Electrical Telegraphy, Electric Bells and Telephones

Electrical Telegraphy, Electric Bells and Telephones

2.0 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.

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COUNTRY & LANGUAGE

Production Countries:

Japan

Spoken Languages:

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