Re: Standind wave in a magnet

Bill Perry ( wperry3092@worldnet.att.net )
Thu, 16 Apr 1998 00:05:58 -1000

thanks for the compliment Jerry, I have been trying to learn as much as
I can about Tesla, becuase quirky as he may have been, he was probably
the most profound genius of our time, and he was always a proponent of
the importance of resonance in its many forms. I share this view, though
I am probably Tesla-biased. Have you heard of the amazing things he did
with electromechanical oscillators? He nearly tore a building to the
ground with nothing more than a mere pocket-sized oscillator. It is
incredible what can be done.
One evening I was using my computer and on a whim, wrapped my electret
PC mic in saran wrap, filled a glass of water, stuck the mic in the
water and sat the glass in front of my sound blaster speaker (the one
which worked off the mic), The speaker was at half-volume and started
the most beautiful sounding feedback signal I'd ever heard. What I
noticed to be cool was when I turned the volume down, the tone went
away. But, after 3-4 seconds, it came right back! I believe this was due
to the fact that the frequency I heard was the resonance of the glass of
water, and as we all know resonant waves build on each one before
itself. I was forced to abort (hurt wife's ears), and besides my saran
wrap seal was not as good as i'd thought. it flooded out and was totally
non-operational for the next three days. Haven't bothered to try it
again (computer is now plugged into my RCA stereo system, so I should
get more volume!)
BillP