On Wed, 30 Jul 2003, Wayne Rooney wrote:
> Lightning does raise the ground potential at the instant of strike, and is
> something to be aware of. There are cases of cows being electrocuted
> because lightning struck nearby and the difference in potential between the
> ground at their front legs and the ground at their back legs was enough to
> electrocute them.
I remember being caught in a storm and every time there was a lightning
bolt (not to ground in this case), my hair stood on end. There must have
been a voltage gradient of 1-2000 volts per metre.
Phil.
--
Philip Charles; 39a Paterson Street, Abbotsford, Dunedin, New Zealand
+64 3 488 2818 Fax +64 3 488 2875 Mobile 025 267 9420
philipc@copyleft.co.nz - preferred. philipc@debian.org
I sell GNU/Linux & GNU/Hurd CDs. See http://www.copyleft.co.nz
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