Denshin Denrei Denwa
Electrical Telegraphy, Electric Bells and Telephones
- Episodes: 1
- Airing: from 1931-01-01
- Aired: No
- PEGI: G - All Ages
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.