Results

Acting in Turn (1974)

Director

Robin Jackson

Producer

George Seager

Subject

Engineering; Technology

Distribution

Out of distribution, Videocassette. U-matic, VHS. col. 20 min.

Traces the development of the gear from the first recorded use in a crude form over two thousand years ago to its widespread use in many forms today. A lever is a means of transferring power. The gear wheel...

DVD Find Other Record only