Electrical Telegraphy, Electric Bells and Telephones
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.
Electrical Telegraphy, Electric Bells and Telephones
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.
Creators and cast
- Directors
- Yasuji Murata
Maturity rating
Not yet rated.
Where to watch
Not currently listed on any streaming, rental or purchase service.
Details and artwork from TMDB. Availability from JustWatch and can change without notice.