Title: Machines and how they work
First published: 1983
Description: 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.
Subjects: Juvenile literature, Simple machines, Gearing, Pulleys, Levers, Machinery, juvenile literature, Machinery
LC classification: TJ147 .W428 1983