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Old 06-01-2009   #49 (permalink)
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Turtle
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Arrow Re: Lightning

Something new in the lightning world this week. More photos and article at SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

Quote:
Originally Posted by Spaceweather.com
June 1, 2009
Look closely where the lightning meets the water. Tiny bolts appear to be dancing around the impact site.

"Those are called 'upward streamers,'" says lightning expert Richard Blakeslee of the NASA Marshall Space Flight Center. "In a typical cloud-to-ground lightning strike, as the leader approaches the ground, the large electric field at the leader tip induces these upward propagating streamers. The first one that connects to the downward propagating leader initiates the bright return stroke that we see with our eye. Upward streamers are often observed on photographs of lightning hitting the ground."
Now we know they can be seen when lightning hits the water, too. ...


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