THE HARVARD PREPARATORY PHYSICS.
| Autor: | Parmenter, C. W. |
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| Předmět: | |
| Zdroj: | Journal of Education; 9/19/1889, Vol. 30 Issue 11, p183-183, 1/2p |
| Abstrakt: | The article offers step-by-step instructions for calibrating the pitch of a tuning fork. |
| Databáze: | Complementary Index |
| Externí odkaz: |
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