Machines and work /

An introduction to machines, from levers and pulleys to compound machinery, which includes instructions for activities and projects to illustrate the principles.

Bibliographic Details

Main Author:	Ward, Alan, 1932-
Format:	Book
Language:	English
Published:	New York : Franklin Watts, [1993]
Series:	Ward, Alan, 1932- Project science.
Subjects:	Machinery > Juvenile literature. Machinery. Machinery > Experiments. Experiments.