Electrical Telegraphy, Electric Bells and Telephones
- Originální název: 電信 電鈴 電話
- Žánr: Animovaný
- Režie: Yasuji Murata
When copper wire is wrapped around an iron rod and connected to a battery, it becomes an electromagnet. A science teaching material movie that explains the principle and structure of electric bells and telephones by applying the principle of an electromagnet through a fusion of live action and animation.
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