Oops! Somehow that link got deleted.
It's there now in the Benham's Disk snack under the Materials section.
Thanks for the head's up.
3601 Lyon Street
San Francisco, CA 94123-1099
On Mon, 24 Feb 2003 Swilllin@aol.com wrote:
> where would i find the pattern disk for the benham's disk expieriment
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