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What is a plane?
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What is a plane?
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19 Total copies, 19 Copies are in, 0 Copies are out.
Describes simple machines called planes or ramps and how they are used to make work easier.
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Authors
Douglas, Lloyd G
Subjects
Ramps (Walkways)
Inclined planes.
Language
English
Series
Simple machines
Dimensions
16 cm.