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UM-Bot
user posted image r“People have been pondering ball lightning for a couple of centuries,” says James Brian Mitchell, a scientist the University of Rennes in France. Mitchell says that different theories of how it forms, and why it burns in air, have been considered, but until now there were no experimental indications of what might be happening as part of the ball lightning phenomenon. Now, working with fellow Rennes scientist LeGarrec, as well as Dikhtyar and Jerby from Tel Aviv University and Sztucki and Narayanan at the European Synchrotron Radiation Facility in Grenoble, France, Mitchell can prove that nanoparticles likely exist in ball lightning. The results of the work by Mitchell and his colleagues can be found in Physical Review Letters: “Evidence for Nanoparticles in Microwave-Generated Fireballs Observed by Synchrotron X-Ray Scattering.” “A group in New Zealand came up with this idea of ‘dusty plasma,’” Mitchell tells PhysOrg.com. “They thought that nanoparticles burning in air could cause ball lightning to remain for seconds, rather than disappearing after milliseconds. This was an attractive model.” But the model couldn’t be proved without detecting the nanoparticles. Mitchell says that he saw a paper by Jerby describing the creation of a fireball in controlled conditions. “These fireballs floated in air,” Mitchell explains. “They resemble ball lightning.” This provided an opportunity to study whether or not nanoparticles were likely to exist in this natural phenomenon, shedding light on a scientific mystery.

The work was done at the European Synchrotron Radiation Facility in Grenoble. The facility uses an x-ray that is 10 billion times more powerful than a typical x-ray found in a hospital. Additionally, Mitchell explains, the accelerator for the synchrotron is more than a kilometer in circumference: “We can get measurements here that we couldn’t get in many other places.” “We passed an x-ray beam through the fireball we made, and saw that it was scattered.

linked-image View: Full Article | Source: PhysOrg.com
Bear's Quest
I never understood ball lightning, never saw it and never thought of it much; other than a cricket or crow getting fried in the air after lightning strike.
Katana357
What amazes me to this day is the fact that the scientific community accepts the existence of ball lightning at all. I am not saying that ball lightning does not exist. What concerns me is the hypocritical nature of the scientific community. They have never been able to create ball lightning in a laboratory environment. Photo's of the phenomenon are pictures of balls of light, nothing more. In addition there has never been a case where definitive scientific evidence was produced after a ball lightning sighting. This is the same community that says "bring me a body" or "I'll believe it when you bring me physical evidence!" and yet here they ask none of these things. They simply take it on "faith!" How convenient.

Katana357 angry.gif
Truffles
My dad used to tell me about these. They were quite frequent in Wales. He said they would come through the wall into the living room for example and just sit there. I asked him what happened if he touched one, he said he never thought of it and never did.
Oen Anderson
I had a bad experience with ball lightning one time. I has shot in the crotch with a taser. For a brief second I knew it existed and then it shorted out.
Bear's Quest
QUOTE (Oen Anderson @ Feb 28 2008, 01:21 AM) *
I had a bad experience with ball lightning one time. I has shot in the crotch with a taser. For a brief second I knew it existed and then it shorted out.


w00t.gif lmao 'shorted out!' -Lucky you wetted yourself before lightning struck twice!
Truffles
QUOTE (Oen Anderson @ Feb 27 2008, 08:21 PM) *
I had a bad experience with ball lightning one time. I has shot in the crotch with a taser. For a brief second I knew it existed and then it shorted out.


Great balls of fire!
iSeeDeadPpl!
maybe their a type of ufo
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