The lever and the pulley / Hellman, Hal

Author:

ISBN13: 
9780871310729
LCCN: 
7416136384
Compare Title: 
theleverandthepulley
Call Number: 
621.9

The lever and the pulley

  • Hellman, Hal
1971
Describes how levers and pulleys make lifting and moving things easier.
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