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The Unexpected Measure that Makes the Modern World Tick(10)
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Intro (
00:00
)
The Naval Observatory (
01:38
)
History of Time (
03:26
)
Minutes and Seconds (
04:20
)
Division of Time (
05:01
)
Atomic Clock (
06:15
)
The Second (
07:43
)
Optical Frequencies Standards (
08:53
)
The Naval Observatory (
09:50
)
Network Time Protocol (
11:48
)
0.001237203 seconds
