Re: lightning rods

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1 total messages Started by Charles Toth Mon, 26 Sep 1994 23:16

#1081

Author: Charles Toth
Date: Mon, 26 Sep 1994 23:16

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        A simple experiment in the classroom with a van de Graf shows how
lightning rods work.

        Start your machine.  Point a well grounded sharp object at the sphere
and the periodic discharges to the grounding sphere cease.  Remove the pointed
object and the discharges resume.

        People who have experience with lightning rods and some who write
magazine articles about them are not always good sources of information
about lighting discharges and control (!!??  ;-)).  I cite an article in
*Power Yacht* or some similar title a few years back.  Oops -- lost the
citation.  Also the article in World Book Encyclopedia of 1978 is weak.

        You pays yer money and you takes yer chances.
Charlie Toth

See the AAPT Electrostatics Workshop by Morse, Toth and LeBrecque as well as
other works by Lebrecque

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