed instrument.

  138. Good grief by rainman_bc · · Score: 1

    In soviet russia antimatter rules you!

    (argh I'm so darn sick of thse goddamn soviet russia posts)

    --
    09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
  139. Best comment from the article by icemax · · Score: 1

    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."

    --


    __________
    Love conquers all... except CANCER
  140. Impracticable and Expensive by picardsb · · Score: 1

    Nuclear weapons emit neutrons, some alpha particles, and mostly radiation. That is what is called "nuclear radiation". Now this nuclear radiation is nothing but gamma rays.

    The combination of matter + antimatter gives a gamma ray. Contrary to popular views, it does not vanish, but actually energy ins emitted. This is well exemplified as the 23 times the booster energy in rockets. However the radiation (energy) is also lethal, and is of the same nature as the thermoluclear radiation. There is no difference. So I don't understand when the author says "it's doesn't emit plumes of radiation"?! What radiation is he talking about? So theantimatter weapons would be as harmful in terms of radiation damage.

    Secondly - it requires billions to produce just one microgram of anti-matter. At present, antimatter costs $62.5 trillion per gram. You have to put in energy to produce antimatter. The amount of energy that needs to be later realeased. It's like you have 1 million dollar notes, and a credit card with the spending limit of 1 million. It's just a conversion into a form that is smaller. So it's not free energy, and the cost of making antimatter is huge! I don't think one would go and buy a million dollar hamburger, when he can buy a $1 burger kong.. So it's just fiction for the next 100 years - then something cheaper will come forth.

    1. Re:Impracticable and Expensive by Anonymous Coward · · Score: 0


      So it's not free energy, and the cost of making antimatter is huge!


      That's because the high cost of dealing with bloated governmental political programs.

      If private enterprise could just be allowed to make anti-matter I'm sure it would come in at ~$2.00/gal.

      What we need is a competition ... We could call it the ezirP-X. We would have commercially viable antimatter coming out of our ears in a few years.

  141. WMD by j0shwalk3r · · Score: 1

    I can see it now. HEADLINE: Bush was right! WMD's found in Iraq! One half of the material used to make an Anti-matter explosives with more power than nuclear weapons has been located by experts. Insider quoted as saying, "They were literally hiding it everywhere!" -They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. Benjamin Franklin

  142. Re:Since we can never stop fighting with each othe by Anonymous Coward · · Score: 0

    Since we can never stop fighting with each other

    you mean...

    Since America can never stop fighting with anyone who holds oil

    ???

  143. Re:Some things I don't understand about anti-matte by egomaniac · · Score: 3, Informative

    Would you have to store the anti-matter, or create it as you need it? The first seems impossible, unless you has some kind of containment where the anti-matter doesn't actually touch anything. The other requires a massive amount of energy. Is this even plausible?

    The only mechanisms we know of to create antimatter are UNBELIEVABLY power-hungry. The technology to manufacture even a mere gram of antimatter does not exist. So, the answer to your question -- we really have no idea. We can't manufacture meaningful amounts of antimatter at all, so the question of when it would get manufactured is something of a moot point.

    What about the radiation involved? We've measured the rays that result from minor, single-atom collisions, but what happens when the collision is actually big enough to damage something?

    IANANP (I am not a nuclear physicist), but I don't believe it would be significant. Nuclear weapons have two major sources of residual radiation (fallout): fission byproducts and induced radioactivity caused by neutron bombardment. Antimatter bombs wouldn't produce either. The radiation produced by a matter-antimatter reaction is high-energy gamma rays -- the explosion's extreme energy levels would probably manage to split or fuse a few atoms, and probably create very small amounts of radioactive material, but without fission byproducts or neutron flux you shouldn't see any large-scale radioactivity. The explosion would essentially look and behave just like a nuclear explosion (thermal pulse, mushroom cloud, shock wave, etc.) but without the fallout.

    How do you propel something like this? Magnets? Or am I wrong in assuming anti-matter can't touch anything?

    You are correct -- matter-antimatter collisions are bad news, and you can't allow the antimatter to touch any matter until the desired moment of explosion. Fortunately, antiprotons and antielectrons (positrons) are both electrically charged, and can therefore be magnetically contained in a vacuum to keep them from contacting any matter. A (very simple and dangerous) bomb design might be as simple as a containment shell with antimatter inside. You drop it on the target, the bomb ruptures and releases antimatter, BOOM.

    The real problem is that the failure mode of antimatter weapons (at least ones that relied on pre-manufactured antimatter) is so damned dangerous. If the circuitry in a nuclear weapon fails, no biggie -- the bomb just doesn't detonate. Even in the worst case all that happens with a nuke is leakage of radioactive material. In fact, even an accidental critical mass isn't enough to produce a large-scale explosion -- unless you contain everything just right it just doesn't give you a big blast.

    With an antimatter bomb, the opposite is true. You have to contain everything just right, because the second you don't, BOOM.

    --
    ZFS: because love is never having to say fsck
  144. It might be plausible. by secretsquirel · · Score: 0

    At first I envisioned like an anti-matter bomb and that seemed pretty far out; but could almost see the military being capable of producting an antiproton beam or something that would act like an ultra powerful laser by ejecting particles as they are made. It could save money to, if you just disintegrate the enemy then you don't have all that messy and expensive clean up, kill 2 birds with one anti-stone.

  145. beam weapons by Anonymous Coward · · Score: 0

    Why not use positrons as a beam weapon instead of an explosive? You could shoot them at near light speed and they'd make a great ABM weapon if located in space. I dare say you could deposit a lot more energy in a short amount of time than you could with a laser.

    Terrestrial use is more problematic because you have to worry about collisions with the air.

  146. Uh, it's still FOUO everywhere else but to you. by Polarism · · Score: 1

    Never heard of SBU, maybe only the USAF uses it, but i've been stationed with USAF folks and on their bases and i've never heard of SBU. ;)

    --
    All your base are belong to Google.
    1. Re:Uh, it's still FOUO everywhere else but to you. by sexylicious · · Score: 2, Informative

      USAF is still FOUO. The other levels are the same. There is also an unofficial classification that is used called sensitive. Basically, anything that reveals personal info is sensitive and treated as FOUO, even if it's not marked that way.

    2. Re:Uh, it's still FOUO everywhere else but to you. by Odin's+Raven · · Score: 2, Funny
      i've been stationed with USAF folks and on their bases and i've never heard of SBU.

      That's because the existence of the SBU classification is itself classified SBU. The grandparent poster has been detained and is currently "assisting authorities with their inquiries".

      Now, (/me puts on MIB sunglasses), if you and the rest of the /. readers would all look over here at this pen-like object in my hand...

      --
      A marriage is always made up of two people who are prepared to swear that only the other one snores.
    3. Re:Uh, it's still FOUO everywhere else but to you. by Polarism · · Score: 1

      If the existence itself was classified i'd sure as hell know about it seeing how high up the food chain I am.

      Might be a niche thing used only in certain bases/areas/whatever. Not doubting you, just saying it is nowhere near standardized.

      --
      All your base are belong to Google.
    4. Re:Uh, it's still FOUO everywhere else but to you. by IncohereD · · Score: 1

      USAF is still FOUO. The other levels are the same. There is also an unofficial classification that is used called sensitive. Basically, anything that reveals personal info is sensitive and treated as FOUO, even if it's not marked that way.

      Ah yes. In Canada there's "Protected A" (for who knows what) and "Protected B" (for personal records).

  147. Re:I'm curious as to why Matter + Antimatter = Ene by sexylicious · · Score: 4, Interesting

    It's a bit more than -1 + 1 = 0. In terms of net charge, you're correct. If you start with a particle and an anti-particle and get them to collide, you'll have no net charge left over.


    Now, there's that other part of matter called mass. There's the rest mass of a particle (the particle has NO kinetic energy). And there's the mass associated with velocity (E=mc^2 comes from this... Kinetec Energy = 1/2 * m * v^2).

    All the stuff that makes up the particles mass has an equivalent energy via E=mc^2. When you bring a particle and an anti-particle close enough that they react with each other, then the net charge of the two becomes neutral and the mass becomes so great that the new mass wants to find a more stable state. In order for the new mass to find a more stable state, it has to decay. (Now, the mass doesn't "know" or "think" about this, there are physical limits to the amount of mass that you can put into one particle.)

    Since the super-particle isn't stable, it breaks up into smaller particles. It just so happens that when you bring an electron and a positron (anti-electron) just close enough that they barely touch with no excess kinetic energy beyond what is needed to make them react, then you'll get a super-particle that instantly decays into two high energy photons (gamma rays).

  148. Because an explosion is 3-d by Anonymous Coward · · Score: 0

    I'd like to request units of Empire State Building or grand canyon.

    1. Re:Because an explosion is 3-d by ndogg · · Score: 5, Funny

      What? You have a problem with Footbal Fields Squared?

      --
      // file: mice.h
      #include "frickin_lasers.h"
    2. Re:Because an explosion is 3-d by Anonymous Coward · · Score: 0

      football field Squared is in the 4th dimension...

    3. Re:Because an explosion is 3-d by OzRoy · · Score: 1

      It's probably for this very reason that in the future they build Madison Cube Gardens

  149. Laptop Hours, a more useful unit of conversion by mykepredko · · Score: 4, Interesting

    Rather than equate it to Nuclear Bombs, space shuttle tanks, etc. how about how long a gram of anti-matter could run a laptop?

    I would expect that it's on the order of centuries which would make it very desireable, although having a potentially leaking anti-matter device on one's lap would make it very undesireable.

    myke

    1. Re:Laptop Hours, a more useful unit of conversion by iphayd · · Score: 1

      How many hours can this antimatter project run a laptop?

      About two. Three if you turn your wireless off and dim your screen.

    2. Re:Laptop Hours, a more useful unit of conversion by winse · · Score: 5, Funny

      Or imagine buying a motor vehicle that already has enough fuel to run it for the rest of its' usefull life. And then image that car getting into an accident and removing Cleveland.

      --
      this sig is deprecated
    3. Re:Laptop Hours, a more useful unit of conversion by vsprintf · · Score: 1

      Or imagine buying a motor vehicle that already has enough fuel to run it for the rest of its' usefull life. And then image that car getting into an accident and removing Cleveland.

      This is called mixed feelings. On one hand, no more Cleveland. On the other hand, no more Drew Carey or Mimi. Decisions, decisions . . .

    4. Re:Laptop Hours, a more useful unit of conversion by metaomni · · Score: 1

      You owe me a new keyboard.

    5. Re:Laptop Hours, a more useful unit of conversion by mikefe · · Score: 1

      Hours?!

      With a Pentium 55 it wouldn't last five minutes!

      --
      There: Something at a specific location.
      Their: Owned by someone.
      Please make sure your english compiles.
    6. Re:Laptop Hours, a more useful unit of conversion by Nate+Eldredge · · Score: 1

      So what's the downside?

    7. Re:Laptop Hours, a more useful unit of conversion by Dusabre · · Score: 1

      1 g would have the energy content of a a mid-sized H-bomb. You could run your laptop for a little longer than a couple of centuries.

    8. Re:Laptop Hours, a more useful unit of conversion by clambake · · Score: 1

      1 g would have the energy content of a a mid-sized H-bomb. You could run your laptop for a little longer than a couple of centuries.

      Linux users...

  150. Weapons first, advancement of civilisation second by l0ungeb0y · · Score: 1

    Funny how military applications get the first use of new technology.

    The refrigerator was an invention first used in naval vessels long before anyone thought of putting them in the home.

    Of course, nuclear fission was also a military technology before they got to work making it a source of energy rather than one of mass destruction.

    CDMA was first implemented by the US military several decades before any civilian application. ...and the list goes on.

    Seem that even though any practical use of antimatter is still far off, it would have a dramatically more profound impact on society as a whole if it were used as an energy source for a spacecraft rather than "yet another gun" to point at our heads.

    But, the rational of fear and destruction always trumps the need for man to advance the whole of mankind. If the article is indeed correct about the mass/energy ratio, antimatter looks like a means to finally be able to colonize other rocks in our solar system and increase the changes of our civilization surviving a man-made or natural cataclysm.

  151. Re:[little john] WHAT? [/little john] by mreed911 · · Score: 1

    A gram of antimatter would cost almost more money than exists on earth if I recall.

    When you consider that the money itself it worthless without the work that goes behind it (people producing things that other people want/need), I'd hardly be willing to believe that the amount of money (measured as time paying people to productively create 1 gram of antimatter) would be anywhere near infinite. It might be more than exists on earth today, but that's only because the value is high and the work "hard", comparatively.

  152. Wrong warriors, wrong workplace, wrong spacetime by Doc+Ruby · · Score: 3, Insightful

    Antimatter research is extremely valuable science. Insight into the mechanisms of anti/matter annihilation, and its total (or nearly) conversion to energy, will inform science from nuclear energy to nano (femto?) tech and beyond. It's best performed in space, away from the rest of the world which it can contaminate with either annihilable (anti)material or radiation from the reaction. But budgeting the Air Force to make bombs out of it is insane. We've already got expensive ginormous bombs that scare everyone silly, and send the craziest of us into terrorism to compete. How about we just shift that Pentagon budget across to NASA? That will satisfy the aerospace bribers^Wlobbyists who are pushing this stuff, but keep them serving a sustainable market.

    --

    --
    make install -not war

  153. Honestly... by jeephistorian · · Score: 1


    ...does antimatter really matter?

    ____________

    --
    Huh?
  154. Actually, fellow physicist... by Anonymous Coward · · Score: 0

    Iraq is too far away. We've found a much more convenient place to store all of our anti-matter!

  155. Re:From An Anti-Matter Researcher +10 Patriotic by Anonymous Coward · · Score: 0

    he was appointed by the Florida Supreme Court, not the U.S.

    Just a minor technicallity, as he was appointed and not voted into office...... hopefully that will be rectified in about 4 weeks..... vote Kerry!

  156. 16 times the complete arsenal by ArcticCelt · · Score: 1
    So if we fill a container with 500 kilograms we roufly have 19 500 megatons and that is 16 times the complete arsenal of nuclear weapons of the US(1200 megatons).

    Now the real question is how much do we need to blow up the whole planet with one single bomb?

    Or how much for a "Novabomb?"

    --

    Yahh, hiii haaaaa! -Major Kong, from Dr. Strangelove
  157. Units by wowbagger · · Score: 2, Funny

    This raises an interesting question: why aren't "units" like "Library of Congress", "VW Bug", and "human hair" included in the "units" program?

  158. ____ factor 10. by Hobadee · · Score: 1

    Why don't they research something useful instead, like warp engines. Then we can make a test flight in time for the vulcans to detect it and come and be friendly with us. Then we can work on cool weapons, like photon torpedos and phasers.

    --
    ...Had this been an actual emergency, we would have fled in terror, and you would not have been informed.
  159. Re:[little john] WHAT? [/little john] by Anonymous Coward · · Score: 0

    [little john] OKAY! [/little john]

  160. A stargate is.... by Anonymous Coward · · Score: 0

    A star-gate is the entryway into Amanda Tapping's estate.

    It's purpose is to keep drooling /.'ers and other nerds at bay.

  161. Re:[little john] WHAT? [/little john] by modoquasi · · Score: 1

    comets made of pure antimatter come on. Everyone knows comets are made of impure antimatter. Comets are made of antematter (the state matter is in before it's matter) and promatter (very experienced matter--similar to slashmatter, which is what I use to wipe) along with some antimatter with a dash of parme-sahn cheese.

  162. Gag Order by AnalogDiehard · · Score: 1

    "Captain (cough) the anti(gag)matter core (gag) is (gag) collapsing (wheeze) have to abandon (gag) weapons control (hack) can't (gag) breathe (gaaaggg)"

    --
    Eternity: will that be smoking, or non-smoking? I Corinthians 6:9-10
  163. Re:[little john] WHAT? [/little john] by Anonymous Coward · · Score: 0

    Man, you don't really understand economy. Antimatter is expensive because there is virtually none of it available. Once someone finds out how to produce and store it in bigger amounts, prices will go down like SCO shares.

    I mean, aluminum was much more expensive then gold when it was a new discovery. If you were about to travel in time to year 1850, take a cheap aluminum spoon with you. You can probably get a good price on it ;).

  164. Re:Da Vinci by Anonymous Coward · · Score: 0

    Is that as predictable and uninteresting as his more popular works?

  165. Re:"23 space shuttle fuel tanks" and the "gag orde by Anonymous Coward · · Score: 0

    This isn't really that interesting or even unusual: Uncle Sam frequently limits what military folks can say about ongoing projects. There is a classification called "Sensitive But Unclassified", or SBU, whcih means the info is not classified as such (Secret, TS, etc.) but it is still not for public disclosure. (Years ago SBU was called "For Official Use Only" or FOUO.

    /been in and still in the USAF

    There is no official classification called "SBU", only FOUO. I have never seen or heard of "SBU", and I've authored documents up to TS/SCI. Also, there is no such thing as a Air Force-wide gag order. Where did you serve? How long ago? Please mod parent down.

  166. Re:"23 space shuttle fuel tanks" and the "gag orde by dr_dank · · Score: 1

    1 gram of antimatter would equal 23 space shuttle fuel tanks of energy.

    I thought the standard unit of explosive power was the ton of dynamite.


    The Air Force has changed to the Challenger scale quite some time ago.

    --
    Where does the school board find them and why do they keep sending them to ME?
  167. A logical progression... by Mycroft999 · · Score: 1

    If you consider that a primary goal of both weapons research and propulsion research is concerned with fitting more energy into a smaller package, then it all makes perfect sense.

    If the given quantity of anti-matter can, with its included containment system, occupy less space and weigh less than another type of energy source. Then it will definatly be advantageous to use it. The rest is simply a matter of implementation.

    My greatest concern is storage. How do you make something so inherently destructive safe to store in any usable quantity.

  168. Finally!! by Anonymous Coward · · Score: 0

    A clean way of eradicating volumes of arabs without harmful radiactive contamination.

  169. Crater interior decorating by Rares+Marian · · Score: 1

    Where would you like the crater?

    Over there. Kaboom!
    Er no. Over here. Kaboom!

    --
    The message on the other side of this sig is false.
  170. Re:Some things I don't understand about anti-matte by WillWare · · Score: 3, Funny
    ...seems impossible, unless you has some kind of containment where the anti-matter doesn't actually touch anything.

    Don't worry, we've got it covered. You ever see one of those aerodynamic trick gadgets where a balloon is suspended in an updraft from a fan? You push the balloon to one side, it recenters itself over the fan.

    Now take out the balloon and put in a blob of antimatter. If the antimatter is too heavy to float in the breeze, duct-tape the antimatter to the balloon.

    --
    WWJD for a Klondike Bar?
  171. Imagine... by GeneralEmergency · · Score: 1


    ...Anti-matter suicide bombers.

    Destroy Manhattan with a device the size of a handbag.

    No wonder why the Air Force turned on the "Shut-the-Hell-up" light on.

    --
    "A microprocessor... is a terrible thing to waste." --
    GeneralEmergency
  172. When the hell did we get that? by Zoc_All_Alone · · Score: 1

    "a powerful positron-generating accelerator under development at Washington State University in Pullman, Wash"

    Whaa?? I've been going to school here for three years, and I haven't heard about them building that. Where is it hidden, The New Johnson Hall Addition?

    We're a land grant school, damnit! We're supposed to be researching wheat or something!

    (One interesting note is the rumor of living cows with fiberglass panels attached to their sides. No one has confirmed this secret program)

    1. Re:When the hell did we get that? by Anonymous Coward · · Score: 0

      Any particular reason why you took out time and effort to post that offtopic drivel about your third rate university?

    2. Re:When the hell did we get that? by Crash6-24 · · Score: 1

      Johnson Hall at the University of Washington (in Seattle) is also undergoing removation. Maybe the powerful positron-generating accelerator is hidden there?

  173. Leave iut to the military by Anonymous Coward · · Score: 0

    to attempt to create weapons from optic ganglea of small, common social insects.

  174. Standard Units? by bunratty · · Score: 1, Funny
    1 gram of antimatter would equal 23 space shuttle fuel tanks of energy
    But what I want to know is how many libraries of congress could it blow up?
    --
    What a fool believes, he sees, no wise man has the power to reason away.
  175. Anti-Big Bang Theory... by bergeron76 · · Score: 0, Offtopic

    Ok, so I have a theory that this could become the anti-big bang. The antimatter and matter collision causes an instability in the universe and rather than it contract back into itself, the antimatter instability would create a "chase" big-bang.

    Consider this: the universe is growing at an infinite rate; we know this. An antimatter Big Bang originating on Earth would most likely be offset from the origin point of the original Big Bang. Thus, eventually at some point (assuming it grows in a circular fashion) the two points would intersect. My prediction is that this intersection causes the Anti-matter and true matter to scatter all over the place and a new Big Bang begins - ad infinitum (or ad nauseam depending on your state of mind).

    --
    Don't think that a small group of dedicated individuals can't change the world. It's the only thing that ever has.
    1. Re:Anti-Big Bang Theory... by Anonymous Coward · · Score: 0

      Smoke another one.

  176. Re:[little john] WHAT? [/little john] by jthayden · · Score: 1

    "This is insane. A gram of antimatter would cost almost more money than exists on earth if I recall."

    Dude, thats easy, we just have the Federal Reserve print up a few extra of those sexy new Benjamins.

  177. Good thing? No! by Barlo_Mung_42 · · Score: 1

    "As depressing as it sounds, this is probably a Good Thing"

    This is not a good thing. One thing that keeps us from using WMDs again is that we saw how terrible they are. If we make them just as deadly but less destructive they will appear to be less terrible and the blood thirsty powers that be will have less hesitation to using them.

  178. Ding! by mikeee · · Score: 5, Insightful

    I think you've got it. Consider that space shuttle.

    It's something like 95% fuel by weight on takeoff. Now, if your engines are burning antimatter, you can replace all that weight with payload and still reach orbit!

    If the antimatter could be manufactured for a reasonable multiple of the energy cost, it would cause the cost of getting stuff into space to drop dramatically.

    1. Re:Ding! by delibes · · Score: 1
      If your engines are 'burning' antimatter, it'll be really difficult to get useful thrust out of them, since it's likely the matter-antimatter reaction will produce a large amount of fairly nasty radiation. It might be possible to trap the radiation and use it to heat up and vapourise some normal matter in order to produce thrust, but you'd want to do it in deep space for interstellar travel, not in the Earth's atmosphere which we all need to breathe.

      Whilst any space shuttle replacements would benefit from improved efficiency fuels, the real cost savings will be from more efficient maintenance and ground systems. Once the orbiter lands back on Earth, the time and cost to turn it around and launch again is currently far too much.

      --
      This is not a sig
    2. Re:Ding! by Anonymous Coward · · Score: 0

      Well, the only problem with that is all you get out of the matter-antimatter reaction is high energy gamma rays. You still would need to push some reaction mass out the back end. Granted, you could push a little mass a lot faster than we currently can with chemical rockets (the hydrogen/oxygen reaction the shuttle uses in the SSME's with an ISP of ~455 is about at the peak of chemical efficiency).

      Also this would result in irradiated astronauts since sheilding from gamma rays requires a lot of bulk matter.

    3. Re:Ding! by phlegmofdiscontent · · Score: 1

      That's IF antimatter can be manufactured cheaply, which I highly doubt. I think it would be far better to spend the money that it would take to produce a microgram of antimatter and spend it on a space elevator instead.

    4. Re:Ding! by Anonymous Coward · · Score: 0

      But the moment that the manufacture of antimatter ceases to be a hard problem (i.e., an expensive proposition), we've got a lot more to worry about than cheaply reaching orbit... Of course, once cheap antimatter is available, I suppose it'll be a race to get the hell away from everyone else, and cheap spaceships might be the ticket.

    5. Re:Ding! by Tablizer · · Score: 1

      Consider that space shuttle. It's something like 95% fuel by weight on takeoff. Now, if your engines are burning antimatter, you can replace all that weight with payload and still reach orbit!

      Yes, but catastrophies get significantly nastier.

      Today: "Houston, we found a problem."

      Tomorrow: "Problem: we lost a Houston."

    6. Re:Ding! by mikeee · · Score: 1

      Radiation is not the same as radioactivity. I wouldn't necessarily want to be near the thing on takeoff, but there wouldn't likely be much residual radiation.

      Maintenance is hard partly because it's just barely possible to build a space rocket with chemical fuels. With much higher ISP, you can build a much more robust and maintainable rocket.

    7. Re:Ding! by stealthcat42 · · Score: 1

      Now we know how those sneaky engineers got SpaceShipOne into orbit....

  179. Don't you know anything? by Sgt+York · · Score: 1

    I you have a goatee, *you're* the evil twin. Your cleanshaven counterpart is the good guy.

    --

    There is a reason for everything. Sometimes that reason just sucks.

    1. Re:Don't you know anything? by coaxial · · Score: 1

      I[f] you have a goatee, *you're* the evil twin. Your cleanshaven counterpart is the good guy.

      Just because he's the "evil twin" doesn't mean, that his cleanshaven counterpart is a good guy. See the Spooky Fish episode of South Park. As Stan said to the the goateed Evil Cartman, "You know Evil Cartman, I like you better than our Cartman.".

  180. You have been dupped! by Anonymous Coward · · Score: 0
    Guys, come back to the real world. There are no such things as klingon's (well maybe in the toilet), romulan's, ancients, etc.. It is FICTION. So is this mythical anti-matter. How do I know? Glad you asked. If it did exist don't you think we would see evidence of it while looking into space? We see nuclear reactions all over the place - our own sun for example. All they have is a theory. Even if it does exist it is highly doubtful that it would contain that much energy.


    If it did, somehow the place it would be found would be the middle east.

    1. Re:You have been dupped! by Mongo222 · · Score: 1

      Put down the crack pipe Beavis.

      After the first couple of minutes of existence the only type of matter left in the universe was normal matter. New antimatter isn't going to just appear out of no where, it has to be made in a particle accelerator.

      Star Trek didn't invent the concept of antimatter. Star Trek was created in 1966, the existence of antimatter was known back in the 1930's. Trek's writers used it as a fantastic plot device to create an awesome sense of power of a star ship.

      It's been created many times in many laboratories.
      That doesn't mean it's practical. There is a difference between creating 20 antiprotons in a lab, and creating a grams worth of them.

      But I'm sure I'm wasting my time, you're probably still having problems explaining how NASA faked the moon landing.

    2. Re:You have been dupped! by Geoff+St.+Germaine · · Score: 1

      As pointed out, antimatter is very real. It is created all the time. Anti-electrons (positrons) are created in nuclear decay happening all the time. They exist in nuclear reactors. Anti-protons are created in particle accelerators such as CERN and the one at Fermilab. As for space, there is something in the standard model of particle physics called Charge-Parity (CP) violation, which is an asymmetry in the creation of matter. Basically, in the early universe for every 1 billion proton-antiproton pairs created, there is one excess proton created. After all the other pairs annihilate, we're left with the observable normal matter universe that we see today. This CP violation has also been experimentally concerned. In fact, all particles have an antiparticle. Some are in fact their own antiparticle, such as a photon and the Zo boson, in that their properties are such that there is no opposite. And in fact, a matter-antimatter annihilation would convert all of their mass into energy. This is commonly seen in particle accelerators, as the energy release is a pair of gamma ray photons of very specific enerygies. How do I know? Well, I'm a physicist.

  181. Go the opposite way by PontifexPrimus · · Score: 1

    Just as a thought - why advance military technology at all? Just get the soldiers of one side, the soldiers of the other side and let them fight it out in a big arena. Give 'em sticks and stones if you feel generous. Result: one clear winner, no civilian casualties and collateral damage and nearly no monetary expense. Would make for better television, too.
    Seriously: do we really need better and better tools to kill?

    --
    -- Language is a virus from outer space.
    1. Re:Go the opposite way by Anonymous Coward · · Score: 0

      This relies on both sides placing complete trust in the other side.

      So why would they be at war in the first place?

      You might as well say, "wouldn't it be better if there were no wars?"

    2. Re:Go the opposite way by Anonymous Coward · · Score: 0

      Consider the facts of human nature. It might work the first few times, but after a couple of tries you'd get a sore loser, who would refuse to accept the results, and would arm a bunch of 'civilians' and try to go beat an apology out of the victor. Bam. You're back to square one.

    3. Re:Go the opposite way by RobertB-DC · · Score: 1

      It might work the first few times, but after a couple of tries you'd get a sore loser, who would refuse to accept the results, and would arm a bunch of 'civilians' and try to go beat an apology out of the victor. Bam. You're back to square one.

      Or, you have Captain Kirk sail into orbit, have his ship declared "destroyed", and then stubbornly refuse to enter the execution chamber. Happens every freakin' time.

      --
      Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
  182. Bush Wins!!! by alokeb · · Score: 0

    Guess Bush finally found his WMD... In other news Saddam Husein starts dancing hysterically in his cell...

  183. Pointless. Maybe to you Leftist Peaceniks... by Saeed+al-Sahaf · · Score: 0, Flamebait
    Exactly what military threat do they envision where they need a bigger "boom" than what they have now?

    It's not the "bigger boom", it's the dirty fallout that takes a lot of "freindlies" allong with the boom. Remember the neutron bomb PR fallout? Kills animal life but leaves economically valuble facilities intact? The Air Force would like to avoid that, we kill the Evil Doers, destroy the facilities, while avoiding nasty radioactive fallout.

    --
    "Who are in control, they are not in control of anything - they don't even control themselves!" - Glen Beck
    1. Re:Pointless. Maybe to you Leftist Peaceniks... by Anonymous Coward · · Score: 0

      It's not Flamebait, it's how the AF thinks, idiot. How is it that children who can't think get mod points? Oh, that's right, Michael's in charge!

    2. Re:Pointless. Maybe to you Leftist Peaceniks... by qeveren · · Score: 2, Informative

      Not quite true. The neutron bomb was actually developed as an anti-armor technology, because tanks and their ilk are very resilient when it comes to 'normal' nuclear blasts. The fast neutron radiation from neutron bombs is excellent at penetrating armor and killing the crews of such vehicles. Unfortunately, the blast radius is roughly equivalent to the lethal radiation radius, so infrastructure still tends to be creamed by the blast. :)

      --
      Don't just stand there, get that other dog!
  184. anti-matter..? by jspectre · · Score: 1

    does that mean it just doesn't matter?

    --

    abcdefghijklmnopqrstuvwxyz

  185. Did we all miss the comment at the end? by llamalicious · · Score: 1

    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."

    hear fucking hear.

    When a technology is being actively researched for its primary possible use as a weapon, is it time to perhaps re-think? Maybe primarily researching its potential as an alternative energy source...

    1. Re:Did we all miss the comment at the end? by d474 · · Score: 1
      "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."
      That comment was unsettling. Here is a guy who is a physisist in charge of Washington State's Center for Materials Research, and he's saying this kind of crap? Isn't that sad? Instead of trying to figure out ways to sustain the ecologies of our planet, we just try to figure out how to leave it. What's the point? We'll just land on some other planet and fuck that one up too. Secondly, if the aim is to land on Mars and terraform it, why go through all the trouble!!?? We already have Earth! Talk about a "throw away" economy.

      Sometimes I really wonder it means to be "intelligent", because the more humans try display intelligence, the more they seem to prove we lack it.
      --
      Authority questions you. Return the favor.
  186. Gag order on funding? by ljavelin · · Score: 1

    Does this mean that the American people have to trust the pentagon with hundreds of billions of dollars per year for secret research for secret weapons given to secret companies?

    I -want- to be a defense contractor!

  187. The Plan by vjmurphy · · Score: 1

    I hear the military plan is to create Anti-Matter duplicates of all their targets, the have them meet.

    --
    Vincent J. Murphy
    Spandex Justice
  188. Harvesting antimatter? by cryptochrome · · Score: 2, Interesting

    So generating antimatter directly using current methods would be extremely expensive. More importantly, given how much energy it "contains" (via matter-antimatter annihilation), and assuming you need even MORE energy to generate it, the energy requirements would be prohibitive at best and simply unavailable at worst.

    But what about harvesting antimatter? Isn't it present in cosmic rays and radiation? A large electromagnetic bubble could be used to filter out antiprotons and slow it down until it is united with positrons in a trap and stored. Since you're working in a hard vacuum, containment is less of an issue and your fields and machinery do not need to be sealed tight. It's just a variation of a bussard ramscoop. Of course it would have to be very large.

    Generating antimatter requires massive amounts of energy. So why not go to the most naturally energetic object around - the Sun? Either make a factory designed to operate in close proximity to the sun and use the energy to make antimatter directly, or attempt to capture the naturally generated antimatter from the sun in some fashion. I am not an expert, but I presume at least some of the solar wind and certainly some of the solar atmosphere is composed of antimatter.

    --

    ---If you can't trust a nerd, who can you trust?

    1. Re:Harvesting antimatter? by kippy · · Score: 1

      Either make a factory designed to operate in close proximity to the sun and use the energy to make antimatter directly, or attempt to capture the naturally generated antimatter from the sun in some fashion.

      And this is the cheap way to do it? :)

    2. Re:Harvesting antimatter? by cryptochrome · · Score: 1

      High initial expenditure, but potentially large returns. Assuming it can be done. Which I don't know.

      --

      ---If you can't trust a nerd, who can you trust?

    3. Re:Harvesting antimatter? by Graff · · Score: 1
      But what about harvesting antimatter? Isn't it present in cosmic rays and radiation?

      Not really. Very small amounts of antimatter are occasionally created when an energetic particle such as a cosmic ray hits another particle, but the amounts are next to nothing and are extremely rare in nature.

      For the time and effort it would take to collect these rare bits of antimatter you would probably be better off going the high-energy route.
  189. Re:thank you bush by Anonymous Coward · · Score: 0

    gotta love these ignorant jackasses who have to blame Bush for everything. What a nimrod.

  190. Re:Some things I don't understand about anti-matte by Anonymous Coward · · Score: 0

    Why do you say sci-fi? This has been going on for decades in the particle physics community, and the Penning traps used fit on the back of a pickup truck.

  191. Sounds like rocket fuel to me. by Anonymous Coward · · Score: 0

    I think they're most likely trying to make rocket fuel in a highly compact form. In other words, how much power can we contain in the smallest, lightest package possible?

    Just like any other rocket fuel, you spend the energy here on earth to refine the fuel so you can give a vehicle the most lifting power possible.

    Then the comparison to space shuttle fuel tanks would make sense.

  192. Re:Some things I don't understand about anti-matte by Garse+Janacek · · Score: 1
    Would you have to store the anti-matter...

    Well, obviously. In the anti-matter containment fields. But be careful, because all hell breaks loose if the containment field gets out of alignment -- your warp drive is unlikely to function at full efficiency, and if things get bad enough it can lead to a full warp core breach. But that only happens every three or four episodes, and is usually averted at the last minute anyway, so we shouldn't have anything to worry about.

    --

    I am the man with no sig!

  193. wouldnt it be far cheaper.... by RagingChipmunk · · Score: 1

    Wouldnt it be far cheaper for the US millitary to pay $500 to every paradise seeking suicide-bomber to go blast each other? In that line of thinking, 150lb of lard-ass idiot + 2000lbs of old chevy has a more effective yeild then 20kg of Plutonium, and there's no radition fallout.

    --
    The only PT Boat Journal on the web: http://www.PT171.org
    1. Re:wouldnt it be far cheaper.... by Anonymous Coward · · Score: 0

      It would be cheaper for the US to stop proping up rouge states like Israel that is the cheif cause of problems in the middle east. The US pays $30,000 per Israeli citizen in ammount of military aid money it gives to Israel.

      How many countries in the middle east loathe Israel? All of them.

      Seems like a rather simple solution to this "terrorism" problem to me.

  194. Re:Some things I don't understand about anti-matte by sexylicious · · Score: 1

    Some salt crystals have been theorized to be able to hold an atom of anti-hydrogen in the crystal lattice.

  195. Shuttle Fuel *Replacement* by Anonymous Coward · · Score: 0
    What an awesome fuel for the space shuttle, though.


    Just think of the orbital spaceplane with an engine smaller than your laptop battery!


    I think this is an incredible spin-off technolgy if they can pull it off.

  196. It's about time! by fsck! · · Score: 1

    This is exactly the kind of stuff that will save us from those nasty terrorists!

    And this is also great because we need more junk who's default and only mode of operation is "annihilate" floating around.

    Way to go!

  197. Idiot. by Anonymous Coward · · Score: 0

    You'd never find antimatter here on earth because as soon as it comes in contact with matter, they would obliterate each other. Same goes for space.

  198. Re:"23 space shuttle fuel tanks" and the "gag orde by Anonymous Coward · · Score: 0

    The research may not be related to explosives, but propulsion, hence the fuel tank equivalent.
    If this were the case, and assuming its practical, it could make the space elevator unnecessary.

  199. Re:I'm curious as to why Matter + Antimatter = Ene by Enigma_Man · · Score: 1

    Thank you kindly aah... sexylicious. That was the missing keystone. I'm just brain-weary from staring at my screen all day, dealing with CSS (and I'm an EE, how'd this happen?).

    -Jesse

    --
    Nothing says "unprofessional job" like wrinkles in your duct tape.
  200. Plutonium by wowbagger · · Score: 5, Interesting

    Actually, you can hold a chunk of plutonium in your hand with little side effect.

    When the plutonium core of the Trinity device was delivered to the site, the commander insisted that the courier open the case containing it - he said something along the lines of "I won't sign for anything unless I have actually seen it".

    So, the courier opened the case, the BC took the sphere out, held it briefly (noting the warmth and "feeling of potential"), then returned it and signed for it.

    Go read "The Day The Sun Rose Twice" for the details.

    1. Re:Plutonium by upsidedown_duck · · Score: 1


      I'd recommend washing up afterwards, though. The thought of ingesting plutonium isn't very appealing.

      --
      -- "Makes Little Debbie look like a pile of puke!" - Moe Szyslak
    2. Re:Plutonium by Diamoddavej · · Score: 5, Interesting

      Tell that to Harry Daghlin. During a partial criticality test just after the war, a core slipped during a test and went full critical. Harry had to knock one of the two plutonium hemispheres apart by hand. He saw a blue flash, Harry was that quick but it was not quick enough. He died 25 days later.

      Harry's right hand http://www.nmol.com/users/billp/daghlian.jpg

    3. Re:Plutonium by Clothist · · Score: 2, Interesting

      That's a different situation altogether, though. It doesn't matter HOW stable it is in normal situations, you still don't want to be anywhere near a criticality event!

    4. Re:Plutonium by CritterNYC · · Score: 5, Interesting

      Tell that to Harry Daghlin. During a partial criticality test just after the war, a core slipped during a test and went full critical. Harry had to knock one of the two plutonium hemispheres apart by hand. He saw a blue flash, Harry was that quick but it was not quick enough. He died 25 days later.

      Actually, it is Harry Dahlian for those who want to learn more about it.

    5. Re:Plutonium by CritterNYC · · Score: 1

      Actually, it is Harry Dahlian for those who want to learn more about it.

      Alright, my beyboard is working against me, too.... it is Daghlian.

    6. Re:Plutonium by fozzy1015 · · Score: 2, Interesting

      Plutonium gives off alpha radiation. It doesn't penetrate skin but if you inhale or ingest a very tiny amount it will kill you. In the lungs it will cause massive fibrosis. In the blood stream it follows the same pathway as calcium and will destroy bone marrow.

    7. Re:Plutonium by Bull999999 · · Score: 1

      Below is the account of what happend. I think that effects of a tungsten carbie brick hitting a plutonium core is quite different than a plutonium core hitting your toes. I still wouldn't want to mess with it tough.

      On August 21, 1945, Daghlian was accidentally irradiated while performing a critical mass experiment at the remote Omega Site laboratory in Los Alamos, NM (Manhattan Project/Project Y), when a tungsten carbide brick fell from his hand onto a plutonium core.

      --
      1f u c4n r34d th1s u r34lly n33d t0 g37 l41d
    8. Re:Plutonium by Muhammar · · Score: 5, Informative

      Here you mixed details from 2 related stories: Daghlian accident during the war and Slotin accident after the war. The accidents happened with the same plutonium sphere. Slotin was boss of Daghlian and saw him dying. He had very similar accident and died in the same hospital room 9 months later. This Pu sphere was stored for safety reasons as 2 separate hemispheres and these were put together before experiment. The accidents were caused not by combining the Pu hemispheres but by surrounding them with neutron reflector which turned the system critical.

      Daghlian was trying to find the practical (=just barely subcritical) arrangement of cube of tamper material (tungsten carbide) which would be completely surrounding a solid 6.2 kg sphere of delta-phase of Pu239. The carbide bricks functioned as neutron reflector also. Daghlian was working very slowly as he was getting close to critical configuration (neutron reflection increased reactivity). One of the heavy bricks felt out of his hand - on top of the Pu sphere and the system went critical. Daghlian trew the brick quickly away and disasembled the system into more strable configuration, etc. He got just above letal dose so he was dying very slowly.

      Slotin was demonstrating for his colleagues reactivity of Pu depending on reflection of neutrons from berylium cover (Be holow hemispheric cover surrounding Pu sphere which was sitting half-embeded within another large Be hemispheric stand). The Be cover slipped, enclosed the Pu sphere, the system went critical, there was flash, Slotin took it apart with his bare hands (to save his colleagues) and got huge dose which killed him few days later.

      --
      I doubt that we will ever figure out - and I suspect that even if we did figure out we couldn't do much about it
    9. Re:Plutonium by Anonymous Coward · · Score: 0

      Your "beyboard"?

    10. Re:Plutonium by iamacat · · Score: 2, Funny

      Wow, killer helium that finishes you off if you inhale or digest it. Almost as bad as Dihydrogen Monoxide.

    11. Re:Plutonium by Pig+Hogger · · Score: 2, Interesting
      Actually, you can hold a chunk of plutonium in your hand with little side effect.
      When the plutonium core of the Trinity device was delivered to the site, the commander insisted that the courier open the case containing it - he said something along the lines of "I won't sign for anything unless I have actually seen it".
      So, the courier opened the case, the BC took the sphere out, held it briefly (noting the warmth and "feeling of potential"), then returned it and signed for it.
      The US Navy has developped a diving suit that is heated by plutonium decay.
      It is not very popular amongst divers...
    12. Re:Plutonium by fozzy1015 · · Score: 1

      They are helium nuclei. They are large and can't penetrate a piece of paper, but inside the body they can do very real damage.

    13. Re:Plutonium by iamacat · · Score: 1

      You would however have trouble inhaling or injesting them before they attract those pesky electones. I do believe you referred to eating plutonium and to alpha particicles not penetrating skin, but then you can not refer to both of them as "it" in the same sentence :-)

    14. Re:Plutonium by CritterNYC · · Score: 2, Funny

      Your "beyboard"?

      Ummm... exactly.

  201. Re:Some things I don't understand about anti-matte by Glog · · Score: 1

    Anti-matter can't touch matter.. but you can build anti-matter containments.. even devices, but I suspect we are very far from this, as it takes a lot of anti-matter to create something on such a large scale.


    Hrmm, I suspect you'll want to create an Anti-matter universe around your anti-matter containing anti-matter container?
  202. Actually by Genady · · Score: 2, Informative

    you cannot go out and mine anti-matter. Why? Mostly because if there were any antimatter around, it would have a nasty tendency to interact with all that matter and be converted to energy.

    Ummmm... actually... there's plenty of anti-matter around. It's everywhere actually, poping into an out of existance all the time on a quantum scale. The tricky part is botteling it before it annihalates with the virtual matter particle that was spontaneously created with it.

    Still, I bet you could get more bang out of evaporating quantum black holes. You just need a Tevatron to make them.

    --


    What if it is just turtles all the way down?
  203. If you have a big enough bomb by Anonymous Coward · · Score: 0

    Who needs to know what the target is or where it is? With a big enough bomb, you're sure to get it the first time around:P

  204. It's *anti*-matter by Serious+Simon · · Score: 1
    1 gram of antimatter would equal 23 space shuttle fuel tanks of energy

    that should be, of course, -1 gram

    1. Re:It's *anti*-matter by BobaFett · · Score: 1

      Actually, no, it would still be 1 gram:
      if you drop it, it will fall down, not fly up (positive gravitational mass)
      if you push it, it resists the acceleration, not accelerates faster than you pushed it (positive inertial mass).

    2. Re:It's *anti*-matter by detlev409 · · Score: 1

      Too bad if you push it, it will blow off your finger...

      --
      Howdy.
  205. More Pentagon Bullshit by Un+pobre+guey · · Score: 2, Insightful
    The leak was probably deliberate, in the long and hallowed Pentagon tradition of disseminating disinformation to make gullible Third World generals think the US has awesome Spielbergian weapons systems. How much would it cost to actually produce sufficient weapons grade antimatter to put in a bomb? How would it be stored, transported, and delivered? How do you guard against accidents?

    Wake up, folks. It's bullshit.

    1. Re:More Pentagon Bullshit by Anonymous Coward · · Score: 0

      No no no... you Slashdot conspiracy theorists can't have it both ways. "The Pentagon has all sorts of creepy stuff that they don't tell us about" vs "The Pentagon is intentionally leaking information about non-existant projects just to scare everyone".

    2. Re:More Pentagon Bullshit by Un+pobre+guey · · Score: 1
      I never say "The Pentagon has all sorts of creepy stuff that they don't tell us about." My claim is that the Pentagon pretends to have all sorts of creepy stuff that they don't tell us about, but a key part is the need to tell us about it.

      Not unlike Dr Strangelove yelling at the Russian ambassador over why they didn't tell the world about the existence of the Doomsday Machine. If nobody knew about it, it was worthless. Today, the Pentagon just spews the hype, no need to have an actual weapons system behind it. Knowing the Pentagon, though, it probably doesn't save us any money.

  206. Isn't it ironic by rca66 · · Score: 1

    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."

    Destroying it using what? Antimatter for instance?

    Let's recap this:
    bad news: scientists are developing just another source of energy which could blow up the whole planet
    good news: the same source can be used to drive a spacecraft to leave the mess behind.

    I think that's what one calls "sustainable usage of energy".
  207. Re:"23 space shuttle fuel tanks" and the "gag orde by egomaniac · · Score: 1

    I thought the standard unit of explosive power was the ton of dynamite...

    Nope, it's tons of TNT, not dynamite. For some reason everybody seems to think that dynamite and TNT are the same thing, but dynamite is actually a nitroglycerin paste. TNT is entirely different.

    --
    ZFS: because love is never having to say fsck
  208. Interesting argument in Nobel times.. :-) by BerntB · · Score: 1
    when we can turn it into devices which make it impossible for anyone to field an army it essentially makes conventional warfare into suicide. Isn't that what you wanted?
    I believe that Alfred Nobel argued exactly that.

    But he did it about his own invention -- dynamite! He was obviously right there, eh? :-)

    My personal opinion is that with all the space applications I'm all for antimatter research. Give NASA's budget to DARPA for a decade and humanity will have a better space program...

    --
    Karma: Excellent (My Karma? I wish...:-( )
    1. Re:Interesting argument in Nobel times.. :-) by TGK · · Score: 1

      Incidently, so did Hiram Maxim, the inventor of the Maxim Gun (the first non-gattling machine gun). He built his gun to make warfare so terrible as to be unthinkable.

      Then there was WWI. Worked out really well for him too.

      --
      Killfile(TGK)
      No trees were killed in the creation of this post. However, many electrons were inconvenienced.
  209. discussing antimatter by Anonymous Coward · · Score: 0


    "the Air Force issued a gag order that prohibits any Air Force employee from discussing antimatter research or funding."

    It's not a matter of discussion.

  210. Pretty darned spectacular if you ask me... by Dr.+Zowie · · Score: 4, Interesting
    Hmmm... "sit on the floor sizzling like a drop of water on a griddle" conjures up positively, er, gentle images.


    But you have to think about what's doing the holding up. In this case, it wouldn't be steam, it would be radiation pressure keeping the atmosphere from rushing in and annihilating. The actual momentum carried by gamma ray photons from the annihilation would deflect air molecules out of the way to prevent a rapid inrush.


    You can calculate how much power that is per square centimeter of "exposed" antimatter.
    Each photon carries a certain amount of momentum, momentum per unit time is force. So to sustain a certain pressure a certain number of photons have to be absorbed by the air per square centimeter.


    The momentum carried by a photon is just E/c, where E is its energy and c is the speed of light. So to hold out 15 psi (10 Newtons per cm^2), you have to transmit 10^9 Newton-meters/second of power through that square centimeter.


    So a golf ball of antimatter, sitting in the atmosphere, would emit about 4*pi*10^9 Watts, or about 10^10 Watts. The surface of the golf ball would be 10^11 times brighter than the surface of the Sun -- though of course most of that radiation would be in the form of gamma rays.


    If the golf ball massed about 5 grams, it would
    release 5x10^15 Joules in total, so it would indeed last a long time -- but you wouldn't want to classify it as a gentle sizzle...


    You could do much better by applying more pressure to the golf ball. Putting it in the imploding shock wave of a thermonuclear bomb trigger could increase the output by something like eight orders of magnitude if you got lucky enough (it scales linearly with pressure).

    1. Re:Pretty darned spectacular if you ask me... by snarkh · · Score: 1
      Actually, it is rather hard to imagine that a ball with that surface temperature will not fall apart.
      Once it happens the surface area will increreas and keep increasing with further disintegration of the parts.


      So it seems quite likely that the process will end with a big boom after all.

    2. Re:Pretty darned spectacular if you ask me... by bcrowell · · Score: 1
      In this case, it wouldn't be steam, it would be radiation pressure keeping the atmosphere from rushing in and annihilating.
      There are three problems with what you're saying:
      1. There is no way that radiation pressure will be as big an effect as convection currents.
      2. If you wanted to use the antimatter bowling ball as a weapon, you'd just blow it apart into dust using conventional explosives, and then the dust would annihilate very rapidly and efficiently.
      3. Please read the article. They're not talking about using electrically neutral antimatter. They're talking about using positrons that are contained by electromagnetic fields; once you turn off the fields, the positrons will annihilate in a very short time.
    3. Re:Pretty darned spectacular if you ask me... by snarkh · · Score: 1
      If you wanted to use the antimatter bowling ball as a weapon, you'd just blow it apart into dust using conventional explosives

      How would you use conventional explosives to blow a chunk of antimatter apart? After all the energy of conventional explosives is nothing compaerd to the energy emitted by antimatter on contact ith ordinary matter.

    4. Re:Pretty darned spectacular if you ask me... by sploo22 · · Score: 1

      Sure, but in addition to that annihilation energy on contact with the bomb there would be a very strong explosive force.

      --
      Karma: Segmentation fault (tried to dereference a null post)
    5. Re:Pretty darned spectacular if you ask me... by 6th+time+lucky · · Score: 1

      5x10^15 Joules at 10^10 Watts... hell thats a little sun sitting on the floor for a month !

    6. Re:Pretty darned spectacular if you ask me... by Alsee · · Score: 1

      The intensity of radiation would need to increase by probably a few orders of magnitude to actually exert that much pressure on the air - much of the radiation will be transmitted for at least some distance.

      But probably the biggest fatal simplifications are to assume a static anti-matter core and to assume an equlibrium state. That level of radiation would instantly vaporize the antimatter itself into a rapidly expanding plasma. Thus would increase the surface area enormously. Additionally the outgoing radiation will heat the local air. This is not an equilbium condition. At the speeds and time scales we are discussing the surrounding atmosphere itself would act as an inertial pressure chamber. The locally contained and heated air would exert many times normal atmosphereic pressure.

      I'm pretty sure the antimatter would turn into a ball of plasma expanding at a non-trivial fraction of the speed of light. It would simply overtake and consume the closest equal mass of matter in a split second.

      In otherwords *boom*, not sizzle. Chucle.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  211. State Dept Memo about SBU by ThatsLoseNotLoose · · Score: 1

    http://foia.state.gov/masterdocs/12fam/12m0540.pdf

    1. Re:State Dept Memo about SBU by Anonymous Coward · · Score: 0

      Right--but SBU is not an official classification as the parent stated. There is a huge difference.

    2. Re:State Dept Memo about SBU by ThatsLoseNotLoose · · Score: 1

      I may be being pedantic here, but maybe so are you.

      Seriously, it seems like a non-sequitor to say that there's no classification known as unclassified

    3. Re:State Dept Memo about SBU by Anonymous Coward · · Score: 0

      Repeat after me: "There are only three types of classified information: Confidential, Secret, and Top Secret." Even ROTC cadets know that. The USAF does not say "classifed FOUO", or "classified SBU." Such confusion is a sign of poor security training or someone who does not access classified on a daily basis.

      You may think I'm being pedantic, but in all seriousness, security in the USAF is huge, and this stuff is beat into our heads on a daily basis because the stakes are so high. It a shame to see stuff like this moderated +5.

    4. Re:State Dept Memo about SBU by Anonymous Coward · · Score: 0

      SBU is a term to refer to materials which, while unclassified, should not be released. IT IS NOT A CLASSIFICATION. It's not even like FOUO, where it will have a statement on the document that says "This information is protected by the privacy act of XXXX. FOR OFFICIAL USE ONLY. You're not being pedantic, you're arguing with two active duty members about terms that we hear every day. Why do you think we post anonymously? We know security!

    5. Re:State Dept Memo about SBU by Anonymous Coward · · Score: 0

      Our security managers would be proud of our efforts to straighten folks out here on /. ;-) Now, where's my +5 Informative? Oh yeah, I posted AC. Have an outstanding Air Force day, fellow blue-suiter!

  212. A shitload? by FirstNoel · · Score: 5, Funny

    A co-worker's husband runs a Septic Tank clearing business. When we asked what a shitload was we were told "1600 gallons".

    Sean D.

    --
    "Hmm. I am to metaphor cheese as metaphor cheese is to transitive verb crackers!"
    1. Re:A shitload? by Anonymous Coward · · Score: 0


      Please, don't eat the brown trout.

    2. Re:A shitload? by Frogbert · · Score: 1

      He was talking about metric shitloads you insensitive clod!

    3. Re:A shitload? by Anonymous Coward · · Score: 0

      When we asked what a shitload was we were told "1600 gallons".

      imperial or us gallons?

    4. Re:A shitload? by SlowMovingTarget · · Score: 1

      In Canada they go with the more unusual "metric buttload."

  213. Wrong kind of radioactive by weedenbc · · Score: 5, Informative
    Anti-matter weapons are radioactive in the same way as neutron bombs - a burst of gamma radiation. But they are NOT like fission bombs in releasing radioactive particles.

    In a fission reaction the fallout comes from two sources. The first is the by-products of the fission reaction. I believe it is radioactive isotopes of Cesium and Potassium. This radioactive particles combine with the uranium/plutonim that did not fission and get distributed as fallout.

    A pure fusion bomb, e.g. neutron bomb, has only a fusion reaction and thus theoretically produces no radioactive fallout. However in practice a fission reaction is used to create the pressure and heat needed to start the fusion reaction.

    See the Special Weapons Primer at http://www.fas.org/nuke/intro/nuke/index.html for more info.

    --

    "Trying is only the first step towards failure." - Homer
    1. Re:Wrong kind of radioactive by Blethrow · · Score: 5, Informative

      A neutron bomb will also generate a ton of local radioactivity by neutron capture activation of nuclei in the immediate environment. Most of this will be pretty short lived.

    2. Re:Wrong kind of radioactive by fozzy1015 · · Score: 1

      My understanding of nuetron bombs is that they are basically fission devices with the outer reflector removed so that instead of nuetrons being reflected back into the fissile material for a greater yield, they are released. I'd imagine you'd have to beef up the initiator and fissile material amount in an implosion design to compensate. So a nuetron bomb will still result in some sort of radioactive fall out.

      Neutron bombs were basically designed for one thing only: Against large fields of heavy armor in a Cold War style invasion. Tanks are resilant to the concussion and heat effects of a nuclear bomb, but nuetrons can penetrate heavy armor easily.

    3. Re:Wrong kind of radioactive by Lehk228 · · Score: 1

      neutron bombs are also (theoretically) good against well defended bases, especially those containing sensitive information which would be destroyed before being allowed to fall into enemy hands.

      --
      Snowden and Manning are heroes.
    4. Re:Wrong kind of radioactive by Neil+Rubin · · Score: 1

      It should be noted that most of the fallout from current thermonuclear warheads is produced entirely by choice. As reported, for example, in the famous Progressive Magazine article of 1979, over half of the energy released and most of the fallout produced by such a warhead comes from fission that occurs after the fusion explosion. Effectively, the fusion explosion serves to produce a much larger and more complete burning of fissile material than could be produced with conventional explosives.

    5. Re:Wrong kind of radioactive by Blethrow · · Score: 1


      They were designed for two things, I think; one being the one you mentioned and the other being interception of incoming warheads high in the atmosphere. I think the idea was that a strong neutron flux into a warhead would cause strong but sub-critical fission, consuming enough of the fuel so that when the device imploded there was no longer sufficient fuel to go critical. But I may be wrong on that.

      My understanding was that most of the neutron flux from a neutron bomb came from the fusion stage, and that this stage was designed to allow those neutrons to escape, rather than fission the tamper. Also, the fusion fuel is different, being either D +T or Deuterium alone (I forget which) rather than lithium deuteride. But then, I'm not all that clear on the fine points.

    6. Re:Wrong kind of radioactive by smithmc · · Score: 1

      Anti-matter weapons are radioactive in the same way as neutron bombs - a burst of gamma radiation. But they are NOT like fission bombs in releasing radioactive particles.

      That'll be a comforting thought when the first antimatter accident leaves a 100-mile crater in your backyard...

      --
      Downmodding is the refuge of the weak. Don't downmod, make a better argument!
    7. Re:Wrong kind of radioactive by 6th+time+lucky · · Score: 1
      My understanding of nuetron bombs is that they are basically fusion devices with the outer reflector removed
      They are fission initiated fusion bombs without a tamper, so that the neutrons do get out and about. I havnt seen it stated, but it would follow that these fusion neutron bombs would have less kiloton (megaton?!) yield as there is no uranium tamper to fast fission.
      Tanks are resilant to the concussion and heat effects of a nuclear bomb, but nuetrons can penetrate heavy armor easily.
      And of course some bright spark decides to make the tank armor out of depleted uranium (M1?). Hmmm... set off a neutron bomb in a circle of DU armored tanks and you have one hell of a tamper to go with your 'clean' fusion bomb.
  214. 1 Metric Fuckton by Orne · · Score: 1

    In college (1994), we would get a lot of homework. Since every teacher seemed to believe that their class was the only one you were taking during the week, they just piled the assignments on. At some point you would attempt to gauge how much you had to do...

    Having just finished our calculus work, we were postulating on how much stuff you could possibly have as your workload approached infinity. Being geeks, we understood that given an infinite range of numbers, we as humans like to put names on our numbers (million, billion, etc), so at some point when you associated a name with that ungodly large number, that name would be "fuck". That worked well, since we were fond of saying we had a fucking lot of work to do.

    Since we had to carry all this crap around with us every day, the weight of all this work was a fuckton.

    On the rough days, you'd say you'd have a metric fuckton of work, since everything is always slightly bigger in metric.

    1. Re:1 Metric Fuckton by Anonymous Coward · · Score: 0
      On the rough days, you'd say you'd have a metric fuckton of work, since everything is always slightly bigger in metric.

      Except, ironically, for the ton(ne).
      $ units
      2084 units, 71 prefixes, 32 nonlinear units

      You have: 1 tonne
      You want: 1 ton
      * 1.1023113
      / 0.90718474
  215. no kidding.. by ReidMaynard · · Score: 1
    the price tag for 100-billionths of a gram of antimatter would be $6 billion, according to an estimate by scientists...


    These guys should get out more, I just saw a 100-billionths of a gram of antimatter on eBay starting at $9.99

    --
    -- www.globaltics.net

    Political discussion for a new world

  216. Re:Some things I don't understand about anti-matte by Genady · · Score: 1

    We'll probably use a form of particle trickery, directing the resulting anti-matter towards matter. Viola. Weapon.

    What, like THIS?

    --


    What if it is just turtles all the way down?
  217. Bad terrestrial weapon, good space weapon by Autobahn · · Score: 1

    US Military Plans Space Combat

    Does anyone see a connection? In space containment is much less of a problem (though cost is still an issue).

  218. slight correction... by Dr.+Zowie · · Score: 4, Informative

    whoops -- I mistyped the comparison with the Sun. That should read "The surface of the golf ball would appear 10^11 times brighter than sunlight". The surface of the golf ball would "only" be 2 million times brighter than the surface of the Sun.

  219. Re:Units by Ctrl-Z · · Score: 1

    Well...if you know their conversion values, you could put them in your units.dat file.

    --
    www.timcoleman.com is a total waste of your time. Never go there.
  220. Star Wars Explosions... by PetoskeyGuy · · Score: 1

    Anit-Matter explosions will look like just like the existing nuclear ones, but now with a big rolling circle spreading out like a Future Crew Demo or Death Star Explosion.

  221. Less is more by coyote-san · · Score: 2, Insightful
    Doesn't anyone here read the regular press?

    If the military needs a 10MT bomb they're use a nuke. It's known, reliable technology. It's even safe... at least for us.

    But if the military wants to hit a target with, oh, 100T to 2000T - that's tons, not kilotons - it doesn't have a lot of options. Conventional cruise missiles can carry a few tons (actually far less but modern chemical explosives are far more powerful than TNT). Aircraft can drop heavier bombs, up to MOAB, but that requires you to actually get a heavy bomber into the area. That can take hours, it has to get past air defenses, etc. You can't just launch a bunch of cruise missiles from a submarine or destroyer and be done with it.

    This is why the military was looking at "mini-nukes"... but there's a lower limit on the size of nuclear weapons and actually testing one will cause a lot of problems on the world stage. Not that this administration gives a damn about that but it is a consideration.

    An antimatter bomb can be as small as you need to disable the target while minimizing the collateral damage. It doesn't even have to be explosive - an intense "sizzling" gamma ray source may even be better than an explosion. It'll kill personnel, disable electronics, wipe magnetic media, etc. without causing the infrastructure to collapse beyond any damage caused by the initial penetration.

    --
    For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
  222. gives the whole new easy reason to.. by BigGerman · · Score: 1
    ..invade someone:

    We knew for a fact they had matter so there must be anti-matter somewhere in there!

  223. Anti Matter Exists in the Universe by Anonymous Coward · · Score: 0

    It floating around everyone, in tiny quantities, left over from the big bang, just like unburned hydrocarbons coming out of a car's exhaust pipe. If a space ship goes fast enough it can scoop up tiny amounts of antimatter and power itself forever.

    Scientists don't know this yet because aliens to me, a Star's ignition is caused by a concentration of anti matter and normal matter, releasing energy which in turn sets of hydrogen fusion cain reaction.

    One day human beings will understand how to harness and contain antimatter without blowing themsleves up, its only a matter of time!

  224. nice boom by fatmanone · · Score: 1
    Smith's storage effort is the "world's first attempt to store large quantities of positronium atoms in a laboratory experiment," Edwards noted in his March speech. "If successful, this approach will open the door to storing militarily significant quantities of positronium atoms."

    "If not, we'll just start looking for a new laboratory!"

  225. Re:Da Vinci by Anonymous Coward · · Score: 0

    Yes, the plot of every Dan Brown novel can be summarized like this:
    Attractive, single cryptographer/symbol researcher discovers world-shaking secret, then meets up with an attractive member of the opposite sex of similar age, and both end up chasing around a major urban area.

  226. Fun with liquid nitrogen by cryptochrome · · Score: 1

    I guess it's kind of like scooping up liquid nitrogen in your hand. For a few brief moments it doesn't burn you, because it's too busy vaporizing from the heat of your skin and forming an insulating barrier of gas between the drop and your hand. Until your skin surface runs out of heat, of course.

    It's a fun lab trick. Pour some in a cold bucket, then splash it on people. It goes poof when it hits their clothes or skin and either evaporates or bounces off onto the floor, where it sizzles and skids around for a while. Newbies always think they're going to freeze solid instantly though.

    Also under the right conditions it'll chill them just enough to make girl's nipples go hard. Thin shirts and bras (or better yet, no bra) in summer works best for that.

    --

    ---If you can't trust a nerd, who can you trust?

    1. Re:Fun with liquid nitrogen by BlueUnderwear · · Score: 1
      Also under the right conditions it'll chill them just enough to make girl's nipples go hard.

      But will they shatter?

      --
      Say no to software patents.
    2. Re:Fun with liquid nitrogen by Rorschach1 · · Score: 1

      Not a good idea to do with clothes. It can soak in and cause some really nasty frostbite injuries. I've taken a lot of LN2 splashes to bare skin with no problems, though.

    3. Re:Fun with liquid nitrogen by Rakarra · · Score: 1
      It's a fun lab trick. Pour some in a cold bucket, then splash it on people.

      Geez. What if it gets in their eyes?

  227. Re:[little john] WHAT? [/little john] by NichG · · Score: 1

    The cost is mostly in building several million/billion/trillion copies of the equipment to run simultaneously, to pay for the energy to power those machines, to pay for the liquid helium needed to cool the superconductors to contain the antimatter, etc.

    If you can make a single particle per minute, and you need to spend a million dollars to make a single machine that can operate continuously for 20 years making a particle a minute, your end result is that if you want a gram of this stuff (10^20 particles, if they were antiprotons. More for positrons) you end up spending 5*10^17 dollars (500 million billion if you like). So its 'cheap' to make a couple dozen of these things, or even a hundred thousand, but when you try to make macroscopic quantities you get hit by the huge difference in orders of magnitude between the macroscopic world and the world of nuclear interactions. I haven't done the calculation, but I wouldn't be surprised that if you want to make a gram of antimatter within a human lifespan, you'd have to cover every square centimeter of the earth with particle accelerators and have them run continuously.

    You might say 'why can we only do 1 a minute when we can do nuclear reactions that give us macroscopic quantities of some byproduct?' and the answer is roughly 'the strength of the interactions we can use to make antimatter are ridiculously small compared to that'. So sure, if you could find a process with a higher amplitude that produces antimatter, you might be able to step up the production. However, thats more of a fundamental physics problem than an engineering one.

  228. And in future news by mitchellandrews · · Score: 0

    Does this mean that the States will drop an Anti-Matter bomb once to end a war, and then approx. 50 years later go into Iraq looking for them?

  229. Antimatter weapon makes little sense by BobaFett · · Score: 1

    There is a fundamental problem with antimatter weapon, which has nothing to do with storing antimatter or any other engineering issues. Antimatter weapon does not produce "new" energy, it only stores energy which went into generating antimatter and then releases it. By comparison, nuclear explosives are "their own energy source", i.e. they release much more energy than went into their manufacturing, because we do not have to make uranium (and making plutonium from uranium takes relatively little energy). The energy balance of an antimatter weapon is similar to what a nuclear weapon would require if we had to make uranium from iron.

    Nuclear bomb, in effect, stores the energy of long-gone supernovas (which did convert iron into uranium), an energy source we cannot directly tap into. We don't have such sources for antimatter, so we have to produce it with our own energy.
    If we had an energy source which could generate antimatter in large quantities, we'd use whatever powers that energy source directly to make weapons, not store that energy as antimatter and then use antimatter like a rechargeable battery.

    The only use of this process would be to convert a large source of energy into a very compact one. The other alleged advantage, "clean nuke", is an outright lie. The gamma radiation will interact with surrounding matter which will cause all sorts of secondary nuclear reactions and create radioactive isotopes. If it wasn't the case, the antimatter explosion would be totally ineffective, the gamma photons which do not get absorbed or scattered by matter simply fly through it without any effect. What kills you is not the gamma rays whcih went right through you, it's those which did not make it through.

  230. Anti-Matter Smanty Matter - use the Omega Molecule by _A_Mad_Scientist · · Score: 1

    Been there, done that, got the t-shirt. Remember Voyager? Ya, ya, I know. Still this episode stands out: The Omega Directive

    --
    Reality is a crutch for people who can't handle lucid dreaming.
  231. Hmmm... by Mac+Degger · · Score: 1

    Weaponising this must be an absolute bitch! I mean, you can't just shoot antimatter out of a gunbarrel (or more likely accellerate it with EM fields) as-is: as soon as it hits the air you'd get interaction with real matter :)
    So you'd have to encase it in it's own little containment unit which breaks on impact or gets the matter-antimatter reaction going on impact: we're talking bombs only, I'd guess.
    Man, this would be damn interesting to work on...only you can just wait for Oppenheimer's thoughts to start haunting you.

    --
    -- Waht? Tehr's a preveiw buottn?
  232. Circumvention of arms race??? by Ced_Ex · · Score: 1

    Isn't this merely an attempt to circumvent the nuclear arms race by a mere technicality?

    "We're not building nuclear weapons... it's *anti-matter*, not really nukes... "

    --
    Live forever, or die trying.
  233. Re:Energy Conversion - Pinto Units Please by Nom+du+Keyboard · · Score: 1
    How much energy is that in Burning Libraries of Congress?

    I have no more concept of Burning Libraries of Congress than I do of Space Shuttle Fuel tanks (with or without out maneuvering engine fuel included). I've never used either of them.

    However, I was once rear-ended while driving a 1971 Ford Pinto. So I'd like to know what it is equivalent to in Fully Fueled Pinto Bombs, thank you.

    Or if you can convert it to furlongs per fortnight, I can take it from there.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  234. Re:Really... playboy by Anonymous Coward · · Score: 0

    I smooched oil millionaires that worked for Playboy. i was pretty high on mexican weed more so than hydro.

    web: eika.tzo.com

  235. Kinetic Energy? by izomiac · · Score: 1

    I was just thinking, isn't the formula actually something like e-mc^2*y , for kinetic energy? So what if instead of making a bomb, one could use magnetic acceleration to launch it from a satellite at close to the speed of light at the target? The air probably wouldn't collide with too many of the particles, but the ground would... Also, deploying it from a satellite would be better because it is harder to attack and if an accident occurs then it is in space, so you could safely store a lot more.

  236. The Cardinal Rule of Handling Antimatter by RackinFrackin · · Score: 1

    Don't get any on you!

  237. Gag order? by chinton · · Score: 1

    Hmmm... I had to sign one of those when I came to work at my new company, only they spelled 'gag' "N-O-N D-I-S-C-L-O-S-U-R-E A-G-R-E-E-M-E-N-T". I guess "gag order" sounds more sinister.

  238. fantasy and unimaginable budget plans by kc_cyrus · · Score: 4, Informative
    Actually, antimatter does not make good bombs. Even more ordinary nuclear bombs can "fizzle" unless carefully designed: the reaction gets going but too slowly, so the bomb blows itself apart before the reaction can proceed very far.

    With antimatter this problem is far worse, because while fission and fusion occur throughout the reaction volume, the matter-antimatter reaction occurs only on a contact surface.

    It's exceedingly difficult to get a major explosion with antimatter.(Tiny ones are not hard, since the square-cube law gives you more surface area per volume as the scale shrinks.)

    Also, with production technology we can reasonably foresee, antimatter is impossibly expensive for weapons applications.
    Even the US military has finite budgets. The cost of burning a city down with conventional weapons is large but not infinite. We won't get the price down below US$ 60.e6/mg using foreseeable Earth-based technologies and, at 43 kT/gm of antimatter, we're talking roughly US$ 1.4e9 per kiloton !!!!!!!!! Even the Pentagon's budget isn't THAT large...

    1. Re:fantasy and unimaginable budget plans by exp(pi*sqrt(163)) · · Score: 2, Informative

      Matter-anitmatter is in fact quite effective. If such a weapon accidentally blows itself apart it still continues to function because antimatter will react with any conventiently available matter, whereas if you misfire a conventional nuclear weapon then you can end up with bits of relatively inert plutonium sitting around.

      --
      Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
    2. Re:fantasy and unimaginable budget plans by coyote-san · · Score: 1

      The military and state departments have to have plans for things which are possible even if utterly unlikely. Somewhere deep in the vaults is probably a scenario for dealing with Quebec after it declares independence, becomes a Stalinist state, and then attacks the remainder of Canada and the northern US. (I didn't say these plans were always kept up to date.)

      In this case what matters isn't that such weapons are impractical at this time, just that they're possible. How would they be used? What countermeasures, if any, could be used? What does this tell us about other weapon systems?

      For example, even this discussion by uninformed civilians makes it clear that antimatter weapons would probably be low-yield intense radiation sources, not nuclear weapon scale explosives. What could you do with a milligram of antimatter? That's about 40T of energy - more than most bombs other than MOAB (maybe) - all delivered as hard radiation from a point source. How would you store it? Deliver it?

      For that matter, how much antimatter could you put out as a particle beam? What would be the range before you lose half of the particles to the air? What would be the effects in the vincinity of the weapon? This may sound like a lot of work, but positron beams can be easily redirected so a single weapon could take out hundreds or even thousands of targets in a matter of seconds.

      --
      For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
    3. Re:fantasy and unimaginable budget plans by Anonymous Coward · · Score: 0
      For example, even this discussion by uninformed civilians ...

      As an Anonymous Coward, I deman an apology here!

    4. Re:fantasy and unimaginable budget plans by Anonymous Coward · · Score: 0

      Do you consider yourself a PAC (Proud Anonymous Coward)?

    5. Re:fantasy and unimaginable budget plans by Anonymous Coward · · Score: 1, Interesting

      It's exceedingly difficult to get a major explosion with antimatter.(Tiny ones are not hard, since the square-cube law gives you more surface area per volume as the scale shrinks.)
      I'm not sure where this idea comes from, but it's been referred to in several other posts.

      You seem to be making the assumption that the anti-matter will be in the form a singular solid mass. Why? I would think that a fluid of some sort would be more likely (gas, liquid, plasma, cloud of positrons.) It seems very unlikely that you would have a solid spherical mass of anti-Carbon with minimal surface area (for instance.)

      rho
  239. Now now Donald.... by AmazingRuss · · Score: 2, Funny

    ...what do you want more doomsday weapons for? You hardly play with the ones you've got!

    1. Re:Now now Donald.... by Onikuma · · Score: 1

      Yes, but we need more environmentally friendly doomsday weapons. That way, after we kill everyone we... err... nevermind.

  240. Question. by Spy+der+Mann · · Score: 1

    What *kind* of antimatter are we discussing?

    Positrons (anti-electrons), or antiprotons? (btw, is there any thing like anti-neutrons?) Or anti-atoms as a whole? If we're talking about positron rays, would there be any anti-matter left after a couple of meters? Or are we talking bombs by any chance?

    And how are these things gonna be kept isolated from "positive" matter, anyway, so they won't be destroyed by mere contact?

    IMHO, this whole antimatter business is just a bunch of crap. The most practical application of antimatter i've heard of, is smashing a couple of anti-particles in gigantic accelerators.

    Wow, look at the dots in the computer, wheeeeeee!

  241. What a great idea by CmdrGravy · · Score: 1

    By the sounds of it this 'anti matter' is a useless method of providing power, is fantastically expensive, is extremely hard to control and useful only in the development of more powerful weapons which could be extremely small and easy to hard.

    I'm all for investigating stuff but I think there does come a point where we should do it in terms other than devising better ways to kill people.

  242. Re:"23 space shuttle fuel tanks" and the "gag orde by soulsteal · · Score: 1

    Forget the tons of dynamite measurement, I want to know how many Volkswagens and/or Libraries of Congress 1 gram of antimatter can destroy.

  243. hypocrites!! by Anonymous Coward · · Score: 0

    if any other country in the world were doing this, they would be a hole in the ground right now. I find it very hypocritical of the USA to go around bombing the shit out of any country that they (falsey) suspect are developing "WMDs" when they are actually doing so themselves. I would certainly like to see the US "get a taste of there own medicine" so to speak.

  244. The "shitload" scale by Impeesa · · Score: 1

    That's on the imperial scale, which runs from boatload to assload to shitload to fuckload to mighty fuckload, with some other more esoteric units in between. The metric scale uses the base unit of the shitload with the usual prefixes - the microshitload, the kiloshitload, etc.

  245. New "Precision" Weapons by ka9dgx · · Score: 1
    So now instead of killing everyone in an apartment building to try to get a target, we'll level the whole city? Oh... this is fscking brilliant!

    NOT

    --Mike--

    1. Re:New "Precision" Weapons by eagl · · Score: 1

      Yea. We should wait until some dictator or new-age fascist develops and uses the weapon first. Then we can go to bed feeling good about how although we're now under the rule of some freakjob whacko invader, at least WE weren't the ones who developed the weapons that let him take over the world.

      Or maybe it's just one more really big stick we'll have as a deterrant but won't use, just like the really big thermonuclear weapons we have and never use.

      Sooner or later someone is going to develop antimatter technology into a weapon, and I'm not ashamed to say I'd rather those weapons be on my side, not someone elses.

    2. Re:New "Precision" Weapons by ka9dgx · · Score: 1
      Oh great... and then 60 years later, we have an even bigger problem then Loose Nukes?

      We have the ThermoNuclear Bomb, do we really need anything bigger than 100 Megatons?

      --Mike--

  246. Tomorrow's news headline by Anonymous Coward · · Score: 0

    Forces from Iraq invade the United State out of fears that they were building weapons of mass destruction.

    Isn't this a bit hypicritical of the USA? I mean after the reports were generally blown out of scale to create an enemy. This is as far as I'm concerned far worse. If nuclear weapons are near taboo in use why makes something so much more powerful acceptable?

    I guess the military won't be happy until they have portable black hole generators on their backs to get rid of their targets. Mark this as a sad day folks.

  247. To boldy go... by CyberDave · · Score: 1

    So, where are my dilithium crystals, plasma coils, and warp cores? Oh, and subspace fields that we can use to alter the mass of an object and propel it to FTL speeds?

  248. Priceless quote.. by Begossi · · Score: 1

    Besides, Lynn is enthusiastic about antimatter because he believes it could propel futuristic space rockets.
    "I think," he said, "we need to get off this planet, because I'm afraid we're going to destroy it."
    I don't know about you, but I almost choked with my coffee...

    --
    Friend of the Wise, Brother of the Brave.
    1. Re:Priceless quote.. by mbonig · · Score: 0

      whew... maybe someday I can use this to seal up that matter in anti-time I've got in my backyard. The cool part is that it keeps getting smaller, so I guess I don't need to really worry.

  249. Re:How about research them...Big Wrong!! by Nom+du+Keyboard · · Score: 4, Interesting
    they redesigned the primary infantry weapon to have a less powerful cartridge that had full-auto capability to provide suppressive fire vs aimed fire. A smaller cartridge means that an infantryman can carry more rounds for the same weight. This gave us the M-14.

    Sorry, Big Wrong here. The M14 fires the .308 (7.62 x 51mm) cartridge, which provides virtually identical ballistics to the .30-06 (7.62 x 61mm) round in the M-1. All the .308 proved was that you could put a .30-06 into a case about a half inch shorter.

    It was from that mis-step that we went to the 5.56 (.223) cartridge in the M-16 that wasn't even initially intended for the U.S. Army. We were giving AR-15 (civilian model of the M16) to our more slightly statured (shorter & lighter) South Vietmese allies when some one realized that a heavy rifle with heavy ammunition that nobody could control on full-auto fire didn't make nearly as much sense in the jungle where visibility was often 15 yards or less, as did this toy rifle we were giving to everyone else.

    As a result, the M16 and its derivations have now served for as long as any other service rifle in the U.S. Military.

    And btw, it was the Germans back in 1941-1942 who realized that it didn't make sense for their soliders to carry 1000 metre rifles when most battles were fought at under 400 metres. A smaller, lighter, cheaper rifle with ammunition only effective out to 400 metres that allowed selective fire as well made the individual foot solider a much more effective fighter. Too bad that the USA had to learn that lesson TWICE!! (M14, before M16.)

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  250. Re:Some things I don't understand about anti-matte by Trespass · · Score: 1

    I say sci-fi because of scale. Trapping a few particles is one thing, but containing enough antimatter to make mischief with? Well...

    I know the systems involved would probably scale well, but I imagine there would also be at least one additional layer of complexity because of the severe consequences that would result from a leak.

  251. It's not a gag order by eagl · · Score: 1

    It's not a gag order, it's a reminder of the Non-Disclosure Agreement anyone with a security clearance must sign, and a reminder that certain projects will always be covered by the NDA. Not only that, any project you don't specifically know *isn't* covered by the NDA must be assumed to be covered by the NDA.

    It's part of the standard security procedures, so a reminder isn't anything special unless someone makes a sensationalist statement using emotionally loaded phrases like "gag order" to describe a standard security process.

    Besides, when it's a national security issue of high importance, it's pretty stupid to go blabbing or speculating about stuff you may have heard about or have a pet theory about. When it comes to weapons technology, "free speech" whackos can cry all they want but frankly they don't need to know so they'll never get the whole story.

  252. Thank goodness by Tom7 · · Score: 4, Funny

    Such weapons would easy eclipse nuclear weapons in power

    Thank goodness. One of the biggest problems with nuclear weapons is their lack of power.

  253. Because it's harder! by Analogue+Kid · · Score: 1

    "Positive" purposes? Peh! How much work would that be?

    Besides blowing stuff up could be positive! Like blowing up McDonalds toys! Let me tell you, it's a pain in the ass to do with black cat firecrackers... I don't think I've ever managed it in less than 5 or 6. Damned indestructable McDonalds toys... grumble.. grumble... I want anti-matter... grumble... grumble... grr...

    --
    I'm a gnu world man.
  254. And you call yourself a geek? by Anonymous Coward · · Score: 0

    Why are you trying to figure this out yourself when we already know Wesley reads /.

    Wesley, how do we make it go boom?

  255. Re:I'm curious as to why Matter + Antimatter = Ene by sexylicious · · Score: 1

    You're welcome.

  256. Oh, Big Deal ... by Anonymous Coward · · Score: 0

    It's still only a measly 2.4x10^-152 of an Illudium Q-36 charge, you puny earth creatures.

    (Or Illudium PEW-36 for the stink bomb version.)

    Marvin

  257. Space Applications by Anonymous Coward · · Score: 0

    One of the better things about anti-matter is that it can be used as a powerful propellent aboard a space vehicle to achieve staggering velocities. These theoretical types of rockets could have velocities approaching 50% the speed of light.

    If you could get near that speed you could reach the nearest star system in less than a decade, and interplanetary travel to the farthest reaches of the solar system would be on the scale of weeks, not years.

  258. How Far Are They? Review Post Grad Theses! by Anonymous Coward · · Score: 1, Interesting
    It had to have been, Jesus, the late Eighties when one of the boys at the Huge Aircrash Malibu research center came by our plantsite to give a lunchtime talk about anti-matter and spaceflight. DARPA had funded him to write a paper on the nuts and bolts of getting enough anti-matter in one place to fuel a deep space mission.

    At the time - and I suppose now - about the only source of anti-matter were nuclear accelerators. The speaker stepped through some concept drawings for filtering, capturing, and storing the good stuff, and how to play with it once enough had been collected to be worthwhile.

    What stands out in my memory was the number of times he paused to comment "this would make a good post-grad/post-doc project". So, unless the AF has one hell of an accelerator stashed away that's somehow optimized for anti-particle creation, any practical work will have been in conjunction with the few existing big accelerators. Do some thesis doc searches with references to Fermilab, Livermore, and magnetic
    bottles, and you'd have a start.


    Something for the tinfoil hat people to keep in mind is that as it stands now, it takes a LOT of energy to produce enough anti-particles that would so much as sterilize a carton of milk, nevermind launch us to Pluto or send China on a Flying Leap Backward.

  259. OOO NOOOOOOO!!!!!!!!! by Igby · · Score: 1

    Oh my God! Their going to reverse the polarity! NOOOOOOOO!!!!!

  260. NASTY PICTURE WARNING by Anonymous Coward · · Score: 4, Informative

    Don't look if you ate recently.

    1. Re:NASTY PICTURE WARNING by vettemph · · Score: 1
      Re:NASTY PICTURE WARNING



      A little too late but thanks. I was eating dried banana chips. In hind sight, I'm trying to figure why exactly I thought it was a good idea to check out the link.

      --
      The government which is strong enough to protect you from everything is strong enough to take everything from you.
    2. Re:NASTY PICTURE WARNING by Anonymous Coward · · Score: 0

      Come on! That picture was absolutely nothing.

  261. Oops mis-read on my part.. long day, tired. Sorry. by Polarism · · Score: 1

    Belay that last post.

    --
    All your base are belong to Google.
  262. tsop izan gnilleps by Kiryat+Malachi · · Score: 1, Funny

    .rettamitan, ton rettamitna.

    --

    ---
    Mod me down, you fucking twits. Go ahead. I dare you.
    (I read with sigs off.)
  263. More importantly... by Thunderstruck · · Score: 1

    When will we see a prize offered to spur development of civilian & commercial antimatter weapons?

    --
    Trying to use sarcasm in text-based forums does not work.
  264. Solar Ding? by saikou · · Score: 1

    Perhaps the best way would be to research the viability of capturing solar wind and converting it into antimatter on solar orbit?
    That would solve multiple problems -- no risk to surface-based buildings, all source materials are radiated from the sun (solar panels + hyrdrogen, captured from the solar wind), containment fields would hold finished fuel, which can be picked up by a shuttle :)
    Hm... but someone already thought of that, I am sure...

  265. So the real message.... by Anonymous Coward · · Score: 0

    is that the terrorists SHOULD have hijacked a space shuttle.

    It's ok, I bet Osama reads /. and is taking notes.

  266. I've read this book before... by SyniK · · Score: 1

    It's called Angels and Demons!
    Wow. Does SciFi really cover everything? Can't we think of new ways to kill / destroy?

    --
    -Tom
  267. well, no, actually by MenTaLguY · · Score: 1

    MOST of the damage from gamma rays is ionization damage -- i.e. atomic bonds are disrupted, not nucleii. Yes, there would be some nuclear interaction, but not that much.

    With nuclear weapons, by contrast, the big problem is free neutrons flying around. Those are quite likely to disrupt nucleii and produce unstable (and therefore radioactive) daughter nucleii.

    --

    DNA just wants to be free...
  268. At least it wasn't... by Anonymous Coward · · Score: 0

    ...a goatse link.

  269. How far? by miffo.swe · · Score: 1

    Isnt it enough that the US is more than capable to destroy the world five times over, not counting pollution and bad movies?

    Im sick of the US talking about terrorism. Im damn more frightened about those kinds of weapons in the hand of a country than terrorists killing small number of people randomly. Vote that warmonger and his evil friends to the stoneage i say!

    --
    HTTP/1.1 400
  270. Why not... by Trikenstein · · Score: 1
    just use antimatter toast buttered with antimatter butter on both sides?

    The antimatter dairy industry would thank you, and no one would have to scoop out antimatter litter boxes.

  271. A Honeydipper! by HBI · · Score: 1

    That's what we call those trucks. Honeydippers.

    Mmmm-mmm what a yummy smell.

    --
    HBI's Law: Frequency of calling others Nazis is directly correlated with the likelihood of the accuser being Communist.
  272. That tells us...nothing by trainsnpep · · Score: 1
    "Such weapons would easy eclipse nuclear weapons in power, e.g., 1 gram of antimatter would equal 23 space shuttle fuel tanks of energy."

    Sorry, but that tells us nothing. Apples and Oranges. First we're given a measure of nuclear power, then we're given a measure of combustion power. They can't easily be compared, unless you know that 1 nuke = X space shuttle fuel tanks (lets get out of junior high...)...

    --
    --<Mike>--
  273. Interesting. by BoneFlower · · Score: 2, Insightful

    " either pure antimatter bombs or antimatter-triggered nuclear weapons; the former wouldn't emit radioactive fallout"

    Good and bad. Good is no radioactive fallout... the long term consequences of their use, and the collateral damage, are dramatically reduced.

    But thats bad too, since lower consequences will likely mean more likely to use.

    The vast power of a small amount is also troubling. How easy would it be to use a small amount? Sure, any amount would cause a boom, but it might not be practical to weaponize small quantities with the difficulties of safely containing antimatter for long term use. From the article, micrograms are only equivalent to about 83 pounds of TNT, so if amounts that small can be safely and effectively weaponized it could be useful. On the other hand, how far does that initial gamma ray burst travel?

    Interesting technology, but there are serious questions.

  274. I know what happens by Rhodnius · · Score: 1

    My bet's on KABOOM, but no ash or lava.

  275. Damnit Spock! by bubkus_jones · · Score: 1

    Where's my torpedo!!!

  276. New for Nerds by Camel+Pilot · · Score: 1

    Stuff that anti-matters

    Time for a sound bite change...

  277. Antimatter Weapons by p0rnking · · Score: 1

    With all the posts talking about how much enery 1kg of antimatter releases, I'm surprised that I haven't seen anyone who is worried that this is for weapons.
    Why the hell would we want antimatter weapons? 'Specially since the last time a nuke was used (correct me if i'm wrong) was in '45.
    Doesn't a Nuke do more than enough damage already?
    And this is coming from the country who is afraid of other countries that are starting up their own nuke programs (Iran, South Korea, India and Pakistan ...), and the same country who invaded Iraq, because of supposed WMD.
    Personally, I find it frightening that weapons like this are being researched. Shouldn't they be trying to work on weapons that cause less casualties and destrcution?
    WW4 will be fought with sticks and stones.

    1. Re:Antimatter Weapons by John+Meacham · · Score: 1

      The point is not big weapons, but small ones. A nuke is more than powerful enough, but the problem is they are too powerful. If you want an explosion somewhere between the largest chemical one and the smallest nuclear one (which is a pretty big range) then anti-matter is a nice canidate.

      --
      http://notanumber.net/
  278. Yes I do. by raehl · · Score: 1

    Football Fields to the Three Halves would be the appropriate dimension to measure volume.

    1. Re:Yes I do. by Chrispy1000000+the+2 · · Score: 0

      Ah, but thats only if you figure you don't need a temporal direction. Then it is most correctly football fields squared. The question is, canadian or america? Or would it be football(NA) vs football (rest of the world).
      //me want's my coffee five meters ago.

      --
      Sig
    2. Re:Yes I do. by ndogg · · Score: 1

      Whatever. Your 3d stuff can't hold a glass of water to my four spatial dimensions.

      --
      // file: mice.h
      #include "frickin_lasers.h"
    3. Re:Yes I do. by BrainInAJar · · Score: 1

      3 dimentions how quaint...

      We have 5. Thousand.

    4. Re:Yes I do. by freqres · · Score: 1

      Word is not Real nor Truth, but deadly virus of humanity, transmitted through language. Teach Time Cube, You Fools.

      --
      Rampant Ninja related crimes these days...Whitehouse is not the exception
    5. Re:Yes I do. by mattyrobinson69 · · Score: 1

      according to FIFA rules (i cant remember exactly), football pitches can vary in size by 10m accross and 20m long (not sure of numbers):

      old trafford is a short wide pitch, bayern munich's stadium (i forget the name) is a long thin pitch.

      If you were a manchester united fan (as i am), you could measure the explosion in anfield pitches (anfield is liverpools stadium - local rivals [local rivals for you yanks])

    6. Re:Yes I do. by Chrispy1000000+the+2 · · Score: 0

      But still, how does one measure the lenght of time? How long is 1m of time?

      --
      Sig
    7. Re:Yes I do. by mattyrobinson69 · · Score: 1

      i dont understand the relation this has to my last post but i'l answer anyway:

      length of time is relative to the velocity of what you are measuring is travelling in relation to something else:

      consider earth to be travelling at 0m/s, and a bullet is travelling at 50 metres per second, it would take the bullet one second to travel 50m, therefore 1 metre of time relative to this bullet and the earth would be 0.02 seconds.

      Thats my interpretation of what you said, anyway.

    8. Re:Yes I do. by Chrispy1000000+the+2 · · Score: 0

      I was replying to the part of your comment that didn't reply to my comment about my comment that was commenting on the how to measure football feilds squared, where it was my idea that the final d would be into time, thusly one would have to figure out an abstract formula of how far in s 1 football field would be, +- the appropriate error measurement.

      simple, hun?

      --
      Sig
  279. WMD? by AeroIllini · · Score: 1

    A Weapon of Matter Destruction?

    --
    For security, the MD5 hash of this message and sig is 09f911029d74e35bd84156c5635688c0.
  280. Yes, yes, that's nice by Anonymous Coward · · Score: 0

    They're also pursuing warp transport, light sabers, hyperspace, fusion reactors, gravitron drive, flux capicators, and terraforming.

    Did I miss anything?

    Wait...what about the bio-weapons division?

  281. What if terrorists get their hands on anti-matter? by Anonymous Coward · · Score: 0

    That will be really horrible...

  282. In Metric ... it's a Merde Tonne... by Anonymous Coward · · Score: 0

    duhh!

  283. MONTAUK PROJECT already did it!!! by Anonymous Coward · · Score: 0

    Why are they spending so much money on this shit when the Montauk project already did it?!?! They can get stuff and send it back in the past. When it meets itself in the past it will explode like antimatter due to the fact that it has a different phase. They can also trade some people to the Reptillians in exchange for a ready-made weapon. ...
    Did you say there was a gag order?
    Oh shit!... $%!$%!()@$*

  284. Excess? by Secret+Chimp · · Score: 0

    When the hell are you going to need to destroy that much shit at once? When the land of Japan itself turns into a giant robot and threatens South Korea with its horrid bio-geo-robo-powers?

  285. spider-man 2 quote by wattersa · · Score: 1

    "The power of the sun...IN THE PALM OF MY HAND!"

    -- Dr. Octavius. and they say movies don't predict the future.

  286. Re:Some things I don't understand about anti-matte by Caraig · · Score: 1
    If the antimatter is too heavy to float in the breeze, duct-tape the antimatter to the balloon.
    Using WHAT? Anti-duct-tape? BLASPHEMER! There is only one duct-tape, and it is what binds the universe together! How could you postulate an adversarial, anti-duct-tape when there is but one true duct-tape?

    I find your lack of faith disturbing. *Vaderlike breathing as a gimp in a black cape wraps duct tape, Dark Side out, around the offender's neck.*
    --
    "I am an Adept of Tantric VAX."
  287. Re:Anti-Matter Resch.--Whoah! by davidsyes · · Score: 2, Funny

    Whooah... For a second my mind thought my eyes saw:

    "Anti-Matter Reich."

    --
    Previously: "Linux... Toward the Sunrise..." Now: "Linux... Toward the-- No, now, part of Every Sunrise"
  288. No worries. by raehl · · Score: 1

    The thing that makes an anti-matter weapon so effective is that it will almost certainly kill whoever is dumb enough to invent one before they can release the weapon on the rest of the world.

    If only nuclear weapons had worked so well, the planet would be a much safer place.

    "We are pleased to report that the newly invented anti-matter weapon has killed its creator, ending the anti-matter weapon arms race."

    If only nuclear weapons had worked so well, the planet would be a much safer place.

  289. The most important thing by dlevitan · · Score: 1

    I think the most important part here is that the Air Force is interested in anti-matter research. If the government starts pouring money into the research, then maybe we will get cheap anti-matter. Anti-matter is only expensive now and there may be ways to get it cheaply. That, I think, is the most important part of this development.

  290. Wait a minute... WMD? by Anonymous Coward · · Score: 0

    Wait a minute guys... Who's carrying Weapons of Mass Destruction now?

    Who is more likely to use this to actively attack other countries without being attacked first, just for the sake of politic and oil gains?

    Oh, yeahm, The World Cops... Just a reminder: history reapeats itself, it's a cycle. Remember what happened to the Roman Empire. Or the Mourish after one thousand years in the Iberic peninsula. Or the Turk Otoman Empire... Yes,, downfall is something that may - and will happen...

  291. Re:[little john] WHAT? [/little john] by vettemph · · Score: 1
    A gram of antimatter would cost almost more money than exists on earth if I recall.

    Maybe we could start an antimatter project on sourceforge? We could call it Doesn'tMatter.

    --
    The government which is strong enough to protect you from everything is strong enough to take everything from you.
  292. And let that be a lesson to you... by Bill_Mische · · Score: 1

    ...never let armed men with lots of money get bored...they just get ideas - big ideas.

    --
    Boring Old Fart (40, married, 3 kids...er no...make that 49, married, 3 grown up kids...it's been a long time)
  293. Re:What if terrorists get their hands on anti-matt by Tablizer · · Score: 1

    Indeed. They eventually get their hands on everything else. Russia spies stole our secrets, spread the secrets to Pakistan when nuclear physisists were unemployed, who then sold them to Iran, Libbya, N. Korea, and who knows who else.

    Spying is just too damned easy. Can't keep such a powerful geanie in the bottle forever.

  294. Re:Energy Conversion with elephants by RedLaggedTeut · · Score: 1

    If you strap a cat to the bottom of the elephant, and a buttered toast to the upper side of the elephant ..

    Then we know that buttered toast always lands on the buttered side, while the cat lands always on its feet ..

    So the elephant will never hit the ground, since there is no way it can land without breaking a natural law ..

    So altitude doesn't matter - this is why there is no google unit conversion for it!

    --
    I'm still trying to figure out what people mean by 'social skills' here.
  295. startrek anyone by shlepp · · Score: 1

    Now for the antimatter torpedos. Whats next, quantom, photon?

  296. Re:[little john] WHAT? [/little john] by Graff · · Score: 1

    Assuming that 1 kW-h costs about $0.10 and that you could just put in the exact amount of energy needed to make up 1 gram of matter:

    e=mc^2
    e=(kg/1000) x 9x10^16
    e=9x10^13 J

    1 kW-h = 3.6x10^6 J
    cost = $1/(3.6x10^7 J)

    price = e x cost
    price = $2.5 x 10^6

    So 1 gram of antimatter costs about $2.5 million of energy. This is not including the costs of the equipment needed to make it, inefficiencies in its production, or any other concerns such as storage costs. In reality the cost of 1 gram of antimatter is probably in the $100 billion range per milligram, according to NASA. This means that the real price is around $10 trillion per gram.

  297. Re: Power source-Just duck to avoid the antimatter by RedLaggedTeut · · Score: 1

    You have to create the antimatter first by splitting normal matter - this consumes lots of energy, more than you get by combining matter and antimatter again.

    So unless you use my hereby patented method to setup a deal with the Quadlipulians(, who live in the antimatter universe,) and trade matter for antimatter, this is not a power plant, although it could act as a battery, if you figured out how to extract energy from X-rays.

    --
    I'm still trying to figure out what people mean by 'social skills' here.
  298. Re:[little john] WHAT? [/little john] by Anonymous Coward · · Score: 0

    It costs $0.15 to $0.20 where I live. At $0.10/KWH I'd be leaving lights on all over the house.

  299. This is why space war ala star trek wont happen by rebelcool · · Score: 1

    Considering the enormous energy generators required to get very far in space any truly warlike race would likely destroy themselves long before escaping their solar systems.

    Constructing a stable containment system for antimatter would be necessary for both space propulsion and as a bomb of unimaginable power.

    Lets just hope we dont turn out to be one of those warlike races.

    --

    -

  300. Re:[little john] WHAT? [/little john] by vettemph · · Score: 1
    My second reply to your post. :)

    antimatter costs absolutly nothing, The cost we would be paying is for the military contractors. If you could milk the tax payers for 40 years over a project where you never have to prove that you actually did anything, you just buy corporate jets, meet the president, send your son to yale and sit on your yatch, would you do it? If you said "I have antimatter in this vessel.", who would call your bluff?

    --
    The government which is strong enough to protect you from everything is strong enough to take everything from you.
  301. Why do we need antimatter weapons? by oneiron · · Score: 1

    This question seems to be popping up, a lot. Well, there's a very obvious answer:

    Asteroids

    1. Re:Why do we need antimatter weapons? by detlev409 · · Score: 1

      This question seems to be popping up, a lot. Well, there's a very obvious answer: Kang. Kodos.

      --
      Howdy.
  302. Fun with helium by MachDelta · · Score: 1

    Hey, if helium makes your voice really high... would anti-helium make your voice really deep? That'd be cool! You could like sell it or something.
    Bet you'd make a lot of money if you could find a large audience primarilly composed of, say, young males plagued with high pitched, nasaly voices. Hmm... now if only I knew of such a place...

    1. Re:Fun with helium by crimson30 · · Score: 1

      Sulfur Hexafluoride does this.

      And it's colorless, odorless, tasteless, water-insoluble, thermally stable, non toxic, and non-reactive.

  303. Re:Oops mis-read on my part.. long day, tired. Sor by Odin's+Raven · · Score: 1

    No worries, we've all had days like that. :-)

    --
    A marriage is always made up of two people who are prepared to swear that only the other one snores.
  304. cold fusion connection by bcrowell · · Score: 1

    One of the people they talk about in the article is Kelvin Lynn, who worked on cold fusion. It's kind of sad. I guess there's only a fairly small number of scientists in the world who are willing to devote themselves to pseudoscience, so any time you hear about something flaky, it's likely to be some of the same personalities involved.

  305. WHY is this modded informative?! by bitrott · · Score: 1

    What, in case ANSI decides to standardize this tomorrow? Well, hot damn, I'm glad I've got a head start on this conversion software niche.

  306. print(Weapon research == basic research); by museumpeace · · Score: 1

    1

    Well in THIS case it would have to be true anyway.
    my high energy physics is a bit rusty but I am not aware that we have a universally accepted theory of WHY IS THERE MATTER MATTER EVERYWHERE BUT BAREELY A POSITRON OF ANTI-MATTER. Ask a physicist why matter/anti-matter symetry is broken. [why, when the soup of photons that was the cooling big bang began to coallesce into matter, we did not get about equal amounts of both spieces] I don't know if they can answer that. So what the AF proposes to do with your tax dollars is develop an application in an area of science where there may not be enough basic theory. For once, the Bush league, which by most measures does not know or care jack shit about basic science is going to wind up buying some. [now THAT is a reason for secrecy I would believe...they don't like being screamed at by taxpayers and laughed at by physicists]

    --
    SLASHDOT: news for people who can't concentrate on work or have no life at all and got tired of yelling back at the TV.
    1. Re:print(Weapon research == basic research); by museumpeace · · Score: 3, Informative

      I couldn't think of it when I posted, but I found a very readable article from someone at SLAC about the mystery of m/am asymmetry

      --
      SLASHDOT: news for people who can't concentrate on work or have no life at all and got tired of yelling back at the TV.
    2. Re:print(Weapon research == basic research); by haruchai · · Score: 1

      Why isn't this modded informative?

      --
      Pain is merely failure leaving the body
  307. I think you guys got it all wrong by extra+the+woos · · Score: 1

    For some reason I'm thinking this thread has it all wrong. I bet this has nothing to do with making a bunch of anti-matter and storing it, putting it in a bomb and delivering it to a target...

    Now, I know next to nothing about physics and any of this stuff but here's what I bet they are trying to figure out.

    It's my understanding that anti-matter is currently made and studied today by using partical accelerators like CERN. So I'M BETTING that the military is looking at ways to perhaps fire beams of particles at targets. Or perhaps several beams that creatie the right effect when they converge with each other at the target. When they hit, or converge, perhaps they would create some (wouldn't hafta be much) anti matter, which would destroy the target matter. The scale would not HAFTA BE BIG AT ALL...

    I'm thinking small here, something like a cutting laser!!! Sort of a slicing type of beam that could slice through anything as easily as scissors cutting through paper. I can't imagine our military wanting to utterly destroy destroy the opponents tank for example, if they could slice the gun and the tracks off cleanly, leaving the raw materials for us, and leaving the people alive to keep information.

    I'm willing to be I'm on the right track here.

    --
    replacing it with NEW Folger's Crystals! (lets see if they notice the difference)
  308. MMMMmmmm.. Antiii Matterrrrrr... by Mulletproof · · Score: 1

    Funny, we've already managed to do that with conventional weapons in under 6 months. That, and we here at Pax Americana LLC want to take those supplies intact. Now your country on the otherhand...

    --
    You need a FREE iPod Nano
  309. Re:[little john] WHAT? [/little john] by drinkypoo · · Score: 1

    The price of that information is just slightly less than the cost of the instructions for building a General Products hull.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  310. Re: The use of tax-dollars by idiots by stock · · Score: 1

    How to keep 1000 positrons confined in a container without touching its walls , which have electrons ? It would at least twice the energy in form of a insane high Voltage to make that happen. So i would say not impossible, but a total idiotic idea. From http://en.wikipedia.org/wiki/Antimatter : A penningtrap might do it. But ya need huge Magnetic and Electrical Field to confine the stuff in the center of the vacuum. Hmm nice...

    And then suddenly El-Queida bombed the local power-station with a $10 Molotov Coctail. Oops. These defense droids must be operating on rat-brains for a long time now.

    G.W. Bush : "Yeah less smoke em out! I'm a war president you know :)"

    Robert

  311. Re:Primus quote by HoshiToshi9000 · · Score: 1
    While performing on stage at Woodstock 2, Primus' bass player Les Claypool made the following comment while looking out across the sea of people in attendance at the gigantic music festival:

    "I'm not that good with numbers, but there's a shitload of people here"

  312. Cyclotron by count_zero011 · · Score: 1

    I'm pretty sure that at the Lawrence Berkeley Labs in Berkeley CA, which happens to be controlled by the government, they have used the cyclotron to create very small amounts of anti matter. I went there several years ago, and I remember being fascinated by the fact that this stuff could release so much energy, yet had to be completely isolated.

  313. test test by Little+Billy+Gates · · Score: 0

    just testing my account, please ingore

  314. What's that in your pocket by Charcharodon · · Score: 1

    Is that enough anti-matter to destroy the world in your pocket or are you just happy to see me?

  315. and you know by geekoid · · Score: 1

    it will go like this:
    Nerd1: "We've got an Anti-Matter Containment Breach!"

    Nerd2 "Doesn't matter"

    Technician "shut up you fat dope, we're going to die!"
    nerd2" I wasn't expecting some kind of Spanish Inquisition!"

    Nerd1"NOBODY expects the Spanish Inquisition! Our chief weapon is surprise...surprise and fear...fear and surprise.... Our two weapons are fear and surprise...and ruthless efficiency.... Our *three* weapons are fear, surprise, and ruthless efficiency...and an almost fanatical devotion to the Pope.... Our *four*...no... *Amongst* our weapons.... Amongst our weaponry...are such elements as fear, surprise.... I'll come in again."

    nerd1&nerd2 "hehehehehe..snort"
    "Kaboom!"

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  316. Man desires Godhood by Anonymous Coward · · Score: 0
    Throughout history, man has striven to control nature. Now that we live in very tamed environments, where we zoom in our little insect-like cars along massive highways, we desire more power over our world.

    Man will not rest until he (we) blows himself off the face of the planet.

    It's rather tragic and sad, but then, so is humanity.

  317. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  318. Re:Anti-Matter Resch.--Whoah! by Anonymous Coward · · Score: 0

    thats what we call the US of Ass in good ole europe now

  319. Re:Some things I don't understand about anti-matte by Deanalator · · Score: 1

    Screw the antimatter, just strap the cat and toast to a dynamo. With enough of those units you could power a city, or maybe the toast and cat would cancel eachother out, as in the case of magnets..

  320. Energy-wise make sense by AtomicBomb · · Score: 1

    Put that the other way round, antimatter bomb may make sense in terms of energy. Now, we know 1MT of TNT equals to about 4.6e15 J.

    A typical modern nuclear station is rated at 1000MW.
    1000MW * 3600 *24 *365 = 3.2e16 J / yr = 6.9 MT TNT of energy /yr. Say, after a decade, the scientists manage to improve the process such that the energy conversion efficiency reaches about 1%. The production of antimatter would equal to 69000 T of TNT of energy /yr.

    Consider the mini-nuke DoD wants to develop has about 1kT yield. A nuclear plant can give sufficient energy for make about 70 antimatter bombs. That's quite a lot and I am quite sure Pentagon is rich enough to devote more than a nuclear plant for the production if it wants.

    Some may ask why small antimatter bomb matters. Mini-nuke bomb can be delivered by a cruise missile or even a 155mm cannon shell anyway... However, it paves the way for satellite based antimatter bomb program. You can load a geosync satellite, place that above whoever you don't like and annihilate at will... That's pretty evil.... but.....

    OTOH, I see there may be peaceful use for this... The energy content of this is so high that it may be useful for triggering fusion reaction for electricity generation. Any physics people around here to comment on this?

  321. read from the lips of the munitons laboratory by Anonymous Coward · · Score: 0

    1. POSITRON ENERGY CONVERSION

    The modern Air Force runs on energy. The service has been using various forms of chemical energy to accomplish its objectives for the 50 plus years of its existence. Recent advances in physics are opening the door to a new realm of energy usage based on the famous E = mc2 relationship. Mass conversion to energy provides the densest source of energy known. Exploration of the possibilities of applying this source of energy storage to solving the Air Forces' problems is important and primary to accomplishing future goals. Whether in the form of antimatter research (positron production, containment and conversion) or in the area of advanced energetics, new, innovative, and efficient sources of energy are a must for future war fighting. Mr. Ken Edwards AFRL/MNAV (850) 882-8876, ext. 3387 kenneth.edwards@eglin.af.mil

  322. What About Naqueta?? by gbulmash · · Score: 1

    We already know that the Air Force has brought naqueta back through the Stargate and it's an amazingly powerful substance.

    Do we really need anti-matter when more and more G'oauld technology is falling into our hands every year. And don't forget the expedition they recently sent to the Pegasus galaxy.

    Anti-matter. Bah.

  323. Phew! by Gorimek · · Score: 1

    At last we will now be safe...

  324. GAG orders illegal? by Bodysurf · · Score: 1

    Don't GAG orders violate the 1st Ammendment to the US Consititution, and are, therefore illegal?

    1. Re:GAG orders illegal? by detlev409 · · Score: 1

      Not in relation to the military. In fact, not even a citzen can divulge information when it's protected under the auspices of national security, as I'm sure is the case here (nope, I didn't RTFA). They call that treason.

      --
      Howdy.
  325. soo, where do we get antimatter? by itzdandy · · Score: 1

    so, where are we to find an abundant source of antimatter? do we make it? because that would seem to be prohibitively expensive.

    if you were to produce a 20Kg(10Kg matter/10Kg anti-matter), how far would the gamma rays travel? this is the equivelent of a 400~MegaTon nuke. would their be a need for such a powerful bomb? in fact, is their a need for a weapon more powerful than the standard nuke?

    as i see it, the nuke is only around as a massive deterent, even if it was not radioactive, their is not point in completely destroying land, it would be simply more efficient to have a non-physically destructive gamma bomb and just kill all the people. with a large gamma bomb you would be able to use the land that was nuked almost immediately. i'm not sure how you would create a gamma bomb without the corresponding BOOM! and falling of buildings though.

    i feel that current deterent weapons like the nuke are sufficient, and that a antimatter bomb would have not practical use on our planet.

    BUT, suppose we are not alone in the universe. What if some alien race shows up with techlogy on par with StarTrek:TNG, we KNOW that nukes don't do much to a galaxy class starships shields, but a 100Kg(2 Gigaton) antimatter missle just might :)

    1. Re:soo, where do we get antimatter? by chadimus · · Score: 1

      Unless it the aliens were made of that terrible DARK MATTER. Which is theoretically immune to all forms of attack except the power of love, and perhaps the Blazing Sword.

  326. Next stop, solamanite! by JoeCommodore · · Score: 1
    First it was firecrackers then dynamite, then you learned to split the Atom, and now the h-bomb - where you explode the very air itself! When will you stop!

    You See that! Your stupid minds! Stupid! Stupid!

    Eros

    --
    "Enjoy what you're doing! If it becomes drudgery, you're doing it wrong!" - Jim Butterfield
  327. agree by js7a · · Score: 2, Interesting
    I agree; containing antimatter is much trickier than most people think. If they all have the same charge, anything aproaching microgram quantities reaches enough internal pressure to make electrostatic confinement impossible. And there's no perfect vaccume, etc. Even if we could afford to make a microgram, I doubt we could store it for effective weapon delivery.

    I'm not sure I'm opposed to basic research into antimatter, though. I just wish that it didn't have to be classified six ways 'till Sunday.

    I have a feeling that this will serve to keep interested physicists destracted from much simpler uranium enrichment.

  328. Re:What if terrorists get their hands on anti-matt by Un+pobre+guey · · Score: 1
    What if terrorists get their hands on anti-matter?

    It would burn their fingers like a son-of-a-bitch!

  329. eno dessim uoY by Anonymous Coward · · Score: 0

    .yllear ton ,yllaer neeb evah dluohs tI

    1. Re:eno dessim uoY by Kiryat+Malachi · · Score: 1

      .reltiH a ton ,inilossuM a ylno m'I yltnerappA

      --

      ---
      Mod me down, you fucking twits. Go ahead. I dare you.
      (I read with sigs off.)
    2. Re:eno dessim uoY by Anonymous Coward · · Score: 0

      .nees sah ./ tsicsaF gnillepS demialcca-fles tsrif yrev eht eb thgim uoY .eciN

  330. Neutrons by jwigum · · Score: 1

    Sounds to me like the thing to do is to try making an "anti-neutron"(udd), since the positrons are being so unruly ;)

    My guess is that antineutrons are harder to produce, since a positron would be much, much lower in mass... right?

    --

    Look behind you...

    1. Re:Neutrons by another_henry · · Score: 1

      That is true, but more to the point antiprotons much much harder to store since they lack net charge and therefore you can't use electric or magnetic fields to keep them away from the walls of your vacuum chamber.

      --
      "Studies have shown that people who eat peanuts live longer than those who do not eat."
    2. Re:Neutrons by coolcold · · Score: 1

      i do think they can still use magnetic field to align and confine those antineutrons since there are magnetic moment. or maybe laser trap? correct me if im wrong...

      --
      I am harvesting funny/good quotes. Please help by putting them in your sigs :)
  331. Google Calculator by fulldecent · · Score: 1

    FYI, you can flat out determine the effectiveness of antimatter explosions using the google calculator.

    1 kilograms in joules

    Note: Use double the ammount of antimetter to calculate it

    --

    -- I was raised on the command line, bitch

  332. Re:From An Anti-Matter Researcher +10 Patriotic by Anonymous Coward · · Score: 0

    Er, no. It was the U.S. Supreme Court. The Florida Supreme Court had ruled to continue recounts of undervotes and overvotes. The U.S. Supreme Court decided 5-4 to stop recounts. I think the Supreme Court decision was politically motivated, but even if Gore had won that decision, the recounts in the areas he had asked for would still have given Florida to Bush. However, if undervotes and overvotes through all the state had been recounted (as really should have happened), Gore would have the state and the election.

  333. I know this guy smith by PSUspud · · Score: 2, Interesting

    I am a physicist, and I was in the Penn State physics department with the physics guy in charge of this project, Gerald Smith. I didn't work with him, but scuttlebutt gets around, and the scuttlebutt wasn't good, either about him or about the project.

    First: yes, as the article states, Gerald Smith was the department chair. However, he didn't stay there very long because he was a jerk.

    Second: I'm much more likely to get hit by a falling safe than an anti-matter bomb. This shit is almost impossible to hold. They've been trying for years just to get enough of it so they can make an anti-hydrogen atom stable enough to see if it accelerates like a hydrogen atom under the influence of gravity. If they can't get 1, how are they going to 10^14 (i.e., 1 billionth of a gram)? And even if they make it, how are they going to store it, move it, use it? Hell, just the cryogenics alone make it non-storable. (Yes, this stuff has to stay cool, or the incredibly difficult job of storing it becomes impossible.) Oh, and if somebody says "positronium" instead of "anti-hydrogen", I say, "even harder". After all, anti-hydrogen has been made (if only incredibly briefly).

    The original inspiration for making and storing anti-hydrogen was space travel, where the value would make up for the pain. Making another boom just doesn't cut it. What we have here is a scientist in need of funding, together with a bunch of schmucks without any common sense.

    Steve Beach, MS in particle astrophysics, 2003.

    --
    ----- Why sig when you can sign? PGP key id 7675D05E
    1. Re:I know this guy smith by chadimus · · Score: 1

      What you said sounds about right to me. It would take a very convincing arguement to get me believeing we are capable of handling anti-matter in anywhere near the quantities they are talking about. When we do develop a gram of anti-matter in a stable containment unit, they should put it right next to my tennis-ball sized black hole just to be safe. That way they can be sent through my stable E-R Bridge to another universe if I get a warning from myself from the future on the tachyon phone I'm just about finished assembling. I think we have a lot to learn from and about anti-matter before we start making corpses with it. By the way, I remember one of my physics profs talking about a method for trapping anti-hydrogen, he was likely talking about the same project you are. Is this it? http://hussle.harvard.edu/~atrap/Background/Trap/T RAP.html [harvard.edu]

  334. Re:How about research them...Big Wrong!! by promethean_spark · · Score: 1

    >The M14 fires the .308 (7.62 x 51mm) cartridge, which provides virtually identical ballistics to the .30-06 (7.62 x 61mm) round in the M-1. All the .308 proved was that you could put a .30-06 into a case about a half inch shorter.

    Modern gunpowder allowed the power of the 30-06 (in 1906) to fit in the smaller case of the 308. 308 is a great round and still in wide use today, however 223 cartridges weigh about half as much, mostly due to the smaller bullet. This allows your infantryman to pack twice as much ammunition with him - which is very important when using fully automatic weapons.

    223 isn't horrible at distance either, if you are reasonably good you'll hit someone at 600 yards - especially since you get twice as many tries.

    The next generation of ammo will be 'smart' as in the XM-29. There the tradeoff will be a larger shell that packs much more punch.

  335. Re: Weapons of Mass Destruction by MadForce · · Score: 1

    Well, these weapons are ALOT more powerful than a Nuke. Sounds like weapons of mass destruction to me. When do we invade ?? or is America lead by a Hypocracy rather than DeMOCracy

  336. As if nukes aren't bad enough... by yohus · · Score: 1

    Now our sepcies has the power to destroy a small town in a convenient, 1 gram package? This kind of technology should never be researched or developed. Just imagine the consequences if such weapons were to fall into the hands of terrorists or even...*gasp*...the military. Instead of the infamous suitcase nukes, we would now have the equivalent in a soda-can sized bomb. We would enter the age of MWMDs...you heard it here first.

    --
    What is life, save a temporary victory over that which causes out inevitable death
  337. Re:How about research them...Big Wrong!! by dont_think_twice · · Score: 1

    It isn't a lie to have been honestly wrong about something.

    It is a lie to claim that you know something, when you really don't know it.

    There is a big difference between "We are pretty sure Saddam has WMDs" and "We know Saddam has WMDs".

  338. Re: Power source-Just duck to avoid the antimatter by cheesybagel · · Score: 1

    That's what the military wants it for anyway. Dense energy storage.

  339. Boo-Boo? by darkmeridian · · Score: 1

    Uh, they can't store anti-matter safely. They want to store it safely. They are doing research to store anti-matter safely. All this because anti-matter is incredibly explosive and may render nuclear bombs obsolete.

    Let's hope they don't do this near my house--or even the same planet.

    --
    A NYC lawyer blogs. http://www.chuangblog.com/
  340. Oh, how scientific... by RobinH · · Score: 1

    Maybe it's just because I grew up in the 80's which was during the height of the cold war (and the movie War Games, of course), but I've actually sat down and thought about the consequences of the U.S. duking it out with another country in a nuclear war (I live in Canada, BTW). These days, of course, it would be called a nukular war, which is a little different, but probably not any more fun.

    I mean, it's not like everybody would die. Something like 40% of Americans live in rural areas, and most parts of the world would not be directly hit. But, the average family anywhere would live a pretty nasty, brutish, and short life after that. Billions would be sick from radiation sickness, which itself is torturous. There's no way current services and infrastructures would actually stay in control. The only way to maintain any kind of control in the harder hit areas would be to enforce a Saddam type rule.

    And during all this, the only people mostly immune from all this destruction will be the people who pushed the button. They'll be safely tucked away in their mountain bunkers, while the rest of the world suffers the consequences.

    Really, try imagining for a second, the complete collapse of society. How would you keep your family fed? How long would your ammo run out, if you bothered to stockpile any before the war? Would we even be able to find anything to eat that wouldn't kill us?

    I know we all like the movie Mad Max, but is that really something to wish upon anyone?

    Man, this world sucks.

    --
    "I have never let my schooling interfere with my education." - Mark Twain
    1. Re:Oh, how scientific... by Creepy+Crawler · · Score: 1

      ---Maybe it's just because I grew up in the 80's which was during the height of the cold war (and the movie War Games, of course), but I've actually sat down and thought about the consequences of the U.S. duking it out with another country in a nuclear war (I live in Canada, BTW). These days, of course, it would be called a nukular war, which is a little different, but probably not any more fun.

      Well.. no movie is anything lke what would likely happen.

      First, foregin relations regarding countries that have nucleonic weapons would have to break down. The US, in all likelyhood, will go to a isolationist-authoritarian government for regards to "Safety".

      With protection treasties and isolations, smaller countries under our protection will be invaded by the nearest power capible of doing so. I would suspect Japan, South Korea, Kuwait, Israel, and a few other areas demoloished or under different rule.

      China would likely take Japan for the resulting technology.

      South Korea and possibly North Korea would be re-annexed by China too. If not, North Korea would take South Korea.

      Kuwait would be taken most likely by United Arab emirate and Iraq supporters. Kuwait has plenty of resources and weak firepower.

      Israel would be demoloished by every Arab nation, likely incomings would be Egypt, Saudi Arabia, Iran, Iraq, and such. Due to home of 3 religions, I doubt that nuclear bombs would be used there.

      With the US falling into a isolationist-authoritarian style government, many people would rebel against that type of system. Some of it, in regards of data mining, rough handling of protesters at political conventions, and the like are already examples of current abuse. Cities would be paramount to a military regime to maintain "security", whether it be for the better or not.

      ---I mean, it's not like everybody would die. Something like 40% of Americans live in rural areas, and most parts of the world would not be directly hit. But, the average family anywhere would live a pretty nasty, brutish, and short life after that.

      Many, not knowing how to survive a nuclear attack would likely be killed, if not by the radiation exposure, but to suffocation, lack of water, or malnourishment. Hopefully, if we did come to a full-out nuclear war, all would be required for a citywide destruction is a 1-3 megaton nuke. That type of yield clears out roughly a 35 mile area of structures. "Toothpicks to the sky" would be left.

      ---Billions would be sick from radiation sickness, which itself is torturous. There's no way current services and infrastructures would actually stay in control. The only way to maintain any kind of control in the harder hit areas would be to enforce a Saddam type rule.

      Some radiation sickness can be provented. The radioactive iodine made by a blast is normally absorbed to the thyroid. If you take 500 mg of KI per day, you can aviod 99% of the effects from (I). The other problem is the deterioration of the small and large intestine. In that type of death, you simply starve from not being able to absorb foods. It'd be better to be shot dead if youre positive that you have this.

      Also, the only rule would be a real rugged individualist style. The gun would be the "law". Also, if there was a nuclear war, water would be a real issue. Water, in itself, cannot easily be made radioactive, but the suspended particulates can be. A distillery could make clean water, but with highly hazardous runoff would be a serious issue. Hydroponics would be a source of foods until the radioactive particles wash themselves off most the land.

      ---And during all this, the only people mostly immune from all this destruction will be the people who pushed the button. They'll be safely tucked away in their mountain bunkers, while the rest of the world suffers the consequences.

      Wrong. How long do you think they can live in those bunkers? Roughly 3 months, with a full implement of staff. They'd be lucky to push 5 months, if the nuclear bombs headed th

      --
  341. Re:Some things I don't understand about anti-matte by Anonymous Coward · · Score: 0

    Assume for a second that the Air Force might know something that "we" don't know. After all, quite a few physicists thought the A-Bomb was impossible as well.

  342. more bombs... more dead people by endoflux · · Score: 0

    all of these comments on energy output and calculations on new potential bombs so blind are you to the amount of death this could cause for how many people now? was millions enough for us? how about another couple million? just another statistic to you isnt it?

  343. "Future Terrorism" by dcollins · · Score: 1

    For Christ's sake. I'm sure the U.S. is the only country that can fund this kind of bleeding-edge massive weapons research at this point.

    What the hell for? For something even more hellacious to be scared witless about after plans leak out in 30 years and we're jumping up and down about how much terrorists would like to use it against us? I can see it now: "We don't want the smoking gun to be a continental-sized antimatter disintegration! How can we not act?".

    Add the automated robot army forces that Congress is demanding, and we can colonize any nation without American casualties, which is the only thing anyone cares about. Blech.

    --
    We know where leadership by an anti-intellectual "strongman" who scapegoats minorities and likes boisterous rallies goes
  344. zerg by Lord+Omlette · · Score: 1

    [http://www.supafine.com/comics/news-archive-15-9- 2003.shtml|antimatter]?

    --
    [o]_O
  345. WMD by jtshaw · · Score: 1

    I don't mean to sound like a raging liberal (ok.. so maybe I do..) but what good is a weapon that does that much damage? The days of armies lining up on battle fields is long over. Using a weapon like this will only increase civilian casualties. There is a reason why we don't want countries developing WMD. We should lead by example, and not development ourselves either.

  346. This is NOT good by Catbeller · · Score: 1

    I've been quietly terrified my entire life that some nitwit would discover an easy way of creating antimatter and let everyone in the bloody world build a TotalConversion bomb.

    Please, paranoid U.S., don't do the research. It'd be the worse catastrophe in the history of the planet. TC bombs would not require rare radioactive materials. Just know-how. I don't know if anyone is trying for a TC bomb, but once someone dreams it up, eventually they will find a way to make it.

    I was hoping to be safely dead when people started to build things I used to dream up.

    Please don't do the whole let's-splice-a-kiler-virus-to-the-common-cold either. We've not spread through local space yet. One bright boy could loose the death of a world.

    We don't need antimatter weapons. We really, REALLY don't. Who the hell are we fighting that we need this horror? Stem cell research is against God's Will but superbombs is okay? What crack is this country on?

    Do we really want the people who can't tell the difference between Al Queda and Iraq to have this kind of power?

  347. No no no. by Anonymous Coward · · Score: 1, Insightful

    You will still have a "nuclear winter" where debris from the earth are blown up into the atmosphere. You will still have a shitload of gamma radiation ionizing and sterilizing everything in the blast radii.

    If you want a super WMD (gee, didn't we invade IRAQ over those supposedly) that won't have alot of fallout, the "neutron bomb" is a better candidate (has little fallout and leaves buildings standing).

    No this isn't about creating anything useful. Don't delude yourself.

  348. All well and good by steveoc · · Score: 1

    This is all well and good for pure research, and may well lead to advances of a decent nature down the track (ie - powering spacecraft, etc)

    BUT - the biggest operational challenge facing the US military at the moment, and for some time to come will be how to maintain a semblance of order and control over occupied cities populated by millions of pissed off ppl armed with ww2 era small arms.

    If the future enemy of the US army is a 14 year old kid with an AK47 and a desire to avenge the death of his parents, then massive anti-matter bombs might be considered overkill.

    For pure military applications, the R&D dollars would be better spent thinking up new and unique ways to control the minds of the masses. Maybe doping the water with MDMA would be a better option. This would also serve to make the occupied zones an attractive place for skilled IT contractors and engineers to move in ...

    A cheaper and far more effective alternative
    would be to have a serious look at re-writing the rule book on operational doctrine.

    1. Re:All well and good by Anonymous Coward · · Score: 0

      No kidding! Free hallucinogens!

  349. Don't Feel Bad by coaxial · · Score: 1

    As many people have told you, you are in fact the evil twin. Don't feel too bad though, you're just "evil" in the nominal sense. Your clean shaven, "good" twin is an utter bastard.

    As Stan told Evil Cartman in the Spooky Fish episode of South Park, "You know Evil Cartman, I like you better than our Cartman.".

  350. New headline by Anonymous Coward · · Score: 0
    Actually, antimatter does not make good bombs.

    Hmp. Very well.

    "Air Force Researching Strange Quark Weapons"

  351. Anti-Matter Secrecy Blanket by Anonymous Coward · · Score: 0

    The act of classifying this topic is to state categorically that a viable device(s) now exists. There is no other credible reason to classify this.
    This reader would hope that Mr Linn is correct in that he found something usefull, and would also hope that this could be put to functional use as a space propellant. Electronium would seem to be a gas, and would lend itself to being used in small amounts, kind of like an exotic carbeurator. Such could be the holy mother of all rockets, and MHD power scavenged from the charged exhaust stream would easily power any ship using such a source for all its other energy needs. The only problem is, as always, storage. Good luck to all you researchers, the future awaits. It is the manifest destiny of man to claim our solar system as ours and to utilize its resources as well as those of our home world. Such would validate hope of a better future for all men and women everywhere.

  352. Re:[little john] WHAT? [/little john] by gront · · Score: 1
    On a funny note this nut whom I've met in person, claims that comets are made of pure antimatter. Riiiight. That should bring production costs down :)

    See, you thought the Stardust comet chasing dust collector was for research. It is actually there to collect antimatter!

    This is so if you don't vote for Bush, Cheney can vaporize you (Ref: unperson crimethink)

  353. practical considerations by snarkasaurus · · Score: 1

    Many posts have mentioned that immense electrical power is required to make antimatter, as are immense particle accelerators, magnets, containment bottles with super hard vacuums etc.

    Outer space has most of the expensive stuff available free.

    A moon base or large orbital station could easilly produce sufficent electricity from solar collectors, and vacuum is free up there. That leaves building the machinery, which while expensive is not impossibly so. Think Superconducting Supercollider but without the need for digging the big friggin' hole for it.

    Down the road a few decades this technology could become practical.

    Uses are many. First is the best rocket fuel ever. Antimatter powered rockets? Small and incredibly fast, super duper cheap on reaction mass given 100% energy conversion.

    Bombs? Same yeild as a nuke, but -clean-. Nice side effect of the gamma radiation is a cockroach killing zone of considerable size outside the blast effect area. One could light an antimatter device off over a city and cook the inhabitants without knocking all that much over, and without poisoning the place for 50 years.

    Ultimate space-based ass kicker, antimatter rockets with antimatter warheads. Kind of like a large scale BFG 9000. Nuke 'em today, move in next week.

    I'd very much like to see it not get built however. The rockets would be nice, but the temptation of a city killer that didn't knock down the city might be too much for certain world leaders.

  354. Very expensive by Goonie · · Score: 1
    There are two problems with this plan: making antimatter is exceedingly costly, and storing it safely is rather a problem.

    To keep a nuclear weapon from exploding is relatively straightforward, because you have to actively push it together with explosives to make it do so. By contrast, an antimatter device desperately "wants" to explode, and you have to constantly work to keep it from doing so. The article briefly mentions the idea of storing antimatter as "positronium" putting a positron and an electron in orbit round each other. I'm no physicist, but creating a material sounds like an astounding technical feat, and there still remains the question of how stable it is.

    The second point is that there is no antimatter available to us in nature; we have to make it in a particle accelerator. This is exceedingly inefficient; from what I've current accelerators are about 0.000004% efficient at doing this. According to the linked paper, physicists think they can improve this to about 0.01% with extrapolations of existing technology. Even that makes the cost of producing explosives purely using matter-antimatter reactions prohibitive.

    As has been said a number of times on this thread, it makes much more sense to use antimatter as a trigger for a fusion reaction. This would provide a scalable, lightweight, and fallout-free (or almost so) weapon at orders of magnitude less expense. The containment problem would still be a serious issue, but the amount of antimatter you'd need to contain would be far, far smaller.

    --

    Any sufficiently advanced technology is indistinguishable from a rigged demo
    --Andy Finkel (J. Klass?)
  355. New weapons by nrlightfoot · · Score: 1

    So that's what the airforce has been working on to fight the Goa'uld with.

    --
    what sig?
  356. There's more to antimatter than opposite charge. by astroboscope · · Score: 1
    Other "quantum numbers", like baryon number, "color" (i.e. strong charge), and helicity (if well defined) are also flipped. If one of these numbers is 0 for a particle, it is also 0 for the antiparticle (-0 = 0). The photon is even its own antiparticle. At this point, I'd like to remind you that you are surrounded by photons, so you can start worrying while I expound upon the neutron.

    The neutron is made of 2 down (electric charge -1/3 each) quarks and an up (electric charge +2/3), and has a magnetic dipole moment. The antineutron is made of antiquarks and has the opposite magnetic dipole moment.

    Being bombarded by photons and wondering why you still exist? In a matter-antimatter annihilation, the energy and momentum are carried away by two photons. So in a photon-antiphoton annihilation, 2 photons go in, and 2 (indistinguishable) photons come out. Yawn. Not that photons interact with each other anyway.

    --
    If we were ants living on a Rubik's cube, differential geometry would be a little more confusing.
  357. Asymmetric warfare... by Goonie · · Score: 1
    I doubt we're going to see antimatter cheap enough to be more than a research material for decades, but when we can turn it into devices which make it impossible for anyone to field an army it essentially makes conventional warfare into suicide. Isn't that what you wanted?

    That's essentially what America has already. The response of its enemies? Developing nuclear weapons of their own, and resorting to terrorism...

    --

    Any sufficiently advanced technology is indistinguishable from a rigged demo
    --Andy Finkel (J. Klass?)
  358. Re:Wrong warriors, wrong workplace, wrong spacetim by Mulletproof · · Score: 1

    As sarcastic as this is all going to sound, the nuke is passe. Seriously, we've lived with the things for over 50 years and it's not the harbringer of destruction it use to be. Part of that is because nobody has lit one off in anger in the last half century. That, and everybody wants one. it's the platue in weapondry. But antimatter? That's the new exotic menace. I mean come on, it's anti-matter... The name alone whispers untold amounts of devestation far beyond that of 'conventional' nuclear weapons. We're talking the stuff of legends here.

    And that's ultimately the greatest use of something like this-- The mere threat of being utterly annihilated by some dark, exotic super weapon can very well be what makes the difference between saber rattling and something worse. Of course, side by side with your shiney new superweapon must be the will to actually use it. A weapon your enemy knows you won't use is absolutely worthless, regardless of how legendary it is.

    That said, you're right. Space is definitely the best place for these badboys. But then, the same was probably said about nuclear weapons too-- Much too dangerous for Earth, but the evolved into a systems with serious redundancy built into them.

    --
    You need a FREE iPod Nano
  359. Speaking of Spaceships... by bill_mcgonigle · · Score: 1

    The Air Force is also today talking about a new microwave weapon.

    The interesting bit is that they're using a superconductive coating in the microwave weapon. And it's about the size of a beer keg, they say, so probably not massively supercooled.

    In space, this could extend the efficiency of the antimatter reactor.

    And I'm sure it's just a cooincidence that this is coming out of Wright Patterson AFB, where they took the Roswell ship. :) Some will read, "We finally have the materials where we're ready to build this generator," as, "we've had a design for this thing for sometime but we just know are understanding the materials necessary to make it work." Yeah, I'm probably feeding the conspiracy theorists.

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  360. Crarzy crazy world by Anonymous Coward · · Score: 0

    I guess USA must invade itself due to a secret program to develop weapons of mass destruction.

  361. But look for dangers... by mikelang · · Score: 1

    It would definitely make the life of a terrorist easier. Unfortunately most small and portable military technologies did, didn't they?

    Except for nuclear (so far), but this one is easily detected by radiation.

    I'm not against super-fuel-cells, but don't want to be cooked :-).
  362. based on their past actions, and the evidence ... by Anonymous Coward · · Score: 0

    provided to us, we must assume that the air force is developing weapons of mass destruction related program activit.. .err wait.. wrong.. uhmm. . yeah

  363. Dan Brown by guru_Stew · · Score: 1

    Has no one read Angels and Deamons? Dont you know what will happen when the pope gets his hands on this stuff!!!

  364. Don't forget to warm your anti matter! by Anonymous Coward · · Score: 0

    If they shut down the engines completely, you've got to have 30 minutes to warm up the anti-matter. You can't change the laws of physics.

  365. warp core breach? by ZeoRanger · · Score: 1

    Obligatory Star Trek / Photon Torpedo reference here.

    -z-

    --
    -z-
  366. reminds me... by ducomputergeek · · Score: 1

    of some TV show with the same concept...how wierd is that...

    --
    "The problem with socialism is eventually you run out of other people's money" - Thatcher.
  367. Now that's a smart bomb... by d474 · · Score: 1
    From TFA: "Thus, in principle, a positron bomb could be a step toward one of the military's dreams from the early Cold War: a so-called "clean" superbomb that could kill large numbers of soldiers without ejecting radioactive contaminants over the countryside.
    Phew! For a minute there, I thought us citizens had something to worry about.

    Don't think I'll be joining the Army any time soon...wouldn't want to be a valid target for this damn thing.
    --
    Authority questions you. Return the favor.
  368. On the other hand... by d474 · · Score: 1
    "If successful, this approach will open the door to storing militarily significant quantities of positronium atoms."
    If unsuccessful, this approach will pretty much tear a hole in the North American continental plate the size of which will make the Grand Canyon look like your girlfriend's [expletive deleted].
    --
    Authority questions you. Return the favor.
  369. I'll tell you what... by Art+Tatum · · Score: 1

    Look ma--no hands!

  370. Has anyone ever answered this question? by Lord+Kano · · Score: 1

    Why there is such an overabundance of matter. All of the matter in the universe is surplus, all of it particles that have not been annihilate by antimatter particles.

    Why is there so much of a surplus? Is there an anti-universe just waiting to annihilate the one we live in?

    LK

    --
    "Hi. This is my friend, Jack Shit, and you don't know him." - Lord Kano
    1. Re:Has anyone ever answered this question? by Anonymous Coward · · Score: 0

      Yes there is. You are incompetent. Your agonizer please.

    2. Re:Has anyone ever answered this question? by Geoff+St.+Germaine · · Score: 1

      There is an "overabundance" due to what is called Charge-parity violation. It is an very small (1 part in a billion) asymmetry in the production of particle-antiparticle pairs. For every 1 billion particle-antiparticle pairs produced, there is one excess particle produced. This results in the matter dominated universe we see. This has been shown experimentally as well as theoretically.

    3. Re:Has anyone ever answered this question? by Lord+Kano · · Score: 1

      I've been reading Hawking, and I know of the overabundance exists. What I'm wonder is why it exists.

      LK

      --
      "Hi. This is my friend, Jack Shit, and you don't know him." - Lord Kano
    4. Re:Has anyone ever answered this question? by Geoff+St.+Germaine · · Score: 1

      I believe I answered that. It is the CP violation. That is why we live in a matter dominated universe. This would have occured in the very early universe when the energy density was still high enough that there were enough 931.5 MeV photons around to produce proton-antiproton pairs. If you have an extensive background in Physics I can describe how it's arrived at in the theory, however it still probably won't be too helpful as the result falls out from a lot of fairly complicated math (Graduate to Post Graduate level). -Geoff

  371. What a shame by Anonymous Coward · · Score: 0

    OK, OK, I know alot of these comments are jokes...but:- It's a shame that so many posters have taken the "Let's build the biggest weapon" route. If current circumstances prove anything, you can have the most technologically advanced weapon in the world, but if you don't know who to aim it at what is the point? My worry is that whichever government achieve this weapon first (because you can bet it's not only th e US who are working on this), they could get so paranoid about their 'National Defence' that they decide to use it anyway. It's great to think about the possibilities of these semi-understood sciences, but why must we always get so gung-ho about it? As a previous poster has said, why not fund a scientific research establishment instead of a military one? And yes, I have worked for a defence organisation, so I'm not a total pacifist! Just seeing things from a different perspective.

  372. Useful... by zxflash · · Score: 1

    Every little step towards energy independence is a good thing...

    --

    All the torrents you could want.
    1. Re:Useful... by zpok · · Score: 1

      "Every little step towards energy independence is a good thing..."

      Reminds me of Terry Pratchett's famous quote "... but set a man on fire and he'll be warm for the rest of his life."

      --
      I think, therefore I am...I think.
  373. Does anyone else get Stargate flashback? by fibberish · · Score: 1

    The real excitement, though, is this: If electrons or protons collide with their antimatter counterparts, they annihilate each other. In so doing, they unleash more energy than any other known energy source, even thermonuclear bombs.

    This is kinda reminding me of the ep. where they talked to those Tallons who provided their neighbouring planet with an unlimited power-supply -- resulting in their destruction.

    We finally find a way to create massive amounts of energy and what is it used for? Weapons.

    Yay for the dumb-ass retards who came up with that bright idea.

  374. Dont even bother burning.... by 6th+time+lucky · · Score: 2, Funny

    There is 58 megatons of books there we could drop on 'the enemy'.

    So, roughly speaking 1.5g of antimater, is equivelent to just dropping the entire contents of the Library of Congress, on a 1cm-odd square...

    1. Re:Dont even bother burning.... by geggibus · · Score: 1

      Poor square..

  375. Standard unit suggestion: by Anonymous Coward · · Score: 0

    The bus. After all, its already used to describe the size of small asteroids.

    Since we are talking about the amount of energy released when two particles collide, perhaps it could be expressed in terms of the energy converted by the head-on collision of two 8000kg busses travelling at, say, 50kph (metric makes the maths easier).

    So the annihilation of 1g of matter and anti-matter is equivalent to 23.74e300 busses, and would probably result in the deaths of 76.63e380 passengers*

    *All figures pulled directly from my ass.

  376. Re: Weapons of Mass Destruction by Patrik_AKA_RedX · · Score: 1

    Vaporize the Arabian world and, yes, the US would be able to win the war against terrorisme. I guess Bush would have already done it, if he hadn't had to keep the oil's safety in mind....

  377. goatee... by 6th+time+lucky · · Score: 1

    did anyone else read that as "i have a goatse..." and get conflicting images with "clean shaven..."

    i think i need to get out more...

    1. Re:goatee... by Anonymous Coward · · Score: 0

      yes, yes, you do...

  378. Ah... by Anonymous Coward · · Score: 0

    Weapons of mass destruction.

  379. Rumour mill by Karem+Lore · · Score: 1

    I heard that this is Duke's favorite weapon in Duke Nukem Forever...They're just waiting for the reality of this weapon to appear before releasing the game cause they want a more realistic feel for the game.

    --
    When all is said and done, nothing changes...
  380. Proposal by 6th+time+lucky · · Score: 1

    It may not fly, but how about we redesigntate 1g of antimater from being equivelent to 23 space shuttle fuel tanks, to just "1 can of whoop-ass".

    Do we need a poll?
    "How much energy is in 1g of antimatter"
    a) 23 SSFT
    b) 1 can of whoop ass
    c) 40 MTons of TNT
    d) It is exactly.... Joules
    e) ummmm...

  381. A question regarding antimatter by master_p · · Score: 1

    What happens if an object that touches another object is anihillated? do both objects disappear or only the one that was fired at?

    1. Re:A question regarding antimatter by Geoff+St.+Germaine · · Score: 1

      Both.

  382. Re:My guess is this has been going on for a long t by Anonymous Coward · · Score: 0

    I'd be shocked if this research hasn't been going on since the early days of the Cold War.


    Since the first atom of anti-hydrogen wasn't created until 1995, it would shock me if it was.

  383. MOD PARENT DOWN! by Anonymous Coward · · Score: 0

    The parent's post is not related in any way to its parent. The only reason that a3217055 replied to that post was so that his/her post would appear closer to the top and thus possibly accumulate more mod points. This is a form of kharma-whoring, and should not be rewarded.

  384. Is that metric? by sleepcountry · · Score: 1

    A metric shitload?

  385. Not for long... by essreenim · · Score: 1

    That dimwit of a president of yours will soon be gone, and that money will be used to repair the already inflicted damage on your country, a litle bit might be left for it to operate on a shoestring.

    1. Re:Not for long... by Anonymous Coward · · Score: 0

      Awww... Kim Jong? Is that you? You want some anti-matter too?

      No anti-matter for you until you clean your country and eat your greens.

    2. Re:Not for long... by Directrix1 · · Score: 1

      I don't think replacing a dimwit with another dimwit will make matters any better. At least as far as this is concerned. I'm sure the military will develop this no matter what.

      --
      Occam's razor is the blind faith in the natural selection of least resistance and in universal oversimplification. -- EF
  386. So, time to invade the US? by jpop32 · · Score: 1

    the (US) Air Force is actively pursuing antimatter weapons.

    Well, shouldn't at this point the rest of the world start thinking about pre-emptively striking the US? I mean, they are openly and actively developing WMDs! These are no 'weapons related programs' (as some other countries got invaded for), this is the real thing! And even more powerful than nuclear technology!

    Time to act is NOW!

  387. Meh. by SatanicPuppy · · Score: 1

    Some early artificial hearts were powered that way as well.

    "During the same period, Los Alamos developed a medical-grade fuel for use in cardiac pacemakers and early artificial hearts. The fuel in the artificial hearts was made of 90 percent enriched plutonium-238 and provided up to 50 watts of power. Some of the early pacemakers are still in use; some have been returned to Los Alamos' Plutonium Facility for recovery. " Link

    Since alpha rads don't penetrate the skin, it's safe, as long as it doesn't fragment and get carried through the body. Still pretty scary though.

    --
    ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
  388. research preceeds fruition by Anonymous Coward · · Score: 0

    Positrons have been around for decades.

  389. Re:Wrong warriors, wrong workplace, wrong spacetim by Doc+Ruby · · Score: 1

    And when the terrorism you describe evolves to antimatter, it will make the "unthinkable" thinkable: nuking enemies like we now carpetbomb, gas and poison each other. Upping the ante(i) will make it that much easier, more likely, that we use those unusable weapons. Which is exactly the programme favored by that sick mass murderer, don Rumsfeld, as he changed US military policy to fit "tactical" nuke tips to missiles in his first years back at the Pentagon, under Bush. Other WMD news last week included Bush's spastic agreement with Kerry that "newkular proliferation" is the #1 threat to America's security, while Kerry trumped him with absolute assurances that he will scrap America's new nuke development programme. We're the worst source of new WMDs, and we underwrite the WMDs, especially nuclear, proliferation around the world against us. We've got to stop thinking the unthinkable, and be satisfied with the vast devastation we've already got in store in our boring old missile silos. We're the biggest terrorist on the planet, and we've got to keep the cap on the business.

    --

    --
    make install -not war

  390. Re:Some things I don't understand about anti-matte by tetsuji · · Score: 1


    This sounds like the ultimate button-down weapon to me.

    It would be possible to plunk down an antimatter warhead in the middle of a city and legitimately be able to claim that any sort of attempt to defuse the bomb would cause detonation. The enemy (however you define that) is forced to surrender or must abandon the city, which work out to the same thing in practical terms.

    Also, of course, such a weapon would be the ultimate tool for a despotic government wishing to control its own people.

  391. Another conspiracy exposed by Anonymous Coward · · Score: 0
    Nasa Engineer: "Captain, Captain..I canno make the shuttle go faster"

    Flight Director: "We've got to get more speed or our budget will be cut"

    Nasa Engineer: "Aye Captain, I'll use the antimatter, but I dunno if it will be stable"

    Flight Director: "Don't worry, if it blows we'll blame it on loose foam...No one will ever no"

  392. And that's worse? by Engineer-Poet · · Score: 1
    Nuclear weapons aside (60-year-old technology that they are), our pinpoint weapons have allowed this "war" to be prosecuted with a lot fewer deaths on both sides than could have been done as recently as 1990. War with WPD (weapons of point destruction) is less deadly, and the only thing which would make it more so is a return to the WMD of the past.

    One of the things preventing us from eliminating Iran and N. Korea as nuclear threats is the inability to neutralize their facilities without throwing up large amounts of fallout and killing many thousands downwind (not all of them enemy nationals either). If we were in a position to blow a hole in the ground and destroy their centrifuges and machine shops without contaminating the area with fission products, we'd be able to force the Teheran regime to blink.

  393. Re:What if terrorists get their hands on anti-matt by Geoff+St.+Germaine · · Score: 1

    Well, at this point it is unreasonable for them to get their hands on it. It is very hard to contain and it doesn't exist in sufficient quantities. I suppose in the future they could get some, after the proliferation of antimatter producing devices as well as suitable storage methods for large amounts of it (large relatively speaking, maybe a gram or so).

  394. [OT] sig by BandwidthHog · · Score: 1

    It's 'Pirsig.'

    --

    Quantum materiae materietur marmota monax si marmota monax materiam possit materiari?
  395. OT: Your sig by Art+Tatum · · Score: 1

    Just out of curiosity, why does your page say "next" November? Has it just been up for a while?

    1. Re:OT: Your sig by Pig+Hogger · · Score: 1

      Yup. It's been there since about July.