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Search - Working Things Out: Pulleys, turbines machines -- the science the models and YOU! (Crafty Inventions) (Crafty Inventions)

Working Things Out: Pulleys, turbines machines -- the science the models and YOU! (Crafty Inventions) (Crafty Inventions)
Working Things Out Pulleys turbines machines the science the models and YOU - Crafty Inventions
Author: Gerry Bailey
What inspired the Romans to build straight roads? Why did Archimedes want to make a giant screw? More tricky problems lead to another 10 brilliant inventions in this title of the Crafty Inventions series. Discover how wind was used to power machines and how printing sped up book-making. Then string up a superpulley, build a wind turbine and carv...  more »
ISBN-13: 9781904668695
ISBN-10: 1904668690
Publication Date: 3/1/2005
Pages: 48
Reading Level: Ages 9-12
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Publisher: Mercury Books
Book Type: Hardcover
Members Wishing: 0
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