Denshin Denrei Denwa
8

Denshin Denrei Denwa

English Title : Electrical Telegraphy, Electric Bells and Telephones

Electric Bells and Telephones ／ Electrical Telegraphy ／ Electrical Telegraphy, Electric Bells and Telephones ／ 電信 電鈴 電話

Description

By wrapping copper wire around an iron rod and connecting it to a battery, an electromagnet is created. This educational film blends live‑action footage with animation to explain how electromagnetism underpins the principles and structures of electric bells and telephones.
  • Type:WINTER
  • Date:1931
  • Status:FINISHED
  • Duration:10 min/ep
  • Age Rating:G - All Ages

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