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Search - Early Discoveries: Astrolabe, abacus, compass, camera. . .the science, the models and YOU! (Crafty Inventions) (Crafty Inventions)

Early Discoveries: Astrolabe, abacus, compass, camera. . .the science, the models and YOU! (Crafty Inventions) (Crafty Inventions)
Early Discoveries Astrolabe abacus compass camera the science the models and YOU - Crafty Inventions
Author: Gerry Bailey
Progress has led to more exciting inventions in this title of the Crafty Inventions series. Find out why astronomers developed the astrolabe, learn how military signals led to the invention of the kite and how the abacus made arithmetic easy. Then get your bearings with your own working compass, look through a pinhole camera, rig-up a model boat...  more »
ISBN-13: 9781904668701
ISBN-10: 1904668704
Publication Date: 6/1/2005
Pages: 48
Reading Level: Ages 4-8
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Publisher: Mercury Books
Book Type: Hardcover
Members Wishing: 0
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