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Keviin wrote on 2010-04-21 00:44
Iceland's Eyjafjallajokull Volcano produces lightning?!
In Photos: Lightning electrifies volcano ash - Yahoo! News
Scientists have long known the plumes that shoot from the mouths of erupting volcanoes can produce sheaths of lightning. While lightning is typically associated with thunderstorms, hurricanes and other severe weather, the roiling debris clouds of volcanoes can also produce them.
The lighting in volcanic plumes is connected to the rotation that these plumes undergo, something like a tornado. As a plume rotates, it can spawn waterspouts or dust devils, which gather together the electric charges in the plume to form a sheath of lightning.
Scientists don't know exactly how lightning is created in an ash cloud, however. But they expect it's a result of particles rubbing together, generating friction and electrical charges.
The volcano lightning may be generated in a similar way to that in normal thunderstorms in a process scientists have dubbed "dirty thunderstorms." In a normal thunderstorm, ice particles rub together to generate an electrical charge; in the case of a volcano, rock fragments, ash and ice may all rub together to produce this charge.
When particles become charged during an eruption isn't known though, and scientists are just beginning to get a good look inside the plumes that generate the lightning - an unfriendly environment to be sure.
looks apocalyptically epic...
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Kurezan wrote on 2010-04-21 09:01
Wow.. that volcano is rather scary.
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Sleeperdial wrote on 2010-04-21 22:18
Volcanoes.......fun, till lightning pulls a nasty reach around.
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Athde wrote on 2010-04-21 22:21
Uh-oh.
[Image: http://www.indypendent.org/wp-content/photos/small1_1.jpg]
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Laconicus wrote on 2010-04-21 22:25
This screams 2012.
:worry:
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Piko wrote on 2010-04-21 22:29
My school had German Exchange students who were supposed to go home this week, but had to stay here longer because of that.
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Taycat wrote on 2010-04-22 00:34
[Image: http://s1.hubimg.com/u/785972_f520.jpg]
This is next.
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BobYoMeowMeow wrote on 2010-04-24 00:17
the internet is the end of the world?
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Time wrote on 2010-04-24 00:20
Quote from BobYoMeowMeow;16807:
the internet is the end of the world?
looks aroud, Yeah pretty much.
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Chockeh wrote on 2010-04-24 04:08
Quote from Xiyamae;14483:
[Image: http://s1.hubimg.com/u/785972_f520.jpg]
This is next.
Yep, that's 2012.
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Drago wrote on 2010-04-26 13:18
lol the cano learned thunder and that name is tooo looooooooooong
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NewbieNub wrote on 2010-04-26 13:49
I still have two years to live before beating zombies to death with my own bare hands?
Good to know that.
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VitaminC wrote on 2010-04-26 17:18
Quote from Drago;19236:
lol the cano learned thunder and that name is tooo looooooooooong
Yeah didn't ya get the camera feed on that one?
[Image: http://s3.amazonaws.com/theoatmeal-img/comics/volcano_name/1.png]
[Image: http://s3.amazonaws.com/theoatmeal-img/comics/volcano_name/2.png]
Huh...didnt turn out exactly as planned.
Still though. Seriously I'm wondering whats going on beneath the earths crust. The natural disasters within the past few years are odd.
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Hiccup wrote on 2010-04-26 20:48
[Image: http://d.yimg.com/a/p/rids/20100422/i/ra3291868582.jpg?x=400&y=261&q=85&sig=W9qFr0ykm8G3TtvQy7ZTsg--]
I want this in Mabi D: (not the volcano go spew spew we haz that.... I want red lightning er... thunder)
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Phunkie wrote on 2010-04-27 04:06
Holy crap, that is hot!
Dirty lightning, baby!