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Keeping Time Through the Ages: The History of Tools Used to Measure Time (Math for the Real World) (Paperback)

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Description


This trip through history examines how time has been measured, by such methods as observation of natural cycles and different kinds of clocks and watches. Includes illustrations and descriptions of various time keeping devices such as obelisks, sun dials, sand clocks, candle clocks, and incense clocks.

Product Details
ISBN: 9780823989171
ISBN-10: 0823989178
Publisher: Rosen Classroom
Publication Date: January 16th, 2010
Pages: 32
Language: English
Series: Math for the Real World

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