File:Tuning fork on carbon black.jpg
From Infogalactic: the planetary knowledge core
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Summary
A needle on a tuning fork carved these figures on a glass plate covered with carbon black. As the plate is moved from left to right, the sinewave-shaped swinging motion appears.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:58, 12 January 2017 | | 1,819 × 1,184 (712 KB) | 127.0.0.1 (talk) | A needle on a tuning fork carved these figures on a glass plate covered with carbon black. As the plate is moved from left to right, the sinewave-shaped swinging motion appears. |
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