Slashdot Mirror


Ball Lightning Created In the Lab

EWAdams writes to point us to a New Scientist report that the mysterious phenomenon of ball lighting has now been created in a Brazilian research lab. The phenomenon has long been reported anecdotally but never explained or understood. Scientists have devised numerous possible explanations, including mini black holes left over from the Big Bang, but have had little success in producing working examples. From the article: "A more down-to-earth theory... is that ball lightning forms when lightning strikes soil, turning any silica in the soil into pure silicon vapor. As the vapor cools, the silicon condenses into a floating aerosol bound into a ball by charges that gather on its surface, and it glows with the heat of silicon recombining with oxygen. To test this idea, a [Brazilian] team... took wafers of silicon just 350 micrometers thick, placed them between two electrodes and zapped them with currents of up to 140 amps. Then... they moved the electrodes slightly apart, creating an electrical arc that vaporised the silicon. The arc spat out glowing fragments of silicon but also, sometimes, luminous orbs the size of ping-pong balls that persisted for up to 8 seconds." Here is a movie of the phenomenon.

18 of 190 comments (clear)

  1. Re:Obligatory statement by anagama · · Score: 4, Funny

    Don't worry, this is ball lightening, not ball lighting.

    --
    What changed under Obama? Nothing Good
  2. Re:Having seen 'ball lightning'... by noigmn · · Score: 1, Funny

    You may not have witnessed ball lightning. Many species of extra terrestrial life have been said to look like jellyfish. An alien encounter seems far more likely by my reasoning.

    --
    Slashdot is powered by your submission.
  3. I've seen ball lightening by Centurix · · Score: 2, Funny

    I recommend not using nylon sheets, an hours worth of charge really hurts.

    --
    Task Mangler
  4. Re:Bigger! Like a rabbit! by Dance_Dance_Karnov · · Score: 2, Funny

    But could Koreans eat them?

  5. Re:Slashdotted Video? by $RANDOMLUSER · · Score: 4, Funny

    I think there's some ball lightning coming out of that server.

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  6. Re:Bigger! Like a rabbit! by skeldoy · · Score: 1, Funny

    The Koreans could worship them! The bouncing rabbit-size balls could help Men Tah Lee iLL (or whats his name) run the country!

  7. Re:Hmm? Something is missing by WaZiX · · Score: 2, Funny

    The whole truth? Man you've been watching X-files too much!

    Try "explanation".

  8. inventing things out of order by Tumbleweed · · Score: 4, Funny

    Magic Missile should've been invented first! It's gonna take forever for me to get enough experience to get this...

    1. Re:inventing things out of order by Barny · · Score: 4, Funny

      What amazed me was that they cast it without using any red mana!

      Bloody type one decks :/

      --
      ...
      /me sighs
  9. Re:Slashdotted Video? by marcello_dl · · Score: 3, Funny

    > I think there's some ball lightning coming out of that server.

    Wouldn't it be a great way to signal excessive load on a server? Except that then microsoft would embrace and extend the idea with ballMer lightning, which also throws chairs at you if it spots license irregularities.

    --
    ---- MISSING MISCELLANEOUS DATA SEGMENT --- [sigdash] trolololol
  10. Re:Slashdotted Video? by PrinceAshitaka · · Score: 4, Funny

    IS the scientist in this video wearing flip flops with this ball lightning scurrying around the floor by hiw feet? Is it just me or is this not a good idea. I want to see the blooper reel of this video.

    --
    quis custodiet ipsos custodes
  11. Re:Slashdotted Video? by $RANDOMLUSER · · Score: 4, Funny

    Ooooh Balmer Lightning - it bounces up and down, shouting "Developers! Developers!"

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
  12. Re:Fascinating by ari+wins · · Score: 4, Funny

    So, wait, they've recreated a 6/1 creature with Trample, that takes one red mana to cast, and is placed in the graveyard after this turn is completed?

    Just don't tell me when they create a Lord of the Pit, the U.S. has a hard enough time preserving marshland's as it is.

    --
    Don't worry if you're a kleptomaniac, you can always take something for it.
  13. The Boxen by kfg · · Score: 5, Funny

    I am just a Sun Blade and my story's seldom told
    I have squandered my existence on some packets full of numbers such are data files
    All porn and jest
    Still the NAT hears what it wants to hear
    and access denies the rest
    Oh yes, access denies the rest

    In the NOC there stands a boxen
    and a server by its trade
    and it carries the reminders
    of every luser guest that logged on
    and downloaded till it cried out
    in its full Slashdotted shame
    "My CPU is burning, but the hard drive still remains"
    Yes, the data still remains . . .

    Dee oh Ees *kissssssh*
    Dee oh, Dee oh, Dee oh Ees
    Dee oh Ees *kissssssh*
    Dee oh, Dee oh, Dee oh, Dee oh, Dee oh Ees

    KFG

  14. Re:Slashdotted Video? by Cousin+Scuzzy · · Score: 5, Funny
    A friend of mine was swimming in a lake in the eighties and some ball lightening appeared.

    That's not ball lightening, that's just shrinkage. Happens to men when they're swimming all the time. Usually not when the water's in the eighties though.

    It dissipated shortly after he got out

    Yeah, that's typical too.
  15. The next obvious step by Quiet_Desperation · · Score: 2, Funny

    A ball lightning gun!

  16. Interesting conversion by Weaselmancer · · Score: 2, Funny

    True. An interesting side effect of all of this is that we now know that 3 red mana = 140 amps.

    --
    Weaselmancer
    rediculous.
  17. Re:Flipflops?! by kayditty · · Score: 2, Funny

    how many is a brazilian?