Intermediate Simple Machines: Pulleys

Intermediate Simple Machines: Pulleys

$9.95
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Straightforward diagrams of the individual segments of a pulley are combined with humorous, practical applications of fixed and moving pulleys as intrepid caveman Zog adapts these simple machines to Stone Age life. “As entertaining as it is educational.” — Science Books & Films. CINE-Golden Eagle 12 Minutes | Color

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