TT:
----- Original Message -----
From: "Jim Lux" <jimlux@earthlink.net>
To: "Jim Brown" <jim@audiosystemsgroup.com>; <towertalk@contesting.com>
Sent: Thursday, February 03, 2005 8:44 AM
Subject: Re: [TowerTalk] iron pipe "lightning chokes"
>
> ----- Original Message -----
> From: "Jim Brown" <jim@audiosystemsgroup.com>
> To: <towertalk@contesting.com>
> Sent: Wednesday, February 02, 2005 10:23 PM
> Subject: Re: [TowerTalk] iron pipe "lightning chokes"
>
>
> > On Wed, 2 Feb 2005 22:26:42 -0500, Jim Jarvis wrote:
> >
>
> I think the problem is very similar to the classic lab demo of eddy
current
> braking. You have a conductive tube and drop a magnet through it. The
> magnet takes much longer to fall through the tube than it would the
> equivalent distance in free air, so energy is being dissipated as heat in
> the tube.
>
This phenomenon illustrates Lenz's Law:
http://www.launc.tased.edu.au/online/sciences/physics/Lenz%27s.html . FWIW.
73 de
Gene Smar AD3F
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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