Commencing with a quick survey of the outstanding discoveries which led to the discovery and use of electric current, this film then answers the question put in the title. Opens with a survey of those outstanding discoveries which led to the development and use of eclectic current. Diagrams are used to explain the concept of matter as composed of atoms, each consisting of a nucleus and revolving electrons, electric current is explained as being a movement of these electrons.
How to watch
In ACMI's collection
Black and White
16mm film; Access Print (Section 1)