On Jun 3, 2008, at 8:12 PM, Russell Standish wrote: > On Tue, Jun 03, 2008 at 04:09:55PM -0600, Don Begley wrote: >>> >>> Probably more a matter of the sand being dry enough for the barbed >>> wire to be electrically decoupled from you. I've seen similar EMF >>> coupling effects in ordinary household 240V power, if things are >>> sufficiently well earthed. >>> >>> Doesn't mean it injurious to health, however. The normal impedance >>> of a human >>> being is 5-6 orders of magnitude higher than barbed wire! >> >> >> Definitely, the wire was earthed. FWIW, however, the engineer said >> the >> energy came from the power line and sensible only in those summer. >> >> -d- > > Due to gremlins in the system, I meant to say "not sufficently well > earthed". I thought this might be the case if the sand was > sufficiently dry, then the barbed wire may be a floating conductor. > > Ah well...
I'm not sophisticated enough to catch the discrepancy. The wire was 'earthed' in the sense that it was mostly buried. The sand was probably quite dry given the local climate. -d- ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
