Electrical Telegraphy, Electric Bells and Telephones
電信 電鈴 電話
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Synopsis
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.
Details
- Yasuji Murata
- April 30, 1931
- Released
- Japan
- 11m
Where to watch
No known streaming options in United States.
