Message-Id: <3.0.32.19970326084859.006c2774@icefog.polarnet.com>
Date: Wed, 26 Mar 1997 08:49:09 -0900
To: pinhole@exploratorium.edu
From: "J. Lahr" <jlahr@polarnet.com>
Subject: Magnets
On the topic of "ceramic" magnets, Bill Beaty lists a number of demos
that can be done with "supermagnets" on
http://www.eskimo.com/~billb/neodemo.txt
He recently mentioned the following page that includes a frog suspended
in a magnetic field, without any harm to the frog:
http://www-hfml.sci.kun.nl/hfml/levitate.html
Bill's safety warning seems well worth repeating here:
<bigger>*********************************************************************
"WARNING: if you mess with TWO neodymium magnets, you are bound to
pinch your fingers if you let them come together. This REALLY
HURTS, it's like pliers. Also, you should wear safety glasses,
since when two NIB magnets slam together, they tend to launch
tiny chips at high velocities.
I've had 3/4" magnets fall together accidentally and be
completely shattered. The things are brittle!
NOT FOR UNSUPERVISED CHILDREN!"
*********************************************************************
</bigger>
JCLahr
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