Re: just wonderin

Posted by KEB on January 02, 2007 at 20:10:05 from (72.19.170.5):

In Reply to: just wonderin posted by coflyboy on January 02, 2007 at 12:16:31:

The sound you hear is the rapid expansion of the ionized air in the arc channel as it heats up from the current flow. Thunder on a miniature scale.

The heat produced is also what ignites a fuel/air mixture in an engine's combustion chamber. As an interesting side note, most of the damage caused by a lightning strike is a result of the large current flow through the affected material, not the hot channel itself.

Keith

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