Electrical Telegraphy, Electric Bells and Telephones
1931 · 11 min · Animation
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.
- Director
- Yasuji Murata
- Released
- April 30, 1931
- Language
- Japanese
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Streaming data from JustWatch, via TMDB.