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Keeping time through the ages : the history of tools used to measure time
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Keeping time through the ages : the history of tools used to measure time
-- History of tools used to measure time
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Examines how time has been measured through history, by such methods as observation of natural cycles and different kinds of clocks and watches.
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Authors
Levy, Janey
Subjects
Time measurements--Instruments.
Time measurements.
Clocks and watches.
Language
English
Series
PowerMath
Dimensions
23 cm.