Re: Tesla coils & artistic glass
Subject: Re: Tesla coils & artistic glass
From: Bruce Gold <Bruce.Gold-at-m.cc.utah.edu>
Date: Mon, 19 Sep 94 02:13:18 MDT
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On Thu, 15 Sep 1994, Buster Stevens wrote:
> I tried to find out ... the electrical size of the fields, and the
> frequency that Tesla must have used to generate such a force to light
> up a bank of light bulbs, miles away from the source.
> I pursued the notion of what frequency and voltage is necessary to
> transmit mega power thru the air. The voltage can be guessed at because he
> produced witnessed lightning over a known distance. It still remains a
> mystery to me at what frequency and the antenna dimensions to produce the
> proper magnetic or electical fields for transmission and reception.
> I feel one only needs to experiment to obtain empirical data
> adequated to construct practical equipment for commercial applications.
Antenna design, electromagnetic field shape, and the relationship of
frequency and wavelength are, collectively, a consumingly interesting
subject. The ARRL publishes at least two quite wonderful books with good
introductory and practical information on the subject: "The Radio
Amateur's Handbook" and "The ARRL Antenna Book". In addition, there is a
group of very nice people who have been experimenting with antenna design
for many decades: ham radio operators.
Because of Mr. Stevens' high interest in this field and for many other
beneficial reasons, I'd suggest becoming a radio amateur as a delightful
and productive activity to lead into, and follow up on, second-quarter
college physics, which deals with electromagnetics.
I applaud Mr. Stevens' interest in electromagnetics and in the study of
harmonic motion, which relates to frequency and wavelength.
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