TY  - BOOK
AU  - Challen,Paul C.
TI  - Get To Know Wheels And Axles
T2  - Get to know simple machines
SN  - 9780778744719 
AV  - TJ147 .C45 2009
U1  - 621.8 CHA 22
PY  - 2009///
CY  - New York, NY
PB  - Crabtree Pub. Company
KW  - Wheels
KW  - Juvenile literature
KW  - Axles
N1  - Includes index; Wheels and axles -- The basic design -- How it works -- Wheel and axle in action -- Moving loads -- A multi-axle model -- A lifting machine -- Build a lifting machine -- Wheels and axles in action -- The fan in action -- Fighting friction -- How friction happens -- The wheel and axle as part of a complex machine -- Glossary
N2  - Read all about wheels and axles and their many uses in this new book. Children will be thrilled to learn of their many uses, from doorknobs to the insides of a clock. There are wheels that move, turn, steer, and serve as gears
ER  -