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aus.motorcycles |
In article <i_9Ch.871$8U4....@news-server.bigpond.net.au>, > >> Watch out for lightning strike! > >> -- > >> Andrew > >> (Make a lightning rod by gluing a blunt ferrous rod to the top of the > > A _blunt_ rod? Have you been taking physics lessons from Hamish again? > > big (at least I'm not alone, it does say "It is commonly believed, big --
Andrew McKenna <NOcmorSPAM3...@NObigpond.SPAMnet.au> wrote:
> Iain Chalmers wrote: <snip>
> >> Cheers
> >> motorcycle helmet, attaching a 4 metre length of copper strap to the rod
> >> with copper wire, and attaching a suitable boat anchor to the free end
> >> of the strap to make sure it stays earthed - any Windows 98 computer
> >> would do.)
> The results of this study suggest that moderately blunt metal rods OK, I'm wrong (again)...
> (with tip heighttotip radius of curvature ratios of about 680:1) are
> better lightning strike receptors than are sharper rods or very blunt
> ones.
erroneously, that a rod ending in a sharp point at the peak is the
best"... )
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