Modern Marvels

Clocks

TV-PG
S6 • E18    Feb 21, 1999    44m
Does anybody really know what time it is? Set your clocks as we explore the relativity of time from antiquity–when man attempted to chart time with methods ranging from shadows, candles, and water–to today’s atomic clock system–accurate to within one second every two-million years.

Where to Watch Clocks

Cast of Clocks

  • Lloyd SherrSelf - Narrator

 

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