Re: magnetic pendulums

From: On-line Snack discussion (snaktalk)
Date: Wed Mar 08 2000 - 18:01:22 PST

Cow magnets are strong, cylindrical magnets with rounded ends. These
magnets are fed to cows so that any iron material eaten by
the cow (nails, bits of wire, and so on) will remain in the stomach and
not pass through the digestive tract. These are excellent
magnets for many science activities; you can probably find them at a
local animal feed store. Another place to try is a livestock supply
company, or a Slaughterhouse, if you can find one.

Nina Thayer
Snacktalk Moderator
> what is a cow magnet and where are places to get it besides a feed store?
> Can it be substituted with another kind?

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