18 Jun
2002
18 Jun
'02
1:11 a.m.
At 07:02 PM 6/17/02 -0400, you wrote:
Wouldn't switching it on and off be many times more
efficient at producing a time-varying field? :-) .
carlos.
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Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org
I left it on
for a good 30 to 45 seconds (the label on
the side of it says 1 minute on 20 minutes off, so I didn't...
The time I remember seeing one used:
Move it like an iron, back and forth, back and forth.
In general, moving magnetic fields are more
influential than stationary ones.
John A.