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Lab-Made Fireball May Be a Black Hole

MoogMan writes "BBC News reports that a lab fireball may be a black hole. From the article: "A fireball created in a US particle accelerator has the characteristics of a black hole, a physicist has said. The Brown researcher thinks the particles are disappearing into the fireball's core and reappearing as thermal radiation, just as matter falls into a black hole and comes out as "Hawking" radiation." More information available from the NewScientist article (subscription required)."

699 comments

  1. Yet another milestone in my Earth Destruction Plan by daniil · · Score: 5, Funny
    Thanks to the devotion of my minions, I'm yeat again a step closer to fulfilling my Earth destruction plan (why am I doing this? Just for fun, you know...).

    Some time ago, I had one of my minions to compose a list of possible ways of destroying the Earth. Back then, he rated the "microscopic black hole plan" as follows:

    • You will need: a microscopic black hole having enough mass not to evaporate instantly. Creating a microscopic black hole is tricky, since one needs a reasonable amount of neutronium, but may possibly be achievable by jamming large numbers of atomic nuclei together until they stick. This is left as an exercise to the reader.

    • Method: simply place your black hole on the surface of the Earth and wait. Black holes are of such high density that they pass through ordinary matter like a stone through the air. The black hole will plummet through the ground, eating its way to the centre of the Earth and all the way through to the other side: then, it'll oscillate back, over and over like a matter-absorbing pendulum. Eventually it might come to rest at the core due to the resistance of the matter it passes through, but it'll have riddled the planet full of holes long before then. Then you just need to wait, while it sits and consumes matter until the whole Earth is gone.

    • Earth's final resting place: a singularity of almost zero size, which will then proceed to happily orbit the Sun as normal.

    • Feasibility rating: 2/10. Highly, highly unlikely. But not impossible.

    However, now it seems that we're a step closer to accomplishing this, so i might have him revise the list.

    --
    Man is a slave because freedom is difficult, whereas slavery is easy.
  2. hmm by ClioCJS · · Score: 5, Funny

    Does anyone else think assassins should be called in to prevent this experiment from creating a real black hole that swallows up the whole planet in minutes?

    --
    -Clio
    Karma: Bad (mostly from not giving a fuck)
    Blog: http://clintjcl.wordpress.com
    1. Re:hmm by Rosyna · · Score: 5, Funny

      I think professors should be called in to teach you about black holes.

    2. Re:hmm by _Sharp'r_ · · Score: 5, Funny

      If so, if we could figure out how many d6 of damage the fireball is doing, that'd give us a good clue as to the level of the caster and thus about how many hit points they have.

      Useful information, you know.

      --
      The party of stupid and the party of evil get together and do something both stupid and evil, then call it bipartisan.
    3. Re:hmm by Anonymous Coward · · Score: 0

      sounnds like a good idea I'd contribute to a fund to pay the assassin.. heard there expensive

    4. Re:hmm by roman_mir · · Score: 1

      no, more like pest control. It looks like we have an infestation of Nibblers.

      I on the other hand welcome our new Black Hole excreting, flesh hungry overlords.

      Seriously, if there was a doomsday device like that, where I could just make a blackhole and destroy this planet. I would do it in a heart beat, so beware, I am not the only one like that.

    5. Re:hmm by Anonymous Coward · · Score: 0
      Does anyone else think assassins should be called in to prevent this experiment from creating a real black hole that swallows up the whole planet in minutes?

      I hear that Robert Blake knows of a few....

    6. Re:hmm by justkarl · · Score: 1

      If so, if we could figure out how many d6 of damage the fireball is doing, that'd give us a good clue as to the level of the caster and thus about how many hit points they have.

      So, we don't know how many rolls it gets?

    7. Re:hmm by Tongo · · Score: 1

      Just to pick a nit, Nibbler didn't crap black holes, he crapped pellets of dark matter :)

    8. Re:hmm by Josuah · · Score: 5, Funny

      And when we know how many hit points the caster has, then we'll know if Gordon Freeman can save us or not. As he's the only one qualified to shoot up a research facility.

    9. Re:hmm by AviLazar · · Score: 0

      You know...there is just some technology I do not think we should ever have - the ability to make a singularity is just one of them. Black holes are not forces of nature we should be trying to create - i mean, imagine if these idiots actually suceeded in creating a black hole or something resembling it and it DIDN't disappear in a miniscule amount of time....or imagine that even at that short lived period - it had enough power (black holes are pretty damn powerful) to destroy the planet in the blink of an eye...

      This is not a troll, or flame - but it is a legitimate concern...while I am all up for gaining knowledge and power...I am not chaotic and would like to do it in a fashion that might allow us all to live happily ever after ---well i am Lawful Evil so as long as I live happily ever after and the rest of your worship me we are OK.

      --

      I mod down so you can mod up. Your welcome.
    10. Re:hmm by DrNibbler · · Score: 1
      no, more like pest control. It looks like we have an infestation of Nibblers.
      Pest? Infestation? I'm insulted? And who's been cloneing me again?
      --
      Sean.OutaHere()
    11. Re:hmm by roman_mir · · Score: 1

      I'm insulted? And who's been cloneing me again? - confused philosofer? So many questions, so little time.

    12. Re:hmm by mark-t · · Score: 1
      Wow.... and I thought *I* was a nerd...

      Oh, right. This is slashdot.

    13. Re:hmm by roman_mir · · Score: 2, Informative

      philosopher - when will this stop? You know what would be a good FireFox extension? Automatic spell checker that checks spelling before the page is submitted.

      Ok, just found this: SpellBound

    14. Re:hmm by srstoneb · · Score: 5, Informative

      I know there are a lot of jokes that can be made about the idea of building a black hole in a lab, but I just want to make sure people understand how not-dangerous a tiny black hole would be:

      Black holes do not "suck". Most people -- even most smart people -- have this impression that black holes suck in everything around them with some sort of unstoppable force. This is completely inaccurate.

      Black holes only influence things by their gravity. The force a black hole exerts on another object depends on their masses and the distance between them. Exactly the same as the gravitational force between any other two objects, black hole or no.

      The part that makes black holes weird is that they can be significantly smaller (as measured by their event horizon) than normal objects. So if you've got an object with the mass of the Sun, normally it's quite large, so the distance between you and its center is big, and the gravity can only get so strong. If you compress that mass into a black hole, though, you can get much, much closer to its center. If you're only a few kilometers away from the center of gravity of something with the Sun's mass, *then* the gravity will be really strong.

      When it comes to very small black holes -- especially the type that might be created by a particle accelerator, with masses far less than that of a single atom -- the mass involved is so miniscule that you'd have to get within femtometers or less before the strength of the gravity would even be noticeable.

      Now, *if* black holes were indestructible, eternal objects, then yes, even a small one would eventually pick up enough stray neutrinos to start growing, and could eventually become a threat. But, Hawking radiation takes care of that. In fact, the rate of "evaporation" of a black hole *increases* as the black hole shrinks. So micro-black holes would be very short lived, and, again, therefore not a problem.

      Here's the wikipedia article on Hawking radiation for reference.

    15. Re:hmm by CarlDenny · · Score: 4, Funny

      Probably not much help, Fireball tops out at 10d6, I doubt a tenth level caster can manage "Black Hole".

      "Black Hole" is 9th level, I'd guess, so the maxxed out fireball won't tell us more than we already know (that they're probably past 18th.)

    16. Re:hmm by Greyfox · · Score: 1

      Or the goatse.cx guy. His black hole is probably much more of a threat to humanity...

      --

      I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

    17. Re:hmm by KillerDeathRobot · · Score: 1

      It's a wizard we're talking about. Even at really high level he's probably only got a handful of hitpoints.

      --
      Thinkin' Lincoln - a web comic of presidential proportions
    18. Re:hmm by EtherealStrife · · Score: 1

      Fool, what do you think his level question is referring to!?! hmm!?!? n00b

    19. Re:hmm by LadyLucky · · Score: 1

      Be careful, they max out at 20d6. We've got a nasty caster on our hands if that's the case though.

      --
      dominionrd.blogspot.com - Restaurants on
    20. Re:hmm by Anonymous Coward · · Score: 0

      Why not just build "as you go" spell checking into a standard text dialogue?

    21. Re:hmm by defMan · · Score: 3

      Thanks, i needed that. And judging by the comments i am not the only one.

    22. Re:hmm by carpe_noctem · · Score: 3, Funny

      I have a Ph.d, bitch. It's a Pimpin' Ho's Degree, so let me tell YOU about some black ho's!

      --
      "Quoting famous computer scientists out of context is the root of all evil (or at least most of it) in programming." - K
    23. Re:hmm by B3ryllium · · Score: 1

      ... and what did tornados hit BEFORE there were trailer parks?

    24. Re:hmm by conway · · Score: 1
      Black holes do not "suck".

      Man, they definitely don't suck. Black holes rule!

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

      Black holes don't suck. Well, they don't suck like a big kiss from your favourite aunt. But by gravitational attraction, they exert a (potentially large) pull on anyone/thing stood too close. That'd feel pretty much like sucking, even if no pressure is involved. I'd say they suck.

    26. Re:hmm by JoshRosenbaum · · Score: 3, Insightful

      I think professors should be called in to teach you about black holes.

      Which one? :) Aren't there a few different theories about black holes? Seems to me that something that warps space/time so drastically that it causes standard equations to get messed up is not something to tread on lightly.

      Now, for my disclaimer so I don't get flamed too bad if I'm out of touch with research here. :) I am not a professor, black hole expert, relativity expert, physics expert, or yadda yadda. This was just my opinion based on my poor memory about black hole research I've read. If someone has more information on this, I'd be interested in hearing it.

    27. Re:hmm by yiantsbro · · Score: 1

      ..."Black holes do not 'suck'"...

      I guess that depends on whether or not you are currently being pulled apart by one. Oh, you meant literally...

    28. Re:hmm by twiddlingbits · · Score: 2, Informative

      How extremely short lived? From the Wikipedia article you linked.. So, for instance, a 1 second-lived black hole has a mass of 2.28 × 10E5 kg = 2.05 × 10E22 J = 5 × 10E6 megatons of TNT. The initial power is 6.84 × 10E21 W. In the experiement those holes the create must have lifetimes on the order of fractions of a femtosecond as the mass they are using is on the scale of atomic particles which is a whole lot less tha 10E5 kg. Not to mention the decay energy they give up would be awesome. Hmmm.. Step 1 : Create black holes in Lab Step 2: Take the decay energy, convert to electricity Step 3: PROFIT! :)

    29. Re:hmm by Anonymous Coward · · Score: 0

      What, like this?

    30. Re:hmm by fudgefactor7 · · Score: 1

      At one point or another it would stop being a "fireball" and become a "Sphere of Annihilation."

      Gotta love them old-school relics.

    31. Re:hmm by hkb · · Score: 1

      Great explanation, thanks.

      So what would happen if you theoretically held one of these miniscule black holes in your hand for a week? Would you eventually die?

      --
      /* Moderating all non-anonymous trolls up since 2004 */
    32. Re:hmm by Anonymous Coward · · Score: 1, Funny

      Lies!!! All lies!!!

      Don't listen to him!!

      He's one of those Blackholians!! :)

    33. Re:hmm by halfelven · · Score: 2, Informative

      Black holes actually evaporate through the Hawking radiation: the smaller they are, the faster they evaporate. Only black holes large enough to not go POOF! in a nanosecond can survive by eating matter fast enough to counterbalance the Hawking radiation.
      Apparently, someone did the math and it takes a black hole as massive as a mountain, or something like that, to not disappear. Until we can create black holes that large from the very beginning i'd say we're safe.

    34. Re:hmm by MenTaLguY · · Score: 1

      Such small black holes have lifetimes of far less than a second. If somehow you could get it in your hand before it decayed, you would get heavily irradiated by hawking radiation as the hole decayed.

      So yes, you would eventually die. Admittedly, you'll eventually die anyway; it'd just come a lot sooner that way...

      --

      DNA just wants to be free...
    35. Re:hmm by bradkittenbrink · · Score: 1

      It's not a legitimate concern when you call the scientists involved "idiots". You just fear what you don't understand. General relativity is a very mature field and the scientists performing these experiments know what they're doing. To judge what technology we should be allowed to research, you should probably actually understand the science involved first. Next you should approach the issue with academic respect for your peers, or if you don't qualify as a peer at least some common politeness to your fellow human beings.

    36. Re:hmm by Fear+the+Clam · · Score: 1

      My Red Giant sure thinks so.

    37. Re:hmm by Tablizer · · Score: 1

      I think professors should be called in to teach you about black holes.

      Sure they probably have it right, but it is the 0.0001 percent chance that they are wrong that scares me. It is not like we have this relativity and quantum model thing in stone yet.

    38. Re:hmm by Anonymous Coward · · Score: 0

      No, the assassins should be called in to put a stop to those fucking idiots at Ft. Detrick working on attaching IL4 to cowpox... if that shit ever leaks out, accidentally, then the entire human race dies.

    39. Re:hmm by magarity · · Score: 1

      Even at really high level he's probably only got a handful of hitpoints

      You forget that at really high levels wizards have figured out ways to make their armor class look like national debt figures.

    40. Re:hmm by Anonymous Coward · · Score: 0

      If they're wrong about black holes radiating away due to the Hawking process, they're almost certainly wrong about them forming in the first place, too.

    41. Re:hmm by servognome · · Score: 2, Insightful

      Sure they probably have it right, but it is the 0.0001 percent chance that they are wrong that scares me
      Given history it's probably a .0001% chance they are completely Right with their models of black holes.

      --
      D6 63 0D 70 89 81 BB 8E 7B 7C 5F 5D 54 EA AB 73
    42. Re:hmm by drxray · · Score: 1

      I don't quite agree. Black holes do "suck", by which I mean attract things into themselves rather than having them orbit around them like a Newtonian black hole would. They only do this within a few gravitational radii of the hole - inside the "last stable orbit". A little way inside that, you have an actual event horizon which is the point at which gravity becomes the "unstoppable force" you claim doesn't exist.

      I agree with your other comments, though if you're talking about people near solar-mass holes you should mention the tidal forces...

      --
      Slashdot - Mutual Assured Discussion
    43. Re:hmm by releppes · · Score: 1

      ....or we could grab the science fiction ball and run with it. We can theorize that black holes are NOT created by dieing stars and that they're really created by civilizations that develope the concept of a black hole then proceed to create one in a lab. From that we can truely deduce that intellegent life really does exist in the universe, because we're surrounded by black holes...or did exist...or for that matter, were they really that intellegent?

    44. Re:hmm by LurkerXXX · · Score: 1

      Barney Calhoun is qualified as well. Blue-Shift.

    45. Re:hmm by Anonymous Coward · · Score: 0

      How extremely short lived? From the Wikipedia article you linked.. So, for instance, a 1 second-lived black hole has a mass of 2.28 × 10E5 kg = 2.05 × 10E22 J = 5 × 10E6 megatons of TNT. The initial power is 6.84 × 10E21 W. In the experiement those holes the create must have lifetimes on the order of fractions of a femtosecond as the mass they are using is on the scale of atomic particles which is a whole lot less tha 10E5 kg. Not to mention the decay energy they give up would be awesome. Hmmm.. Step 1 : Create black holes in Lab Step 2: Take the decay energy, convert to electricity Step 3: PROFIT! :)

      Unless someone found a way around entropy, the electrical power neccessary to accelerate the particles fast enough to get the desired effect can never be less then the final amount of electricity produced by this process. How exactly are you going to profit when the total energy needed to create the black hole is as much or less than you get out of the black hole?

      Obiglatory Simpsons quote:
      "In this house we obey the Laws of Thermodynamics!"

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

      Of course, your argument assumes that the physics community completely understands black holes.

    47. Re:hmm by Zenaku · · Score: 1

      Ack! Second Law! You're breaking the Second Law! Yes, I know you're joking. But its amazing how many otherwise intelligent people think plans like that will work.

      --
      If fate makes you a motorcycle, you become a motorcycle.
    48. Re:hmm by TheGreatGraySkwid · · Score: 1

      I see.

      So what you're saying is, basically, we're overappreciating the gravity of this situation...

      --
      The Humblest Mollusk on the Net
    49. Re:hmm by Anonymous Coward · · Score: 1, Insightful

      Several AC's have incorrectly claimed that you can't use a mini-black hole as a power source. There will be a certain power input required to create the black hole in the first place, but if you manage to create a stable one, then you've got an indefinite power source: a device for converting the mass of whatever matter you toss into it into energy. This doesn't violate the 2nd law of thermodynamics, because you're not getting more energy out than you put in -- but since you don't have to generate the energy locked up within the matter's mass to begin with, it's a useful energy source. It's like fusion: you get some energy out of the nuclear binding energy; there's some waste energy, but still a lot of useful work possible because you didn't have to create that binding energy to begin with; the atoms are just sitting there all ready to be used. As long as you have a supply of mass, you can keep getting enormous amounts of energy from it (via E=mc^2) by feeding it to a black hole, since the only energy
      YOU have to put in is the energy needed to move the matter from wherever it is to the location of the black hole.

    50. Re:hmm by Anonymous Coward · · Score: 0

      I should note that while this doesn't violate any laws, and isn't perpetual motion, or whatever, it's still not practical, because you'd have to input too much energy to begin with to create a stable black hole, even if you can get essentially unlimited energy out of it once it's there.

    51. Re:hmm by AviLazar · · Score: 1

      no

      --

      I mod down so you can mod up. Your welcome.
    52. Re:hmm by Omnifarious · · Score: 3, Interesting

      Actually, the interesting thing is that we only have theories about black holes, no direct evidence. Not only that, but black holes push the boundaries of our understanding of physics. AFAIK, we've never directly observed hawking radiation, and so we don't even know that it has to exist. We only theorize that it really should because it fits what we know so far of relativity and quantum mechanics.

      So, if they actually did manage to create a small black hole, and then it evaporate, we have our first direct evidence that hawking radiation is real.

    53. Re:hmm by Anonymous Coward · · Score: 0

      > Black holes do not "suck".

      I thought the theory of gravitation confirmed my long-standing hypothesis that everything sucks.

    54. Re:hmm by plehmuffin · · Score: 3, Informative
      No.

      I believe it was in "A Brief History Of Time" I read that a black hole with the mass of a mountain would emit hawking radiation equivalent to 1000 times humanities combined power output.

      Therefore, you could not artificially create one without having many times humanities power output, as you would have to cram whatever matter you wanted to put into the black hole against the force of all that hawking radiation.

      So I think the earth is safe from these mad scientists. For now.

    55. Re:hmm by IpalindromeI · · Score: 1

      Tell that to Hugbot.

      --

      --
      Promoting critical thinking since 1994.
    56. Re:hmm by Anonymous Coward · · Score: 0

      read Earth, by Brinn...

    57. Re:hmm by PantsWearer · · Score: 1
      Even if you ignore the fact that they won't be around for anywhere near a week (or a second, for that matter), they're incredibly small. Along the lines of smaller than elementary particles.

      They're basically just point gravity sources with incredibly tiny event horizons. In fact, their event horizons are so minute that they really can't interact with anything unless they run right into it (this is basically why they shrink instead of growing--they can't attract, and thus consume, anything).

      So if you were holding this thing in your hand, it'll be drawn toward the nearest big attractor, which would be the earth, without interacting with your hand at all. If it did manage to be stable this long, it would start a nice yo-yo motion with the center of the earth as the mid-point, most likely not interacting with the earth either, though if it did get lucky, it could slowly grow and eventually swallow the whole planet. From what I understand, it takes along the lines of years to decades for the complete consumption to take place, though something like the last 50% of the earth would be consumed in the last few seconds because of the nice exponential progression (might be only geometric).

      A nice scifi novel concerning these lovely little voracious buggers is Earth by David Brin, published sometime in the late 80s or early 90s. It's possibly the last good bit of scifi he wrote that has anything to do with reality.

      --
      Be glad life is unfair, otherwise we'd deserve all this.
    58. Re:hmm by stonecypher · · Score: 1


      Hmmm..
      Step 1 : Create black holes in Lab
      Step 2: Take the decay energy, convert to electricity
      Step 3: PROFIT! :)


      4: default on your electricity bill.

      --
      StoneCypher is Full of BS
    59. Re:hmm by stonecypher · · Score: 1

      From scratch, no. By ramming existing things together, though, sure you could. Don't forget that potential energy is just as good at making black holes as kinetic or mechanical. All we really need to do is whack a couple of suns together, which is well within humanity's current power output (we just don't know how to focus that power on a sun.) With the electromechanical energy North America consumes in a decade focussed into a single vector converted into perfect mechanial energy (yeah yeah, not possible, just for the sake of discussion,) we could impart enough force on a binary star to introduce a significant wobble into one of the orbits; if we did that twice carefully, they should collapse into one another.

      A usable setup might, for example, be to start a serious wobble in Proxima Centauri, then to use its gravity in tandem with the pushing force on Centauri B, in the hopes of whacking it into Centauri A. That only nets 2.25 Sols of mass, whereas you need around 480 Sols to go through a complete gravitational collapse. That said, if you scoot a few quantuum black holes, which we can apparently now create, across the surface then they'll start smorgasbording; you can chow down on their emitted energy while they grow in mass to create a black hole by accretion instead of collapse (which I guess would be the composition of quantuum black holes, but whatever.)

      It shouldn't actually be all that hard, actually. My unfounded guess is that our great grandchildren will be arguing about whether to do something like this in order to solve their energy crisis; by then I suspect they'll know how.

      --
      StoneCypher is Full of BS
    60. Re:hmm by CapnGrunge · · Score: 1

      [Un]obligatory quote from bash.org:

      #99835 +(7650)- [X]

      Hey, you know what sucks?
      vaccuums
      Hey, you know what sucks in a metaphorical sense?
      black holes
      Hey, you know what just isn't cool?
      lava?

      --
      I see 57005 people
    61. Re:hmm by WwWonka · · Score: 0

      "Black Hole" is 9th level, I'd guess, so the maxxed out fireball won't tell us more than we already know (that they're probably past 18th.)

      Looks like somebodys not getting laid tonight....or EVER!

    62. Re:hmm by Jozer99 · · Score: 1

      Only if they are ninja assassins.

    63. Re:hmm by Anonymous Coward · · Score: 0

      And if it didn't evaporate, we'd have quite a problem on our hands, eh?

    64. Re:hmm by syukton · · Score: 1
      All we really need to do is whack a couple of suns together, which is well within humanity's current power output


      Yeah, all we need to do is whack a couple of suns together.

      Yeah, a couple of suns....

      Well, here's one...
      --
      Reinvent the wheel only at either a lower cost, greater effectiveness, or your own personal enrichment and satisfaction.
    65. Re:hmm by Anonymous Coward · · Score: 0

      Idiot.

    66. Re:hmm by Anonymous Coward · · Score: 0

      Actually, the interesting thing is that we only have theories about black holes, no direct evidence

      All evidence so far is circumstancial, but we are about to have the resolving power to see the black hole at the center of our galaxy "real soon now" - with in years.

      we've never directly observed hawking radiation, and so we don't even know that it has to exist.

      Hawking radiation has been theoretically predicted via multiple disparate theories.

      There is the Hawking's original approach.
      There are 2 completely different derivations using gravitational anomalies from QFT.
      There is some kind of Euclidean QFT approach that I am not familiar with.
      There is the unrealistic string theory derivation - the world model is unrealistic.

      Also, if black holes did not radiate, then that would cause various paradoxes in black hole thermodynamics.

    67. Re:hmm by floodo1 · · Score: 0

      thats only inpractical at THIS point in time. in the future it wont be a problem!

      --
      I KUT J00 M4NG!!!
    68. Re:hmm by menace3society · · Score: 1

      In your new-fangled rules system maybe. In my day, the only limit to the damage you could do with a fireball was how many d6s you could roll. Our miniatures had to crawl through dungeons in three feet of snow, sloped downward both ways. That's the way we liked it!

    69. Re:hmm by wahsapa · · Score: 0

      HURRAY FOR THE FUTURE!!!

    70. Re:hmm by Poverty+P'uh · · Score: 2, Interesting

      It's thought that gamma-ray bursts may in fact be black wholes that finally evaporate into nothingness. The rate of Hawking radiation is inverse to the size of the black hole, so when they're about to go, they go out with a bang.

      --
      "Never underestimate the power of stupid people in large groups."
    71. Re:hmm by floodo1 · · Score: 0

      :werd:
      the future looks up

      --
      I KUT J00 M4NG!!!
    72. Re:hmm by nitehawk214 · · Score: 1

      Actually I think it was a cleric. They must have casted Implosion.

      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    73. Re:hmm by Omnifarious · · Score: 1

      Yep, if black holes didn't radiate, there'd be a whole bunch of theories that'd have to be thrown out the window. :-) So, it's quite likely that they do, but it's still possible they don't (except that we may now have directly observed it).

    74. Re:hmm by Omnifarious · · Score: 1

      The other theory I've heard about them is that they are binary neutron star systems that merge to form a black whole and end up converting a significant portion of their mass directly to gamma rays in the process.

      I'm guessing that the spectrum and intensity of energy released, especially over time, would do a lot to refine guesses as to the source of the bursts. Of course, I don't think we have a good way right now of figuring out how far away they are, which makes intensity really hard to measure.

    75. Re:hmm by cybercuzco · · Score: 1

      So basically there is no danger from using black holes as a power source. Indeed, it would be quite a challenge to even do so. From the wikipedia article, the black hole would need to be fed ~10^5 kg of matter every second in order to maintain equilibrium, and would give off 10^21 Watts of power, or about 9 orders of magnitude more power than the entire human population uses now. Even containing that much power would be challenging, and if it got out of control, there wouldnt be any danger of the black hole eating the earth, but the detonation would probably kill most life on earth.

      --

    76. Re:hmm by srstoneb · · Score: 2, Insightful

      I don't quite agree. Black holes do "suck", by which I mean attract things into themselves rather than having them orbit around them like a Newtonian black hole would. They only do this within a few gravitational radii of the hole - inside the "last stable orbit". A little way inside that, you have an actual event horizon which is the point at which gravity becomes the "unstoppable force" you claim doesn't exist.

      GR black holes are different than Newtonian black holes, yes. But... at distances large compared to their event horizons, they are pretty much the same thing. And in neither case is a black hole more dangerous than any other object with the same mass. (Again, at distances large compared to the event horizon.) That's the misconception I wanted to address. The idea that a black hole in the solar system would mean death for everyone. The sun itself could magically compress into a black hole, and aside from it getting really cold here, it would make no difference.

      I didn't claim that the "unstoppable force" doesn't exist; it is the very definition of the event horizon. I said that it doesn't reach out to consume everything around it. The gravity reaches out exactly as far and strong as it used to at all distances down to the previous radius of the object before crushification.

      I agree with your other comments, though if you're talking about people near solar-mass holes you should mention the tidal forces...

      I thought that was a bit beside the point, since the discussion was mainly about tiny ones.

    77. Re:hmm by Tablizer · · Score: 1

      Now, *if* black holes were indestructible, eternal objects, then yes, even a small one would eventually pick up enough stray neutrinos to start growing, and could eventually become a threat. But, Hawking radiation takes care of that.

      Yes, but Hawking radiation is just a theory. Even if they are pretty sure it's true, there is still a small but frightening chance of armegeddon. It's like playing russian rulette with really big nukes.

    78. Re:hmm by Tablizer · · Score: 1

      If they're wrong about black holes radiating away due to the Hawking process, they're almost certainly wrong about them forming in the first place, too.

      Like my grandfather always used to say, two wrongs don't fix a dead planet.

    79. Re:hmm by LaCosaNostradamus · · Score: 1

      Call me a nut, but the thing we know about black holes, is that we don't know. Therefore, making one on the surface of the Earth is about as foolish as risk as selling plutonium in quantity. If something bad happens, it could be catastrophic ... and if it really does turn out to be a "planet eater", it will be Humankind's ultimate and final catastrophe.

      We have all the tech necessary to perform such experiments on Luna. We can spare the Moon (*) if a planet eater is truly generated from an accident. What's lacking is the Human will to get such things done. After all, Oppenheimer and his crew weren't entirely certain the atomic bomb's reaction would stop with the fissile material; there was some speculation that the neutrons could continue to cause nuclear reactions in non-radioactive compounds. They took a foolish risk, and that's the unfortunate trend for Humans on Earth.

      (*) Note that even this statement must be qualified with calculations. It could well be that a black hole that swallows the Moon produces a final burst of radiation that literally cooks the Moon-facing side of the Earth, even from about 200K miles away ... killing about half of Humanity, and destroying much of the biosphere for the surviving other half. Hence, Luna may well be another poor place to conduct black-hole experiments. The L-positions could be a good alternative all around, by toting an asteroid into place and setting up shop there.

      --
      [You have a stable society when some nut guns down a schoolyard and the law doesn't change.]
    80. Re:hmm by stonecypher · · Score: 1

      As the post you replied to pointed out, that's relatively straightforward in binary and trinary star systems such as the Tau Ceti group, given the kind of civilization which could construct a structure to gather the heat radiation from a black hole.

      --
      StoneCypher is Full of BS
    81. Re:hmm by Iainuki · · Score: 1

      As an extension of your comment, I should note that because the mass of large objects like the sun is distributed over their volume, even inside them their gravity isn't as intense as if you were the same distance from a black hole containing all their mass. It is the way that black holes concentrate all their mass in a small space that makes them so exceptional.

    82. Re:hmm by athomascr · · Score: 1

      Let me see if I understand this correctly.
      * We only have theories about black holes, no direct evidence.
      * Black holes push the boundaries of our understanding of physics.
      * If it evaporated, it would provide direct evidence that hawking radition is real.
      * If it did not evaporate, it would gradually accumulate mass, sink to the center of the Earth, and eventually draw the entire planet into a point mass.

      Has anyone seen my towel?

    83. Re:hmm by Omnifarious · · Score: 1

      And you think I'm going to pay attention to some guy who doesn't know where is towel is? *grin*

      Yes, that's the basic gist of it. I think the only place where it's even vaguely OK to create black holes is maybe in lunar orbit. It actually kind of bothers me that these people got up to the energy levels required in the lab. I think it was irresponsible of them, even though it seems that it turned out that hawking radiation was real.

    84. Re:hmm by Anonymous Coward · · Score: 0

      They didn't create black holes or observe Hawking radiation. They produced a quark-gluon plasma whose strong-force physics is mathematically dual to the gravitational physics of a black hole.

    85. Re:hmm by bradkittenbrink · · Score: 1

      Well put. I stand corrected on all three points, then.

    86. Re:hmm by phorm · · Score: 1

      Yes, but isn't a black hole created by an object whose mass/gravity has become so great it consumes itself and then other objects nearby? How can you have a black hole without the gravity... would it really be a black hole?

    87. Re:hmm by Anonymous Coward · · Score: 0

      Gravitational self-collapse is how stellar black holes form. However, if you can compress something at high enough pressures past its Schwarzschild radius, or equivalently collide things at high enough energies, it could be possible to form black holes without gravitational self-collapse.

    88. Re:hmm by katsiris · · Score: 1

      If you were to get to the center of the sun somehow, wouldn't the gravity effectively be zero since you'd have equal mass pulling you in every direction? I.e. all of a sphere's mass is not at the center, it's distributed throughout (with the most mass/pressure at the center because of attraction forces).

    89. Re:hmm by srstoneb · · Score: 1

      Yes.

      It's the concentration of mass that makes black holes special, not the magnitude of their mass. At any distance larger than the Sun's radius, it's gravity feels like the gravity of a point mass at its center. But at distances less than its radius, the "effective" mass of that imaginary point mass is reduced because some of the Sun's mass is now above you. Eventually, when you reach the center, the entire Sun is above you, and you feel no net gravitational force.

      If you collapse the Sun to a black hole, though, you get the point-mass effect the whole way down to the event horizon.

    90. Re:hmm by katsiris · · Score: 1

      OK, got it, thanks for clearing that up, just wondering if I was out to lunch.

  3. Is that shit running? :P by Lord+Graga · · Score: 2

    It would be good to know if they had destroyed it yet.

    1. Re:Is that shit running? :P by KarmaMB84 · · Score: 1

      If you read the article they say it only lasts 10 million, billion, billionths of a second so it just dies on its own.

    2. Re:Is that shit running? :P by Anonymous Coward · · Score: 2, Funny

      Is it just me or someone else thinks that a high bishop will steal this, kill the Pope and plant it inside the Vatican ?

    3. Re:Is that shit running? :P by pcidevel · · Score: 1

      No, it is not "running":

      This fireball, which lasts just 10 million, billion, billionths of a second, can be detected because it absorbs jets of particles produced by the beam collisions.

      --

      I thought someone said there was going to be free beer!

    4. Re:Is that shit running? :P by Anonymous Coward · · Score: 0

      FTA: This fireball, which lasts just 10 million, billion, billionths of a second...

    5. Re:Is that shit running? :P by NanoGator · · Score: 2, Funny

      "Is it just me or someone else thinks that a high bishop will steal this, kill the Pope and plant it inside the Vatican ?"

      That would suck!

      --
      "Derp de derp."
    6. Re:Is that shit running? :P by Anonymous Coward · · Score: 2, Insightful
      It would be good to know if they had destroyed it yet.

      According to the article, it probably has not been destroyed and will be around for about 4 months total:

      This fireball, which lasts just 10 million, billion, billionths of a second, can be detected because it absorbs jets of particles produced by the beam collisions.

      My reasoning is this: regardless of the American and British differences in the definition of "billion", 10 million billion billionths of a second must equal 10 million seconds. And /usr/bin/units says that 10 million seconds is about equal to 3.8 months.

      However, I suspect what they should have said is that it "lasts just 10 millionths of a billionth of a billionth of a second", which would be a number that's 18 orders of magnitude smaller than what they actually said.

    7. Re:Is that shit running? :P by Mantorp · · Score: 1

      Unless there's a sadomasochist albino involved I'm not reading it.

    8. Re:Is that shit running? :P by AviLazar · · Score: 1

      Don't you worry, I am just about to finish up my degree on symbology and made arrangements to take the scramjet to the vatican

      --

      I mod down so you can mod up. Your welcome.
    9. Re:Is that shit running? :P by XMyth · · Score: 1

      Can I have my 2 minutes back? Thanks.

    10. Re:Is that shit running? :P by igny · · Score: 1

      Are you sure it did not escape?

      --
      In theory there is no difference between theory and practice. In practice there is. - Yogi Berra
  4. From the Article.. by blake213 · · Score: 5, Funny
    "This fireball, which lasts just 10 million, billion, billionths of a second"

    Euh? Does that make it 10 million seconds?

    --
    mund freud.
    1. Re:From the Article.. by Anonymous Coward · · Score: 0

      LOL.... mod parent up...

    2. Re:From the Article.. by jmcmunn · · Score: 1


      You are correct. Although I am sure they meant:

      1 10 million billion billionths of a second

      or

      1/(10 million billion billion) seconds

      Either way, they were not very clear, or correct.

    3. Re:From the Article.. by Kjuib · · Score: 0

      No... It means it last for:
      4 Months
      0 Weeks
      3 Days
      17 Hours
      46 Minutes
      40 Seconds

      Your calcuations are a littel off.

      --
      - Your stupidity got you into this mess, why can't it get you out? -Will Rogers
    4. Re:From the Article.. by stinkyfingers · · Score: 4, Informative

      It's just lazy, confusion notation for 10 x 10^-24 seconds. Who wants to 10 septillionths of a second, anyway?

      http://en.wikipedia.org/wiki/Names_of_large_number s

    5. Re:From the Article.. by jdog1016 · · Score: 1

      No, I think they mean ten million-billion-billionths of a second, a VERY small amount of time. But anyway, it isn't very clear at all.

    6. Re:From the Article.. by Anonymous Coward · · Score: 0

      no it means 1/((1,000,000)(1,000,000,000)(1,000,000,000)) seconds, put in those terms to make it similer for some people, but harder for others that might know other systems for representing large or small numbers like say.... scientiic notation 1x10^(-24)

    7. Re:From the Article.. by Anonymous Coward · · Score: 5, Funny

      10 septillionths of a second is close to my attention sp...OOH, shiny!

    8. Re:From the Article.. by Anonymous Coward · · Score: 0

      And yet, still longer than the typical male orgasm.

    9. Re:From the Article.. by daclink · · Score: 1

      No no... I may be cynical, but it is obviously designed to look like the black hole is gone whilst really it is devouring the science lab and the government is trying to work out how to stop it! DaClink

    10. Re:From the Article.. by Anonymous Coward · · Score: 0
      Who wants to 10 septillionths of a second, anyway?

      Hell, I need all the time I can get.

    11. Re:From the Article.. by HTH+NE1 · · Score: 2, Funny

      Interesting that the New Scientist article, in the portion of it that is free, says it "lasts as mere 10-23 seconds".

      Ten to twenty-three seconds? That's a lot longer!

      Turns out that they made a markup error, wrapping the "-23" with <UP></UP> instesad of <SUP></SUP>.

      When reached for comment on the error, the New Scientist web editor quipped, "Whas sup?"

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    12. Re:From the Article.. by Anonymous Coward · · Score: 0

      I was thinking the same....

    13. Re:From the Article.. by Anonymous Coward · · Score: 0

      They should not express numbers with such words where it is not appropriate; scientific notation would be adequate here.

    14. Re:From the Article.. by Anonymous Coward · · Score: 0

      Ahh, septillion, my favorite number.

      And coincidently, the first number to contain the letter p.

    15. Re:From the Article.. by Drizzt+Do'Urden · · Score: 1

      Is it like a troll? Do you have to feed it for it to stop?

    16. Re:From the Article.. by Anonymous Coward · · Score: 0

      You have cancer :(

    17. Re:From the Article.. by twiddlingbits · · Score: 1

      OK, so how do you detect a fireball that occurs this fast? Caninstruments even measure to that level of detail? Or is all this theoretical both in creation and time? I don't want to subscribe to RTFA.

    18. Re:From the Article.. by Anonymous Coward · · Score: 0

      The fireball occurs very quickly, but the instruments (which are fast, but not that fast) detect the leftover remnants, not the "fireball" itself.

    19. Re:From the Article.. by Anonymous Coward · · Score: 0

      must be able to type really fast to type as much as you did before seeing a shiny.

    20. Re:From the Article.. by huge+colin · · Score: 1

      Let's go with '10 yoctoseconds', since that's the correct term.

    21. Re:From the Article.. by dave_f1m · · Score: 1

      It dissapears 13 seconds before it's created? Wow! I knew they did some funky stuff with time, but that's just freaky!

    22. Re:From the Article.. by Anonymous Coward · · Score: 0

      It's just lazy, confusion notation for 10 x 10^-24 seconds. 10 x 10^-24? It's just lazy, confusion notation for 10^-23 s.

  5. i call it... by Anonymous Coward · · Score: 0

    i call it a hawking fireball

  6. I for one.... by 2.7182 · · Score: 5, Funny

    welcome our new Kwisatz Haderach Blackhole overlord!

    1. Re:I for one.... by Anonymous Coward · · Score: 0

      hiya e.

    2. Re:I for one.... by thegrassyknowl · · Score: 1

      No fair, he compressed my lunch to a singularity.

      --
      I drink to make other people interesting!
    3. Re:I for one.... by LaCosaNostradamus · · Score: 1

      Kull wahad! That is the place of terror where others cannot look.

      --
      [You have a stable society when some nut guns down a schoolyard and the law doesn't change.]
  7. Hmmm.... by gowen · · Score: 4, Insightful
    Except black holes are gravitational beasts, and this doesn't appear to be. It's just an extremely destructive thing. Alternative headline would be :
    Atom smasher smashes atoms
    From the BBC article, it sounds like "could be a black hole" is the simile "behaves a bit like a black hole", that's gotten all out of control.
    --
    Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
    1. Re:Hmmm.... by civilizedINTENSITY · · Score: 4, Informative

      For Horatiu Nastase's paper in pdf format: Title: The RHIC fireball as a dual black hole

    2. Re:Hmmm.... by gowen · · Score: 1
      Thank you for that link. As the author says,
      the fireball observed at RHIC is (the analog of) a dual black hole.
      (My emphasis).
      --
      Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
    3. Re:Hmmm.... by BaudKarma · · Score: 2, Funny

      Well heck, it *could* be an Oreo. Or a vulture. Or an alternator from a '58 Chevy. Or the warm fuzzy feeling you get from doing an anonymous good deed.

      --
      It's the land of the brave, and the home of the free
      Where the less you know, the better off you'll be.
    4. Re:Hmmm.... by LnxAddct · · Score: 5, Interesting

      Actually, at scales this small gravity is not the dominating force (thats from the article). A gust of wind would literally blow the black hole apart. Its actually pretty interesting from a research perspective. You can see how black holes work, throw something in, see how it comes out, etc... The only thing though is that in order to have some real fun you really do need massive blackholes because then you can warp spacetime and have well defined event horizons etc...
      Regards,
      Steve

    5. Re:Hmmm.... by Gilmoure · · Score: 1

      So, if we put a cat in a box and chucked it into a Mac-Mini Black Hole...

      --
      I drank what? -- Socrates
    6. Re:Hmmm.... by krgallagher · · Score: 1
      "Alternative headline would be :

      Atom smasher smashes atoms"

      Gee! I was thinking more along the lines of:

      Particles Suck!

      --

      Insert Generic Sig Here:

    7. Re:Hmmm.... by LWATCDR · · Score: 0

      I wonder if you could use this as an energy source.
      If you could feed matter into it fast enough that it was stable you could tap the hawking radiation as an energy source.
      1. Could you feed it matter fast enough to keep it stable.
      2. Would you get more energy out of the system than you would need to pump in the matter?

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    8. Re:Hmmm.... by Anonymous Coward · · Score: 0

      I haven't run the calculation, but I don't think you could pump in enough mass to keep it stable, not very easily.. it would probably need to be of asteroidal mass or something. You wouldn't get more energy out of the system than is contained in the matter you pump in, but since it doesn't take you energy to create that matter, and not much energy to pump it in, it's a net energy gain as far as we're concerned.

    9. Re:Hmmm.... by Pollardito · · Score: 1

      so you're saying this won't be the centerpiece of a regular feature on the Letterman show?

    10. Re:Hmmm.... by LWATCDR · · Score: 1

      "You wouldn't get more energy out of the system than is contained in the matter you pump in, "

      That is a given. The question is could you get more energy out of the system than the energy required to "pump" the matter in.
      I was thinking of something like a accelerator feeding a constant stream of matter into the the black hole. The energy out would be E=mc2 - the energy to pump the matter in to the mini blackhole.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    11. Re:Hmmm.... by Anonymous Coward · · Score: 0

      A gust of wind would literally blow the black hole apart.

      No! That is not true at all. If the article says that, then the article is completely incorrect. That would violate the area theorem for black hole mechanics among other well known theorems. Suffice to say, this isn't possible without some negative mass, and that doesn't exist.

      Black holes, by their very nature, overcome ALL other forces. By other forces I mean E&M, Weak&Strong Nuclear, and any other similar forces that we may discover.

    12. Re:Hmmm.... by LnxAddct · · Score: 1

      E = MC^2 is a common misconception. You would actually get more energy out of the system then that equation implies. The reason you ask? That equation is wrong (well its not wrong, just not completely right). Einstein's full equation is E^2 = M^2C^2 + P^2C^2. E=MC^2 is only for objects at rest, but as you stated, we would be accelerating matter into it, and the blackhole's gravitational force would be further accelerating it. The P in the equation stands for the momentum-energy 4 vector, so if an object is at rest, it has no momentum and thus the equation is simplified to the form you quoted. You weren't entirely wrong, just not entirely right:) Although I'm sure some physicists that specializes in relativity will come and point out some mistake I made :) One last point about the equation, using the full form implies that negative masses have solutions for both negative and positive energy and vice versa... this become important where as the short form will mess you up quickly.
      Regards,
      Steve

    13. Re:Hmmm.... by LWATCDR · · Score: 1

      good point Since energy can not destroyed it only makes sense that the momentum would also be carried into and radiated out of the black hole.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    14. Re:Hmmm.... by LuckyStarr · · Score: 1

      What kind of energy could one get out of a black hole? Rotational Energy? I doubt gravitational energy because this would imply a matter decrease thus not possible.

      I thing one could only get more energy from the black hole than matter injected, if the rotational energy of the black hole is not zero.

      But the ammount of energy that mc^2 implies is imo more than enough to make this trick economical. Weird.

      --
      Meme of the day: I browse "Disable Sigs: Checked". So should you.
    15. Re:Hmmm.... by Anonymous Coward · · Score: 0

      If you drop matter into a black hole, you can extract all of its mass-energy (eventually) from Hawking radiation, which is a thermal blackbody spectrum (mostly photons).

      You can also extract energy from the rotational energy of a black hole via the Penrose process or its electromagnetic analogue of superradiance.

  8. Hmmmm by Anonymous Coward · · Score: 0

    This is a great start of a doomsday novel!

  9. Goodness, gracious by Joey+Patterson · · Score: 0

    Great holes of fire!

    1. Re:Goodness, gracious by Oliver+Defacszio · · Score: 1

      So, you've eaten at The Lost Gringo All-U-Kan-Eat Mexican Buffet too?

      --

      -
      Inventor of the term 'pardon my French'.
  10. Hawking radiation? by Darkman,+Walkin+Dude · · Score: 0

    Eh I thought they had worked out that hawking radiation was not matter coming out of the hole, but another part of the accretion disc. Did I pick that up wrong?

    1. Re:Hawking radiation? by Anonymous Coward · · Score: 1, Informative

      Eh I thought they had worked out that hawking radiation was not matter coming out of the hole, but another part of the accretion disc. Did I pick that up wrong?

      Yes, you did. Hawking radiation comes from a black hole's ability to turn virtual particles arising from vacuum fluctuations into a pair of real particles, one of which escapes the black hole's reach. Even in the complete absence of an accreation disc, a black hole will emit Hawking radiation.

    2. Re:Hawking radiation? by khallow · · Score: 4, Informative
      No Hawking radiation occurs due to the interaction of the vacuum with the event horizon of the black hole. Particle/anti-particle pairs are apparently created and destroyed, but every once in a while, one of the pair will cross the event horizon into the black hole while the other particle escapes the black hole. Hawking radiation is the total radation of these escaping particles. Under those circumstances a black hole loses mass. Really small ones (on the order of this plasma ball) quickly radiate their mass away.

      The usual blackholes with at least a solar mass will last incomprehensible amounts of time since a particle formed near the event horizon has to somehow escape the blackhole's gravitational grasp and you have to somehow move the entire black hole's enormous mass in this way. Don't hold your breath.

    3. Re:Hawking radiation? by Triumph+The+Insult+C · · Score: 1

      Yea. That's what happens when you go outside, away from your computer and physics books, even if for just a few minutes.

      --
      vodka, straight up, thank you!
    4. Re:Hawking radiation? by Rorschach1 · · Score: 2, Insightful

      Maybe you can explain this to me. If the virtual particles are created in equal proportions of matter and anti-matter (they'd have to be, wouldn't they?), wouldn't you have a matter particle sucked in just as often as an anti-matter particle, meaning no net change in the mass of the black hole?

      Apparently I'm missing something here, but all the explanations I've heard of Hawking ratiation are either just how you described it, or way, way over my head in technical terms.

    5. Re:Hawking radiation? by Anonymous Coward · · Score: 2, Informative

      Yes, particles and antiparticles are both created and absorbed in equal proportions. Hawking radiation works because the particle/antiparticle that gets absorbed has negative energy, while the one that is radiated away has positive energy; the one that falls in acquires negative energy because it falls in. See this explanation by gravitational physicist Steve Carlip.

    6. Re:Hawking radiation? by Rorschach1 · · Score: 1

      Thanks.

      For those too lazy to read the article above, I'll summarize it here:

      It's magic.

    7. Re:Hawking radiation? by RedCard · · Score: 1

      Hawking radiation works because the particle/antiparticle that gets absorbed has negative energy, while the one that is radiated away has positive energy; the one that falls in acquires negative energy because it falls in.

      I thought particles were able to tunnel out of a black hole as well (although "tunnel" may be the incorrect term). It was my understanding that as a black hole gets smaller, this causes the locations of the particles inside become more and more clearly defined, their velocity becomes less clearly defined, and so some particles are able to cross the event horizon.

    8. Re:Hawking radiation? by Anonymous Coward · · Score: 0

      Yes, you can describe Hawking radiation in terms of quantum tunneling. But you can also describe it in terms of virtual vacuum pair production, as in the link I gave above.

    9. Re:Hawking radiation? by RedCard · · Score: 1

      Yes, you can describe Hawking radiation in terms of quantum tunneling. But you can also describe it in terms of virtual vacuum pair production, as in the link I gave above.

      Are these both the same process described in two different ways, or are these processes two different contributors to the phenomenon of Hawking radiation?

    10. Re:Hawking radiation? by Anonymous Coward · · Score: 0

      They're the same process described in two different ways. Another paper.

    11. Re:Hawking radiation? by RedCard · · Score: 1

      They're the same process described in two different ways. Another paper.

      Thanks. I'll get around to reading up on this eventually. (It's been too long since I last did).

  11. By my calculations by suso · · Score: 5, Funny

    we should all know in about 4.2 minutes whether it is really a black hole or not. It was nice knowing all of you. Thanks for all the fish.

    1. Re:By my calculations by NanoGator · · Score: 1

      "we should all know in about 4.2 minutes whether it is really a black hole or not."

      Some of us think it's a matter-rearranger capable of re-organizing matter exactly the way it was 13 seconds ago. 13 seconds? Personally, I don't know why they're doing this when they could be installing Linux into an alarm clock or something.

      --
      "Derp de derp."
    2. Re:By my calculations by gstoddart · · Score: 1
      we should all know in about 4.2 minutes whether it is really a black hole or not. It was nice knowing all of you. Thanks for all the fish.

      Doh, I don't know what time relative to me your 4.2 minutes started, or in which frame of reference.

      Has everyone else already found and due to relativity and black holes it just hasn't gotten to me yet? Doesn't time slow down or something as you get closer to a black hole? Am I trapped in the last few moments of time and don't know it?

      Gah, this science stuff confuses me. Good thing today is green-beer day.
      --
      Lost at C:>. Found at C.
    3. Re:By my calculations by Anonymous Coward · · Score: 0

      In other news, the state of New York is shrinking at an alarming rate. The CIA reports that they have concrete evidence that Carman Sandiego has been hired by Iranian terrorists to steal New York and hold it for ransom for an undisclosed amount of weapons grade plutonium.

    4. Re:By my calculations by Peldor · · Score: 1

      Well at least we can get in another 73 slashdottings before our time's up.

    5. Re:By my calculations by Neurotoxic666 · · Score: 1

      YES it's a blaaaahhhh... *

      --
      You are more than the sum of what you consume. Desire is not an occupation.
    6. Re:By my calculations by space+thee · · Score: 1

      Can I have thet thing in my trashcan? :)

  12. Human a black hole? by fembots · · Score: 2, Funny

    We eat everything we can find, then something else come out from the other end?

    1. Re:Human a black hole? by Anonymous Coward · · Score: 0
      We eat everything we can find, then something else come out from the other end?

      Since clearly, (at least) I'm not eating that, does that mean we can't find that something else or doesn't your definition of everything include *that* something else?

  13. I can see it now by dtfinch · · Score: 4, Funny

    These tiny blackholes will fall into the core of the earth, and slowly grow one quark at a time, but at an accelerating rate. In a 100 million years or so, it'll come back to haunt the descendents of the super dolphins that'll overthrow the advanced alien race that'll conquer the robots that'll destroy us.

    1. Re:I can see it now by Shadow+Wrought · · Score: 4, Funny

      Dude, the mice are going to be way pissed when that happens!

      --
      If brevity is the soul of wit, then how does one explain Twitter?
    2. Re:I can see it now by CarnivoreMan · · Score: 1
      The following is now on my cubicle wall. I thank you dtfinch for your glorious vision.
      Prophecy of the Tiny Blackholes These tiny blackholes will fall into the core of the earth, and slowly grow one quark at a time, but at an accelerating rate. In a 100 million years or so, it'll come back to haunt the descendents of the super dolphins that'll overthrow the advanced alien race that'll conquer the robots that'll destroy us. -Slashdot User dtfinch 09:25 on Thursday the 17 day of March of the year 2005AD
    3. Re:I can see it now by retinaburn · · Score: 1

      So I shouldn't bother getting a /. subscription? ;)

  14. Same as my stomach by dfn5 · · Score: 5, Funny
    the particles are disappearing into the fireball's core and reappearing as thermal radiation

    The same thing happens when I eat at Taco Bell, but no one has claimed my stomach is a black hole.

    --
    -- Thou hast strayed far from the path of the Avatar.
    1. Re:Same as my stomach by bioart · · Score: 1

      Well, technically, the term "Black Hole" would not be refering to your stomach, but somewhere a bit downstream from that...

      --
      -- Huh?
    2. Re:Same as my stomach by Ungrounded+Lightning · · Score: 2, Interesting

      Your "black hole" is a little farther down. B-)

      (Not strictly a joke, by the way. The literal translation of "black hole" was one of the common euphemisms for the body part in question in Russian, about the time the physics phenomenon was first being figured out. That made it difficult for the Russions to work on it. Black hole research remained out of favor in Russian physics departments until Russian physicists came up with a different term for them.)

      --
      Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
    3. Re:Same as my stomach by tricops · · Score: 1

      No? I guess "bottomless pit" isn't directly comparable, but it is pretty similar...

      --
      (\(\
      (^v^)
      (")")
      This is the cute vorpal bunny virus, copy to your sig or runaway, runaway in fear!
    4. Re:Same as my stomach by Anonymous Coward · · Score: 0

      You've got it all wrong. That's the Brown Eye. The mysterious 8th chakra.

    5. Re:Same as my stomach by NanoGator · · Score: 1

      " but no one has claimed my stomach is a black hole."

      Well, no, not your stomach anyway.

      --
      "Derp de derp."
    6. Re:Same as my stomach by MajorBurrito · · Score: 1

      Although in the case of your stomach, I think the correct word is 'emission', rather than 'radiation'.

    7. Re:Same as my stomach by dmaxwell · · Score: 1

      Isaac Asimov coined the term "collapsar". I like it because the name basically tells you what you're dealing with.

    8. Re:Same as my stomach by Punboy · · Score: 1

      Thats because your thermal emissions caused by taco bell are accompanied by gaseous emissions, while hawking radiation emissions are not :-p

      --
      If you like what I've said here, and want to read more, go to http://www.krillrblog.com
  15. uh oh by BananaPeel · · Score: 5, Funny

    This sounds familiar....Pass me the crowbar

    1. Re:uh oh by smeenz · · Score: 1
      All I got is this here gravity gun

      Head crabs !!!!

    2. Re:uh oh by Harodotus · · Score: 1

      I'm afraid I wasn't able to verify if this is a Buckaroo Banzai quote, it sounds like one to me.

      Anybody else know? (Google doesn't have an easy answer).

      --
      Its not users who are broken, it's systems not taking account their likely behaviour and fixing it technically.
    3. Re:uh oh by UWC · · Score: 2, Informative

      I assumed it was a non-quoted Half-Life reference. The game's silent protagonist, Gordon Freeman, is a scientist who uses a crowbar with satisfying regularity.

    4. Re:uh oh by lgw · · Score: 1

      Well, he's more of an engineer or technician, to judge by the attitude of the scientists he meets. However, he certainly used the crowbar *on* scientists with satisfying regularity when I played. :)

      --
      Socialism: a lie told by totalitarians and believed by fools.
    5. Re:uh oh by FACEMILK · · Score: 1

      That reminds me of something I've been trying and failing to remember for a long time. Could you expound?

  16. Get the paper here by Anonymous Coward · · Score: 5, Informative

    The e-print of Nastase's paper.

  17. Re:Yet another milestone in my Earth Destruction P by erroneus · · Score: 3, Funny

    Look!

    I just want sharks with frikken laserbeams attached to their heads!

  18. Man-made Black Hole? by Anonymous Coward · · Score: 2, Funny

    That sucks...

  19. I wonder... by gothzilla · · Score: 2, Funny

    if John Titor predicted this...

    1. Re:I wonder... by Anonymous Coward · · Score: 1, Interesting

      Why yes, he did

      Titor gave technical details about his time machine that involved the use of mini-black holes. He stated that CERN would make an announcement pertaining to this within a year after he discussed it. In the fall of 2001, after John left, CERN issued a press release indicating the possibility of creating mini-black holes was realistic. The work being explored in this area was speculated upon some months prior to that time.

      Looks like he was a bit early, though.

    2. Re:I wonder... by gothzilla · · Score: 1

      Heh, from what it looks like, he said in 2001 CERN will say making black holes is possible. The first black holes will be made in 2007, but he doesn't say when the method for making black holes was discovered.
      http://johntitor.strategicbrains.com/CopyrightProo f.cfm

      I wonder why they haven't made a John Titor movie yet...oh yeah I forgot about Van Damme...

    3. Re:I wonder... by Manchot · · Score: 1

      Wasn't one of his "predictions" that mini-black holes would be created in particle accelerators at around this time?

    4. Re:I wonder... by Anonymous Coward · · Score: 0

      No, that was Nostradamus.

    5. Re:I wonder... by GoRK · · Score: 3, Interesting

      Looks like he was a bit early, though.

      In the fall of 2001, after John left, CERN issued a press release...

      Not sure if the actual statement from him said that they would do it within a year or they would "make an announcement pertaining to this" but if it's indeed the latter, I'd say the "prediction" was satisfied for whatever that is worth. Now it's (possibly) been done, so I guess you could also say that CERN's "prediction" happened also.

      Seems Titor's technique was to pick up on some things that were just coming into the fringe of the public eye but not really making significant news yet and then make a prediction that just basically said "this will be a big deal in a few years". Although this is not terribly hard to do, the fellow did it very well and has hitherto been pretty lucky about his choices.

      A Titor of today would probably choose to make sweeping predictions regarding the economic growth of China and the looming energy crisis it will cause. He might make some bold declaration about nuclear power coming back into vogue

      Some of his statements were a little too bold and forward looking, though. Tthe US goes into civil war this year according to Titor; however, historically the US political system has survived many tragedies larger than an economic slump or bad apples in power. He also had said that medicine takes a big step backwards and medical advancement slows, which is also historically highly unlikely. If there is all this crisis going on, then historically, medical advancement INCREASES during times of long crisis. Perhaps Titor did not do enough study of history before making some of his predictions. Unfortunately for him, the few bold and horribly wrong predictions will probably collapse the credibility of the hoax. Other than that, it might have been a pretty good one.

    6. Re:I wonder... by mark-t · · Score: 1
      IIRC, Mr. Titor also mentioned something about civil war in the USA starting around 2003.

      So take his "predictions" with a grain of salt... a very *LARGE* grain of salt.

    7. Re:I wonder... by gothzilla · · Score: 1

      He said the first indications of a civil war would be apparent around 2005. The actual civil war wouldn't start till later.

    8. Re:I wonder... by SpamJunkie · · Score: 1

      Actually he said the indications would be apparent in 2004 and the actual civil war would start in 2005, which leaves nine months for things to get crazy. Not that it's any more likely to come true, just thought I'd set the record straight so that when 2006 rolls around we can lay John Titor to rest.

    9. Re:I wonder... by WormholeFiend · · Score: 1

      There will still be his legagy of pretty cool photos though :)

    10. Re:I wonder... by gothzilla · · Score: 1

      We can't lay him to rest until a movie is made about him. Fiction of course.

    11. Re:I wonder... by Daniel_Staal · · Score: 1

      Actually, I think it was a pretty good one. Hoax that is.

      It sounds fairly plausible even now, though there are gaping holes. Most of the holes could be explained by pointing out that he wouldn't really have been an expert on history, (or anything else, really), just a bureaucrat who got a temp assignment.

      If you believe that he went back to a slightly alternate timeline, it sounds even better. The two points you bring up are good, but can be argued; there are always slightly special cases.

      It was a good hoax. His predictions won't come to pass, but he even included that possibility. He convinced a lot of people. He did well.

      --
      'Sensible' is a curse word.
    12. Re:I wonder... by Anonymous Coward · · Score: 0

      Oh.

      My.

      God.

    13. Re:I wonder... by Cognitive+Dissident · · Score: 1

      Yes and no. He predicted that they would produce quantum singularities at CERN (in Europe) rather than a US accelerator lab. But he did say "it will puzzle them for a while, and then they'll figure it out." which seems rather close to what has happened -- IF they have got the right answer for this puzzle now.

      That this would happen at a different place than predicted raises some interesting questions, though. Since the 'theory' of time travel given by John Titor states that the 'many worlds' idea is correct and every world line is necessarily unique, this can be interpreted as either confirmation or refutation. Due to this 'fudge factor' of differing time lines I don't think the question of truth or falsity of Titor's story can ever be ultimately resolved unless a hoaxer comes forward with some clear proof of being 'Titor'.

    14. Re:I wonder... by RealBorg · · Score: 1

      I would be very impressed if a lot of governments manage to suppress civil war for much longer. Even in socialist countries like germany the top half of the population possesses almost all the money with half of that total money beeing in the hands of the top 10%.

  20. uh oh. Do you realize there's a real danger... by Anonymous Coward · · Score: 0

    ...that dozens of novelists and scriptwriters will scramble to their desks when they hear about this?

  21. can an expert chime in here? by peculiarmethod · · Score: 2, Interesting

    "When the gold nuclei smash into each other they are broken down into particles called quarks and gluons."

    and it also says that at these speeds and energy levels (sorta redundant there), gravity is not a concern for these tiny blackholes. So this is my question: if its not a critical level of mass causing an event horizon, disallowing anything but x-rays and the fore-mentioned radiation to escape.. what exactly is causing these black holes to form? Does it have somethjing to do with the petential energy actualizing on such a large scale? (a sortof critical speed instead of mass)

    someone help!

    --
    ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
    1. Re:can an expert chime in here? by peculiarmethod · · Score: 1

      wow.. I just woke up.. sorry about all the mistakes.. afore.. something.. and potential. I gave up coffee. Sorry.

      --
      ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
    2. Re:can an expert chime in here? by torpor · · Score: 1

      what i want to know is, if, gravity is not an issue here, then how do we know our earths gravity is not whisking these fireballs away into the very core (actually), and we're mis-interpreting what we're seeing as 'the fireball went out'.

      maybe the fireball went 'down'? very fast. hungrily.

      --
      ; -- the corruption of government starts with its secrets. a truly free people keep no secrets. --
    3. Re:can an expert chime in here? by Anonymous Coward · · Score: 0
      I gave up coffee.
      What the HELL were you thinking?!#%

      Satan commands you to go drink more coffee.
    4. Re:can an expert chime in here? by Anonymous Coward · · Score: 0

      I'm not a string theorist (or a heavy ion physicists for that matter) but having a quick look at the original article, http://arxiv.org/abs/hep-th/0501068, it seems that they are not suggesting that real black holes appear in RHIC. Instead, they are suggesting that the dual theory description of the fireball is a black hole. It's already in the abstract: 'The "Color Glass Condensate" (CGC) state at the core of the fireball is the *pion field soliton*, dual to the interior of the black hole'. In this dual description, the pion exchange is described by gravitational interactions.

      So it's standard QCD going on in there and the only 'real' black hole is in the BBC science writer's mind.

    5. Re:can an expert chime in here? by painandgreed · · Score: 2, Insightful

      what exactly is causing these black holes to form?

      There is a critical mass for a black hole to form due to gravity, but the key thing here is not mass but density. You crush anything down to a small enough space and it will be come a black hole. The event horizon will be determined by it's gravity and in such examples it may be smaller than an atom. n this case, they've smashed two gold ions together with enough energy that bits of the atoms have reached that critical density and formed a blck hole. This black hole absorbed some of the other particles that collided with it (because the gravity would not be great enough to actuall draw in particles, they would pretty much have to be just headed towards it anyway), where they were probably either ripped apart by the event horizon or absorbed. In either case, energy was radiated out from the destruction of the particles or from Hawking Radiation. In just a breif time, the amount of Hawking Radiation that such a thing creates will make the black hole evaporate.

      Interesting question, is that if this is happening can we create such black holes and then pump them full of matter quick enough so that we end up with a net release of energy greater than what it took to preform the experiment? We wouldn't need a sustained black hole, just to continuously create more and dump matter into them and get energy out to make it an energy source.

    6. Re:can an expert chime in here? by Anonymous Coward · · Score: 0

      That was my interpretation of the paper as well.

    7. Re:can an expert chime in here? by MightyMartian · · Score: 1
      I've heard this suggested before. I'm sure you're going to have to generate a significantly larger blackhole, but who knows, maybe we'll find something better than cold fusion, something that will accept beer cans, banana peels, Steve Balmer and produce useful energy.

      Of course, I can only imagine it would also create a whole new type of protestor, demanding that black hole reactors be shut down because they threaten to suck up the whole world.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    8. Re:can an expert chime in here? by Anonymous Coward · · Score: 0

      very fast

      Not much faster than anything else would fall. Even as a "black hole" its still much less massive than the Earth, so it would accelerate maybe a little more than normal earth gravity, but not much more.

    9. Re:can an expert chime in here? by lgw · · Score: 1

      The black hole had less mass than a proton and lasted for less then 10E-24 seconds. I'm sure it was in free-fall for that time.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    10. Re:can an expert chime in here? by torpor · · Score: 1

      what part of 'hungry black hole' means gravity has anything to do with anything?

      i know, i'm just playin' paranoid sci-fi fruitcake, yo, but hey .. c'mon, smarties, play along... what if the core of the earth was being consumed by a black hole, albeit a very small one .. might explain a few mysteries of tecto-geologic-watcha-ma-callit..

      --
      ; -- the corruption of government starts with its secrets. a truly free people keep no secrets. --
  22. Bad Idea!!! by Ssbe · · Score: 0, Redundant

    I can't be the only one to think that creating black holes on or even near earth is a really bad idea.

    1. Re:Bad Idea!!! by halfelven · · Score: 1

      Because of the Hawking radiation, tiny blackholes evaporate really fast - the smaller they are, the faster they evaporate.
      It takes the mass of a whole mountain, or so, to create a black hole that will not vanish but keep growing, sucking up matter from the Earth. At the moment, it seems pretty hard to make such a big black hole. If you don't make it that big from the beginning, it just disappears.

    2. Re:Bad Idea!!! by Anonymous Coward · · Score: 0

      ...or so you claim.

  23. Don't wory about it yet... by thepotoo · · Score: 0, Redundant

    However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole.

    --
    Obligatory Soundbite Catchphrase
    1. Re:Don't wory about it yet... by peculiarmethod · · Score: 3, Interesting

      insightful? he copied that from the article. sheesh.

      now we get modded up for copying one sentence in the text, not just the entire article.

      --
      ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
    2. Re:Don't wory about it yet... by MillionthMonkey · · Score: 1

      IANAP but I'm guessing a "black hole" of this size would have an event horizon with such a tiny radius that the uncertainty principle alone would allow mass to escape unless the momentum uncertainty were infinite.

    3. Re:Don't wory about it yet... by shawn(at)fsu · · Score: 1

      I had a professor for a cosmology class that worked at the Fermi lab and he said that another scientist that used to work their went a bit off the deep end and now protests outside saying that they would eventually make a black hole and it would suck us all in. Professor Prosper made the story much more funny. It helped that he had a British accent.

      --
      500 dollar reward for tip(s) leading to the arrest of the person(s) who stole my sig.
    4. Re:Don't wory about it yet... by Rei · · Score: 2, Insightful

      One of the best pieces of evidence that we're not going to destroy the Earth with our current generation of particle accelerators is that cosmic radiation already reaches higher energies than we can create. For example, the superconducting supercollider would have reached 40TeV; yet, some cosmic radiation sources, such as Cygnus X-3, are as high as 1,000 TeV.

      And, of course, scientists are well aware of the risk. There have regularly been "are we going to destroy the Earth?" discussions - for example, when the first fission and fusion bombs were being considered, there was concern about starting Earth's atmosphere fusing.

      --
      "Here's a fun fact: the moon has turned to blood!" -- Newscaster, "Jesus Christ Supercop"
    5. Re:Don't wory about it yet... by lgw · · Score: 1

      example, when the first fission and fusion bombs were being considered, there was concern about starting Earth's atmosphere fusing.

      But, you know, they did it anyway. :)

      I think the actual concern was that nitrogen can "burn" to form NOx given enough energy, and it was theoretically possible that the reaction would be self-sustaining once some temperature was reached. No way to be sure without performing the experiment, so ... now we know. I'm amused every time I think of that.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    6. Re:Don't wory about it yet... by Anonymous Coward · · Score: 1

      Some cosmic rays have energies as high as 100 million TeV. But that's a little misleading. What's important in questions of creating world-destroying black holes or whatnot is the center-of-mass energy. For a fixed-target collision, as with cosmic rays, the c-o-m energy goes like sqrt(2 m_target E_particle). However, in colliders, the c-o-m energy goes like 2 E_particle. So cosmic rays aren't quite as far outside our achievable energy range as quoting TeV values alone suggests. However, they still are well outside our range, so not to worry. :-)

    7. Re:Don't wory about it yet... by Anonymous Coward · · Score: 1

      Hmm, I plugged in a 10^20 eV cosmic ray and a typical atomic nuclear target mass, and got a center-of-mass energy ~ 1000 TeV. So maybe you were talking about that all along. My bad.

    8. Re:Don't wory about it yet... by Muhammar · · Score: 2, Informative

      Check your chemistry. Since NO and NO2 and N2O5 formation is endothermic, nitrogen in air will not ignite regardless of the temperature - and this fact was well known in 1942-5.

      What was not known was the actual temperature and compression required for starting fusion of (light) nuclei like hydrogen and nitrogen. Possibility of hydrogen fusion was investicated since the start of the project. And since nitrogen fusion was presumed to operate in some stars, the remote possibility of igniting fusion in earth atmosphere by fusion bomb was floated at one time. Bethe did some quick math to explain why this was unlikely and re-confirmed it later with more rigorous paper. But the idea of seting air on fire got out and made some non-technical people in government worried.

      --
      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:Don't wory about it yet... by Anonymous Coward · · Score: 0

      Unless incoming particles had at least 4.21 jigawatts of energy.

    10. Re:Don't wory about it yet... by ekuns · · Score: 1

      I had a professor for a cosmology class that worked at the Fermi lab and he said that another scientist that used to work their went a bit off the deep end and now protests outside saying that they would eventually make a black hole and it would suck us all in.

      I was a grad student at Fermilab on the CDF experiment, and I received a letter from the crackpot you are referring to. He sent the letter to every person on the experiment. He is (or at least was in the 90s) a professor of psychology at U of Hawaii who did a calculation that told him that collisions at Fermilab had a good probability of causing a vacuum transition to a deSitter space. Such a transition, if possible, would indeed destroy the Earth and solar system. Possibly the universe as we know it.

      This fellow was not swayed by the fact that the Earth has always been bombarded with cosmic rays of much higher energy than we have the ability to create. I believe I still have that letter somewhere. Hmm. I should try to find it!

  24. Perhaps this is why we SETI finds no intellegentce by Anonymous Coward · · Score: 0

    Perhaps scientists always eventually make gamma-ray-bursts or black holes in particle accelerators that blow us up before we can get off the planet.

  25. Better explanation: by physicsphairy · · Score: 4, Informative
    From Physics News Update:

    A puzzling signal in RHIC experiments has now been explained by two researchers as evidence for a primordial state of nuclear matteA puzzling signal in RHIC experiments has now been explained by two researchers as evidence for a primordial state of nuclear matter believed to have accompanied a quark-gluon plasma or similarly exotic matter in the early universe. Colliding two beams of gold nuclei at Brookhaven's Relativistic Heavy Ion Collider (RHIC) in New York, physicists have been striving to make the quark-gluon plasma, a primordial soup of matter in which quarks and gluons circulate freely.

    However, the collision fireball has been smaller and shorter-lived than expected, according to two RHIC collaborations (STAR and PHENIX) of pions (the lightest form of quark-antiquark pairs) coming out of the fireball. The collaborations employ the Hanbury-Brown-Twiss method, originally used in astronomy to measure the size of stars. In the subatomic equivalent, spatially separated detectors record pairs of pions emerging from the collision to estimate the size of the fireball.

    Now an experimentalist and a theorist, both from the University of Washington, John G. Cramer (206-543-9194, cramer@phys.washington.edu) and Gerald A. Miller (206-543-2995, miller@phys.washington.edu), have teamed up for the first time to propose a solution to this puzzle. Reporting independently of the RHIC collaborations, they take into account the fact that the low-energy pions produced inside the fireball act more like waves than classical, billiard-ball-like particles; the pions' relatively long wavelengths tend to overlap with other particles in the crowded fireball environment.

    This new quantum-mechanical analysis leads the researchers to conclude that a primordial phenomenon has taken place inside the hot, dense RHIC fireballs. According to Miller and Cramer, the strong force is so powerful that the pions are overcome by the attractive forces exerted by neighboring quarks and anti-quarks. As a result, the pions act as nearly massless particles inside the medium.

    Such a situation is believed to have existed shortly after the big bang, when the universe was extremely hot and dense. As the pions work against the attraction to escape RHIC's primordial fireball, they must convert some of their kinetic energy into mass, restoring their lost weight. But the pions' experience in the hot, dense environment leaves its mark: the strong attractive force (and the absorption of some of the pions in the collision) would make the fireball appear reduced in size to the detectors that record the pions. According to Miller, looking at the fireball using pions is like looking through a distorted lens: the pions see the radius as about 7 fermi (fm), about the radius of an ordinary gold nucleus, while the researchers deduce the true radius of the fireball to be about 11.5 fm (Cramer, Miller, Wu and Yoon, Phys Rev Lett, tent. 18 March 2005).r believed to have accompanied a quark-gluon plasma or similarly exotic matter in the early universe. Colliding two beams of gold nuclei at Brookhaven's Relativistic Heavy Ion Collider (RHIC) in New York, physicists have been striving to make the quark-gluon plasma, a primordial soup of matter in which quarks and gluons circulate freely.

    However, the collision fireball has been smaller and shorter-lived than expected, according to two RHIC collaborations (STAR and PHENIX) of pions (the lightest form of quark-antiquark pairs) coming out of the fireball. The collaborations employ the Hanbury-Brown-Twiss method, originally used in astronomy to measure the size of stars. In the subatomic equivalent, spatially separated detectors record pairs of pions emerging from the collision to estimate the size of the fireball.

    Now an experimentalist and a theorist, both from the University of Washington, John G. Cramer (206-543-9194, cramer@phys.washington.edu) and Gera

    1. Re:Better explanation: by selectspec · · Score: 1

      I liked the dramatic flare of the popular science rendition that said "leading scientist to believe these are in fact tiny black holes, which someday could be used for time travel."

      --

      Someone you trust is one of us.

    2. Re:Better explanation: by T3kno · · Score: 1, Offtopic

      However, the collision fireball has been smaller and shorter-lived than expected, according to two RHIC collaborations (STAR and PHENIX) of pions (the lightest form of quark-antiquark pairs)

      One question, are pions sub-atomic particles or the poor schmucks that have to go into the collider and look at the fireballs first hand?

      --
      (B) + (D) + (B) + (D) = (K) + (&)
    3. Re:Better explanation: by ultramk · · Score: 1

      Such a situation is believed to have existed shortly after the big bang, when the universe was extremely hot and dense.

      Hmmm, kind of like my first girlfriend...

      m-

      --
      You catch enchiladas by picking them up behind the head and holding them underwater until they don't kick anymore -VeGas
    4. Re:Better explanation: by MightyMartian · · Score: 2, Insightful

      It's just science journalists. I tend to go and look at better sources like SciAm. And remember, this all depends upon repeatability. If it's a one-off, then you're going to see a lot of skeptical physicists out there. The fusion debacles are not forgotten yet, and as always, incredible claims require equally incredible evidence. It could be something more mundane (if there is such a thing at the subatomic level).

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    5. Re:Better explanation: by Anonymous Coward · · Score: 0


      Did you stick your pion in her black hole?

    6. Re:Better explanation: by bcrowell · · Score: 1

      Here is the preprint. It's pretty pathetic that the Slashdot blurb only linked to an article that you can't actually access without being a subscriber to New Scientist.

    7. Re:Better explanation: by Lawrence_Bird · · Score: 1

      argh...is this just trying to feed the whole hysteria
      over RHIC we saw a few years back when people were trying
      to shut it down for fear of generating blackholes that would
      swallow Upton?

  26. Thank heavens... by Alpha_Traveller · · Score: 0, Troll

    I'm glad this fireball/black-hole thing wasn't THAT much of a success. I'd hate to have to hear that same giant-sucking-sound again that we heard during the 2004 Election...

    --
    "Love is like pi - natural, irrational, and very important." (Lisa Hoffman)
    1. Re:Thank heavens... by Anonymous Coward · · Score: 0

      The "giant sucking sound" quote is from Ross Perot during the 1992 election. He was referring to jobs leaving America due to NAFTA.

  27. Hawking Radiation by TheViewFromTheGround · · Score: 0, Offtopic

    Last time I went hawking radiation through my email marketing business, that Mr. Mumma fellow decided to sue me.

    --
    Online citizen journalism from the inner city: The View From The Ground
    1. Re:Hawking radiation by gnuman99 · · Score: 1
      Dude, get with the times. Micro black holes evaporate rapidly due to Hawking radiation. That was known in 1976, more than a quarter century ago.

      Known?? What? Nothing is known in science until it is measured. Hawking radiation was never measured because we never had a BH to observe.

      If these "fireballs" are a result of a BH decaying as Hawking radiation, then and only then we can say that we know that Hawking radiation exists.

    2. Re:Hawking radiation by StarsAreAlsoFire · · Score: 1

      Known

      Hypothesized.

      Significant difference with profound ramifications in this case.

  28. DHL? by Dayze!Confused · · Score: 0

    I'm curious if DHL, the delivery company, may be funding this. IIRC they did have talk about using wormholes to delivery packages faster.

    --
    "All tyranny needs to gain a foothold is for people of good conscience to remain silent." [Thomas Jefferson]
  29. No problem - easy fix! by Anonymous Coward · · Score: 2, Funny

    We all know the only way to get rid of a black hole is to detonate a nuclear device less than 20 feet away from it. This will cause the wormhole to jump to another stargate and the world will be saved.

    1. Re:No problem - easy fix! by AJWM · · Score: 1

      Yeah, but that only works when the black hole is on the other side of the stargate and we're just feeling its effects through the wormhole.

      This one is on this side of the stargate.

      --
      -- Alastair
    2. Re:No problem - easy fix! by Anonymous Coward · · Score: 0

      Unless someone jams it by driving golf balls into the wormhole or taking a wizz through it. ("Dial up a snow planet, I want to write my name.")

  30. Oh good God no..... by HungSoLow · · Score: 1

    Is this where the demons and imps come through the black hole, killing everything in sight? Well.. at least it's at Brown...

  31. I already have one of these by Anonymous Coward · · Score: 1, Funny

    This sounds very similar to my arse. It is dark. Particles disappear, later to re-emerge through the hole as thermal radiation, which I too have been calling "Hawking Radiation". The other guys in the lab love sending probes to "Uranus" to check it out first hand.

  32. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  33. it's been written by way2trivial · · Score: 1

    there is a sci-fi book on this,
    sorry, can't recall the title,
    one of the 3.99 wally world specials..

    talks a lot about waldo type robots-- they realize what's going on, (it keeps punching holes thru the planet as it rotates) and stop it by moving an asteroid to precisely pull the black hole thru the top of an arc into the asteroid..

    one element you may not have considered-that was in the story- the oscillations taper down and soon it's just sitting in the core- dead gravitic center, sucking everything in, and growing exponentially.

    --
    every day http://en.wikipedia.org/wiki/Special:Random
    1. Re:it's been written by bman08 · · Score: 2

      The krone experiment? I remember a late 80's spy thriller with a sci-fi twist at the end. It takes them most of the book to realize they're not dealing with a Soviet superweapon, just an out of control black hold punching holes in the planet.

    2. Re:it's been written by ptbarnett · · Score: 1
      As another poster points out, it was The Krone Experiment. It was written by an astronomer, and his son has made it into a movie:

      http://www.thekroneexperiment.com/

      I remember it differently, though. The oscillations didn't taper down, and the book closed at the start of an all out effort to push (not pull) the black hole into an orbit outside the perimeter of the planet's atmosphere. And it didn't involve an asteroid.

      Maybe it was a different book with a similar premise?

    3. Re:it's been written by flosofl · · Score: 1

      I think the one that involved the asteroid was David Brin's "Earth." Been a while since I read it, however, so I could be wrong. I seem to remember there were 2 holes in the earth -- one was evaporating and one was growing. Alpha was a micro originally used for an energy plant that failed and it sank to the center of the earth where they thought it would just evaporate. After some weird localized gravity events all over the world, it was determined it was growing. They started to plot the oscillations of Alpha, and discovered Beta because all the equations weren't working unless they assumed a second black hole that was growing. They were able to create a sort of equilibrium use the mass of the earth, the Beta black hole, and the asteroid in a very specific.

      The Beta hole would occasionally emit a sort of wave of coherent gravity (or something like that). By positioning the asteroid, they could more or less aim the "gaser". It was going to be developed as a defensive weapons against whatever put the Beta hole in the earth. All in all a strange, cool book.

      --
      "This calls for a very special blend of psychology and extreme violence" - Vyvyan "The Young Ones"
    4. Re:it's been written by JackCroww · · Score: 1

      Thrice Upon a Time by James Hogan also deals with this scenario, but has a unique deus ex machina ending that saves the planet.

      --
      "Ayn Rand is a bloody socialist compared to me." - Robert A. Heinlein
    5. Re:it's been written by VernonNemitz · · Score: 2, Informative

      "Artifact" by Gregory Benford

  34. Is it possible by bananahead · · Score: 1

    In all seriousness, is it possible that, in the spirit of science, these guys actually create something that the entire solar system falls into? No, I am not a paranoid shiver-bunny (all rights reserved)but I am curious, as we get 'smarter' about physics and all the other stuff that StevenH would say if he could actually talk, that we just don't know what the fuck we are fucking with and it all gets sucked into the new hole Bob just created? And why not? Where did the other black holes we seem to be able to detect come from? They came from somewhere, because they do exist, which means they CAN be created.

    --
    A most overlooked advantage to owning a computer is if they foul up there's no law against wacking them around a bit.
    1. Re:Is it possible by saltydogdesign · · Score: 2, Interesting

      Well, there were some folks that figured the first atom bomb might vaporize the atmosphere, but the people involved said, "let's blow it up and find out." And we know the rest.

      --
      // This is not a sig.
    2. Re:Is it possible by CynicalGuy · · Score: 0

      There already is something that the entire solar system falls into. It's called the sun. We just happen to be in a stable orbit around it. Good luck finding enough matter elsewhere in the solar system to "suck up" the sun - it doesn't exist.

      Why do people think black holes are like vacuum cleaners? They are just really massive suns. You could orbit around one if you wanted, it doesn't just suck everything up automatically, any more than any other big source of gravity.

    3. Re:Is it possible by WhiplashII · · Score: 1

      Actually, the program was put on hold until this was resolved. When someone thought the entire atmosphere might burn up, they decided not to continue. It wasn't until they confirmed that that wouldn't happen that they proceeded with the tests.

      --
      while (sig==sig) sig=!sig;
    4. Re:Is it possible by RealErmine · · Score: 1

      there were some folks that figured the first atom bomb might vaporize the atmosphere

      I haven't been outside in a few hours, but last I checked much of the atmosphere was already vapor.

      Wait a minute...

      You maniacs! You blew it up! Damn you! Damn you all to hell!

      --
      Dewey, you fool! Your decimal system has played right into my hands!
    5. Re:Is it possible by saltydogdesign · · Score: 1

      How did they confirm it wouldn't happen? Doesn't seem possible without experimentation.

      --
      // This is not a sig.
    6. Re:Is it possible by Anonymous Coward · · Score: 0

      Bethe showed that the original prediction that led to the possibility was mistaken; theory didn't predict that the atmosphere would ignite after all.

    7. Re:Is it possible by MightyMartian · · Score: 1
      Well, I doubt we're going to produce a black hole of any substantial mass any time in the near future. This simply isn't a problem, in my view.

      As to the black holes we observe, my understanding is most are generated by the collapse of super-massive stars. The black holes that evidently are at the center of many (if not most) galaxies are probably relics of the early Universe, and their formation would probably have been different.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    8. Re:Is it possible by halfelven · · Score: 1

      (this is the N-th time I'm posting this, sigh)

      Tiny black holes just evaporate really quick, even if they fall into the Earth. It's called Hawking radiation, and the smaller they are, the stronger the radiation. Basically, they just go POOF! in a nanosecond or so. They are too tiny to suck in matter fast enough to compensate for the Hawking effect.
      The hole must have the mass of a mountain, or so, from the very beginning in order to just keep on growing by sucking up matter from the Earth. Any smaller than that and it evaporates.

      Calm down, we can't make them that big, not yet.

  35. I For One... by ferrellcat · · Score: 2, Funny

    I for one welcome our new singularity overlooooooooooooooooooooooooooooorrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr.....................

  36. Last words... by Anonymous Coward · · Score: 0, Insightful

    From the article:
    "However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole."

    Those were the last words we've heard from New York now..

    We'd just like to offer our hopes and prayers to anyone in the area..

    We have no idea how fast this is spreading, but at the current rate, it should hit..

    what..

    that can't be right.. .....................

  37. Sorry about the copy and paste error by physicsphairy · · Score: 1
    This is the last line of the article: "Colliding two beams of gold nuclei at Brookhaven's Relativistic Heavy Ion Collider (RHIC) in New York, physicists have been striving to make the quark-gluon plasma, a primordial soup of matter in which quarks and gluons circulate freely."

    When you get there, you can stop reading. :p

  38. y'know .. really .. what is the freakin' point? by torpor · · Score: 1

    /

    a black hole. yeah, thats gonna be handy in the coming apocalypse.

    not. //irony

    --
    ; -- the corruption of government starts with its secrets. a truly free people keep no secrets. --
  39. Jack Bauer is the only one by hsmith · · Score: 2, Funny

    who can save us from these "scientists" that are bent on terrorizing the world with black holes

    1. Re:Jack Bauer is the only one by prisoner · · Score: 1


      He'd be able to stop it for no other reason than all of the bodies he'd pile up would clog the thing. I love 24 but the body count does get a shade ridiculous. Even being in the same city as that guy is a death warrant.

    2. Re:Jack Bauer is the only one by Anonymous Coward · · Score: 0

      Don't worry, the US president has already issued an agenda:

      1- Add creationism to school curriculum.

      2- Remove scientific theories from school curriculum.

      In a generation or two, there'll be no more of these terror-scientists.

      Your votes at work.

  40. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    I think that time has come for some of us (obviously not all :) to say:
    Goodbye and thanks for the fish!

  41. Wanna see a black hole? by criscooil · · Score: 1

    Just look at Uranus!

    --

    My life is an open book ... up to a point.

  42. AAAAAAAHHHHHH! by Anonymous Coward · · Score: 0

    Run for your lives it's Black-hole-zilla.

    Actually I remember reading about this project last year, the end of that article said "there is a very slim chance that this could result in the complete destruction of all matter in the universe"

    VERY SLIM! That is way too big a chnace for me!

  43. great... by MattW · · Score: 2, Funny

    I'll sleep soundly tonight knowing the black hole formed in NY is "not thought to pose a threat". Very comforting.

    1. Re:great... by Anonymous Coward · · Score: 0

      I thought that NY already had a black hole called New Jersey...

    2. Re:great... by No.+24601 · · Score: 1
      I'll sleep soundly tonight knowing the black hole formed in NY is "not thought to pose a threat". Very comforting.

      Don't worry. The Bronx was already cleaned up by Guiliani.

  44. exponetial rate by way2trivial · · Score: 1
    how long do you think it would take? I'm guessing less than a decade before the planet would be unliveable.

    it would gain mass at a ?cubed? rate of growth- each doubling in mass would take 1/9th? as long as the previous time-- and that time rapidly approaches infinite, and there isn't that much mass here to consume...

    --
    every day http://en.wikipedia.org/wiki/Special:Random
  45. URGENT by Anonymous Coward · · Score: 0

    The President needs to be informed of this... someone transport it to the oval office so he can inspect this frst hand!

  46. Proof of Time Travel by Linuxthess · · Score: 4, Funny

    Here is the proof that time travel is possible; an article posted on April 1st, 2005 has taken a trip thru a blackhole and found itself on posted on March 17, 2005. If my theory holds true, expect April 5th's dupe on tomorrow's Slashdot queue.

    --

    I sig, therefore I was.
    1. Re:Proof of Time Travel by UWC · · Score: 1

      Professor Farnsworth: "Indeed so. At this rate, by Tuesday it will be Thursday; By Wednesday, it will be August and by Thursday, it will be the end of existence as we know it."

  47. Titor is real! by MouseR · · Score: 1

    Or maybe not"

    But he did say a thing or two about blackhole being lab-created in 2005.

    We've got ourselves a second Nostradamus!

    1. Re:Titor is real! by MouseR · · Score: 1

      Before I get flames to death, he didn't specifically say 2005.

      My bad.

      But Nostradamus was vague too.

    2. Re:Titor is real! by Anonymous Coward · · Score: 0


      I'm not one to critisize other people's faith but... wait, yes I am. Seriously, can't you find something more worthwhile to belive in than that libertarian masturbatory fantasy that Titor ripped off of bad SF novels?

    3. Re:Titor is real! by Anonymous Coward · · Score: 0

      Nostradamus was nothing more than a morbid poet that was waaay too paranoid.

  48. Just make sure the Lexx is nearby... by Erioll · · Score: 1

    As long as the Lexx is out there, we can hitch a ride to get off of this planet. As long as Ki doesn't kill us, or Stan accidentally blow up Orlando, or any other extremely weird thing happen to us...

    Never thought that a show that was essentially about two people (and a dead assassin, and a robot head) flying through the galaxy in a superweapon, trying to get laid, could be so entertaining...

    1. Re:Just make sure the Lexx is nearby... by NATIK · · Score: 1

      What is this? i must see it!! i only know of Red Dwarf which sound close to it.

    2. Re:Just make sure the Lexx is nearby... by farrellj · · Score: 1

      Lexx makes Red Dwarf seem like a *normal* show...Lexx is...strange....a word that seems to understate the idea...

      --
      CAN-CON 2019 - Ottawa's only book oriented Science Fiction Convention! October 18-20, Sheraton Hotel, Ottawa, Canada h
    3. Re:Just make sure the Lexx is nearby... by h4rm0ny · · Score: 1


      What is this? i must see it!!

      It was (is?) a part German part US tv series. I only saw the pilot four episodes and I don't know how the actual series (with a slightly different cast) turned out. It's not comedy like Red Dwarf, but it has a vein of very dark humour running through it. Be warned - one episode has Rutger Haur playing a psychotic transvestite gang leader, the supporting cast included a few dozen preserved (and kidnapped) brains and the highlight for me was when the ship was attacked by a 500' blonde in bondage gear.

      Definitely get hold of the original four episodes. Definitely don't expect it to be anything like Red Dwarf and defintely let me know if you figure out why the shower in the ship's bathroom is a penis.


      I'd get hold

      --

      Aide-toi, le Ciel t'aidera - Jeanne D'Arc.
    4. Re:Just make sure the Lexx is nearby... by lonesome+phreak · · Score: 1

      I've watched a bunch of them. The best episode was a musical where Ki told his "story" of how he became a Great Assasin.

      --
      Maybe we DID take the blue pill. You wouldn't remember anyway.
  49. Yawn by howlin_walleye · · Score: 2, Funny

    Better not get your necktie caught in one of those!

  50. Re: Joe Haldeman by Josuah · · Score: 1

    Forever Peace: "the high-profile Jupiter Project is about to re-create the Big Bang". The Jupiter Project referred to a super collider of immense size.

    Coincidence? I think not!

  51. Re:NINJAS! by Anonymous Coward · · Score: 1, Funny

    Does anyone else think assassins should be called in...

    I definitely vote for Ninjas. They're way cool. And as a side bonus, (1) they can move fast enough to avoid being sucked into the black hole, and (2) they can slow their heartrate to zero if the blackhole starts to pass through their bodies. With those two skills alone, they're clearly best for the job.

  52. Here it comes... by dauthur · · Score: 2, Funny

    Well great. We've got in our hands the most destructive force in the universe, and we're playing with it. I hope we survive long enough so I can buy a "Anti-wrinkle black hole" for my wife some day. Or maybe a "Tonka Wormhole" toy for my kid. I don't even want to know what Barbie and barbie toys they come out with.

    This technology is not a toy. May cause suffocation, asphyxiation, paralysis and may crunch you into a singulatity if you stand to close when in "action" mode.

  53. One flaw by gr8_phk · · Score: 4, Insightful

    The black hole would not behave as a pendulum for long. As it takes in new matter the system must conserve momentum. So if it fell half way to the center of the earth and then gained some mass, it would lose velocity, and hence not have enough speed to make it back to the surface on the next oscillation. The resulting black hole floating around the earths core would be very interesting. Just think of all the earthquakes we'd have as the planet slowly shrank - or not so slowly...

    1. Re:One flaw by gl4ss · · Score: 1

      well, kind of like in don rosas donald duck story "Universal solvent" ? pic .

      --
      world was created 5 seconds before this post as it is.
    2. Re:One flaw by donaggie03 · · Score: 1

      That is exactly how a pendulum behaves. It's just that pendulums lose very very little energy on each pass, so it is hard to see it slowing down.

      --
      Three days from now?? Thats tomorrow!! ~Peter Griffin
    3. Re:One flaw by NightRain · · Score: 1
      That is exactly how a pendulum behaves.

      Pendulums gain mass on each oscillation?!?!?

    4. Re:One flaw by Anonymous Coward · · Score: 0

      Yup. Least this here pendulum with an ice crystal weight suspended in a supercooled water vapour chamber does.

    5. Re:One flaw by halfelven · · Score: 1

      Yes, a black hole "pendulum" swinging back and forth through the planet will indeed gain mass.

    6. Re:One flaw by Tablizer · · Score: 1

      Pendulums gain mass on each oscillation?!?!?

      It's so if you never dust or vacuum.

    7. Re:One flaw by sacbhale · · Score: 1

      Its UNCLE Scrooje not donald duck!

    8. Re:One flaw by sydb · · Score: 1

      Pendula, if you please, you donut.

      --
      Yours Sincerely, Michael.
    9. Re:One flaw by Ctrl-Z · · Score: 1

      I'm sorry, but what exactly made you say that? I consulted a couple of dictionaries, and they don't know anything about "pendula".

      --
      www.timcoleman.com is a total waste of your time. Never go there.
    10. Re:One flaw by stonecypher · · Score: 1

      You don't have to get all the way back up to your previous height to be a pendulum. The object should continue to behave as a pendulum until it has consumed so much of the earth's mass that it breaks free. That's going to be quite some time - probably decades. Read a Niven book.

      --
      StoneCypher is Full of BS
    11. Re:One flaw by sydb · · Score: 1

      Yes, but, made you look!

      --
      Yours Sincerely, Michael.
    12. Re:One flaw by changcho · · Score: 1

      I think you're wrong there - the system can not conserve momentum b/c a Force (i.e., gravitational attraction by the Earth) is acting on it. In spite of the non-conservation of momentum, it seems to me the mini-black hole would still oscillate back and forth until eventually it sits at the Earth's core, slowly eating it up...

    13. Re:One flaw by Anonymous Coward · · Score: 0

      Gravity is a conservative force.

    14. Re:One flaw by changcho · · Score: 1

      Yes, of course.

    15. Re:One flaw by tod_miller · · Score: 1

      doughnut, you insensitive clod!

      --
      #hostfile 0.0.0.0 primidi.com 0.0.0.0 www.primidi.com 0.0.0.0 radio.weblogs.com
  54. It's funny until... by eno2001 · · Score: 3, Funny

    ...cacodaemons and imps start crawling out of your rift in the space time continuum.

    --
    -"...bad old ideas look confusingly fresh when they are packaged as technology" - Jaron Lanier (Digital Maoism on Edge.o
    1. Re:It's funny until... by AviLazar · · Score: 1

      I have a samuraii sword, hand-and-half sword, a dagger, a warhammer and a sig saur sp 2340 all next to my bed (lots of ammo included). A camel waterpack, backpack, and 10 MRE's....The IMPs and their master demons had better fear me.


      P.s. I also have lots of holy water from the Dead Sea in Israel

      --

      I mod down so you can mod up. Your welcome.
    2. Re:It's funny until... by Anonymous Coward · · Score: 0

      hey, I still have 6 boxes of shotgun shells, I am certian I can make it to the elevator....

      no problem.

    3. Re:It's funny until... by Fear+the+Clam · · Score: 1

      Don't worry. There's no way they're no way they'll find your mom's basement.

    4. Re:It's funny until... by Xophmeister · · Score: 1

      Mmmm, cocoadaemons...

      --

      Christopher Harrison

    5. Re:It's funny until... by Anonymous Coward · · Score: 0

      You know I was alway suspicious of those Snap, Crackle and Pop guys...

    6. Re:It's funny until... by Dannon · · Score: 1

      I also have lots of holy water from the Dead Sea in Israel

      What good is it going to do you if it's way over in Israel? Wouldn't it be better to to have it nearby?

      (Insert rimshot)

      --
      Good judgment comes from experience.
      Experience comes from bad judgment.
  55. Only one way to find out... by WaR.KiN · · Score: 1

    Just put your hand in it and see what happens. On the other hand, humans now have a new place to dump their garbage.

  56. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0
  57. There goes the planet, Sucked into a Black Hole by Anonymous Coward · · Score: 1, Funny

    USA, USA, USA, USA...

  58. Problem solved! by Verminator · · Score: 1
    Who needs Yucca Mountain?

    Quick, re-route the trucks!

    --
    "The more corrupt the state, the more it legislates." - Tacitus
  59. Reminds me by anvilmark · · Score: 4, Informative

    of the sub-plot in Thrice Upon A Time

  60. Obligatory Futurama reference by Winterblink · · Score: 4, Funny

    Hawking: I call it a "Hawking Hole."
    Fry: No fair! I saw it first!
    Hawking: Who is The Journal Of Quantum Physics going to believe?

    --
    "I'm a leaf on the wind. Watch how I soar."
    -Hoban Washburn
  61. John Titor by Turn-X+Alphonse · · Score: 1

    Didn't John Titor predict we would discover how to make mini black holes in the near future? Maybe he was right...

    http://en.wikipedia.org/wiki/John_Titor/

    --
    I like muppets.
    1. Re:John Titor by CynicalGuy · · Score: 0

      learn how to link to wikipedia..

      http://en.wikipedia.org/wiki/John_Titor

    2. Re:John Titor by zakharin · · Score: 0

      Didn't the Vulcan science directorate declare them impossible?

    3. Re:John Titor by Anonymous Coward · · Score: 0

      I was going to flame him for spreading this John Titor nonsense further but yours was already an excellent response! :-)

  62. What I'd like to know is... by Anonymous Coward · · Score: 0

    how long before "aliens" show up and tell us to stop playing with "fire" because it is causing a huge disturbance in the "force."

  63. Re:uh oh. Do you realize there's a real danger... by gothzilla · · Score: 4, Funny

    They already have. They're scrambling to pull out stuff they've already written. Predicted sequence of events:

    First we'll hear about the new black hole movie

    Disney will re-release "The Black Hole" on DVD

    Scientists will explain that it wasn't really a black hole after all, but the major media will not pick up the story because the movie and tv series have already been started and Hollywood will lose too much money

    TV mini-series comes out just before the movie

    Movie comes out

    Dept. of Homeland Security informs everyone that to keep safe from a black hole, buy duct tape and plastic and cover your windows.

  64. Implications by Lord_Dweomer · · Score: 3, Funny
    So.....I was wondering if there are any particle physicists around that can explain what the implications of this for us wizards and sorcerors are. Is this cheaper than making a wand of fireballs? Will this enable us to cast fireball before 5th level? Will the damage dice we get to roll?

    --
    Buy Steampunk Clothing Online!
    1. Re:Implications by Alsee · · Score: 1

      Congratulations, you have successfully cast a black hole. Roll 4d-infinity damage against the goblin, then roll 1d-infinity splash damage against yourself. Yes, you get to make a saving throw vs death ray to only take half damage.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  65. Re:Yet another milestone in my Earth Destruction P by Rei · · Score: 3, Insightful

    I once heard a remark at some long forgotten source of unknown credibility that stated the amount you would have to jam together to consume earth before it radiated itself away in Hawking Radiation was about the size of Mount Everest. Take this with a couple kilograms of salt, mind you, as I don't recall the source.

    --
    "Here's a fun fact: the moon has turned to blood!" -- Newscaster, "Jesus Christ Supercop"
  66. Re:Yet another milestone in my Earth Destruction P by tom17 · · Score: 1

    "So Long"

  67. This is a test of the emergency broadcast system by Esion+Modnar · · Score: 1
    if this had been a REAL black hole, you would have heard: "OH FUCK! Turn it off! Turn it off! Dear God what HAVE WE DONE?!?!?!", soon followed by gloom, despair, and agony on you.

    Fortunately, you wouldn't have had much time for the deep dark depression.

    --

    They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
  68. Way off topic by Holi · · Score: 4, Funny

    ---You can't mend a broken heart by pretending it's not broken.

    No that takes beer.

    --
    Sorry, teleporters just kill you and then make a copy. A perfect, soul-less copy.
    1. Re:Way off topic by dauthur · · Score: 1

      And a solid day wasted on Halo and Chex-mix along with that beer. (The broken heart thing was my sig)

    2. Re:Way off topic by Anonymous Coward · · Score: 0

      Sig: would that pic be a 240 Turbo? Just curious

    3. Re:Way off topic by Holi · · Score: 1

      Nope '93 Camry, curiosity's a good thing.

      --
      Sorry, teleporters just kill you and then make a copy. A perfect, soul-less copy.
  69. Ob. Futurama by Anonymous Coward · · Score: 0

    Fry: Hey! Stephen Hawking! Aren't you that physicist who invented gravity?

    Hawking: Sure. Why not?

    Fry: Let me ask you something. Has anyone ever discovered a hole in nothing with monsters in it? Cos if I'm the first, I want them to call it: a "Fry Hole."

  70. Don't panic. by roman_mir · · Score: 4, Funny

    nt.

    1. Re:Don't panic. by roman_mir · · Score: 4, Funny

      that's the only sensible thing anyone's said to me all day.

    2. Re:Don't panic. by Anonymous Coward · · Score: 0

      I'm not I have a towel and my Sub-etha sens-o-matic thumb or whatever.

  71. Different explanation? by Anonymous Coward · · Score: 0

    I'd believe Miller and Cramer's prosaic physics over Nastase's black holes, so I might call theirs "better" ... but are they competing explanations? I'm not sure their proposals are trying to explain the same aspects of the RHIC experiments.

  72. New Scientist? And you believe this tripe? by Anonymous Coward · · Score: 0

    That rag is always publishing the latest wacko theories as fact. Many of their published so-called articles are unreviewed fantasy by the latest professor who wants to get some recognition...

  73. Oh Great by theManInTheYellowHat · · Score: 1

    And I just bought a winning lottery ticket the same day some guy figured out how to blow up the world in 10 easy steps!!!

  74. Re:This is a test of the emergency broadcast syste by Winterblink · · Score: 1

    Actually had it been a real one of any substantial threat, I doubt you would have heard anything at all. :)

    --
    "I'm a leaf on the wind. Watch how I soar."
    -Hoban Washburn
  75. They already thought of that... by speleo · · Score: 1
  76. BBC by bombadillo · · Score: 0, Offtopic

    I know it's offtopic but you have got to love the BBC. Almost always informative, no annoying adds. I have to thank the Brittish Tax payers for funding the BBC! Growing up I always heard that UK TV was crap. However, after living there a few years ago I can say it was quite good. After returning to the US I am amazed at all of the TV shows on air that are basically copies of Brittish TV. Coupling, The Office, Trigger Happy TV, The Sketch show, American Idol, Trading Spaces, Faking it, etc...

    1. Re:BBC by Anonymous Coward · · Score: 0

      Actually, British TV airs lots of American shows and copies American productions into their lineup.

  77. Re:Yet another milestone in my Earth Destruction P by bioart · · Score: 1

    Ok, so you saw the same stargate episode I did...

    --
    -- Huh?
  78. I'm not so bad, I guess. by hanshotfirst · · Score: 1

    I only have to worry about whether I left the coffee pot on.

    --
    Why, oh why, didn't I take the Blue Pill?
  79. Just great... by Anonymous Coward · · Score: 0

    This past weekend I finally get laid and now it looks like the end of the world may be nigh.

    -AC

  80. Sonic boom! by tricops · · Score: 1

    Meh. I have too many game memories. The first thing that this brought to mind was Guile spreading his hands apart, and.... Sonic boom!

    --
    (\(\
    (^v^)
    (")")
    This is the cute vorpal bunny virus, copy to your sig or runaway, runaway in fear!
  81. Re:Yet another milestone in my Earth Destruction P by smileyy · · Score: 4, Informative

    "The Hole Man" by Larry Niven.

    --
    pooptruck
  82. See the RHIC 'atom smasher' in person by UnderScan · · Score: 2, Informative

    The Brookhaven National Lab located on eastern Long Island, NY gives summer Sunday tours of their facilities(2004 schedule). If you have the chance, then GO! Seeing RHIC up close if pretty damn cool. I'm no particle physicist but their tours are quite impressive and are given by the researchers themselves. Oh, and yes they have beowulf linux clusters too.

  83. well, that's that. by Anonymous Coward · · Score: 0

    See you in New York, everybody.

  84. Re:Yet another milestone in my Earth Destruction P by Gilmoure · · Score: 2, Interesting

    Larry Niven wrote it, as a locked planet mystery story. It's in whatever the current collection of his short stories (N-Space?) is at B&N (picked up last year, now packed away).

    --
    I drank what? -- Socrates
  85. Is matter just being converted to energy? by Anonymous Coward · · Score: 0

    Why isn't this just some kind of fusion/fission reaction? Isn't it a matter of comparing the mass of the system with the energy produced? Calling this a black hole seems to be a bit of a stretch.

    1. Re:Is matter just being converted to energy? by Anonymous Coward · · Score: 0

      The researcher is speculating that the spectrum of radiation observed is due to the creation of microscopic black holes during the highly-energetic collision.

  86. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    "The Hole Man" by Larry Niven, recipient of the 1975 Hugo Award for best short story.

  87. Oh please... by radish · · Score: 4, Funny

    Did no-one pay any attention to SpiderMan 2? I mean I know Kirsten's nipples are distracting and all, but come on - it's all there!

    --

    ---- Den ene knappen er powerknapp, den andre er Bender voice knapp "Bite My Shiny Metal Ass"

    1. Re:Oh please... by Anonymous Coward · · Score: 0

      Did no-one pay any attention to SpiderMan 2?

      You must admit -- that film was extremely difficult to sit through...

    2. Re:Oh please... by AvantLegion · · Score: 4, Funny
      >> I mean I know Kirsten's nipples are distracting and all

      *moves Spiderman 2 to top of NetFlix queue*

    3. Re:Oh please... by WormholeFiend · · Score: 1

      I have some tritium here available in my carbonate keychain vial...

  88. NO, it was NOT a "Black Hole' by cbelt3 · · Score: 4, Informative
    In this case an RTFA and then search for media hysteria relevant to this (Scientists cause End of the Universe, film at 11 !) does less good than bad. You can read Dr. Nastase's paper here . While I cannot claim to understand the math, the text provides some clues. The claim presented here is NOT that "A Black Hole Was Formed", and the hysterial headline "Long Island Sucks, and it's gonna kill is all !" is just so much media whoring bullshit. The observations attempted to use existing mathematical models of black hole behaviours and develop an analog for the behaviour of the Quark Gluon Plasma experiment's behavior.

    Want more ? Here is the Home page-Science Lite for the STAR detector

    Please note also that Dr. Nastase was beating these same drums back in 99. I expect that this paper is science politics- at that level you don't want anyone to think you were wrong, so you will spend significant effort at proving your predictions right, despite evidence to the contrary. Oh, and he's not even on the project- he's sucking down other people's results after the fact.

    1. Re:NO, it was NOT a "Black Hole' by Guppy06 · · Score: 1

      "Long Island Sucks, and it's gonna kill is all !"

      So are you trying to say that Long Island doesn't suck, or simply that it won't kill us all?

    2. Re:NO, it was NOT a "Black Hole' by selectspec · · Score: 1

      I get it. So, you are saying that the black holes were in fact larger than the article suggested. And, that these black holes could also be used for time travel. And, that we should all applaud this Dr. Nasty for his invention of this time machine. I guess I'm just a bit confused about the Long Island bit.

      --

      Someone you trust is one of us.

    3. Re:NO, it was NOT a "Black Hole' by cbelt3 · · Score: 2, Insightful
      Brookhaven Naval Laboratory is in Long Island. The Relatavistic Heavy Ion Collider lives there. And no, my comment was that the 'black hole' claimed does NOT exist- this guy said that because something was happening that was 'black hole like' (specific type of energy emission)that it was a black hole.

      It's like claiming that the little light bulb in your headlight is powered by Nuclear Fusion because it emits light in the same general spectra as the Sun. Of course, if you say it with a butt-load of incredible equations, and then give the paper a hugely sensational title, the media whores are gonna run all over the world with it.

      Which is what happened.

      There's one born every minute, and they all work for the media during sweeps week.

    4. Re:NO, it was NOT a "Black Hole' by Anonymous Coward · · Score: 0

      Brookhaven National Lab, not Naval Lab. The military doesn't operate giant particle accelerators, Terminator 3 notwithstanding.

  89. 'Don't remember the title... by SvnLyrBrto · · Score: 1

    But I remember the story. It was a short story by Larry Niven. I remember it being in one of his anthologies, either "Playgrounds of the Mind" or "N-Space". Dunno where else he it was published, but it was definitely in one or the other of those two.

    cya,
    john

    --
    Imagine all the people...
  90. Re:Yet another milestone in my Earth Destruction P by wenit · · Score: 0, Redundant

    It was a short story in N-Space called "The Hole Man" by Larry Niven. Here karma karma, come here karma

  91. Life imitates art? by Saganaga · · Score: 1

    There was a pretty good sci-fi book by David Brin called "Earth", written in 1991 or so, that had an artificial black hole escaping and threatening to destroy the earth.

  92. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 1, Insightful

    I just want that FUCKING joke to disappear!

  93. Re:Yet another milestone in my Earth Destruction P by m50d · · Score: 1

    Reread the second part of that required ingredient. You still need to make it a lot bigger before it's going to work. Still, seems my mass driver may not be the thing to destroy the earth after all.

    --
    I am trolling
  94. So, uh.... by blair1q · · Score: 1


    While we're busy outlawing innocuous stuff like stem-cell research, how about we put a lid on trying to create a black hole before someone realizes the hard way the theory of the stability of black holes is only a hypothesis?

  95. Not black hole, but the dual of one by Brane · · Score: 5, Informative
    I think this article may be based on a misunderstanding. The paper in question is here, with the title The RHIC fireball as a dual black hole (my bold).

    If I understand this correctly, the dual is meant in the sense of the "AdS/CFT-correspondence", which is a mathematical correspondence, or "duality" between a gravitational theory (which may contain black holes) and a "Gauge theory", which is the kind of theory that is used to describe quarks, electrons etc.

    The duality means that calculations on black holes may (possibly) be used to understand certain things about this "fireball", but it doesn't mean that the fireball is actually a black hole.

    1. Re:Not black hole, but the dual of one by the_2nd_coming · · Score: 1

      it is the black hole of quantum mechanics basically.

      --



      I am the Alpha and the Omega-3
    2. Re:Not black hole, but the dual of one by Jerf · · Score: 4, Interesting

      This reminds me of something I saw from a while back, the idea of an optical black hole.

      Basically, it has nothing to do with gravitational black holes, but the semi-hysterical press stories didn't pick up on that at the time either.

      I'd explain it, but follow the link, or try this one for something clearer and simpler. I got these links from this search, but not all the results look relevant. Still, you may be able to find more, at least starting there.

    3. Re:Not black hole, but the dual of one by Anonymous Coward · · Score: 0

      This is all good, but does it run linux?

    4. Re:Not black hole, but the dual of one by Anonymous Coward · · Score: 0

      One thing interest me about the paper.
      No where in his explanation did he say that it may have been the result of God.

      I'll be printing his equations in this years Christmas cards in a hope to convert the masses.

    5. Re:Not black hole, but the dual of one by internic · · Score: 2, Informative

      Thank you. Yours is one of the more useful comments I've seen on /. From the abstract on the arXiv, I think you're correct. The first sentance of the abstract says, "...he fireball observed at RHIC is (the analog of) a dual black hole." I'd say the words "analog of" are key.

      It's also important in general to remember that things on the arXiv have not yet been peer reviewed. There's still a lot of good work there, but it should be taken with a grain of salt. Even good, legitimate scientists make mistakes. It's very useful for experts who can look at the details with a skeptical eye, but maybe not as useful for laymen.

      --
      "You call it a new way of thinking; I call it regression to ignorance!" -- Operation Ivy
    6. Re:Not black hole, but the dual of one by Anonymous Coward · · Score: 0

      So is it a tiny Big Bang then ? Or a tiny Big Squeeze ?

    7. Re:Not black hole, but the dual of one by Anonymous Coward · · Score: 0

      Correct, just as the two-body Newtonian gravity problem is dual to a higher dimensional complex two-body harmonic oscillator problem. But planetary motion != complex dimensional springs.

  96. romulan warbird by Anonymous Coward · · Score: 0

    now we can make romulan warbirds. :P

  97. May I be the first to say... by M.C.+Hampster · · Score: 4, Funny

    aaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhh!!!!!!!!

    *arms flailing*

    --
    Forget the whales - save the babies.
  98. Stack overflow by DeadVulcan · · Score: 1

    Too! Many! Nested quotes!

    Argh.

    --
    Accountability on the heads of the powerful.
    Power in the hands of the accountable.
  99. Re:Yet another milestone in my Earth Destruction P by ceejayoz · · Score: 1

    That's sorta the plot of Singularity (amzn aff warning) where the Tunguska Object turns out to have been a black hole.

  100. David Brin has a great novel on this by Anonymous Coward · · Score: 1, Informative

    Check out Earth.

  101. Hawking radiation by StrawberryFrog · · Score: 1

    These tiny blackholes will ... slowly grow one quark at a time

    Dude, get with the times. Micro black holes evaporate rapidly due to Hawking radiation. That was known in 1976, more than a quarter century ago.

    --

    My Karma: ran over your Dogma
    StrawberryFrog

  102. Hollywood by Anonymous Coward · · Score: 0

    I hear the hollywood copy machine churning out new catastrophe scripts already, based on the "OMG I created a black hole!" scenario. Jeff Goldblum is already cast.

  103. Re:uh oh. Do you realize there's a real danger... by Gilmoure · · Score: 2, Funny

    Don't forget the SciFi channel direct to video: Anasquitto vs. Pythlack Hole!

    --
    I drank what? -- Socrates
  104. So essentially what they are saying is... by Locke2005 · · Score: 1

    they think this fireball sucks?

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
  105. ..Entertainment by daquake · · Score: 1

    You know this is a crappy TV Disaster Movie waiting to happen.

    --
    Be True, Unbeliever
  106. Clever... by VAXcat · · Score: 1

    ..and I thought it was clever when Larry Niven wrote about it in "The Hole Man" (although that was Mars he destroyed), circa 1969.

    --
    There is no God, and Dirac is his prophet.
    1. Re:Clever... by anubi · · Score: 1
      That was also the first thing that popped into my mind when I saw this topic.

      Talking about a pandora's box!

      If we ever succeed in making a stable black hole, then find ourselves incapable of destroying it, what do we do with it???

      If we ever lose containment of it, it should do exactly as Larry predicted, with the gravitation of the Earth pulling it straight to the core of the earth, while it eats everything in its path like an insatiable termite, growing exponentially as it consumes the mass of the earth itself.

      To me, this is a very scary scenario, and whats more scary is that it may be do-able!!!

      --
      "Prove all things; hold fast that which is good." [KJV: I Thessalonians 5:21]

    2. Re:Clever... by RealBorg · · Score: 1

      Can we be certain that this hasn't already happened? The black hole may just have disappeared from their instruments because it was sucked straight to the core of our planet where it has already started growing...

    3. Re:Clever... by anubi · · Score: 1
      If nothing else, this scenario would have been an ideal "Star Trek" episode where their Time-Travel buddy had to intervene to save Earth from its own inhabitants

      Wouldn't it be scary if we found other civilizations which existed just long enough to start experimenting with nuclear energies, only to create stable black holes - not knowing what they had done, only setting the stage for their own destruction, much like children in the house playing with matches?

      Nightmares - the kind I have - are spawned from concepts such as this. I don't have many nightmares, because as as a techie, I know how most things work, hence I have no fear of it. My nightmares center on having my house broke into, or a barber that ruins years of effort growing my hair, but this - I have a great fear of... as I know what it is, yet do not have the slightest inkling of what to do with one if I somehow made one.

      --
      "Prove all things; hold fast that which is good." [KJV: I Thessalonians 5:21]

  107. Please get rid of it by ExileOnHoth · · Score: 0, Redundant

    Haven't these people ever seen a movie?

  108. David Brin's 'Earth' by tinkerton · · Score: 2, Informative

    I've read Haldeman's story and it's related, but it's about creating a huge ambitious setup.

    David Brin's book 'Earth' describes a black hole that 's created at laboratory scale. It's small and innocent and it can't be contained. So it escapes immediately and starts gravitating to the middle of the earth and it grows by sweeping up whatever it passes by. Very slowly at first, but then faster and faster.

    This gives a nice touch to the comment in the article that the black hole is harmless ...
    on would almost forget that the guy in the article is perfectly right.

  109. Re:Yet another milestone in my Earth Destruction P by daniil · · Score: 1

    Like i said, it's a milestone -- just like all those newly reached milestones in Quantum Computing that we're constantly told of. I do not expect it to be working and online tomorrow. Well, actually i do, but this is only a stimulus for my minions to work even harder :H

    --
    Man is a slave because freedom is difficult, whereas slavery is easy.
  110. The scientist's epitaph by halivar · · Score: 1

    He dared to tamper in God's domain.

  111. Re:Yet another milestone in my Earth Destruction P by Ungrounded+Lightning · · Score: 5, Interesting

    You will need: a microscopic black hole having enough mass not to evaporate instantly.

    Actually: You need one big enough to evaporate more slowly than it absorbs matter on its trip. Given the tiny cross-section of even quite massive black holes and high radiation rates when they're small, this is a moderately large - and extremely massive - object.

    The black hole will plummet through the ground, eating its way to the centre of the Earth and all the way through to the other side: then, it'll oscillate back, over and over like a might come to rest at the core due to the resistance of the matter it passes through, [...]

    As it absorbs the matter it also absorbs its momentum. If it absorbs any non-trivial amount of material on its way through it doesn't get near the surface even on the high point of its first half-orbit.

    [...] but it'll have riddled the planet full of holes long before then

    Except very near the surface the planet will have collapsed the holes as fast as they form.

    Also, it has to be moderately large by the time it gets to a near-stop at the core. While it's orbiting at about planetary diameter it's passing through lots of stuff. Once it's at the core it's depending on the pressure to push stuff to it. So it has to be big enough by then that the absorbtion from pressure beats the losses through hawking radiation.

    But even if it evaporates it will have converted a significant mass to energy. Do this enough and something that wouldn't detectably affect the planetary radius could cause a LOT of volcanism - at some geologic time later when the heat makes it to the surface.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  112. Too many "what if's" by inject_hotmail.com · · Score: 0

    Goodness gracious! Great balls!

    Ok...

    1) What if it "disappearing" is actually it blinking off for a second or two, reappearing somewhere else?

    2) What if it's simply invisible to our instruments? God knows we don't have ST:TNG type equipment to properly detect these anomalies!

    3) What if some bozo learns how to "sustain" these things and doesn't have the appropriate container?

    4) What if it attracts the Crystaline Entity(R)?????

    I am all for advancements in technology...we just have to learn about and understand it before we ... uh ... play with it. Where's Stevie when ya need him!

    Oh, and pretty please, NIMBY!

    Inject.

  113. Science imitating science fiction by GatesGhost · · Score: 0

    its like they WANT to destroy the world.

  114. black hole my ass..... by venom600 · · Score: 0, Redundant

    The Brown researcher thinks the particles are disappearing into the fireball's core and reappearing as thermal radiation, just as matter falls into a black hole and comes out as "Hawking" radiation.

    When I eat, food disappears into my mouth and then re-appears in the toilet as a glorious piece of poo. Whoop-de-doo.
  115. Famous Last Words by PineHall · · Score: 1

    I think I can make a Black Hole.

  116. Re:Yet another milestone in my Earth Destruction P by daniil · · Score: 1

    I've never ever watched a single Stargate episode in my whole life (the concept of a black hole eating the Earth was familiar to me from Hyperion, though). I only linked to that web page because i saw the link on another site earlier today and just had to plug it :7

    --
    Man is a slave because freedom is difficult, whereas slavery is easy.
  117. Re:Yet another milestone in my Earth Destruction P by zurkog · · Score: 1, Redundant

    That'd be the short story The Hole Man by Larry Niven. It won the 1975 Hugo for short story, and is included in his collection of short stories, "N-Space."

  118. The things that scientists do.... by Anonymous Coward · · Score: 0

    "Let's create a black hole on the only currently inhabitable planet in our solar system." Is it me or does this just not sound right. Sure, the article says that the energies aren't enough for gravity to be an issue, but come on. I'm sure I'm not the only one who thinks this is slightly dangerous.

    When the scientists started testing the hydrogen bomb, I think they questioned if the explosion would cause the atmosphere to become unstable and start a chain reaction. After all, there is hydrogen in the atmosphere.

  119. such tiny blackholes are unstable by S3D · · Score: 1

    They evaporate very fast due to Hawking_radiation Black hole produced in the collider should have lifetime of the order of magnitude something around 1e-90 second. No danger here.

    1. Re:such tiny blackholes are unstable by Anonymous Coward · · Score: 0

      doesn't string theory imply that such a thing could violate the laws of physics and become stable?

    2. Re:such tiny blackholes are unstable by Anonymous Coward · · Score: 0

      String theory is not yet able to predict the end fate of a black hole. There could be a stable Planck-scale remnant, but it wouldn't be dangerous; if it adsorbed some more mass, it would just evaporate it away again reducing down to its Planck-scale core. Only if it absorbs enough mass that its ability to further adsorb increases more than its rate of radiation is it a danger; but that has nothing to do with whether black holes are ultimately stable.. they still radiate by the Hawking process.

  120. Re:Yet another milestone in my Earth Destruction P by britneys+9th+husband · · Score: 5, Funny

    This is really scary. What if Al Qaeda were to get a hold of this technology? Could they use it to achieve their ultimate mission of destroying Western civilization? Sure, they'd take themselves out too, but there would be 72 virgins waiting for them in heaven, just like there were for the 9/11 hijackers.

    --
    Hear recorded Slashdot headlines on your phone! New service beta testing. Just call (248) 434-5508
  121. John Titor... by nbharatvarma · · Score: 1

    Here I come!!!! You hang in there buddy!!!

    --
    ... and I shall strike upon thee with great vegeance, furious anger and a slightly positive karma.
  122. LOL by Morosoph · · Score: 1
    The effect of a black hole is entirely because of its mass, not its density per se. There's as much danger from a black hole which has a mass of a fraction of a kilogram with anything else of the same mass. The black holes that we see in the heavens are so very dangerous because they have the mass of several stars, and attract other objects accordingly.

    A tiny black hole would attract almost nothing, and barely grow at all, quite apart from the evaporation effect from Hawking radiation.

  123. Military applications by xv4n · · Score: 0

    Black Hole Cannons!!!!!

  124. the greatest discovery of our species history by Anonymous Coward · · Score: 3, Funny

    We just discovered how all the black holes in the universe formed...

    Simple

    Making black holes occurs sooner in a species technological advancement than interstellar travel.

    1. Re:the greatest discovery of our species history by Anonymous Coward · · Score: 0

      Spacefairing aliens are setting up warning beacons at the edge of our galaxy at this very moment.

      Douglas Adams would have loved this for source material about our species wisdom...

  125. Re:Yet another milestone in my Earth Destruction P by Drooling+Iguana · · Score: 1

    In astronomical terms, Mount Everest isn't that big.

    --
    ... I'm addicted to placebos
  126. Inconsistent Fireballs by oskard · · Score: 1

    One article says the fireball lasts

    "just 10 million, billion, billionths of a second"

    Whatever the hell that means.

    Another article says

    "10-23 seconds"

    Also, the first article states the plasma ball is

    "300 times hotter than the surface of the Sun"

    And the second states

    "300 million times hotter than the surface of the sun"

    I say it's a hoax!

    --
    Sigs are for Terrorists.
    1. Re:Inconsistent Fireballs by gtkuhn · · Score: 1

      Well, they could be off by orders of magnitude, and still have the time nailed to within one second... how precise do you want?

      And hot, let me tell ya, even give or take a factor of a million, it's still waaay to hot to touch.

      Big numbers make people go all mushy in the head cuz they just can't conceive what they are describing.

  127. No Danger? by Anonymous Coward · · Score: 0

    Ten times as many jets were being absorbed by the fireball as were predicted by calculations.
    Hmmm...
    However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole.

    Thanks for the words of comfort Dr. Octopus!

  128. Not Muadib! by Anonymous Coward · · Score: 0

    This sounds more like the work of Samantha Carter.

  129. Re:Yet another milestone in my Earth Destruction P by Reignking · · Score: 0

    This story reminds of Dan Brown's "Angels & Demons", too...

    --
    One man's Funny is another man's Offtopic.
  130. Re:Yet another milestone in my Earth Destruction P by HTH+NE1 · · Score: 1

    A couple other stories that dealt with small black holes/singularities loose on Earth: Artifact and Thrice Upon A Time.

    --
    Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
  131. Hey! You can't do that! by hoborocks · · Score: 1

    That's metagaming.

    Jeez.

    --
    AccountKiller
  132. Suck in the Solar System? Methinks not. by FooAtWFU · · Score: 1
    It is not possible for the "entire solar system" to fall into it. It might theoretically just perhaps be vaguely possible to have all of Earth 'fall into' a black hole, yes. But what next?

    Black holes, contrary to popular perception and their portrayal in the media (/me kicks Stargate!) have no more attractive power than the planets (or stars, etc) they formerly were, because that's all the mass they have. If Earth were replaced with an Earth-mass black hole, the Moon would continue about in its orbit just as it does now (well, minus some trivial tidal effects and the like because of mass distribution with the oceans... let's ignore those for now, hmm?) while the system itself continued to orbit about the Sun. Nothing else would be gravitationally affected any differently.

    The force of gravity has an inverse-square relationship with distance. So it's one thing to be right next to an Earth-sized mass the size of Earth, while it's another to be right next to an Earth-sized mass of radius, say, three feet (Earth-sized black holes may actually need to be smaller, but whatever). You can get a lot closer, so the force you experience will be much stronger, and the effects of General Relativity (slower time, et cetera) will be significant.

    --
    The World Wide Web is dying. Soon, we shall have only the Internet.
  133. Re:Yet another milestone in my Earth Destruction P by Daniel+Dvorkin · · Score: 2, Insightful

    In astronomical terms, Mount Everest isn't that big.

    Neither is the entire Earth.

    --
    The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  134. How can it be Hawking radiation? by UnrefinedLayman · · Score: 4, Interesting

    It was my understanding that Hawking radiation is the emission of either a particle or antiparticle from a pair of the two generated just this side of the event horizon of a black hole, where the particle's partner falls into the event horizon and the particle floats on to live another day, appearing as radiation emitting from the black hole. The pair only comes into existence with a boost from the gravity of the black hole.

    If this is done in a particle accelerator, which is a vacuum, and the objects with which we're dealing are gluons and other sub-atomic particles, how can their resultant mass be high enough to generate the requisite gravity for such a thing, and from where is the pair made in the vacuum?

    At the least, shouldn't the other forces override the strength of gravity by an enormous amount?

    1. Re:How can it be Hawking radiation? by the_2nd_coming · · Score: 3, Informative

      hawking radiation is described in black hole thermodynamics. a black hole eventually will shrink and disappear due to radiation of particles from inside.

      --



      I am the Alpha and the Omega-3
    2. Re:How can it be Hawking radiation? by Anonymous Coward · · Score: 3, Informative

      The mass of a black hole doesn't have to be large, if it's a very small black hole. And in certain scenarios, such as those with large extra dimensions, the amount of energy needed to create a microscopic black hole is decreased, basically because gravity becomes comparable in strength to the strong force when you get smaller than the size of the extra dimensions. Hawking radiation from vacuum pair production begins once the black hole is formed.

      Nevertheless, that's not really what's being discussed here.. the paper talks about strong-force physics in the collision which is mathematically "dual" in a certain way to the gravitational description of a black hole.

    3. Re:How can it be Hawking radiation? by UnrefinedLayman · · Score: 2, Interesting
      Nevertheless, that's not really what's being discussed here.. the paper talks about strong-force physics in the collision which is mathematically "dual" in a certain way to the gravitational description of a black hole.
      Ahh, thanks for the clarification. I hadn't gone to the New Scientist page because it clearly said it was subscription only. The first couple of paragraphs from the paper are at the New Scientist link, for anyone who didn't check.

      The second sentence is "A fireball created in a particle accelerator bears a striking similarity to a black hole." I'd be interested in reading it, too bad they require a script.
    4. Re:How can it be Hawking radiation? by Anonymous Coward · · Score: 1, Informative

      Forget the New Scientist article, read the actual paper.

    5. Re:How can it be Hawking radiation? by arevos · · Score: 2, Informative

      Apparently this is not a black hole, merely an object that exhibits some black-hole like properties. However, so far as I know, the formation of a black hole depends only on the volume to mass ratio being small enough. I assume that as one pushes matter together, even on the subatomic scale, there comes at point where the gravitational force will become dominant. Certainly this Black Hold FAQ answer seems to indicate that subatomic black holes are theoretically possible.

      You are also correct to assume that Hawking Radiation does not happen in a true vacuum, i.e. a piece of space devoid of mass and energy. However, quantum physics suggests that there is no such thing as a true vacuum; on the subatomic scale, the fabric of space froths. Particle/anti-particle pairs are created from nothing. These virtual particles zip apart, then are pulled back together again and annihilate themselves. The total mass/energy gained through these interactions always remains at zero.

      However, in my rough, layman's grasp of Hawking Radiation, this changes near the event horizon of a black hole. If one of a virtual particle pair crosses the event horizon, and the other does not, then a curious thing happens (at this point, my understanding of the process breaks down quite a bit). As far as I know, the virtual particles are created in a sort of quantum flux; because they haven't been observed, the particles have not 'decided' which of them is to be the anti-particle, and which is to be made of normal matter. The act of falling into a Black Hole makes a virtual particle into an anti-particle, and thus, the virtual particle outside the black hole becomes a piece of normal matter.

      The overall effect is that a black hole gives off radiation, and shrinks due to small particles of antimatter passing through the event horizon.

      Note that IANAP, and thus I am probably mostly wrong :)

    6. Re:How can it be Hawking radiation? by Trogre · · Score: 1

      Yes, I thought that the article summary was very misleading, stating that black holes convert matter into hawking radiation. AFAIK, hawking radiation exists irrespective of whatever enters the black hole.

      Hawking has even stated recently that (again, AFAIK) he now thinks that nothing ever actually does enter a black hole, it just appears to slow down to an infinetessimal speed as it approaches the event horizon. From the objects point of view, the event horizon appears to shrink farther away the closer it gets to it.

      Or something. My head hurts.

      --
      "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
    7. Re:How can it be Hawking radiation? by gnovos · · Score: 1

      and from where is the pair made in the vacuum?

      From the vacuum. That's exactly where they come from. In the vacuum of outer space, where the "real" black holes are, that's ALSO where they come from.

      --
      "Your superior intellect is no match for our puny weapons!"
    8. Re:How can it be Hawking radiation? by aXis100 · · Score: 1

      "will" is a stong word, and if so it's not from "radiation inside". It's not called a black hole for nothing.

      It's theorised that particle/antiparticle pairs which spontanously form out of the quantum soup can interact with black holes. When they form on the edge of the event horizon, one particle can get sucked in, and and it's twin left outside. The remaining particle streams off, and the energy required to satisfy conservation of energy is gained from the black hole.

    9. Re:How can it be Hawking radiation? by barawn · · Score: 1

      It was my understanding that Hawking radiation is the emission of either a particle or antiparticle from a pair of the two generated just this side of the event horizon of a black hole, where the particle's partner falls into the event horizon and the particle floats on to live another day, appearing as radiation emitting from the black hole. The pair only comes into existence with a boost from the gravity of the black hole.

      Your nick is strangely appropriate in this case, because that's the layman's explanation, and unfortunately, it's not a very strong answer. I've been able to justify to other physicists that it's not a "horrible" layman's explanation for what's going on, but it's certainly not descriptive in any sense.

      What's actually going on is that the number operator (i.e. the mathematical expression that gives you the number of particles present) has a discontinuity at the horizon of the black hole, as the creation/annihilation operators aren't constant over the geometry.

      So really, it's just an effect of the extreme curvature of the spacetime.

      String theory is an attempt to merge other forces into a gravitational theory, so in this case, you're getting a black hole due to forces other than gravity. You still, however, could expect Hawking radiation to exist in the same sense, because you may still have a discontinuity at the horizon.

      Then again, it's still quite bunk, and his belief that his theory agrees with the data pretty much seems to be based on the fact that the freezeout energy was close to (4/pi) times the average mass of a pion. (4/pi) is of order 1, and the object 'froze out' to pions. I really don't think that it's convincing evidence.

    10. Re:How can it be Hawking radiation? by RealBorg · · Score: 1

      That may be correct from the object's point of view, for an observer the event horizon will extend to absorb the particle.

    11. Re:How can it be Hawking radiation? by RealBorg · · Score: 1

      Why do you believe that only antimatter can fall into a black hole? Or why falling into the black hole would force a particle to be antimatter?

  135. Re:uh oh. Do you realize there's a real danger... by DrZZ · · Score: 1

    Well there's John Cramer who has just published an alternate theory explaining the RHIC resluts and has also published a couple of novels based on experimental high energy physics.

  136. Re:Perhaps this is why we SETI finds no intellegen by Anonymous Coward · · Score: 0

    yup. That's what I posted after you got the idea there first...

    what a depressing thought to see shared...

  137. Where's the Kaboom? by Anonymous Coward · · Score: 1, Funny

    There was supposed to be an earth shattering kaboom!

    So much for Illudium Q-32. Perhaps Illudium Q-33 will work.

    --Marvin

    1. Re:Where's the Kaboom? by Anonymous Coward · · Score: 0

      You're supposed to use the Q-36, Marvin.

    2. Re:Where's the Kaboom? by Anonymous Coward · · Score: 0
      Judging from his comment, he's working in that direction.

      "-Up" had to get to version 7 before it was stable...

    3. Re:Where's the Kaboom? by yungblud · · Score: 1

      Nope. As it turns out just a large sucking sound is the last thing we'll hear...along with 'Your friggin' grant is revoked...'

  138. Need parenthesees by Phreakiture · · Score: 1

    Should be 10 (million billion billionths) of a second, not (10 million billion) billionths of a second....

    --
    www.wavefront-av.com
  139. wtf? by mshiltonj · · Score: 4, Funny

    articles are disappearing into the fireball's core and reappearing as thermal radiation

    In technical terms, we call that "burning items to generate heat."

  140. TechnoCore by Anonymous Coward · · Score: 0

    I, for one, welcome our new overlords from
    TechnoCore (until we are still alive on Earth)

  141. Re:Yet another milestone in my Earth Destruction P by Xoljn · · Score: 1

    This also reminds me of "Earth" by David Brin.

  142. Re:Yet another milestone in my Earth Destruction P by Sponge+Bath · · Score: 4, Funny
    ...there would be 72 virgins waiting for them in heaven

    I doubt that many slashdotters will make it to heaven.

  143. Mod Parent up For HEE HAW Reference!!! by mlmurray · · Score: 1

    A Hee Haw Reference on Slashdot. Now there is no doubt that the world will be ending today. ... If it weren't for bad luck I'd have no luck at all ...

    You must be a relatively old codger like me.

  144. I want to see! by eander315 · · Score: 2, Funny

    Can we get a picture of this thing please? Thanks!

    1. Re:I want to see! by HaveNoMouth · · Score: 2, Funny
      Can we get a picture of this thing please? Thanks!

      Don't be silly. Everybody knows you can't take a picture of a black hole. And that's the second thing that black holes and vampires have in common.

    2. Re:I want to see! by Alsee · · Score: 1

      Here ya go. It's been helpfully circled.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  145. How gauche by Anonymous Coward · · Score: 1, Insightful

    Next time, leave the punchline to someone else.

    1. Re:How gauche by Anonymous Coward · · Score: 0

      Or at least do it as an AC, like I did.

    2. Re:How gauche by roman_mir · · Score: 1

      you had your 2 minutes

  146. Re:Yet another milestone in my Earth Destruction P by Wiwi+Jumbo · · Score: 2, Insightful

    True, but it's also a *hell* of a lot more then we can shoot through a particle accelerator as I understand it... :-)

    --
    Wiwi
    "I trust in my abilities,
    but I want more then they offer"
  147. I really wish they would this elsewhere... by bluprint · · Score: 1

    Seriously, at what point do these types of experiments become "playing with fire"? Sure, even if they created a blackhole, it may just decay instead of grow, but what if they are wrong about that? That would suck.

    --
    A modern day witchhunt.
  148. Holy Back in Black by Doc+Ruby · · Score: 3, Informative

    Brookhaven NL, where the RHIC's new black hole lives, indulged in the possibility of creating a "strange" black hole about 6 years ago. 50 miles from NYC. What have they got against us?

    --

    --
    make install -not war

  149. aaaand by Anonymous Coward · · Score: 0

    I haven't ever heard of Titor before... but that reference in the wikpedia article was to me the spookiest prediction...

  150. Einstein's Bridge by argent · · Score: 2, Interesting

    Now an experimentalist and a theorist, both from the University of Washington, John G. Cramer (206-543-9194, cramer@phys.washington.edu)

    For those who aren't SF fans, I believe this is the same John Cramer who wrote the novel _Einstein's bridge_, about interdimensional gateways created by accident in the Superconducting Supercollider. No, not our abandoned project, but the one in a parallel universe where the SSC wasn't cancelled... and is poking holes into our universe in the middle of the empty Texas prarie.

    Let's keep an eye out for doppelgangers of nuclear physicists mysteriously showing up in New York...

  151. brr by sla291 · · Score: 1

    The headline of the next news id "Lab Made into a Black Hole" ...

    1. Re:brr by narcc · · Score: 1

      I think I just might read:
      "Lab Made into a Bl

  152. negative metastable strangelets by mark_osmd · · Score: 1

    Yet another way to destroy the earth: http://chess.captain.at/strangelets-faq.html

  153. Earth by argent · · Score: 1

    These tiny blackholes will fall into the core of the earth, and slowly grow one quark at a time, but at an accelerating rate.

    I'm sorry, Doctor Evil, but David Brin already wrote that novel.

  154. Re:NINJAS! by norton_I · · Score: 3, Funny

    Turns out, anyone can slow their heartrate to zero if a black hole starts to pass through their body.

  155. Re:Yet another milestone in my Earth Destruction P by Meagermanx · · Score: 1

    Anyone reminded of that Far Side cartoon where a black hole suddenly appears in some guys living rooms?

  156. Exit Mundi by wcrowe · · Score: 1

    Reminds me of Exit Mundi's article on this possibility.

    --
    Proverbs 21:19
  157. Runner-up for Least Reassuring Disclaimer Award by The+Fun+Guy · · Score: 5, Funny

    "... it is not thought to pose a threat"

    I can't tell you how much better that makes me feel.

    Next you're going to tell me the possibility of a resonance cascade is extremely remote and that you're seeing predictable phase arrays.

    --
    The man who does not read good books has no advantage over the man who cannot read them. - Mark Twain
    1. Re:Runner-up for Least Reassuring Disclaimer Award by antispam_ben · · Score: 1
      "... it is not thought to pose a threat"

      I can't tell you how much better that makes me feel.


      As opposed to the first atomic bomb test, which WAS thought to pose a threat (that it would trigger an atomic chain reaction in the air, and the whole world would burn up).

      I've seen enough SF movies to know, they really don't know whether it's a threat or not.
      <vbg>
      --
      Tag lost or not installed.
    2. Re:Runner-up for Least Reassuring Disclaimer Award by haxor.dk · · Score: 1

      "I can't tell you how much better that makes me feel.

      Next you're going to tell me the possibility of a resonance cascade is extremely remote and that you're seeing predictable phase arrays."

      Nitpicking, but shouldn't that be "phaser rays" ?

  158. someone's gonna get it! by dotmax · · Score: 1

    I predict that Mr. Nastase is going to be on thre recieving end of a multi-institutinal, multinational collaborative ass reaming for his blatant and irresponsible sensationalistic bullshit. He goddamn well knows better than to start yapping about black holes without one hell of alot of backup. i'd bounce him the hell off the collaboration. .max d-->nToErVtAaTvReOtN--P operator

  159. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    You would probably have to vaporize the earth just to get the energy to convert a mass the size of Mount Everest into a black hole.

  160. Re:Yet another milestone in my Earth Destruction P by Schemat1c · · Score: 2, Funny

    It was a short story in N-Space called "The Hole Man" by Larry Niven. Here karma karma, come here karma

    Oh look, the karma is running away. Bye karma, bye bye karma.

    --

    "Nobody knows the age of the human race, but everybody agrees that it is old enough to know better." - Unknown
  161. Another megaparsec toward New Intergalactic Void by ankhank · · Score: 1

    Why think small?

    We know that the distribution of galaxies is in thin sheets surrounding large voids.

    Now, how do we get the voids?
    Intelligence capable of creating a breakdown in fundamental physical constants must arise, if only rarely and randomly distributed across the universe; say once per million galaxies per billion years.

    What happens when they build a device capable of varying some of the physical constants that create the universe as we know it?

    Perhaps a new large empty void in the universe?

    How would the universe look, if that's been happening? Like this?

    http://http//www2.aao.gov.au/2dFGRS/

    Think big!

  162. How original... by amightywind · · Score: 2, Insightful

    Queue the predictable Austin Powers quotes.

    --
    an ill wind that blows no good
    1. Re:How original... by AyeRoxor! · · Score: 0, Offtopic

      amightywind - How original... Queue the predictable Austin Powers quotes.

      Looking at your post history, you're not normally a dick. So maybe you just need a nap?

    2. Re:How original... by poopdeville · · Score: 1

      I'm with GP. I know funny, and that wasn't funny.

      --
      After all, I am strangely colored.
    3. Re:How original... by blincoln · · Score: 2, Insightful

      Looking at your post history, you're not normally a dick. So maybe you just need a nap?

      Or maybe s/he is just sick of every science discussion on Slashdot devolving into unoriginal attempts at humour that average about 4.3x10^-2 picoCartmans.

      --
      "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
    4. Re:How original... by Thing+1 · · Score: 1
      picoCartmans

      I use vi, you insensitive clod!

      --
      I feel fantastic, and I'm still alive.
    5. Re:How original... by AyeRoxor! · · Score: 1

      You want to spank me off?

      BTW, yes, please judge my karma. Notice that it's maxed out. So is yours. Slashdot readers obviously likes your posts and mine. So yes, you are being a dick for going around and saying "My posts are the best, but nobody likes yours and people like you need to get spanked off this forum!" A mighty dick indeed.

      Really, now. Spanked off?

      There are too many people that think their humor is the best and other kinds are "bad, cheap, too British, too dry, needs more salt, etc." Stop being one of them.

    6. Re:How original... by amightywind · · Score: 1

      There are too many people that think their humor is the best and other kinds are "bad, cheap, too British, too dry, needs more salt, etc." Stop being one of them.

      Your point is absurd. I make no claims to promoting my brand of humor. I merely point out that the parent's remark was banal. You and the parent author are obviously kindred spirits. Your ultimate achievement is to get that +1 Funny. I find your kind tiresome. Other replies to my post agree. So go back to the main forum. You might get a chance to comment on the next slashdotted website.

      P.S. So you have a high Karma value huh? Wow, I'm impressed. I bet you have lots of Friends too. Lamer.

      --
      an ill wind that blows no good
    7. Re:How original... by AyeRoxor! · · Score: 1

      Your point is absurd. I make no claims to promoting my brand of humor. I merely point out that the parent's remark was banal.

      Try to learn English

      Your point is absurd. I make no claims to promoting my brand of humor. I merely point out that the parent's remark was banal.

      Try not to prove my point when arguing with it.

      Lamer

      It's not the 1990's any more. Sorry. :'(

    8. Re:How original... by amightywind · · Score: 1

      Try to learn English

      A grammer flame? It requires about as much wit as your +1 Funny posts.

      It's not the 1990's any more. Sorry. :'(

      And what about smileys? God you're dumb.

      --
      an ill wind that blows no good
    9. Re:How original... by AyeRoxor! · · Score: 1

      "grammar."

      Oh, and everyone who uses emoticons is dumb? That must make you feel so smart! Something has to.

      yawn.

    10. Re:How original... by amightywind · · Score: 1

      Are you still here?

      "grammar."

      Spelling flames are boring too.

      Oh, and everyone who uses emoticons is dumb?

      Weren't we talking about smileys? Do you have A.D.D.?

      --
      an ill wind that blows no good
  163. Re:Yet another milestone in my Earth Destruction P by monkeyfamily · · Score: 3, Interesting

    David Brin is great, and Earth is probably the most relevant story to this news, as part of its plot involves a man-made black hole. Besides the black hole stuff, it's a great attempt at a 50-year prediction. 50-year predictions are tricky because they need some big leaps but nothing too discontinuous, and cool because they're a time frame that a lot of us might live to see tested.

  164. NO, Wait, don't click that --- by ankhank · · Score: 1

    Corrected:
    http://www2.aao.gov.au/2dFGRS/

    should take you here:

    The 2dF Galaxy Redshift Survey
    Final Data Release - 30 June 2003

    The malformed link in the previous post somehow takes you directly to a black hole. Don't go there.

  165. Just how hot? by Anonymous Coward · · Score: 1, Interesting

    From BBC: These form a ball of plasma about 300 times hotter than the surface of the Sun.

    From New Scientist: These particles form a ball of plasma about 300 million times hotter than the surface of the sun

    AND

    From BBC: This fireball, which lasts just 10 million, billion, billionths of a second...

    From New Scientist: The fireball, which lasts a mere 10-23 seconds, can be detected because it absorbs jets of particles produced by the collision

    Are they covering the same story?

    1. Re:Just how hot? by be-fan · · Score: 1

      They seem to be typos. I'm sure the first one is a typo, and the second one actually means 10^-23, not 10-23 seconds :)

      --
      A deep unwavering belief is a sure sign you're missing something...
    2. Re:Just how hot? by gtkuhn · · Score: 1

      Ya, but 10 million, billion billionths is 10e-24, right?

  166. RHIC public relations by Anonymous Coward · · Score: 1, Informative

    When RHIC was announced, some in the scientific community expressed concern that it could do just this. The RHIC public relations crew came out and laughed off the concerns as bogus.

    Specifically, they said that black holes simply cannot be created whatsoever as there just isn't enough matter or energy for this to happen. The full committee report debunking any such black hole nonsense can be found here.

    So now that it has been demonstrated that RHIC's scientists were completely wrong, we're supposed to have further confidence in them how? That the accidental black hole didn't cause the earth to disappear isn't quite sufficient for an answer.

  167. Andromeda Reference... by Anonymous Coward · · Score: 0

    Has anyone found this phenomenom's Avatar to question it about it's intentions?

    This shouldn't be too hard, as they may most likely be someone with skin that appears colored wildly, possibly mentally spaced out (if they are truely unaware of their origin or even what they are), benevolent and well intentioned, or even quite deceitful and manipulative at getting their desires (if they are aware of their origin and what they are).

  168. Wouldn't oscillate by emarkp · · Score: 1

    As the black hole plummeted towards the core, it would accrete matter, which would keep it from accelerating so much. It would come to rest at the center of the Earth, where the molten core would be quickly consumed, followed by the rest of the planet.

    1. Re:Wouldn't oscillate by Anonymous Coward · · Score: 0

      Uh, no. Its acceleration is independent of its mass (unless it gets very massive, comparable to Earth's mass). It would behave more or less identically to a small particle falling through a hole drilled through the Earth -- again, until it has adsorbed so much mass that it becomse comparable in mass to (what remained of) the Earth itself.

    2. Re:Wouldn't oscillate by emarkp · · Score: 1
      Um, yes.

      First of all, as it descends towards the Earth's core, the acceleration decreases because there's less mass "below" it.

      To be more rigorous, once you're under the surface, you have to gravity vectors--one pulling you towards the center, one pulling you away. Inside a thin homogeneous shell, the gravitational force anywhere inside is exactly zero. If you model the Earth as concentric homogenous shells, the acceleration force looks just like that of a spring according to Hooke's law. This is a common freshman physics problem (describe the motion an object would have falling into a hole bored through a planet's center).

      However, as the black hole goes through the earth, it will accrete matter that wasn't in motion, which is basically the opposite of rocketry. If it weren't for gravity it would slow down asymptotically. With gravity it's (very) dampened harmonic motion.

    3. Re:Wouldn't oscillate by Anonymous Coward · · Score: 0

      First of all, as it descends towards the Earth's core, the acceleration decreases because there's less mass "below" it.

      Yes, that's true. I never said otherwise. However, it still oscillates. In fact, it oscillates for quite a long time. The accretion process is very slow until the very end.
  169. Stable black hole? by Stoutlimb · · Score: 2, Interesting

    At what point will the black hole absorb more from the particle stream than it loses to hawking radiation? Can this be achieved in a particle accelerator?

    Considering these are quantum issues, what are the odds?

  170. Re:Yet another milestone in my Earth Destruction P by Guppy06 · · Score: 4, Funny

    "Creating a microscopic black hole is tricky, since one needs a reasonable amount of neutronium, but may possibly be achievable by jamming large numbers of atomic nuclei together until they stick. This is left as an exercise to the reader."

    My God! It's every physics textbook I've ever read!

  171. Firewall? by totoanihilation · · Score: 0, Offtopic

    Any one else read this as "Lab-Made Firewall may be a black hole" ?

    Considering the reliability of my ISP in the last few weeks, I simply figured that's what they were experimenting with...

  172. Re:Yet another milestone in my Earth Destruction P by R2.0 · · Score: 1

    Dammit - I was just about to Google for the title. And my mod points ran out yesterday.

    --
    "As God is my witness, I thought turkeys could fly." A. Carlson
  173. Re:Yet another milestone in my Earth Destruction P by TiggertheMad · · Score: 1, Informative

    Feasibility rating: 2/10. Highly, highly unlikely. But not impossible.

    I really hope that this is just a joke, as there are so many things wrong with this plan, that it makes my head hurt. The feasability is about 0/10. Black holes don't have infinite gravity. The mass of a hole is the same as the mass before it collapsed. So, if you collapse a baseball into a black hole, you have a black hole that weighs the same as a baseball. THE PROBLEM is that it would create an event horizon so small that it would probably pass between all the particles between the surface and the center of the earth. (atoms are mostly empty space, when not being compressed by the immense gravity of say, a neutron star.) Once you have created it, it still only has the gravitational potential of a baseball. Not very menacing.

    So, you make a bigger black hole. The energy or mass you need to create a noticable black hole is probably going to be enough, that it could be better used to simply vaporize the earth.

    Nice try, though.

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
  174. No, they turned it off. by Anonymous Coward · · Score: 0

    Everyone knows it would be irresponsible to leave your black hole running when you leave the lab. Last person out shuts off the lights and the black holes.

  175. Played to the Galactic Darwin Awards audience by Tablizer · · Score: 3, Funny

    "World-wide catastrophe, *phfff*, don't be ridicu

    1. Re:Played to the Galactic Darwin Awards audience by Anonymous Coward · · Score: 0

      So how did you manage to post that or was the HTTP POST cut off by the black hole? :P

  176. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    WRONG...

    It will NOt happily orbit the sun. It has a far larger mass than the earth does so therefore it will have a larger attraction ot the sun's gravity well (pulling the SUN towards it!)

    the asteroids, moon, mars, venus will all disappear first in a nice slurping sound. (didnt know that did you? black holes make a loud slurping sound!)

    more than likely the moons around juipeter and saturn will be slingshot into interstellar space at insane velocities while the gas giants get a high speed diet applied to their butts in a long drawn out slurp...

  177. Re:Yet another milestone in my Earth Destruction P by iceborer · · Score: 5, Funny

    If one did make it, there would then be 73 virgins waiting.

  178. Re:Yet another milestone in my Earth Destruction P by Lord+Bilbo · · Score: 1

    A note on the optimistic side of things...

    Couldn't this be used to get rid of certain pollutants? If you have too much carbon monoxide or carbon dioxide, send it into the black hole! What would happen to nuclear wastes (please experiment carefully before proceeding with this whole-heartedly) if you "throw them in the hopper"?

    Maybe you want a better, and possibly more humane way of getting rid of death row inmates? Throw them in, and poof!!!

    The uses could be endless! But, like anything else, put in the wrong hands, the original subject applies. :(
    But at least then, the rest of the universe can be happy to know that the contant drone of static will someday cease bombarding them from the radio waves and such that we have been sending out since early in the 20th Century!

    --

    I have a bumber sticker in my cubicle that says

  179. Re:Yet another milestone in my Earth Destruction P by R2.0 · · Score: 3, Funny

    No, you just defined Hell: the 72 virgins ARE Slashdotters - all male.

    --
    "As God is my witness, I thought turkeys could fly." A. Carlson
  180. I know this is OT but... by Mr.Sharpy · · Score: 1

    ON the subject of the SciFi channel, does it bother anyone else that they are finally getting a decent set of shows (at least on Friday) with SG1,Atlantis, and BSG, that can garner them some credibility in the TV world but then they go and produce crap like "Mansquito". Mansquito...I think the title says all that needs to be said about this movie and about the quality of management at SciFi.

    Mansquito.

  181. They should try it with Uranium atoms by multiplexo · · Score: 1
    and see if they can generate a Cosm.

    --
    cheap labor conservatives - they want to keep you hungry enough to be thankful for minimum wage.
  182. Run, don't walk... by Anonymous Coward · · Score: 0

    And, of course, scientists are well aware of the risk

    Apparently RHIC's scientists are not. John Marburger, Brookhaven's director, specifically said:

    "There is simply not enough matter or energy in the RHIC collisions to create a black hole. This conclusion does not require difficult or obscure calculations and has not been questioned by any physicist in a relevant field who has considered the matter."

    That's pretty blunt, clearly stating that anyone who believed such an option was possible was a kook or fraud and not possessing a credible scientific background (one should always regard such approaches as a good indication that there is something to be concerned about). Now that the shoe is on the other foot, it would appear that Brookhaven's program should be immediately suspended and its managers and scientists put before Congressional inquiry.

    Read Marburger's earlier statement in full here: Statement on ABCNEWS Website Article on RHIC

  183. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Dude... you should read Singularity by Bill DeSmedt...

  184. creation of the universe by dmf415 · · Score: 1

    This sounds like another experiment on how the universe was created aka 'The big bang theory'.

  185. great... by Anonymous Coward · · Score: 0

    now we have somewhere to put the lawyers...

  186. Re:Yet another milestone in my Earth Destruction P by hab136 · · Score: 1
    ...there would be 72 virgins waiting for them in heaven
    I doubt that many slashdotters will make it to heaven.

    It's only heaven for the receiver, not the 72 slashdotters!

  187. Man made Black Holes ?? by kortex · · Score: 3, Funny

    Hmmmm...wonder if they could be convinced to move their labs closer to Redmond.....

    --
    -- kortex "Not everything that counts can be counted, and not everything that can be counted counts"
  188. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Like slashdotters would know what to do with 72 virgins.

  189. Cool... by humungusfungus · · Score: 1

    Um, how do you turn it off?

    --
    No sig.
  190. Re:Yet another milestone in my Earth Destruction P by Gar+the+Great · · Score: 0

    Yeah, ok ok. So we might destroy the earth or pop a void in the universe or something. Even so, the Register article about this discovery says that the fire ball burned 300x hotter than the surface of the sun...that's surely an abundant source of energy if it could be controlled...yet, doesn't this sound a little bit like that contraption Doc-Oc created in Spider-Man 2? When is April's Fools anyway?

    What about the potential for worm holes and space travel? Wasn't there some posting a while back about surviving the end of the world by sending some spermies and eggs in a nanobot through a black hole in order to populate humans on the other end (whether that be another dimension or another corner of the universe)? Haha!

  191. RHIC Committee by Anonymous Coward · · Score: 0

    According to this article, the possibility of black hole creation is nonexistent:

    The lab faces an odd safety question: Will collisions create black holes, starting a chain reaction that eats up Earth?

    Each blast is too tiny to make a black hole, Ozaki (RHIC's director) says. Nevertheless, the lab has convened a panel to address the doomsday scenarios.


    Somehow I always feel comforted when there's a blue ribbon panel that is convened to address such things. They're always good for a catchy slogan or two, like:

    "Don't Panic!!!"
    "Duck and Cover"
    "At least you won't have to file taxes this year!"

    Think they've convened yet?

  192. Re:Yet another milestone in my Earth Destruction P by nizo · · Score: 2, Interesting

    If you need more minions and you offer health insurance, I know a few unemployed geeks who would like to make your acquaintance.

  193. Now I can get my own wind tunnel! by monopole · · Score: 1

    Just like Miroku's! Gotta work on the containment bracelet 'tho

  194. Re:Yet another milestone in my Earth Destruction P by mmkkbb · · Score: 2, Funny

    You just wasted a lot more than a sig's worth of bandwidth.

    I really hope that this is just a joke

    The bit about the evil minions didn't tip you off?

    --
    -mkb
  195. Blackholes all around? by Deliveranc3 · · Score: 1

    Shouldn't the smallest possible particle have infinite density and therefore be a black hole?

    1. Re:Blackholes all around? by Anonymous Coward · · Score: 0

      Actually, if you plug in the mass, charge, and spin of, say, an electron, it violates the Kerr bound and would be a naked singularity, not a black hole. However, without a theory of quantum gravity, we can't really tell whether an elementary particle ought to be a black hole; our theories break down.

  196. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    It would have a mass equal to that of the Earth, which it adsorbed, plus whatever miniscule mass it had in the first place. The OP was correct.

  197. Stupid story by HaveNoMouth · · Score: 1
    This is just too silly to be believed. The sudden appearance of a black hole on Long Island would have profound consequences for the planet. The very fact that I'm still sitting here scratching my ass and posting to Slashdot proves that the world is still intact.

    Oh wait.

  198. Re:Yet another milestone in my Earth Destruction P by TGK · · Score: 1

    Offtopic, I know, but this has always confused me.

    First, why 72? Why not 73 or 75? Is there some significance to the number 72?

    Second, how are 72 virgins supposed to last you for eternity? I mean.... this is -=forever=- we're talking about. How do you ration that? Even if you only bang one virgin every 100,000,000 years you're still going to run out eventualy. I mean, they're only virgins once right?

    I should probably think less.....

    --
    Killfile(TGK)
    No trees were killed in the creation of this post. However, many electrons were inconvenienced.
  199. Well.. by drwiii · · Score: 1

    This explains why koopa shells disappear when you kick them off the right side of the screen in Super Mario Bros..

  200. better tell Homeland Security by real+gumby · · Score: 1

    What if the terrorists get it? Or the Tourists? This could become a Weapon of Mass Suction! Better keep this out of the hands of furriners!

  201. It's not my fault! by whovian · · Score: 2, Funny

    Prof. X: So, have you finished writing your thesis yet?
    Graduate student: Uh... no.
    Prof. X: And how is that?
    Graduate student: Um...a black hole ate my data?

    --
    To-do List: Receive telemarketing call during a tornado warning. Check.
  202. DUH by Anonymous Coward · · Score: 0

    just wanted to say duh, since alot of the posts are duh......

  203. Re:Yet another milestone in my Earth Destruction P by dmaxwell · · Score: 1

    The singularity wouldn't orbit the Sun very long either. A singularity composed of only one Earth-mass would evaporate due to Hawking radiation very quickly.

  204. Re:Yet another milestone in my Earth Destruction P by MrHops · · Score: 1

    Also David Brin's "Earth", if I remember the plot correctly. Actually a pretty close correspondence...

  205. Time to leave Krypton!! by solomonrex · · Score: 2, Funny

    Well, this will be my final post. I'm creating a nuclear powered egg to send my child off in, then I'll retire to the South Pacific to wait for the black hole to swallow us all. I tried to warn them- I TRIED! But I can't leave now and cause a panic.

    I can only hope that my son ends up on a planet where the solar radiation allows him to fly around, fighting bad guys and getting hot chicks.

  206. Gratuitus Nod to Jim Carey by hcob$ · · Score: 1

    SMMMMMMMOKIN'!!!!!!!

    --
    Cliff Claven
    K.E.G. Party Chairman
    Founding Leader of: Koncerned for Egalitarin Governance
  207. Re:Yet another milestone in my Earth Destruction P by HiThere · · Score: 1

    Your objections sound reasonable, but you left out one crucial piece of information:

    Just how massive would it need to be?

    --

    I think we've pushed this "anyone can grow up to be president" thing too far.
  208. Ob. Robin Williams Quote by xRelisH · · Score: 1

    That's 72 Crystal clear raisins.

    1. Re:Ob. Robin Williams Quote by loraksus · · Score: 1

      72 Virgils, "You've got a purty mouth"

      --
      1q2w3e4r5t6y7u8i9o0pqawsedrftgthyjukilo;p'azsxdcfv gbhnjmk,l.;/
  209. Re:Yet another milestone in my Earth Destruction P by HiThere · · Score: 1

    because 5 * 72 = 362 (nearly a year allow 3 or 4 special uncounted holidays).
    You did know that Allah was one of the Sun Gods didn't you?

    --

    I think we've pushed this "anyone can grow up to be president" thing too far.
  210. Next Big Bang Coming Up by Anonymous Coward · · Score: 0

    Hold on to your hats. Creation of the next universe is getting near...

  211. Duct Tape and Plastic, HA! by solomonrex · · Score: 2, Funny

    Everyone knows you just need duct tape.

    The particle accelerator has 2 miles of maintenance corridors, 3 miles of wires, a 4 terabyte of data storage, and is held together with 11 miles of duct tape.

    A 'Super String' was discovered yesterday in a quantum-super-electron microscope. It appeared to be a flat ribbon-like material that was sticky on one side and silvery on the other.

    1. Re:Duct Tape and Plastic, HA! by Alsee · · Score: 1

      The particle accelerator has 2 miles of maintenance corridors, 3 miles of wires, a 4 terabyte of data storage, and is held together with 11 miles of duct tape.

      2+3+4 is 9. So what do they do with the other 2 miles of duct tape?

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    2. Re:Duct Tape and Plastic, HA! by Anonymous Coward · · Score: 0

      2+3+4 is 9. So what do they do with the other 2 miles of duct tape?

      dude, the tape must make circles around the stuff, its not laid straight. and it must overlap some.

      but don't feel bad. duct taping is just too advanced for science. when you finish your sixth post-phd in particle physics you can try your hand at duct tape phisics!

    3. Re:Duct Tape and Plastic, HA! by Alsee · · Score: 1

      Actually it was a two level gag, with the real joke being on the second level. The arithmetic is correct but the math is wrong. Check the units.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  212. Re:Yet another milestone in my Earth Destruction P by stg · · Score: 0, Troll

    Is that book about the goatse guy?

  213. Re:Yet another milestone in my Earth Destruction P by HiThere · · Score: 1

    Actually, with a sufficiently large micro-black hole it would work quite well. Unless, that is, the center of the earth is solid rather than liquid. If it is, indeed, solid, then the hole might mot be large enough to create a void that particles would collapse into...

    OTOH, even if it's normally solid, the Hawking radiation would probably raise the temperature sufficiently to melt it. So then the hole would start growing again.

    The problem is getting the "sufficiently large micro-black hole". It would obviously need to start out with a capture cross-section significantly larger than a proton, but how large isn't obvious.

    --

    I think we've pushed this "anyone can grow up to be president" thing too far.
  214. Re:Yet another milestone in my Earth Destruction P by jedidiah · · Score: 1

    Worse than that. They've been virgins so long, and are so desperate that they'll gladly just do whatever hole that happens to come along. They're also equipped well enough to make any resistance from the hapless islamist terrorist resistance. ...puts a different spin on: "resistance is futile, you will service us".

    --
    A Pirate and a Puritan look the same on a balance sheet.
  215. Insolence! I'm no minion of yours! by SamSim · · Score: 1

    Quite the opposite! In fact, not even that! You're fired!

    1. Re:Insolence! I'm no minion of yours! by daniil · · Score: 1
      Damn. I've so been caught with my pants down. And here i was hoping i could get away with copy-pasting stuff from your site. I hope you're not too mad at me :7

      (In case you're wondering, i found the link to your Earth-destruction page on dirty.ru and just had to plug it somewhere; this story here was just like heaven sent for me...)

      --
      Man is a slave because freedom is difficult, whereas slavery is easy.
    2. Re:Insolence! I'm no minion of yours! by SamSim · · Score: 1

      Not a problem, just copying one method - or the introduction - is fine by me. People who copy/paste the entire thing are the ones who incur my wrath. :)

  216. Bush was quoted as saying: by ImaLamer · · Score: 1
    Yahoo! (30 Min Ago) - Today the President said this on the idea of PMDs (Particles of Mass Destruction)
    "We must stop Al Qaeda's search for this technology today. Facing clear evidence of peril, we cannot wait for the final proof -- the smoking gun -- that could come in the form of a accretion disk*."

    *
  217. Re:Yet another milestone in my Earth Destruction P by daniil · · Score: 2, Informative
    Well, i can't offer you health insurance, but i can offer you "protection" (you wouldn't want anything to happen to that nice little internet of yours, would you?).

    I so succeeded it, didn't i? ^_^

    --
    Man is a slave because freedom is difficult, whereas slavery is easy.
  218. making black holes by moondo · · Score: 1

    should've guessed that it was not god, but some dudes in a lab that are responsible for the tsunami...

  219. Where are the true geeks today? by EvilSuggestions · · Score: 1

    Geez, hundreds of comments on an article about creating an artificial singularity, and so far not a single discussion of Romulan engine technology. It just doesn't make sense.

    There must be a new mmorpg/comic book/faster cpu/sci-fi movie/Taco Bell menu item out today that's distracting the true card-carrying geeks away from their beloved Slashdot.

    --
    "There is a thin line between ignorance and arrogance, and only I have managed to erase that line." - Dr. Science
  220. Big Deal by eomnimedia · · Score: 1

    Microsoft created a lab-created black hole called, "Windows."

  221. Re:Yet another milestone in my Earth Destruction P by JackCroww · · Score: 2, Interesting

    Because they believe that the defiled virgins would have their virginity miraculously restored after the fact. I shit you not; they do believe this. It is, after all, in Paradise, where all things are possible.

    --
    "Ayn Rand is a bloody socialist compared to me." - Robert A. Heinlein
  222. Now we can power our Romulan warp drive by Graemee · · Score: 1

    Didn't they use a synthentic singularity to power their ships on STNG?

  223. Re:Yet another milestone in my Earth Destruction P by SamSim · · Score: 1

    You need, apparently, to compress something roughly the size of Mount Everest to get a black hole big enough. I don't know how much energy it'd take to turn that into a black hole of the same mass, but it can't be much more than the 10^26 or so Joules needed to deconstruct the Earth manually, can it?

    For the record, and I suppose you might already have figured this out but I'm saying it just in case, the feasibility ratings aren't strictly speaking probabilities. 2/10 doesn't imply a 20% chance of it working. They're more like putting all the methods in order on a line from zero to ten, then spacing them out a bit.

  224. Re:Yet another milestone in my Earth Destruction P by Neurotoxic666 · · Score: 1

    Once you have created it, it still only has the gravitational potential of a baseball. Not very menacing.

    I'm curious: would you be willing to touch the thing? What would happen if you touch it with the tip of your finger?

    --
    You are more than the sum of what you consume. Desire is not an occupation.
  225. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Where did you get the 10^26 joules figure for deconstructing the Earth manually? The gravitational binding energy of the Earth is 3/5 GM^2/R, which comes out to about 4 x 10^32 joules if I did the math correctly.

  226. all slashdotters go to heaven by realitybath1 · · Score: 0

    the 72 virgins wating for them are other slashdotters.

  227. Re:Yet another milestone in my Earth Destruction P by HiThere · · Score: 1

    Well, after you take a bit off, the rest comes off more easily.

    (OTOH, I certainly didn't do any math for that. My congrats to you for even a rough maximum.)

    --

    I think we've pushed this "anyone can grow up to be president" thing too far.
  228. Re:Yet another milestone in my Earth Destruction P by SamSim · · Score: 1

    You are correct. I modified the page accordingly. Thanks for your comments.

  229. Hey a new FPS weapon by farzadb82 · · Score: 1

    Wouldn't this make a really cool weapon for FPS games. I mean you just shoot it at an object or person(s) and it/they simply get sucked into the black hole in a wild manner (Think outside-in).

  230. Re:Yet another milestone in my Earth Destruction P by Suidae · · Score: 4, Interesting

    Hmm, could you levitate a black hole against the force of gravity and feed it matter at a rate equal to its evaporation rate, then use the radiated energy as a heat source?

    Would such a construct be a useful direct mass to energy conversion device? Or would it just irradiate all the mass in the vicinity, producing lots of radioactive crap to get rid of?

  231. Re:Yet another milestone in my Earth Destruction P by SamSim · · Score: 1

    I used KE = (1/2)mv^2 where m is the Earth's mass and v is escape velocity of 11km/s. Out of curiosity, may I ask you where you got your gravitational binding energy formula from?

  232. Star Trek by midimastah · · Score: 2, Interesting

    This is the first step to building the Romulan Warbird I've always wanted!!!

  233. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    You could levitate it electrostatically if you charged it, but it would be a lot safer to put it in orbit and beam power down, or something.

    It would be impractical to feed it at a rate sufficient to keep it from evaporating, however. But if you could, it would indeed be a useful direct mass-energy converter. It would irradiate things, but with that kind of potential energy output, I'd live with it... again, put it in orbit.

  234. Re:Yet another milestone in my Earth Destruction P by SamSim · · Score: 1

    Ack, I hate replying to myself... yes, I know escape velocity will decrease as more mass is removed, this is a first (over)estimate.

  235. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 1, Interesting

    Your formula applies to launching a point mass with the mass of the Earth away from another planet the size of the Earth. Mine applies to dispersing all of the matter within the Earth to infinity, which I think is the correct thing to do.

    a derivation of the gravitational binding energy formula. (Too lazy to type it in myself.)

  236. Re:Yet another milestone in my Earth Destruction P by SamSim · · Score: 1

    erm, 360

  237. just fell off the turnip truck by Zilfondel2 · · Score: 1

    eh?

  238. Typical Bloody Americans by Anonymous Coward · · Score: 0

    They have to use gold atoms, don't they? I bet CERN uses something much cheaper, like iron atoms.

    Americans just have to show off their bling bling.

  239. Re:Yet another milestone in my Earth Destruction P by clarkcox3 · · Score: 1

    IANAP, but I believe it would pass right through your finger without you even noticing. Remember, as the GP stated, even if you compressed a baseball down to a singularity, it would still only have the mass of a baseball, and its gravity would only pull on other matter as hard as said baseball would.

    --
    There are no tiger attacks in my area and it's all because this rock I'm holding keeps the tigers away.
  240. Black holes do "suck"... by Anonymous Coward · · Score: 0

    No most smart people know that the feeling of two opposite pole magnets coming together would be the feeling of what a blackhole is doing... a sucking would be appropriate ESPECIALLY if ATMOSPHERE was being pulled toward the center of the object...

  241. Re:Yet another milestone in my Earth Destruction P by Zenaku · · Score: 1
    300x hotter than the surface of the sun, and smaller than a subatomic particle doesn't actually amount to very much heat.

    And you wouldn't get more energy out of the black hole than the amount of energy you expended in creating it and the mass you fed into it. Why? SECOND LAW OF THERMODYNAMICS!

    --
    If fate makes you a motorcycle, you become a motorcycle.
  242. One use for this? by jurt1235 · · Score: 1

    Dump toxic waste into it?

    --

    My wife's sketchblog Blob[p]: Gastrono-me
    1. Re:One use for this? by RealBorg · · Score: 1

      I guess the inhabitants of some other universe would be really grateful for this :-/

    2. Re:One use for this? by jurt1235 · · Score: 1

      Recently they proved that Einsteins tunnel does not exist (Stephen Hawking lost an encyclopedia on this (-: )

      --

      My wife's sketchblog Blob[p]: Gastrono-me
  243. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    So? Just getting energy out equal to the mass fed in is plenty -- total mass-energy conversion.

  244. Feudalism in decline by Anonymous Coward · · Score: 0

    Holy cow, they've invented synthetic management. How long and the whole glory will be automatic?

  245. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Oh look, the karma is running away. Bye karma, bye bye karma.

    I think that deserves a -1 unsportsmanlike conduct ;)

  246. Re:Yet another milestone in my Earth Destruction P by clarkcox3 · · Score: 1

    Or not. The black hole would have a mass of whatever it started with plus the mass oh the earth., it would NOT have a "far larger mass than the earth does".

    --
    There are no tiger attacks in my area and it's all because this rock I'm holding keeps the tigers away.
  247. Re:Yet another milestone in my Earth Destruction P by Zenaku · · Score: 1

    That would be assuming that Hawking Radiation will directly power our homes, automobiles, and blenders. You might totally convert the mass to Hawking Radiation, but unless all of our devices just suck up hawking radiation out of their surroundings, it is going to become dependent on the efficincy of whatever process you use to convert that radiation into electricity.

    --
    If fate makes you a motorcycle, you become a motorcycle.
  248. Dude why do you have such a negative attitude? by Anonymous Coward · · Score: 0
    With enough positive thinking even a tiny black hole could destroy the Earth. You need to lose the negative attitude. It is giving you bad vibes. Even the smallest black hole should be proud of the fact that it has an event horizon (if it is is only 1 square femtometer) and that it can catch photons (even if it never actually encounters any during its almost infinitely brief lifespan).

    Honestly, I must say that your attitude is harshing my mellow. You're a real buzz-killer. With comments like that I bet you don't get invited to many parties.

    Ok, so now the question is, how much mass does a black hole need to be able to swallow the earth, and where are we going to get that kind of mass? I wonder if we can do this with some kind of distributed computing project.

  249. I put my finger in a black hole once. . . by Anonymous Coward · · Score: 0

    And boy was that black girl pissed off!

  250. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Again, so? Even nuclear reactors depend on mundane electrical-generation processes as heating water or other fluids. That doesn't mean that nuclear reactors aren't very efficient energy sources. Total mass-energy conversion would be even more efficient, even though it's not PERFECT and there are losses along the way.

  251. TARDIS? by Anonymous Coward · · Score: 0

    Isn't this the power source for a TARDIS?

  252. that black hole will suck in all the heaven by porky_pig_jr · · Score: 1

    with all of its virgins as well.

    on the other hand, our civilization is just a mold as far as the universe is concerned. so - in a big cosmic sense - who cares.

  253. Re:Yet another milestone in my Earth Destruction P by David's+Boy+Toy · · Score: 1

    Who wants virgins? Gimme 72 experienced perverts! Now that would almost be worth dying for :)

  254. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Hey, there's a simpler and more feasible way to destroy the earth, ... just try to find the mass of the Higgs-Boson particle.

  255. There's no democracy in black holes by Chinfro · · Score: 1

    Oh, man. I thought Saddam Hussein was bad. He only had fictional WMD's. (Weapons of Mass Destruction)

    I demand that we IMMEDIATELY execute a preemptive strike on these scientists and their WMG's. (Weapons of Mass Gravitation!)

    There could be citizens in that black hole, and it is no less than our duty to go in there and liberationalize them!

    --
    "This is an "A" and "B" conversation. SHUT THE HELL UP!!"
  256. Re:Yet another milestone in my Earth Destruction P by operagost · · Score: 2, Interesting
    This is correct. The Islamic calendar is based on the lunar cycle. This may be related to the fact that Allah is derived from an ancient moon-god who once shared Mecca with many others. Mohammed fused this moon god with his shaky knowledge of the Judeo-Christian YHWH to create Allah.

    He is not a sun god.

    --

    Gamingmuseum.com: Give your 3D accelerator a rest.
  257. Damn Scarrans and Peacekeepers by jfinite · · Score: 1

    Somebody get John Crighton and Aeryn Sun on the horn. Too bad Dargo got killed, maybe they can get Scorpius to help.

  258. Re:Yet another milestone in my Earth Destruction P by fbg111 · · Score: 1

    I doubt that many slashdotters will make it to heaven.

    And even if we did we probably wouldn't make it very far with the virgins anyway...

    --
    Flying is easy, just throw yourself at the ground and miss. -Douglas Adams
  259. Re:Can someone please explain... by Sugar+Watkins · · Score: 1

    ...how an extremely tiny nuclei fireball could possibly possess enough gravitational force to act like, and be considered, a 'black hole'? I minored in physics, and follow scientific discoveries and the research as best I can, but I just can't figure out this mini-black-hole bit. I'd always heard that you'd need the mass of several Sol-size suns to establish a gravity field strong enough to create a black hole, due to the repulsive nature of energetic particles. Gravity is a profoundly weak force compared to the other three forces, correct?

    (And for that matter, the fact that quantum theory researchers talk about graviton particles, and seem to be trying to unify gravity with the other forces, really mystifies me. Didn't Einstein already demonstrate that gravity is a curvature in space-time???)

    But hey, whatever they are creating in the lab, it is comforting to know that Hawking radiation exists! Because black holes kinda suck.

  260. Re:Yet another milestone in my Earth Destruction P by coronaride · · Score: 1

    if i had mod points, you'd get 'em. very clever.. :) of course, i'm married...

    --
    Those who can, do. Those who can't, go into business for themselves.
  261. Gordon Freeman, no.... by Anonymous Coward · · Score: 0

    Freeman Dyson is the better choice....

  262. Re:uh oh. Do you realize there's a real danger... by Anonymous Coward · · Score: 0

    then, we get a dept. of planetary security, and performing mathematical calculations is considered a threat to global security. mathemiticians, physicists, and the occasional engineer are rounded up, and shipped to the moon, for detainment.

  263. black hole in a box by Anonymous Coward · · Score: 0

    I WANT MY BLACK HOLE IN A BOX

  264. Britney Spears cloned? by vcjim · · Score: 1

    When I learned that a black hole was created in a lab, I thought someone had cloned Britney!

  265. Re:Yet another milestone in my Earth Destruction P by demachina · · Score: 0, Troll

    Just to give equal time to religious fanatics on both sides I imagine you should be more worried about fundementalist Christians laying there hands on the technology, especialy those in sects with a strong penchant for dwelling on the Book of Revelation and the Rapture.

    You see they are already sitting around waiting not so patiently for the end of the world and are convinced that God will sweep all the good Christians, them, up to heaven when the end is near and all the heathens will be left to burn in the hell or the black hole, which ever one has the strongest pull.

    --
    @de_machina
  266. Quantum computer... by kbnielsen · · Score: 3, Funny

    Just what they needed to create the quantum computer: A mini black hole as /dev/null

  267. Re:Yet another milestone in my Earth Destruction P by Muhammar · · Score: 1

    "However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole" reads in the press release from the research group.

    (The research team members were not available for interview.)

    --
    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
  268. Well thats interesting, but.... by Bigman · · Score: 1

    From TFA:
    However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole.
    Hmm.. Nice they're so sure its not a threat!!

    --
    *--BigMan--- Time flies like an arrow.. but personally I prefer a nice glass of wine!
    1. Re:Well thats interesting, but.... by RealBorg · · Score: 1

      Let's hope a far more advanced alien species is already watching us and would interfere to prevent disaster in that case.

  269. Complete Garbage: Go back to Physics I by Anonymous Coward · · Score: 0

    According to Newtons law of gravitation which would apply approximately here the acceleration of a body in a gravitational field IS INDEPENDENT of the mass of the body. Remember Galileo's famous Pisa experiment!! Momentum is not conserved when a force acts (also a Newton Law). Ergo as the body picks up mass its acceleration would be unchanged and hence so would its velocity. Of course this assumes the mass of the Earth didn't change much which might lose validity as it was consumed by the hole. Possibly more interesting would be how the wierdo frictional effects between the Earth and blackhole would vary as it's mass grew at the expense of the Earth.

    Actually this sounds like a very difficult Physics Phd project of no use to anyone!

    1. Re:Complete Garbage: Go back to Physics I by Euler · · Score: 1

      You are partly insightful.

      The Pisa experiment compared two masses starting at rest. This pendulum would be a moving mass absorbing a stationary mass. There would be a loss of velocity, but no loss/gain in momentum at any instant when a unit of mass is absorbed. So on the next swing up, you have a larger mass with insufficient momentum and velocity to regain the initial (subterrianian) altitude.

    2. Re:Complete Garbage: Go back to Physics I by Anonymous Coward · · Score: 0

      well, if u want to bother correcting people, perhaps
      u should realize that as u dig into the earth, its gravitational pull declines until it hits 0 at the center (as all the matter is pulling equally outwards in all directions). So as it gets pulled in and gains mass it is also acted upon by a reduced force.

    3. Re:Complete Garbage: Go back to Physics I by Anonymous Coward · · Score: 0

      Even though the PISA experiment did compare at rest masses this is irrelevant:

      F=ma=GmM/r^2

      so a=GM/r^2 independent of M so the hole would accelerate only dependent on M (Earth mass) and r distance from Earth Center AND independent of velocity.

      "Instantaneous" conservation of momentum is ridiculous. Either it is conserved or it isn't. When a force acts it isn't. For the argument to work you need long term conservation i.e. over the full period of the oscillation. Enough of this Karl Rove Pseudo Physics PLEASE!!!

    4. Re:Complete Garbage: Go back to Physics I by Euler · · Score: 1

      You can have an instantaneous just-about-anything if you know your calculus. I didn't say anything about conservation of momentum, I said it doesn't change - subtle difference. The reason is that you are adding mass with a velocity of 0 in the frame of reference. That adds 0 momentum to the system, but mass is increased. I make no claims of conservation since this is an open system (one that is gaining mass without limit.)
      F=ma is inappropriate in this context.
      You should be considering using E = 1/2 * m(v^2) or p = m*v

      Visit this site:
      "The law of conservation of momentum states that the total momentum of any group of objects remains the same unless outside forces act on the objects."

      Note that conservation of momentum only applies if no outside forces are applied. That is only appropriate for a closed system like a textbook case of inelastic collision.

    5. Re:Complete Garbage: Go back to Physics I by Euler · · Score: 1

      good point, but you will encounter greater force again when you go back 'up' on the other side of center. It all works out about the same, you just would tend to 'glide' more in the center without gaining or losing speed than in the periphery.

    6. Re:Complete Garbage: Go back to Physics I by Anonymous Coward · · Score: 0
      Actually this sounds like a very difficult Physics Phd project of no use to anyone!

      I would start by eliminating the effect of angular momentum. Assume you have a blackhole of arbitrary mass X in the center of earth's solid core. Locally, around the blackhole, the core will not be solid. It would be more like singularity, then plasma, then molten (liquid) core, and then solid. Effects to consider:

      Gravity: Insignificant at the center of the earth.

      Pressure: Extreme in the core (like the deep, deep ocean but deeper and leadier). Also pressure from the blackhole effects.

      It is a tricky problem because such a black hole is not going to suck via the crushing force of gravity. It will take what it is given. Anyway, I am just rambling and would be curious if someone can solve a simplifed problem first before attacking the black pendulum of death.

  270. Re:Yet another milestone in my Earth Destruction P by stonecypher · · Score: 1

    Given the tiny cross-section of even quite massive black holes and high radiation rates when they're small, this is a moderately large - and extremely massive - object.

    Extremely massive? Yes. Moderately large? No. IANAAP, but there's a Niven short story book which claims that a neutron star with the density of Sol would be roughly the size of a baseball. Black holes are far denser than neutron stars, being massive enough to collapse neutron repulsion.

    Elsewhere in this thread it was suggested that the size needed to balance matter uptake with the amount of mass lost through Hawking radiation is in the neighborhood of Mount Everest for size, which is rather smaller than our sun; I would not blindly repeat another poster's unfounded claim except that I also seem to remember such a claim and also cannot verify its validity. Running with the presumption that the amount of mass needed is less than that of the Earth, however, is quite a bit more reasonable - I am certain that Hawking bleed is a moderately slow thing on planetary scales, and believe that a black hole on par with a planet for mass will not evaporate before its job is done.

    Even given an Earth-massed black hole, if a neutron star the mass of Sol is only a baseball in size, the black hole's superior density and Earth's inferior mass spell one very, very small black hole. Just the mass difference alone would mean that an Earth-massed neutron star would be hard to see without tools; what change the superior density of the black hole would cause should be dramatic, though I don't know the actual numbers in question.

    I remember reading a speculative article by an amateur in a zine on a BBS back before zines were lame which suggested a set of math for exactly this. I have no idea how clueful said amateur was, and it's been almost two decades, so I'll be damned if I can remember so many details. One thing, however, struck me enough that I remember it to this day: his claim, which I cannot defend, was that a black hole which could eventually eat an Earth-sized planet would be smaller than a speck of dust by a major difference, and that one of the practical difficulties of dealing with said black hole (the ongoing discussion was in fact around the short story Hole Man and how one might respond to the situation without evacuating Earth) would be just aiming. There had been a bunch of suggestions regarding thermonuclear devices, lasers and other things trying to excite the contained matter enough to warp the gravity distribution and attempt to cause fragmentation or accelerate Hawking loss, but it seems that even if you have a nuke that'll survive long enough to make it close to a black hole without going off or being destroyed, and even if you surmount the time issues approaching the Schwartzschild radius, that it's gonna be damned hard just to decide where the place you want to aim is going to be.

    --
    StoneCypher is Full of BS
  271. Still wouldn't really be the best way to do it... by TiggertheMad · · Score: 1

    I'm thinking that if you were to take the mass of Mount Everest (1 'EM') and plug it into the equations that give you the schwartzchild radius for an object (URL:http://en.wikipedia.org/wiki/Schwarzschild_ra dius), I think that you could say that the energy needed to create an 'artificial' black hole will be at least equal to the additional mass needed to cause an object to collapse upon itself, since e=mc^2. I say at least, as your method of 'compression' will probably not be as efficient as gravity, and quite possibly many orders of magnitude less efficient.

    Keeping the math simple (hahahahahha...I just SLAY myself....), we can clearly say that Mt. Everest is nowhere close enought to having enough mass to collapse. We could also safely say that another Mt. Everest compressed into the first will still be way off from the total mass needed to collapse, right? However, using the big 'E' man's classic, e=mc^2, we can safely say that a few billion tons of mass * the speed of light is a hell of a lot of energy. Now granted, uranium and plutionium are several times denser than rock, but considering that most nuclear devices can produce megaton yeilds from a scant few pounds of enriched fissile material, I think you can imagine how much energy a few billion tons of mass might be. So, I think it would be safe to say, just using some guesswork that it would take far less energy to simply obliterate the earth, than it would be to engage in black hole silliness. But, I give you points for romantic creativity.

    BTW, while we are talking about it, your page misses a very obvious, plausable, and frighteningly simple method. I'd give this 10/10:

    Modern nuclear weapons are fusion weapons. You fire off a fission weapon to generate the heat/pressure needed to start a fusion reaction. Once fusion is burning, you can dump as much hydrogen isotope into the reaction as you can lay your hands on. Duterium isn't that hard to get, and if you look at the weapon designs from the 1950's, either the Sovie Union or the US probably had the technology needed to construct a doomsday weapon capable of cracking the earth's mantle. Just light off a trillion-megaton yeild device, and that should pretty much take care of the earth. Want fragments rather than large chunks? Add more hydrogen. The only risk of failure is miscalculating the energy needed, and only destroying all life on the planet, rather than fragmenting it. And, just think, this is old technology that at least two countries have mastered. Sleep tight...

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
  272. Re:Yet another milestone in my Earth Destruction P by stonecypher · · Score: 1

    I really hope that this is just a joke

    No, it's the first article in the new globicide category.

    Jesus. Don't even bother modding parent into the ground. Break out the metamoderation sticks.

    --
    StoneCypher is Full of BS
  273. A Truly Nonsensical Statement by John+Hasler · · Score: 2, Informative

    > At these energies and distances, gravity is not
    > the dominant force in a black hole.

    Where do they _find_ these people?

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  274. Re:Yet another milestone in my Earth Destruction P by It'sYerMam · · Score: 1
    Seems unlikely. A black hole of any mass will consume stuff, as long as stuff gets close to it. The thing to bear in mind is that any black hole only has the gravitational pull of what went into it. The thing that makes 'em suck stuff up is that they're so small, so if one is in contact with the earth, it'll slurp up everything that gets too close, gradually gaining mass.
    (Hence, if the sun randomly imploded to a black hole, nothing would get sucked in - it'd just be a helluva lot colder and darker)

    Incidentally, 10 million, billion, billionths of a second sounds to me like 10 million seconds...

    --
    im in ur .sig, writin ur memes.
  275. Not at RHIC, but perhaps the LHC? by xPsi · · Score: 4, Interesting
    Black hole production at RHIC and the various associated doomsday scenarios were discussed back in 1999 in the Jaffe Report. The basic message is that production of micro black holes at RHIC is possible, but the cross section is so tiny you would never see a meaningful signal above background. Also, higher energy densities had already been acheived at the Tevetron back in the 90's, so if black holes could be seen at RHIC, they would have already been seen at Fermilab.

    Now, the LHC (Large Hadron Collider), that's a different story. Here the energy density and black hole production cross sections are actually high enough, a black hole production signal could actually be measured.

    Sadly, in all cases, the black holes evaporate harmlessly.

    --
    i\hbar\dot{\psi}=\hat{H}\psi
    1. Re:Not at RHIC, but perhaps the LHC? by Alsee · · Score: 1

      Sadly, in all cases, the black holes evaporate harmlessly.

      Sadly true, but there's always hope for tomorrow's bigger and more powerful colliders.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  276. it is all in this book by Anonymous Coward · · Score: 0

    Somebody reads too much sience finction. The complete story is here:
    http://www.infinityplus.co.uk/nonfiction/cosm.htm

  277. Fine, how gauche it with you? by Anonymous Coward · · Score: 0

    next time, leave the sniping commentary to someone else :)

  278. Full Frontal Nakedness by Anonymous Coward · · Score: 0

    I have found the best part of black hole study in The Nature of Space and Time lecture.

    "We can see the big bang in full frontal nakedness."
    Stephen Hawking.

  279. Re:Yet another milestone in my Earth Destruction P by Zenaku · · Score: 1
    I was speaking about the efficiency of making use of the energy produced, not incidental energy costs of running the system, but your point is still well taken.

    But if you want to bring up the energy costs of running the system, well. . . I should think that is where the bulk of the problem lies! Remember that in order for this nanoscopic black hole to come into existence, you need to expend an enourmous amount of energy to create and maintain the black hole, and to accelerate particles into it. Remember, the black hole's gravity is negligible at this size, it won't be sucking the particles in all by itself.

    And the mass you are totally converting to energy is a bunch of subatomic particles! They have very little mass to begin with. I am no quantum physicist, but I'd bet real money that if you did the math on this problem your energy output would be less than your energy input.

    --
    If fate makes you a motorcycle, you become a motorcycle.
  280. what is better 72 virgins or 73 virgins ? by dtaczalski · · Score: 3, Funny

    If one did make it, there would then be 73 virgins waiting.

    well... while 73 is a very cool prime number, i personaly find 72=2*2*2*3*3 more interesting one, becouse it can factorized in so many different ways (ex: 9*8, 6*12 2*6*6 and so on) - it can be considered as an advantege. For example you can assign your all 72 virgins into equal groups to do something - the task imposibble with prime number 73. Such a possibility can have an adventage over just having 1.3888% more virgins.

    Alternatively one can argue that you can take one virgin apart to play with her in any way you want and at the sami time assign the remaining 72 virgins into some equal groups, but it puts you in the situation of choosing one over all others which brakes this beautyfull symetry of number 72.

    The question "what is better: 72 virgins in the heaven or 73 virgins in the heaven" seems to be a very thoungh one.

    1. Re:what is better 72 virgins or 73 virgins ? by Anonymous Coward · · Score: 1, Funny

      i think we found number 73

    2. Re:what is better 72 virgins or 73 virgins ? by Anonymous Coward · · Score: 0

      Since the extra virgin is a /.er that would mean that virgin would annihilate with one of the other virgins reducing the number of virgins to 71 and increasing the number of laughing non-virgins to 2.

  281. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    ..and dogs with bees in their mouth, so when they bark, the bees shoot out of their mouth!

  282. Re:Yet another milestone in my Earth Destruction P by dtaczalski · · Score: 1

    No, you just defined Hell: the 72 virgins ARE Slashdotters - all male.

    oh... hmmm... i though the therm "being slashdoted" meant something less disgusting... f**k... hmmm...

    YOU ULGY DISGUSTING DIRTY SLASHDOTERS!

  283. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    I'm just going to train my easterbunny to run at the speed of light. As it nears the speed of light, his mass will rise to infinity, thus sucking in the universe.

    Much more cunning, I'd say.

  284. Re:Yet another milestone in my Earth Destruction P by StikyPad · · Score: 1

    Reminds me of the old "Bomb Squad" T-Shirts...

    "I am an astrophysicist.. If you see me departing the planet at a high velocity, KEEP UP!"

    Hmm.. maybe I should be talking to Think Geek about this.

  285. Hawkings reaction by Legodude522 · · Score: 0

    I call it a hawking hole.

    --
    Because I have low karma, I need pills.
  286. Re:Yet another milestone in my Earth Destruction P by jafuser · · Score: 1

    Another great site for Doomsday scenarios is Exit Mundi.

    They also address this particular genre of doom: http://www.exitmundi.nl/vacuum.htm

    --
    Please consider making an automatic monthly recurring donation to the EFF
  287. Dr. Longbore was right! by riker1384 · · Score: 0

    Those damned physicists are going to collapse Earth into an ultra-dense particle about the size of a pea!

    All aboard the Noah! Ladies, please submit panties for histocompatibility screening!

  288. Re:Yet another milestone in my Earth Destruction P by HiThere · · Score: 1

    He wasn't a Sun god. He has been for centuries.

    I suppose that it was first said of the Moon god "God it is to show the way", since most travel on the desert is at night. And certainly it would be the Moon god who was merciful (as compared to the fearful heat of the day).

    There are lots of other remanents. But he hasn't been a Moon god in a very long time.

    Still, there's about 13 lunar months in a year, so:
    72 * 5 = 360 (thanks for the correction)
    360 / 13 = 27.69 (this time I used a calculator)
    That's pretty close to the 27.5 days in a lunar month, so you're right, it's a solar-lunar reference, not just a solar reference.

    --

    I think we've pushed this "anyone can grow up to be president" thing too far.
  289. There's a catch... by teneighty · · Score: 1

    there would be 72 virgins waiting for them in heaven, just like there were for the 9/11 hijackers

    What Koran didn't mention is that those 72 virgins are all male.

    1. Re:There's a catch... by Tablizer · · Score: 1

      What Koran didn't mention is that those 72 virgins are all male.

      They are female, just not human.

    2. Re:There's a catch... by sydres · · Score: 1

      whats your point and I don't want to sound stereotypical but male islamic culture has had a long standing man boy love history and even one of mohameds highest clergy stated that the 72 virgins may well be you male catamites (look that one up if you don't know it

  290. Re:Yet another milestone in my Earth Destruction P by Glock27 · · Score: 2, Informative
    Seems unlikely. A black hole of any mass will consume stuff, as long as stuff gets close to it. The thing to bear in mind is that any black hole only has the gravitational pull of what went into it. The thing that makes 'em suck stuff up is that they're so small, so if one is in contact with the earth, it'll slurp up everything that gets too close, gradually gaining mass.

    Not true. Read up on "Hawking radiation". Hawking theorized that virtual particle pairs created by tidal forces (which normally recombine for zero net result) would sometimes be split by one falling into the event horizon and the other proceeding into the outside universe. Since tidal forces become exponentially stronger the smaller a black hole is, so does the Hawking radiation. Since mass is conserved in this process, to an outside observer it appears as though the black hole is radiating energy and shrinking. Very small black holes shrink much faster than they can pull in Earth-density mass (small event horizon and total gravity), so such a black hole would simply explode rather than growing. This explosion is expected to be quite large by our standards, by the way.

    (Hence, if the sun randomly imploded to a black hole, nothing would get sucked in - it'd just be a helluva lot colder and darker)

    True, except the potential energy of the Sun's mass in it's current configuration would likely cause a highly energetic event as the mass was sucked into a black hole with a few kilometer event horizon. BTW, I assume you know that a star smaller than 1.4 solar masses can't naturally form a black hole.

    Incidentally, 10 million, billion, billionths of a second sounds to me like 10 million seconds...

    Much simpler to write it as 1.0e-24 secs.

    --
    Galileo: "The Earth revolves around the Sun!"
    Score: -1 100% Flamebait
  291. This is all paranoia by unassimilatible · · Score: 1
    C'mon guys, I live right next to this lab and I don't feel that there is any risk at all.

    Stop being so paranoid. Hey, what is that pulling on my l

    --
    Slashdot "libertarians": Small government for me, big government for those I disagree with. -1, I disagree with you
  292. Re:Yet another milestone in my Earth Destruction P by quantum+bit · · Score: 1

    ...or put it in a Romulan engine core...

  293. Re:I wonder... - fictitious answer by Anonymous Coward · · Score: 0

    There is going to be a civil war this year. Certain factions in the Federal government are going to put on another 9/11. This time not everyone is going to fall in line. In fact, a bold majority will disbelieve the claims about others being behind it and instead focus on the real perpetrators. As an explicit police state rule is put into effect a bold majority will resist the corruption of the state. The "insurrection," if you will, will be fighting against the master shadow puppet government. Resist, be killed. Adhere, give up everything that has been.

    The states' national guard units have been depleted for a reason.

    So, you have a choice: Are you going to fight, risking life. Or, are you going to give up everything for the promised safety of a corrupted false state.

  294. You're wong... by antispam_ben · · Score: 1

    Those damned physicists are going to collapse Earth into an ultra-dense particle about the size of a pea!

    It will be the size of a marble.

    --
    Tag lost or not installed.
  295. Black holes have mass? by Anonymous Coward · · Score: 0

    I didn;t even know they were Catholic.

  296. Re:Yet another milestone in my Earth Destruction P by Temsi · · Score: 1

    72 Virgins... bah... I'll bet you anything after you've gone through 5 of them you'll be begging for a pro.

    And yes, I stole that joke from right wing stooge Dennis Miller... so sue me.

    --
    -- This sig for rent.
  297. And may I be the first to say... by Anonymous Coward · · Score: 0

    ...how much the arXiv kicks ass! There's never before been such a vast, high-quality, centralised repository of scientific research in the history of the human race. Never before have amateurs been able to access the most cutting-edge science our civilisation has produced - quickly, easily, and for free.

    Thanks to all those who have made it possible.

  298. Re:Yet another milestone in my Earth Destruction P by winterdrake · · Score: 1

    Actually I was thinking South Park, Volcano.

    "That's right Jane, duck and cover!"

  299. Bloody hell. by TractorBarry · · Score: 1

    Damn those eggheads...

    First they're sending spam out into the galaxy and now they've "possibly" created a black hole on Earth.

    Don't they ever watch horror films ? or can they not see the inevitable ending ?

    Oh well, time to go back to my home world then :)

    --
    Sky subscribers are morons. They pay to be advertised at !
  300. Re:Yet another milestone in my Earth Destruction P by essreenim · · Score: 0
    not impossible.

    just highly improbable : )

  301. Re:Yet another milestone in my Earth Destruction P by Ungrounded+Lightning · · Score: 1

    Extremely massive? Yes. Moderately large? No. IANAAP, but there's a Niven short story book which claims that a neutron star with the density of Sol would be roughly the size of a baseball.

    I'm sorry I was confusing. By "moderately large" I mean "in comparison to a subatomic particle or an atomic nucleus". That's still quite a few orders of magnitude down from a marble or basketball. (When a nuclear engineer talks about the cross-section of the broad side of a barn he's talking about a MUCH smaller barn than a farmer would be. B-) )

    Even at earth-core pressures your black hole isn't going to be eating much matter - let alone enough to keep ahead of hawking radiation - unless its event horzon is getting up to a size comparable to molecules, rather than subhadronic particles. That requires a LOT more mass than the ions they're smashing together in the news item.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  302. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 1, Interesting

    You can levitate a charged black hole.

    But Hawking radiation is going to radiate a zoo of particles and I am not sure how useful that would be.

    Classically you can lower a mass from a wench and extract all of the mass to energy as it approaches the horizon, but the rope required would be rather unrealistic.

  303. Re:Yet another milestone in my Earth Destruction P by Peter+Greenwood · · Score: 1

    could you levitate a black hole against the force of gravity and feed it matter

    Do both at once - feed the matter in fast enough, from underneath. You're now playing the world's most dangerous game of keepy-uppy.

    Wonder if this would generate enough power to make the Alcubierre warp drive feasible?

    --
    freedom, n. Allowing people you don't like to do things you disapprove of.
  304. in other news... by Anonymous Coward · · Score: 0
    ...the Pentagon has announced a trillion dollar research project to find out "What happens if you make a really big one."



    On the brighter side, we may have just discovered the solution to the Fermi paradox...

  305. Re:Yet another milestone in my Earth Destruction P by F34nor · · Score: 1

    David Brin IS great and writes you back when you e-mail him. We had a great little chat about how Lucas stopped story telling and started using object oriented programing to make his "movies."

    The Uplift universe is my 3rd favorite sci-fi/fantasy world after Middle Earth and Iain M. Banks the Culture series.

    I think we do need to start uplift btw.

  306. Black Hole Creation 101 by Anonymous Coward · · Score: 0

    You just need to have my car and my girlfriend and your wallet will become the black hole which you seek to create.

    They're Pinky... They're Pinky and the Brain, Brain, Brain...Brrrain.

  307. Black Hole?!?!!?! by ananegg · · Score: 1

    Does this mean we're all going to die?

    --
    Insert Pithy Quote here.
  308. Re:A Truly Nonsensical Statement [not] by tfulton2 · · Score: 1

    Perhaps I'm in left field, or rather not even in the ball park, but gravity is the least strong of the four forces classified according to Hawking [gravity, electromagnetic, weak nuclear, and strong nuclear]. He asserts that, because electromagnetic forces usually offset [positive and negative charges], and because large bodies usually have a large amount, they generally cancel each other out. In this case, they might not cancel. Also, only in large bodies do gravitational forces predominate. In speaking of the so-called grand unified theory, he seems to suggest that higher energies produce stronger electromagnetic forces. [Brief History of Time (1998), p. 76] However, the disclaimer is that a particle accelerator large enough to test these theories isn't likely to exist anytime soon. Perhaps these folks have found a new way to develop some tests? My disclaimer, IANAQP.

  309. Re:Yet another milestone in my Earth Destruction P by cybercuzco · · Score: 0, Redundant

    Read Earth by David Brin. Its a book about what happens when some people try to do just that, and the hole gets out of control and falls to the center of the earth.

    --

  310. Re:Yet another milestone in my Earth Destruction P by Rubyflame · · Score: 2, Informative

    a neutron star with the density of Sol would be roughly the size of a baseball

    A neutron star with the density of Sol would not be a neutron star.

    --

    All it takes is nukes and nerves.
  311. Re:Yet another milestone in my Earth Destruction P by pugugly · · Score: 1

    So - If you have a hawking black hole of sufficiently small size, it can effectively convert matter to energy at a predetermined rate for no cost, based on the size of the black hole.

    To keep it stable, you need to add matter at the same rate that it's radiating Hawking radiation. Rather counterintuitively, to lower the energy output, you feed it more matter, to raise it you choke the matter back a bit, let the black hole shrink a bit, and then feed it matter sufficient to stabilize it at the new enrgy output. And of course, if you run out of matter entirely it'll create a runaway reaction as the the black hole evaporates entirely.

    Doesn't this in some way violate thermodynamics? You're turning useless energy removed from the system via entropy into useful energy you can work with again. Given the correctly chosen size for a black hole at the core, you can pick one that produces energy at the same rate as the core feeds it, it heats the core, and you make sure to convert that energy to matter sufficiently to keep it fed.

    What obvious physical limitation am I missing?

    --
    An Invisible Entity of Vast Power whose existence must be taken on faith alone: Liberal Media
  312. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0
    What if Al Qaeda were to get a hold of this technology? Could they use it to achieve their ultimate mission of destroying Western civilization? Sure, they'd take themselves out too, but there would be 72 virgins waiting for them in heaven, just like there were for the 9/11 hijackers.

    It consoles me to note that these women are virgins for precisely the reason why middle eastern men started the tradition of making the women cover their faces: they're so fucking ugly you can't imagine looking at them.

    Islam: verb, noun.
    - verb contraction, "I slam", as in "I slam airplanes into buildings";
    - noun, an adherent of the principles therein, generally employed as a taxi driver or convenience store clerk.

  313. obligatory by rastos1 · · Score: 1
    ...Most people ... have this impression that black holes suck in everything around them with some sort of unstoppable force. This is completely inaccurate.

    Black holes only influence things by their gravity...

    There is no gravity. The Earth sucks.

  314. Re:Yet another milestone in my Earth Destruction P by It'sYerMam · · Score: 1
    Well, you learn something new every day. Thanks for putting me straight - soon I'll know more than my (high school) physics teacher!

    "BTW, I assume you know that a star smaller than 1.4 solar masses can't naturally form a black hole."

    Well, I didn't know the exact figure, but yes - I knew our sun would not do so.

    "Much simpler to write it as 1.0e-24 secs."

    Indeed. Damn those non-mathematicians.

    --
    im in ur .sig, writin ur memes.
  315. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Cool. I was a little disappointed when the first RHIC power-up didn't result in the entire universe being turned into strange matter. At least I didn't notice any change.

  316. Re:Yet another milestone in my Earth Destruction P by J'raxis · · Score: 1
    The Wikipedia entry has the equation, and says:
    A black hole of one solar mass has a temperature of only 60 nanokelvins; in fact, such a black hole would absorb far more cosmic microwave background radiation than it emits. A black hole of 4.5 × 10^22 kg (about the mass of the Moon) would be in equilibrium at 2.7 kelvins, absorbing as much radiation as it emits. Yet smaller primordial black holes would emit more than they absorb, and thereby lose mass.
    If you wanted to establish an equilibrium at 300 Kelvin ("room temperature") you'd need about 4.08 × 10^20 kg. That's about one hundredth of the mass of the moon.
  317. Re:Yet another milestone in my Earth Destruction P by Glock27 · · Score: 1
    Doesn't this in some way violate thermodynamics?

    No, the mass of the black hole is simply being converted to energy ala e=mc^2.

    You're turning useless energy removed from the system via entropy into useful energy you can work with again.

    The net entropy is constant, and one thing that Hawking verified is that no information about what went into the black hole is being returned to the outside universe.

    Given the correctly chosen size for a black hole at the core, you can pick one that produces energy at the same rate as the core feeds it, it heats the core, and you make sure to convert that energy to matter sufficiently to keep it fed.

    Yes, though this would be a quite tricky process. Black holes in this size range would be very small, so they can't suck in matter at that high a rate. Further, since things go exponentially faster and more energetically as the object evaporates, it would be a dicey situation. I don't think I'd want to be near such a reactor. ;-)

    IIRC, the final explosion is "the equivalent of a million H-bombs or, depending on a not well known constant, a million times bigger than that.". Nice planet-destroyer weapon for the science fiction buffs. :-)

    By the way, the existence of small black holes is quite uncertain, since the only way they could have formed is during the Big Bang. Eventually (many, many times the amount of time the universe will have shining stars) even large black holes should evaporate to these small sizes, but it's unlikely any observers will be around (depending on your religious views, of course;).

    What obvious physical limitation am I missing?

    None. Read "A Brief History of Time" it covers the topic well. In a nutshell, after a *very* long time, Hawking theorizes the open, ever-expanding universe reaches a state of heat death with no matter anywhere and the same temperature everywhere.

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    Galileo: "The Earth revolves around the Sun!"
    Score: -1 100% Flamebait
  318. A black hole at the old make-out spot by GrievousAngel · · Score: 1

    Well now there's a goddamn black hole where I used to drink beer!

    My graduate studies were in nuclear physics, and I spent several summers back during the 80's at Long Island's Brookhaven National Laboratory. Back then, the Relativistic Heavy Ion Collider didn't exist yet. All there was at the site were some enormous empty tunnels, dug for a different accelerator project that never got off the ground. The tunnels stood as a monument to fiscal and bureaucratic incompetence and government boondoggles... but they looked really cool and spooky at night.

    In short, it was the big make-out spot in those days. Or a place for drinking beer, if you were a physics geek with no girlfriend. I have many fond memories of hanging out by those huge empty holes on a summer night with my friends, watching the deer watching us, curiously from the tree line, and getting quietly drunk.

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    "Extremism in defense of liberty is more fun."
  319. Only a few (million) kilometers... by benhocking · · Score: 1
    If you're only a few kilometers away from the center of gravity of something with the Sun's mass, *then* the gravity will be really strong.

    Actually, even at a million kilometers away (or approximately 1 solar radius) from the sun's center, the sun's gravity is still approximately 28 g's. I'd call that really strong.

    Just my $0.02. :)

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    Ben Hocking
    Need a professional organizer?
  320. Re:Yet another milestone in my Earth Destruction P by stonecypher · · Score: 1

    Common misconception. Hawking demonstrated that with great pressure (such as are found during the big bang and in the aftermath of large stellar collisions) objects which would not otherwise collapse would then collapse. These are called "quantuum black holes" and "quantuum neutron stars," and though there is a point at which they'll bleed away due to hawking radiation, there are also stable sizes which are smaller than would otherwise collapse. A neutron star the size of Sol would be stable, provided a moderate food source.

    There are people which believe that the Tuskunga meteor strike was actually a black hole, and there are simulations of the gravity effect which are reasonably close to what actually happened, with the flattening and the safe part and the curious burn marks and the OY LEVEN, GOOD GUYVEN IT'S ON MY SHOE.

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    StoneCypher is Full of BS
  321. It's funny until... by alleycat0 · · Score: 1

    ...someone loses an eye!

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    I am not a number - I am a free man!
  322. Re:Can someone please explain... by cazzazullu · · Score: 1

    You need massive amounts of matter/energy piled together to produce a natural black hole, one that collapses under it's own weight and becomes a singularity. You can however "force" matter to become so close that the local density is big enough to become singular. Smashing them together at incredible speeds seems to be a way to accomplish this.
    Compare this with a hydrogen bomb: You need a lot of hydrogen on a pile to achieve fusion (the weight of our sun seems to do) but if you put a few grams inside the core of an atomic bomb you get some sort of forced fusion, although not stable and very short.

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    int main(void) {while(1) fork(); return 0;}
  323. Re:Can someone please explain... by Anonymous Coward · · Score: 0

    See this explanation to your first question.

    As to gravitons, Einstein showed that classically, gravity can be described by the curvature of spacetime. However, gravity must be quantum in nature, like all the other interactions. That may mean that it's described by graviton particles, or quantum geometry, or strings, or something else. Regardless, even if it's described by some quantum version of spacetime curvature, it will have to behave at least approximately like graviton particles propagating around, even if that isn't the exact fundamental description.

  324. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    Rubyflame is correct. A neutron star is always much denser than a regular star, because (by definition) its matter is compressed to nuclear densities. (If you meant a neutron star with the mass of the Sun, that would be on the order of 10 kilometers in size.) Your response about quantum black holes is a non-sequitur; it has nothing to do with the fact that neutron stars are very dense.

  325. Re:Yet another milestone in my Earth Destruction P by Verteiron · · Score: 1

    Earth was also destroyed by a mini black hole in Dan Simmon's "Hyperion" series.

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    End of lesson. You may press the button.
  326. picoCartmans? by game+kid · · Score: 1

    4.3x10^-2 picoCartmans So that means they have the face of Cartman, the width of Calista Flockhart and the vocal cords of Kenny?

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    You can hold down the "B" button for continuous firing.
  327. No, NO. by game+kid · · Score: 1

    She (her head, at least) was forever immortalized long ago. This time they just cloned Rikishi.

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    You can hold down the "B" button for continuous firing.
  328. Re:Yet another milestone in my Earth Destruction P by Anonymous Coward · · Score: 0

    If French Fries= Freedom Fries and French Toast = Freedom Toast I want to leave the US and go live in Freedom

    How's that working out for you? Any closer to realizing this utopian goal of European fantasticality? Or is reality still biting your ass?

    I bet you can't go now because it's just not convenient... I understand. Having the courage of your convictions is extremely Bushlike.

  329. I'm Al Gore by Anonymous Coward · · Score: 0

    And I find this sequence of events likely

  330. Re:Yet another milestone in my Earth Destruction P by MindStalker · · Score: 1

    You sir are a twit :) The point is that the poster meant to say mass of sol but he said density of sol. The followup was simply pointing out his error.

  331. you are the wind beneath my wings! by Anonymous Coward · · Score: 0

    beautiful riposte. Truly you are channeling Twain.