Electrical Telegraphy, Electric Bells and Telephones
Denshin Denrei Denwa · 電信 電鈴 電話
- Format
- Film
- Durée
- 10 min
- Statut
- Terminé
- Genres
- Educational
- Classification
- G · Tous publics
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.
Où regarder Electrical Telegraphy, Electric Bells and Telephones en France
Aucune plateforme officielle connue pour le moment.