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Thunderstorms Proven To Create Antimatter

radioweather writes "Scientists using NASA's Fermi Gamma-ray Space Telescope have detected beams of antimatter from thunderstorms in the form of positrons hurled into space. Scientists think the antimatter particles were formed in a terrestrial gamma-ray flash, a brief burst produced inside thunderstorms and shown to be associated with lightning. 'These signals are the first direct evidence that thunderstorms make antimatter particle beams,' said Michael Briggs, a member of Fermi's Gamma-ray Burst Monitor team. He presented the findings at a news briefing at the American Astronomical Society meeting in Seattle."

153 comments

  1. Death ray? by Anonymous Coward · · Score: 0

    How long before somebody thinks of harvesting the antimatter part and turning it into a ...

    1. Re:Death ray? by TheRaven64 · · Score: 4, Informative

      Harvesting antimatter is incredibly hard. It's not like you can just stuff it in a shoe box. You need to make sure that it doesn't come into contact with any normal matter. This means putting it in a vacuum and using magnetic fields to make sure that it doesn't touch the sides of the container. Scientists only managed to make a stable antimatter container for the first time a few months back.

      --
      I am TheRaven on Soylent News
    2. Re:Death ray? by Anonymous Coward · · Score: 2, Interesting

      Maybe where you're living (US ?). But at CERN, scientists of the LEAR experiment have managed to produce, trap, and store antimatter as far back as 1995. And even to create anti-hydrogen atoms out of it.

    3. Re:Death ray? by m50d · · Score: 2

      The anti-hydrogen atoms were only stable in the particle-physicist sense - IIRC they lasted about 5 seconds. If someone's built an antimatter container that can keep it around for, say, long enough to fly it across the atlantic, that really is a new achievement.

      --
      I am trolling
    4. Re:Death ray? by Anonymous Coward · · Score: 0

      Well, does it really matter what the common man thinks stable means when applied to anti-matter ?

    5. Re:Death ray? by Anonymous Coward · · Score: 0

      Harvesting antimatter is incredibly hard. ...

      And you know this how?

    6. Re:Death ray? by Anonymous Coward · · Score: 0

      I don't know for you, but I can fly across the atlantic in 5 seconds. Or I could if I was an anti-electron.

    7. Re:Death ray? by Anonymous Coward · · Score: 0

      YOUR shoe box. I have a bed made out of the stuff. Don't think that what goes for you applies to everyone, buddy.

      Besides, I think everyone reading /. on any semi-regular basis already knows about the whole "capturing anti-matter" thing, so no need to repeat stuff like you're the only one who keeps up on the news.

    8. Re:Death ray? by Dynetrekk · · Score: 2

      Really? I seem to recall a few particle accelerators - LEP and Tevatron come to mind - that can (or could, in LEP's case) keep stable antimatter beams for hours. I'd agree that it's only antiprotons or antielectrons, but it's still antimatter, and stable for tens of hours. Also, you can make a death ray, instead of a silly bomb!

    9. Re:Death ray? by ziggyzaggy · · Score: 1

      nonsense, article states the rate of production is something like 500 events a year over the whole planet. You're not going to build a planet-wide harvesting system, and if you could 500 anti-protons do not a death ray make.

    10. Re:Death ray? by Anonymous Coward · · Score: 0

      Really? I seem to recall a few particle accelerators - LEP and Tevatron come to mind - that can (or could, in LEP's case) keep stable antimatter beams for hours.

      So you fully agree with TheRaven64 that you need to keep it in a vacuum and confined by magnetic field, which is exactly what accelerators do.

      You're just being pedantic because he/she/it didn't throw in the qualifier "which can store antiparticles at rest, rather than relativistic beams". Folks like you are why lawyers control our lives.

    11. Re:Death ray? by mldi · · Score: 1

      YOUR shoe box. I have a bed made out of the stuff. Don't think that what goes for you applies to everyone, buddy.

      Besides, I think everyone reading /. on any semi-regular basis already knows about the whole "capturing anti-matter" thing, so no need to repeat stuff like you're the only one who keeps up on the news.

      You're assuming everyone has kept up on this news. It might be new to somebody, in which case this is incredibly helpful.

      --
      If you aren't suspicious of your government's actions, you aren't doing your job as a responsible citizen.
    12. Re:Death ray? by Frank+T.+Lofaro+Jr. · · Score: 1

      If someone's built an antimatter container that can keep it around for, say, long enough to fly it across the atlantic, that really is a new achievement.

      Considering that TSA won't even let you bring a shampoo bottle on a plane, I don't think they'll be allowing antimatter on!

      --
      Just because it CAN be done, doesn't mean it should!
    13. Re:Death ray? by Anonymous Coward · · Score: 0

      You need to make sure that it doesn't come into contact with any normal matter.

      Duh... just create the container from antimatter. Do I have to take care of everything?

    14. Re:Death ray? by pavon · · Score: 2

      Scientists only managed to make a stable antimatter container for the first time a few months back.

      To clarify, they have been able to store charged antimatter particles using magnetic containment for quite some time. It is only recently that they have been able to store neutral antimatter particles, like complete hydrogen atoms.

    15. Re:Death ray? by shadowfaxcrx · · Score: 1

      Yes.

      --
      "I disagree with you" does not equal "flamebait."
    16. Re:Death ray? by Shakrai · · Score: 1

      They'll be fine with it as long as it's stored in bottles that contain no more than 3oz and you keep them all in a clear plastic bag for easy inspection.

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    17. Re:Death ray? by m50d · · Score: 1

      Well sure. But being able to carry around antimatter in a box (or rather a shipping container) would be nice, and I suspect very useful for physics (letting labs around the world get a supply for study from somewhere bigger).

      --
      I am trolling
    18. Re:Death ray? by Smallpond · · Score: 1

      Well sure. But being able to carry around antimatter in a box (or rather a shipping container) would be nice, and I suspect very useful for physics (letting labs around the world get a supply for study from somewhere bigger).

      And think of the surprise on the face of the TSA guy who opens it!

    19. Re:Death ray? by Smallpond · · Score: 1

      Harvesting antimatter is incredibly hard. ...

      And you know this how?

      I asked Barbie.

    20. Re:Death ray? by tqk · · Score: 1

      Besides, I think everyone reading /. on any semi-regular basis already knows about the whole "capturing anti-matter" thing, so no need to repeat stuff like you're the only one who keeps up on the news.

      You're assuming everyone has kept up on this news. It might be new to somebody, in which case this is incredibly helpful.

      As much as I enjoy hangin' out with y'all here on /., I very much doubt that anti-matter specialists come here for the latest news on their specialty. Cern Courier, Physics Today, and Symmetry Magazine are fun reading, though perhaps some real physicists (I'm not one) can suggest better.

      --
      "Tongue tied and twisted, just an Earth bound misfit ..." -- Pink Floyd.
    21. Re:Death ray? by ElusiveJoe · · Score: 1

      If someone's built an antimatter container that can keep it around for, say, long enough to fly it across the atlantic, that really is a new achievement.

      ...yes, just across the Atlantic would be enough, but the container must not be too large for the airplane... like B-2, for example. Or we could use a rocket. If you have any information on the matter (or anti-matter), send me an e-mail: die_commie_die@mil.gov.us

    22. Re:Death ray? by h4rm0ny · · Score: 1

      I am. And boy does it bring a glow to my heart. :)

      --

      Aide-toi, le Ciel t'aidera - Jeanne D'Arc.
    23. Re:Death ray? by c0lo · · Score: 1

      The anti-hydrogen atoms were only stable in the particle-physicist sense - IIRC they lasted about 5 seconds. If someone's built an antimatter container that can keep it around for, say, long enough to fly it across the atlantic,...

      Why? Would be US interested in importing anti-hydrogen? What for? Create an Anti H-bomb?

      ... that really is a new achievement.

      So a partial achivement in 1995 is not good enough?

      --
      Questions raise, answers kill. Raise questions to stay alive.
    24. Re:Death ray? by cbiltcliffe · · Score: 1

      Harvesting antimatter is incredibly hard. ...

      And you know this how?

      He's only got one hand, you insensitive clod!!

      --
      "City hall" in German is "Rathaus" Kinda explains a few things......
    25. Re:Death ray? by Nazlfrag · · Score: 1

      Bah! You wouldn't get 2.81794 femtometres.

    26. Re:Death ray? by mathfeel · · Score: 1

      Harvesting antimatter is incredibly hard. It's not like you can just stuff it in a shoe box. You need to make sure that it doesn't come into contact with any normal matter. This means putting it in a vacuum and using magnetic fields to make sure that it doesn't touch the sides of the container. Scientists only managed to make a stable antimatter container for the first time a few months back.

      They were able to contain anti-hydrogen for the first time a few months back. This is hard because anti-hydrogen has no net charge. On contrary, this group at my old school http://positrons.ucsd.edu/, has been trapping and storing (for long durations measured in days!) positron for many years.

      --
      The only possible interpretation of any research whatever in the 'social sciences' is: some do, some don't
    27. Re:Death ray? by m50d · · Score: 1
      Why? Would be US interested in importing anti-hydrogen? What for?

      It's not about moving it between countries, it's about being able to make it in one big accelerator and then transport it to labs around the world. That would be very useful for science.

      So a partial achivement in 1995 is not good enough?

      Most new achievements are incremental improvements on previous ones.

      --
      I am trolling
  2. Posibilities by Anonymous Coward · · Score: 1

    So, when can we place those beams on shark heads?

    1. Re:Posibilities by Anonymous Coward · · Score: 4, Funny

      we'll first need to breed anti-sharks to carry them.

    2. Re:Posibilities by EnsilZah · · Score: 1

      I believe standard sharks would suffice if they can generate a powerful enough electromagnetic field.

    3. Re:Posibilities by shutdown+-p+now · · Score: 1

      we'll first need to breed anti-sharks

      How about guppies?

    4. Re:Posibilities by Billlagr · · Score: 1

      I think anti-sea bass are readily available, there might be a delay with the frickin' anti-sharks and the frickin' anti-matter death beams mounted on their heads

    5. Re:Posibilities by Viperpete · · Score: 2

      Then bearded Fonzie can jump the anti-sharks with lasers.

      --
      loose: not fitting closely or tightly != lose: to suffer the deprivation of
  3. Call Tesla by McTickles · · Score: 2

    He'll want to know he was right...

    --

    http://www.twilightcampaign.net/

    1. Re:Call Tesla by Moryath · · Score: 3, Funny

      Scientists think the antimatter particles were formed in a terrestrial gamma-ray flash

      Screw that. Quick, someone get Bruce Banner up there in an airplane!

    2. Re:Call Tesla by Anonymous Coward · · Score: 5, Funny

      Scientists think the antimatter particles were formed in a terrestrial gamma-ray flash

      Screw that. Quick, someone get Bruce Banner up there in an airplane!

      That'll make him angry. You wouldn't like him when he's angry.

    3. Re:Call Tesla by 2names · · Score: 2

      Tesla *knew* he was right. He just didn't have enough time to prove it.

      --
      "I'm just here to regulate funkiness."
    4. Re:Call Tesla by Bill_the_Engineer · · Score: 1

      Tesla is dead. I doubt he cares now...

      --
      These comments are my own and do not necessarily reflect the views or opinions of my employer or colleagues...
    5. Re:Call Tesla by hostyle · · Score: 1

      Would that make him an anti-Tesla?

      --
      Caesar si viveret, ad remum dareris.
    6. Re:Call Tesla by Requiem18th · · Score: 1

      He does care or else he wouldn't have invented a machine to communicate beyond the grave.

      --
      But... the future refused to change.
    7. Re:Call Tesla by mikael · · Score: 1

      ...It's Life Jim, but not as we know it...

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    8. Re:Call Tesla by oldmac31310 · · Score: 1

      But the one that you wouldn't like when he is angry is Dr. David Banner, not Dr. Bruce Banner.

      --
      http://www.acetonestudio.com
    9. Re:Call Tesla by skarphace · · Score: 1

      Zombie Tesla?

      --
      Bullish Machine Tzar
  4. Destroy the planet! by halcyon1234 · · Score: 5, Funny

    So this is exactly like the LHC, right? How can clouds be so irresponsible to create ANTIMATTER that will destroy the entire planet, just because they can! I saw what happened when Neo let a single drop of antimatter fall out of the Millennium Falcon to destroy the elves' homeworld. Why won't Obama do something about this "lightning"? He's in the pocket of the lightning rod industry!

    1. Re:Destroy the planet! by TheRaven64 · · Score: 4, Funny

      I saw what happened when Neo let a single drop of antimatter fall out of the Millennium Falcon to destroy the elves' homeworld

      I know it's a joke, but somehow I still want to see that film...

      --
      I am TheRaven on Soylent News
    2. Re:Destroy the planet! by drinkypoo · · Score: 1

      Coming soon to a Kinect-motion-captured Machinima near you

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    3. Re:Destroy the planet! by Colonel+Korn · · Score: 1

      I saw what happened when Neo let a single drop of antimatter fall out of the Millennium Falcon to destroy the elves' homeworld

      I know it's a joke, but somehow I still want to see that film...

      You'll see basically that in the Imagination Land episodes of South Park.

      --
      "I zero-index my hamsters" - Willtor (147206)
    4. Re:Destroy the planet! by zandeez · · Score: 3, Funny

      Change the names and it's basically the new Star Trek film...

    5. Re:Destroy the planet! by Anonymous Coward · · Score: 0

      Actually, just throw an "r" in there.

      I saw what happened when Nero let a single drop of antimatter fall out of the Millennium Falcon to destroy the elves' homeworld

    6. Re:Destroy the planet! by Anonymous Coward · · Score: 0

      So... lightning causes cancer? I doubt the pharmaceutical industry is going to let lightning go away....

    7. Re:Destroy the planet! by sgunhouse · · Score: 1

      Somehow I thought it was a reference to the latest Star Trek film ...

    8. Re:Destroy the planet! by Anonymous Coward · · Score: 0

      So this is exactly like the LHC, right?

      More like LHC combined with the Deepwater disaster. I blame the T-storm party with their deathclouds, and Fox news. After all, what do all fox news stations run on? That's right... ELECTRICITY.

      Why won't Obama do something about this "lightning"? He's in the pocket of the lightning rod industry!

      He had no choice, lightning is too big to fail. It's just another symptom of our dependence on weather, which I'm pretty sure was set up by George W Bush.

    9. Re:Destroy the planet! by Anonymous Coward · · Score: 0

      I saw what happened when Neo let a single drop of antimatter fall out of the Millennium Falcon to destroy the elves' homeworld.

      Thanks for the spoiler you insensitive clod!

    10. Re:Destroy the planet! by cforciea · · Score: 1

      Okay, that's the hardest I've had to try in weeks to not burst out laughing at work so that people didn't know I was reading Slashdot comments. Bravo.

    11. Re:Destroy the planet! by Anonymous Coward · · Score: 0

      Change the names and it's basically the new Star Trek film...

      And then, somehow, I no longer want to see the film.

    12. Re:Destroy the planet! by noidentity · · Score: 1

      It's worse than that. Think about it... this antimatter has been created by thunderstorms for centuries already. Therefore, it's certain that one created a black hole and it's already swallowed Earth, and we're already on a one-way path to total annihilation.

    13. Re:Destroy the planet! by sharkey · · Score: 1

      So this is exactly like the LHC, right?

      No, it's more like a positron glider.

      --

      --
      "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  5. So, here's a question... by RyanFenton · · Score: 2, Interesting

    Does this process potentially make the world more massive, in creating particle pairs - one of which escapes into space? Would this potentially be a way of testing gravity theories in controlled circumstances?

    Ryan Fenton

    1. Re:So, here's a question... by Sockatume · · Score: 0, Offtopic

      The antiparticles are being formed, without a matter counterpart, by high-energy reactions and not by the separation of virtual particle pairs as at the edge of an event horizon.

      --
      No kidding!!! What do you say at this point?
    2. Re:So, here's a question... by thethibs · · Score: 1

      A thunderstorm is hardly "controlled circumstances." And who said anything about pairs?

      --
      I'm a Programmer. That's one level above Software Engineer and one level below Engineer.
    3. Re:So, here's a question... by AlecC · · Score: 5, Informative

      I doubt strongly that they are being formed "without a matter counterpart". That would violate a number of cherished conservation rules. A positron/electron pair is formed when a gamma ray of sufficient energy passes close to a nucleus. But it would be difficult to detect the new electrons in the maelstrom of displaced electrons that is a thunderstorm, whereas the positrons are extremely distinctive,

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    4. Re:So, here's a question... by Anonymous Coward · · Score: 0

      No, lighter.

      The positron pair formed may have a real mass, but the energy is supplied by the lightning. Per E=mc2, that's just different manifestations of the same thing. Now, one half of the pair escapes earth. That's a real mass (and energy) loss.

    5. Re:So, here's a question... by nedlohs · · Score: 1, Insightful

      No, because for every pair of which a positron escapes and a electron doesn't, there's another pair for which an electron escapes but the positron does not. On average it will make no difference.

    6. Re:So, here's a question... by nedlohs · · Score: 2

      Charge conservation has something to say about pairs. And evidence of a violation of that would be in the headline...

    7. Re:So, here's a question... by Sockatume · · Score: 1

      Ah, I'll leave the particle physics to those who know a bit better from now on. :) You're right, there's all sorts of violations that would've stood out if I'd thought about what I was writing some more.

      --
      No kidding!!! What do you say at this point?
    8. Re:So, here's a question... by toppavak · · Score: 5, Informative

      Indeed, the positrons are not escaping into space, even at an altitude of 100km, the mean free path in atmosphere is on the order of cm. TFA has it right although slightly distorted (the summary is totally off). The generation of the positron / electron pair results in an annihilation event quite rapidly as the positron travels away from its generation point. What is being observed in orbit is the 511.4 keV photon (gamma ray) that is generated as a consequence of the annihilation. Hence why a gamma ray observatory was able to detect the events.

    9. Re:So, here's a question... by blueg3 · · Score: 1

      No, it generates electron-positron pairs. If the positron escapes into space, the Earth is less massive by the mass of one positron.

      Despite being called "antimatter", antiparticles have positive energies and positive masses, just like regular particles.

    10. Re:So, here's a question... by blueg3 · · Score: 1

      Also lepton number conservation.

    11. Re:So, here's a question... by Anonymous Coward · · Score: 1

      On average it will make no difference.

      Are you sure about that?

    12. Re:So, here's a question... by sorak · · Score: 1

      I know I won't understand the answer to this, but, if antimatter is being sent into space, (even if it is only a minute amount), and it is either formed, or extracted from what was previously here on earth, would that affect the earth's mass? (Again, I would understand if the answer was "not by a measurable amount")

    13. Re:So, here's a question... by AlecC · · Score: 1

      Yes, by a truly minute amount. On the other hand, the anti-matter came from energy, and the energy came from sunlight, and the sunlight was matter/energy arriving from the sun. So it is not contributing to a net weight loss from the earth.

      And the amount is probably dwarfed by the steady trickle of atmosphere being lost into space.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    14. Re:So, here's a question... by Anonymous Coward · · Score: 0

      Well, comment just above this explains that the antimatter isn't really leaving into space, but hypothetically....

      The mass of the antimatter (and the matter that is created symmetrically with it) is converted from the energy that goes into the reaction that produced it (electromagnetic energy in this case). So if the antimatter (or, indeed, the matter) leaves the earth system (i.e., escapes the earth's gravity well), then the earth has indeed lost mass. Albeit mass that was originally in the form of energy. The kicker is that the original energy was always mass, in terms of its mechanical properties (for example, in contributing to the gravitational field of the earth), because of mass-energy equivalence (E=mc^2).

    15. Re:So, here's a question... by maxwell+demon · · Score: 1

      No, the positron doesn't leave the atmosphere. It annihilates with an electron, and the gamma radiation created that way leaves the atmosphere.
      Of course the earth still gets lighter, because the gamma rays transport the energy of the positron and the electron away (unless one of the two gamma photons hits the ground or gets absorbed in the atmosphere, of course; although ultimately that energy will radiate away as heat, too).

      --
      The Tao of math: The numbers you can count are not the real numbers.
    16. Re:So, here's a question... by TheLink · · Score: 1
      --
    17. Re:So, here's a question... by AlecC · · Score: 1

      Very unlikely. This reports show energies in the MeV range, required to create electron/positron pairs. To create micro-black-holes requires energies in the TeV range, a million times higher. If those energies were around, as well as huge numbers of MeV positron gammas, you would also be seeing large quantities of GeV anti-proton gammas. And presumably the exploding micro-black-hole would have a fairly dramatic signal as well.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    18. Re:So, here's a question... by Anonymous Coward · · Score: 0

      i've got a pair, but i'm not gonna let you zap'em.

    19. Re:So, here's a question... by nedlohs · · Score: 1

      Yes, I'm sure about it.

      The positrons are coming from gamma rays via pair production. I'll let you work out why it is called pair production.

    20. Re:So, here's a question... by hacksoncode · · Score: 1
      Umm, guys... *even* if this mechanism didn't have all the problems described, there's still *energy* conservation. The energy to create those particle pairs *still* would have had to come from a terrestrial source (or extracted from a non-terrestrial source that would have otherwise increased the mass of the Earth absent this behavior).

      Antimatter doesn't have negative mass. *If* the positrons *were* able to escape, that would imply that the world would become *less* massive, not more. Because some of its mass escaped into space. This is no different than if some regular matter were fired out into space.

      Analogously, Hawking radiation makes black holes *less* massive, not more.

    21. Re:So, here's a question... by Anonymous Coward · · Score: 0

      Mass isn't conserved, but energy is --- since mass is essentially just condensed energy, it doesn't break any conservation laws. (And the Earth loses more mass (probably even each second) by not being able to hold it's uppermost layers of gasses. Even that can be ignored, because it's a ridiculously low percentage of mass.)

    22. Re:So, here's a question... by Anonymous Coward · · Score: 0

      The positrons are not escaping into space, but they are traveling along the magnetic fields lines to an altitude of the satellite before continuing back towards Earth and reflecting back from the conjugate point. Because they are traveling along the field lines, they stay closely packed together and thus produce a large signal in the detector. Because the particles are reflected at the conjugate point, we are able to see the event twice (i.e. two pulses).

      The positrons are annihilating in the detectors on the Fermi observatory to produce the 511 keV lines. There are probably some annihilations in the atmosphere too to produce 511 keV gammas, but these spray in all directions, so most would miss the observatory and we would not see a strong line signal.

  6. Beams? by rossdee · · Score: 1

    You mean like 5 metres by 150mm by 100mm

    I thought antimatter would only be created one or 2 antiprotons and positrons at a time.

    1. Re:Beams? by somersault · · Score: 3, Funny

      Well, what might only create one or two antiprotons in the US can actually create a whole beam of them in Europe, because of unit conversion.

      --
      which is totally what she said
  7. Not surprising by 2.7182 · · Score: 1

    Anti-matter is probably created all the time in the room you are sitting in. Just hard to detect.

    1. Re:Not surprising by Anonymous Coward · · Score: 2, Funny

      Oh, good. I was worried I was the only one that smelled that...

    2. Re:Not surprising by flargleblarg · · Score: 1

      The dog did it.

    3. Re:Not surprising by Lumpy · · Score: 1

      Thanks man... Coke and onion-rings all over the laptop....

      --
      Do not look at laser with remaining good eye.
  8. Not just antimatter by gmuslera · · Score: 2

    With 1.21 gigawatts you can even go back to the future

    1. Re:Not just antimatter by Anonymous Coward · · Score: 0

      They're already time travelling, RTFA. They observed the phenomenon on Dec. 14th, 2009 @ 11:53, and then all of a sudden the results are showing up on Jan. 10, 2011? Somebody call Jean Claude Van Damme, because these guys aren't supposed to be here yet. :)

  9. Ride the lightning? by blankoboy · · Score: 1

    I am wondering if there might be some way we can use lightning to launch spacecraft or other vehicles/matter into orbit?

    1. Re:Ride the lightning? by Anonymous Coward · · Score: 0

      A railgun my good man, that's what you're curious about. I think there was something on /. recently about the US Navy, (Air Force? whoever uses the aircraft carriers) switching to, or testing a similar system to launching & stopping planes.

      Also, if you're a fan of video games, the "Metal Gear Solid" series revolves around gigantic Transfomer-ish robots with built-in railguns.

    2. Re:Ride the lightning? by Anonymous Coward · · Score: 0

      G-forces for orbital launch would either be ridiculous or so would the railgun size. Assume it was 1000 meters long. Escape velocity is about 11,200 meters/sec. So, 1142.8gs. Make it 10 km long and the acceleration would be 114.2gs. To get it down to something survivable (say 10gs) it would have to be 114.8km long and would be one helluva ride. I'd hate to see the power bill or try to find a spot to build it.

      A lunar orbit launcher would need to be only 24.5km long for 10g acceleration.

      btw, 20,000 meters per second has been achieved. That's more than enough to not need rockets to get to orbit or the moon. Rockets would still be necessary for landing without an atmosphere or a lot of airbags.

    3. Re:Ride the lightning? by garyebickford · · Score: 1

      I recall some discussion about 20-30 years ago (?) about building a launcher that went up Pike's Peak in Colorado. I still think something like that would be a good idea, somewhere - maybe somewhere on the slopes of the Andes, close to the equator, that would not require so much correction to get to an equatorial orbit.

      In fact, that's probably an interesting idea for Ecuador to pursue. They have a good coastal plain with a reasonable infrastructure, and mountains. If a compatibly-shaped mountain is available, then this could become a low cost way of launching small satellites at least. It could also have the effect of boosting Ecuador's ability to compete in a tech world, as the infrastructure required would involve thousands of engineers and scientists, first in design and construction, then in operation.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    4. Re:Ride the lightning? by M.+Baranczak · · Score: 1

      Or you could have a hybrid system: the craft would still use rockets, but it would get an initial boost from a railgun, so it wouldn't need to carry as much fuel.

    5. Re:Ride the lightning? by interkin3tic · · Score: 1

      I am wondering if there might be some way we can use lightning to launch spacecraft or other vehicles/matter into orbit?

      I think it would probably be inefficient to delay a launch until there happened to be a thunderstorm over the lightning rods/space shuttle. Plus, while I'm not a rocket scientist, nor do I work at NASA, it seems to me like there might be issues with launching in a thunderstorm.

    6. Re:Ride the lightning? by CrimsonAvenger · · Score: 1

      I recall some discussion about 20-30 years ago (?) about building a launcher that went up Pike's Peak in Colorado.

      That sounds like vintage Heinlein. "Man Who Sold the Moon" mentioned a Pike's Peak catapult (proposed, not built in the story)....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
  10. Something the Mythbusters can test! by asicsolutions · · Score: 2

    Jamie want big boom!

    1. Re:Something the Mythbusters can test! by Lumpy · · Score: 1

      Coming up on Mytrhbusters; Does antimatter and matter really explode when it comes into contact with each other?

      --
      Do not look at laser with remaining good eye.
  11. Great! by SwedishPenguin · · Score: 1

    Now when we're invaded by aliens, we'll just induce a couple of thunderstorms directly beneath their ships as they approach!

  12. Fix the energy shortage in one bang. by leuk_he · · Score: 2

    An lightning flash has an enery of about 500 Megajoule, which wil drive your electric car for 2000 km. No other fuel required, just put an iron rod on top and have a reload time of a few seconds...

    1. Re:Fix the energy shortage in one bang. by Anonymous Coward · · Score: 0

      Just don't go past 88 MPH, and you'll be fine.

    2. Re:Fix the energy shortage in one bang. by tibit · · Score: 2

      The only technologically feasible way to capture lightning energy right now is to have an effing big capacitor. Building-size-effing-big. There's nothing smaller that can be charged to megavolts within a millisecond or so and survive it.

      --
      A successful API design takes a mixture of software design and pedagogy.
    3. Re:Fix the energy shortage in one bang. by Anonymous Coward · · Score: 0

      This is Slashdot. We are programmers. We understand nothing of basic physical reality and engineering, and we don't care. We want to colonize the universe because computers got really fast in the last twenty years. Go away with your talk of reality and limits!

    4. Re:Fix the energy shortage in one bang. by Anonymous Coward · · Score: 0

      Just don't mix up the polarity...

    5. Re:Fix the energy shortage in one bang. by Kompressor · · Score: 1

      And for God's sake, DON'T cross the beams!

      --
      kmem russian roulette: Aquillar> dd if=/dev/urandom of=/dev/kmem bs=1 count=1 seek=$RANDOM
    6. Re:Fix the energy shortage in one bang. by leuk_he · · Score: 1

      As shown in the article an antimatter containment box will do the same job as a capacitor, and wil be a lot lighter.

      Implemetingation is just a matter of investing money in it. Too bad that the current oil industry is blocking all advancement in lighting capture technology.

    7. Re:Fix the energy shortage in one bang. by tibit · · Score: 1

      Humor us and do some math as to how much energy would be captured if we could harness all the lightning strikes in the U.S. Then contrast that with some estimates on investment required to do so.

      You seem to think that reality can be bent your way by throwing money at it. Sorry, but Nature doesn't give shit about money or good intentions.

      --
      A successful API design takes a mixture of software design and pedagogy.
    8. Re:Fix the energy shortage in one bang. by tibit · · Score: 1

      Oh, I forgot: just how much of lightning's energy do you think is spent on antimatter production?

      --
      A successful API design takes a mixture of software design and pedagogy.
    9. Re:Fix the energy shortage in one bang. by leuk_he · · Score: 1

      10 strikes per km^2 per year according to the article on lightning strikes. USA = 0,9 * 10^12 km^2, 5*10^8 joule , totals an energy of 4,5 * 10^ 21 joule per year which has a value of 2,5 * 10 ^ 14 dollar (Much more than the US military budget)

      Humour us with an value that is made on investment on harassing such power and you will see a discrepancy.

      PS, on atomic fusion a lot of money is spend because the investments may pay off huge in 40-50 years.

      PS, yes humor.. you see, it is easy to prove anything with numbers.

  13. Obligatory antimatter quote by orzetto · · Score: 1

    "Does it mean it doesn't matter?"

    --
    Victims of 9/11: <3000. Traffic in the US: >30,000/y
    1. Re:Obligatory antimatter quote by famebait · · Score: 1

      "Does it mean it doesn't matter?"

      It's stuff that antimatters.

      --
      sudo ergo sum
  14. Flux Capacitor by Anonymous Coward · · Score: 0

    Now we really know what powers the Flux Capacitor! It had nothing to do with the gigawatts, that was just a cover. Doc Brown really needed the antimatter from the lightning to flow through the flux capacitor to create a micro-wormhole and send them forward in.

    Must have been the same with the Mr. Fusion conversion.

    Still haven't worked out the 88 MPH bit, and getting parts for my Delorean is getting harder and harder... but hope there is...

    1. Re:Flux Capacitor by Captain+Hook · · Score: 1
      88 MPH = necessary momentum to breach the replusive event horizon

      How do I know the event horizon is replusive?
      • Doc Brown goes to great lenghts to avoid changing the time line
      • Since anything from the future can change the time line, everything that comes through must be accounted for and returned before being noticed by anyone.
      • If the event horizon was easy to pass through, anything near the car at the event horizon could pass through, 1985 rubbish floating around, germs, people or animals etc
      • Since, for example, no 1985 coke can was ever found in 1955 we know nothing else passed through the horizon on at least 12 time travel trips shown in the 3 films (although not all the trips were future -> past)

      Therefore anything which wasn't either in the car or physically attached to the outside car went couldn't go through and so there must be some minimum force needed to push through the horizon.

      --
      These comments are my personal opinions and do not necessarily reflect the opinions of the other voices in my head.
    2. Re:Flux Capacitor by Lumpy · · Score: 1

      And as evident by the effect of a lot of wind blowing away from the event horizon as seen in the films when they do travel.

      A non repuslive event horizon has the possibility of causing huge problems if the atmospheric pressure at the starting point was higher than the end point or vicea versa. 1-2 psi in planet size is a crapload of pressure.

      --
      Do not look at laser with remaining good eye.
    3. Re:Flux Capacitor by mujadaddy · · Score: 1

      *slow clap*

      --
      Populus vult decipi, ergo decipiatur...
      "Force shits upon Reason's back." - Poor Richard's Almanac
    4. Re:Flux Capacitor by Anonymous Coward · · Score: 0

      i think you are in the wrong thread.

  15. Sprites / elves? by popoutman · · Score: 3, Informative

    This is most likely related to the phenomena known as Sprites, Jets or Elves, that have been captured coming from the tops of thunderclouds. Better explanations here http://www.sky-fire.tv/index.cgi/spritesbluejetselves.html

    --
    - This sig deliberately left blank. Nothing to see, move along.
  16. Valid assumption by Anonymous Coward · · Score: 0

    I think that he simply assumed that the creation of positrons implied the creation of electrons. Given our current understanding of anti-matter, I think it is a valid assumption to make.

  17. What gave them the idea? by KDN · · Score: 3, Interesting

    What gave them the idea to look for these antimatter bursts? Did some scientist theorize it was possible and ask them to look? Or did the spacecraft start receiving bursts that they eventually tracked down to thunderstorms on earth?

    1. Re:What gave them the idea? by GammaRay+Rob · · Score: 4, Informative

      Terrestrial Gamma Flashes have been detected by orbiting instruments for some time; at least since 1991,iirc. What's new here is the definite signature of positron annihilation; this can only be done with a sufficiently large detector looking at the right energy. The Burst Monitor on Fermi was designed to catch the medium energies of gamma-ray bursts (as well as low- and high energies), so this was a nice add-on to the main science.

      --
      This line no sig
    2. Re:What gave them the idea? by KDN · · Score: 1

      Yes, gamma ray bursts were originally used by the military to detect nuclear weapons testing. It was then they found out that gamma ray bursts came from space as well. I was hoping to see an ironic loop in that gamma ray detectors set up to detect nuclear explosions on earth found gamma ray bursts in space. And that further study of the space phenomena led to discovery of phenomena here on earth.

    3. Re:What gave them the idea? by maxwell+demon · · Score: 1

      Yeah, first the proved that aliens have nuclear bombs, and then they found that flashes are nuclear explosions. :-)

      --
      The Tao of math: The numbers you can count are not the real numbers.
  18. Antimatter Lasers? by Anonymous Coward · · Score: 0

    "Its a laser of pure antimatter."

  19. Re:Death ray? Not hard. by vm146j2 · · Score: 3, Funny

    Keeping antimatter safe is easy; you can just stuff it in a shoe box, as long as the shoe box is made of antimatter.

    --
    "Lost time is not found again."
  20. Old News, I saw video of these some 10 years ago. by Anonymous Coward · · Score: 0

    Shot from the ISS. A storm look from above...!

  21. Re:What gave them the idea? -BATSE by Anonymous Coward · · Score: 1

    Rob-

    Thanks for the BATSE plug.
    For the past ~14 years (~1993 to 2007), I couldn't get anyone else, even on our own team, interested in TGFs, theory or obervations. It took the RHESSI observations, and the efforts of the fine scientists, David Smith and Joe Dwyer, along with the RHESSI observations, to invigorate the field. (Bob Malozzi and Berl Peterson were the only two persons who worked with me on TGFs in ~1999. Now its a big deal.

    Jerry

  22. we can have warp drive soon by hesaigo999ca · · Score: 1

    Are you telling me that we are that much closer to getting our warp drives???

    1. Re:we can have warp drive soon by Lumpy · · Score: 1

      Nope still screwed.... we still have not found a source for Dilithium Crystals.

      --
      Do not look at laser with remaining good eye.
    2. Re:we can have warp drive soon by Justin1313 · · Score: 1

      Ya, I want my lighting powered warp drive asap.

  23. Delorians all around? by lymond01 · · Score: 1

    Charge up the anti-matter engine and prepare for an infusion of 1.21 Gigawatts! We're going BACK... ...to the future!

  24. Re:Death ray? Not hard. by interkin3tic · · Score: 1

    Which you then house in a larger antimatter shoe box and put it under your antimatter bed in your antimatter house.

  25. Re:Death ray? Not hard. by Anonymous Coward · · Score: 0

    Does not compute! if all you want is death just stuff the antimatter into a shoe box - BOOM! Of course the downside is you go with it

  26. Re:Death ray? Not hard. by Anonymous Coward · · Score: 0

    Is that at all related to Evil Kirk & Evil Spock?

    Give me your agonizer.... your agonizer PLEASE!

  27. Drugs and Scientists.. by Hylandr · · Score: 1

    This is what happens when physicists get stoned during a thunder storm...

    - Dan.

    --
    ~ People that think they are better than anyone else for any reason are the cause of all the strife in the world.
    1. Re:Drugs and Scientists.. by geoffball · · Score: 1

      Dude, we could launch this killer satellite to check out thunderstorms. It'll be awesome. We'll check out the gravitivity and polarity and shit. We could tell people there's antimatter from the lightning and really freak them out. Then, ya know, we could put a little hydroponic greenhouse on it. That would be some cosmic weed, man.

  28. Re:What gave them the idea? -BATSE by ColdWetDog · · Score: 1

    And in English, this means?

    --
    Faster! Faster! Faster would be better!
  29. Re:Death ray? Not hard. by hypergreatthing · · Score: 1

    I heard you can also put antimatter in a magnetic bottle, cuz no one really knows how magnets work.

  30. Dr. Frankenstein by oldmac31310 · · Score: 1

    What? No mention of Dr. Frankenstein's ground breaking experiments? The anti-matter is probably what made the monster kill.

    --
    http://www.acetonestudio.com
    1. Re:Dr. Frankenstein by eriqk · · Score: 2

      The anti-matter is probably what made the monster kill.

      No, as mentioned elsewhere, the antimatter annihilates with electrons causing gamma rays.

      The gamma rays made the monster angry, and the townspeople didn't like the monster when it got angry.

    2. Re:Dr. Frankenstein by oldmac31310 · · Score: 1

      Thank you so much for clearing that up.

      --
      http://www.acetonestudio.com
  31. Hmmmm..... by Anonymous Coward · · Score: 0

    I wonder how much antimatter is created by your average lightning bolt. And if it is a significant amount Would there be a way to collect it. I'm imagining several large lightning rod tower in a region with a lot of thunderstorm activity. The rods direct the lightning into a subsurface tunnel with conductive element surrounded by a gas (to be converted into antimatter) and then a powerful magnetic containment system to collect the antimatter. Even if it could produce a few grains per year it it could be enough to eventually power a small Antimatter initiated Nuclear Fusion Rocket for an interstellar probe.

  32. Re:What gave them the idea? -BATSE by GammaRay+Rob · · Score: 1

    The Burst And Transient Source Experiment (BATSE) on board the Compton Gamma-Ray Observatory made many observations of TGFs from low-Earth orbit between 1991 and 2000. In fact, our second event after turning on the instrument was located to the Earth; very surprising, in view of the fact that we didn't expect *any*! The ironic part is that our main objects of study, gamma-ray bursts, were discovered by a series of satellites (Vela) that were monitoring the Earth (and the far side of the Moon) for gamma-rays indicating violations of the nuclear test ban treaty with the (then) Soviet Union. Seeing nothing from the Earth, the Los Alamos scientists looked for any other signal...

    --
    This line no sig
  33. Re:What gave them the idea? -BATSE by ImprovOmega · · Score: 1

    That he'll probably now be able to get a research grant to study this more closely after 14 years of trying to get people interested in what is, to him (and many of us on Slashdot), a fascinating phenomenon.

  34. Funny use of the word "proven" by Rogerborg · · Score: 1

    Who has peer reviewed this claim? Who has tested it? This is Science by Press Release.

    --
    If you were blocking sigs, you wouldn't have to read this.
  35. No by GPS+Pilot · · Score: 1

    the positrons are not escaping into space... TFA has it right

    No, TFA says "When antimatter striking [the spacecraft named] Fermi collides with a particle of normal matter, both particles immediately are annihilated and transformed into gamma rays... The TGF produced high-speed electrons and positrons, which then rode up Earth’s magnetic field to strike the spacecraft."

    So, either TFA doesn't have it right, or the positrons are traveling all the way up to the altitude of the spacecraft. (I agree with you that that seems unlikely, given the mean free path in the atmosphere.)

    --
    That that is is that that that that is not is not.
    1. Re:No by the_one(2) · · Score: 1

      Most likely both are right. Most get annihilated in the atmosphere but some make it through.

  36. Nope. The energy that created 'em had mass. by Ungrounded+Lightning · · Score: 2

    Does this process potentially make the world more massive, in creating particle pairs - one of which escapes into space?

    Nope. Makes the planet lighter by the amount of mass + (kinetic energy / csquared) that escaped.

    That's because the energy that created them came from the Earth, where it had been for a while (even if it had previously come from sunlight rather than geothermal or combustion sources) and the energy itself - either as energy or as the difference of mass between two forms (before and after) of matter that liberated it - had mass itself.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  37. Nuclear fusion, too? by Ungrounded+Lightning · · Score: 1

    If electrical discharges in a thunderstorm can concentrate energy enough to create gammas energetic enough to create electron-positron pairs (2 x 511 keV), I'd expect that (given the large concentrations of hydrogen in the cloud's water) they can also produce initiation energy for nontrivial amounts of nuclear fusion. (D D or D T at about 15 keV or P B at about 123 keV.) These reactions produce tens of MeV of output energy, some of which could appear as the gammas that produce electron-positron pairs.

    It would be interesting to look for the signatures of that. Especially given that the mechanism of the dense plasma focus is a plasma instability that I'd expect to be sometimes produced in a free-air electrical discharge such as a lightning bolt or sprite.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  38. Re:What gave them the idea? -BATSE by KDN · · Score: 1

    Do these bursts have anything to do with the recently (past 10 years) documented phenomena of lightning that goes from the cloud tops out into space?

  39. Cancer? by Anonymous Coward · · Score: 0

    Pilots, stewardesses, and frequent fliers are already exposed to cosmic rays. Are people who fly through thunderstorms compounding their exposure to gamma rays in a significant way? Are pilots who fly hurricane recon missions at greater risk for cancer than say commercial airline pilots?

  40. Lightning directly causes noise, then? by Swordwright · · Score: 1

    "... the first direct evidence that thunderstorms make antimatter particle beams"

    Does this mean that elementary school teachers may need to revise their assertions that lightning does not make noise?