Quote:
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Originally Posted by orbsycli
Doesn't some lightning start from the ground, and reaches into the sky?
Discovery channel showed me in slow motion...
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Why yes it does.

Well, so to speak. Here's a snippet from the
Wicky article on lightning:
Quote:
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Originally Posted by Wicky
...The region of high current propagates back up the positive stepped leader into the cloud with a "return stroke" that is the most luminous part of the lightning discharge.
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On the iron-rods-in-sand-to-make-glass-objects-when-lightning-strikes, if I were to not try it at home I would not weld an iron teapot to the bottom of the rod and bury it in an attempt to influence the shape of the resulting fulgurite.
