Leap Seconds

The earth is supposed to rotate every 24 hours. Sometimes, though, it takes less time and sometimes it takes more. So, to be precise, we depend on atomic clocks. And therein lies the problem.  In…

Time Matters

In a brief and wonderful 2003 article called “Clocks and the Wealth of Nations“, economic historian David Landes explained the importance of accurate timekeeping. China missed navigational…

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