Date: Fri, 26 Sep 2003 14:01:32 -0500

Author: "Matt Lowry"

Subject: RE: Awesome EM induction demo!

Post:

I use a flat 2" diam x 0.5" thick neodymium magnet from Wonder magnet:

http://www.wondermagnets.com/cgi-bin/edatcat/WMSstore.pl?user_action=detail&catalogno=0060

It's powerful and fits well in your hand, so you can put the proper
spin on it for the magnet drop.

Cheers - Matt

>>> cary@arborsci.com 9/26/2003 12:55:44 PM >>>
Wolfgang is right. I believe the phrase "Most powerful magnet..." was
used in reference to Nd magnets in general. The "Giant Neo" that
David
has is 7/8" x 1", and it sounds like people doing this demo are using
a
flatter disc shape. Right?

Cary Busby
Arbor Scientific
From sshelley@haverford.edu Fri Sep 26 12:32:41 2003