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Your Safer Source for Science
Since 1977
Your Safer Source for Science
Since 1977
| Address | P.O. Box 219 Batavia, IL 60510 |
| Phone | 800-452-1261 |
| Fax | 866-452-1436 |
| flinn@flinnsci.com |
DC1939
Price: FREE
Demonstrate how a clock can be powered by two potatoes.