On Sun, 20 Aug 2006, Richard King wrote:
Hi,
IIRC from A-level physics, a spark jumps 1 centimeter per
100kV in dry air, so a cloud-to-ground lightning bolt must be
zillions of volts! (recently concerned - sailing in variable
weather last week!).
So how do you explain the tree that explodes from a lighting
hit? :) It must be a Gazillion volts ! <vbg>
As a matter of fact a lighting strike last week here in Tucson
went *THROUGH* the roof of a car ! The news footage showed the
~1 inch hole in the roof of the auto ! **NEVER** underestimate
the ***POWER*** of lighting !
--
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