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Date: | Thu, 2 Aug 2007 09:02:08 -0700 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
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>Max Scharfenberger, Wed, 1 Aug 2007, wrote
>I am looking for a replacement material for iron filings.
In a planetarium show we created about the Sun (Our Very Own Star;
PASS volume 14; http://lhs.berkeley.edu/pass/), we used #4 lock
washers in place of iron filings. Worked great. Much cleaner.
---Alan Gould
Director, LHS Holt Planetarium
University of California
Lawrence Hall of Science #5200
Centennial Drive @ Grizzly Peak Blvd
Berkeley, CA 94720-5200
voice: 510-643-5082
e-mail: [log in to unmask]
web: http://lhs.berkeley.edu/sii
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