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Using pulleys and gears
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Using pulleys and gears
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An introduction to pulleys and gears as simple machines. Coverage includes the kind of pulleys used by mountain climbers, how gears help cars and buses work and why weight lifters need pulleys to help them train.
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Authors
Sadler, Wendy
Subjects
Pulleys.
Gearing.
Simple machines.
Language
English
Series
Raintree perspectives Machines inside machines
Dimensions
28 cm.