Gy Fysik 2 Heureka Kap 13 Akustik Ultraljud o infraljud
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Video source record: https://commons.wikimedia.org/wiki/File:Gy%20Fysik%202%20Heureka%20Kap%2013%20Akustik%20Ultraljud%20o%20infraljud.webm
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Summary
| Date | 2014-08-25 |
|---|---|
| Source | commons.wikimedia.org |
| Author | https://www.youtube.com/user/fbjpJG-sYNvHONJhvf5Itg |
Licensing
CC BY
Attribution: https://www.youtube.com/user/fbjpJG-sYNvHONJhvf5Itg, 2014-08-25