Staff of the Teacher Institute here at the Exploratorium came up with the
The snackbook "The Magic Wand - and Other Experiments on Light and Color"
contains this Snack. You can check your local library for a copy or
checkout our store at http://www.exploratoriumstore.com/
3601 Lyon Street
San Francisco, CA 94123-1099
On Sun, 12 Jan 2003 Nilyjake@aol.com wrote:
> I need to know who came up with the idea colored shadows. And did he make any
> books that have that experiment in it.
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