Pulleys /

What are pulleys? Look around and you will see that these machines are everywhere. Discover how they are used and how they make work easier!

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Bibliographic Details
Online Access:Electronic book from EBSCO
Main Author: Walker, Sally M.
Other Authors: Feldmann, Roseann., King, Andy (Illustrator)
Format: eBook
Published:Minneapolis : Lerner Publications Co, ©2002.
Series:Walker, Sally M. Early bird physics books.