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Keeping Time Through the Ages

- The History of Tools Used to Measure Time

  • Format
  • E-bog, PDF
  • 32 sider
E-bogen er DRM-beskyttet og kræver et særligt læseprogram

Beskrivelse

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.

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