Straightforward diagrams of the individual segments of a pulley are combined with humorous, practical applications of fixed and moving pulleys as intrepid caveman Zog adapts these simple machines to Stone Age life. “As entertaining as it is educational.”
— Science Books & Films.
Part of “Intermediate Simple Machines,” a five-part series starring Zog, an animated cavemen who cleverly clarifies and demonstrates the benefits of simple machines. A Coronet release. Produced by David Christianson.
12 minutes • Color