Tin can telephone being used by a boy. Sound waves are being transmitted along the string to the can,which is being held to the boy's ear. This apparatus can be used to demonstrate the principles of sound waves and their transmission | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Curtis, Kevin |
Bildgröße: | 4050 px × 4551 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |