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Episode Details: Clocks
Clocks
Series: Modern Marvels
Season: Season 6
Episode Number: 18
Air Date:
Duration: 44 min
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.
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