An introduction to six simple machines--the lever, the inclined plane, the screw, the wheel and axle, the wedge, and the pulley--and their use in more complex machines such as derricks, bulldozers, and metal lathes.
- ISBN10 0690043007
- ISBN13 9780690043006
- Publish Date 1 February 1989 (first published 1 January 1983)
- Publish Status Out of Print
- Out of Print 18 November 2014
- Publish Country US
- Imprint Crowell
- Format Hardcover
- Language English