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Tripped up by timekeeping.

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اقرأ على الانترنت اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Lippincott, Kristen
  • المصدر:
    Nature. 7/2/1998, Vol. 394 Issue 6688, p32. 2p. 2 Color Photographs.
  • معلومة اضافية
    • نبذة مختصرة :
      Reviews the book `Time's Pendulum: The Quest to Capture Time--From Sundials to Atomic Clocks,' by Jo Ellen Barnett.