Castle Under Siege!: Simple Machines by Andrew Solway

Castle Under Siege!: Simple Machines

Raintree Fusion: Physical Science

Andrew Solway

32 pages first pub 2005 (editions)

adventurous informative medium-paced
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Description

Presents a short study of how levers, wheels and axles, pulleys, inclined planes, wedges, and screws work, and the importance of these principles in various machines.

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