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Re: falling magnet demo

Hallo Roger!
On Mon, 10 Mar 1997 08:12:12 -0600, you wrote to
"phys-l@atlantis.cc.uwf.edu" about "Re: falling magnet demo" :

nested copper pipes about 2.5 m long. Our magnets are "cattle" magnets =
about
3" long purchased from a local farm supply store. They are small =
cylindrical

What are those originally used for?
tnx
Bye, bye
Guntbert
-------------------------------------------------
Guntbert Reiter, Graz, Austria
e-mail : guntbert@cut.big.ac.at