Re: Pinhole Digest #803 - 12/28/01

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From: Jim Hill (jhill@vom.com)
Date: Sun Dec 30 2001 - 12:32:46 PST 

Message-Id: <v04220801b85529c32c99@[63.145.221.196]>
Date: Sun, 30 Dec 2001 12:32:46 -0800
From: Jim Hill <jhill@vom.com>
Subject: Re: Pinhole Digest #803 - 12/28/01

Moon Phase Demo
Get a 4 inch styrofoam ball and put a 2 ft. stick into it. The ball
represents the moon. Turn out the classroom lights and shine a beam
of light on the "moon" As you rotate your body with the "moon" held
at arms length, you can see the phases of the moon.
Jim

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