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Trama
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.
Dettagli
- 村田安司
- 30 aprile 1931
- Released
- Japan
- 11 min
Dove guardarlo
Nessuna offerta di streaming nota (paese: Italia).











