Sound waves: condensed waves formed by clapper hitting bell,rarefied waves during silence between strikes. Engraving from ''Natural Philosophy'' by A. Ganot,London,1878 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / UIG / Universal History Archive |
Bildgröße: | 6048 px × 2890 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |