10 Strange Facts About Atomic Clocks

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How does the Puls Wearable differ from a smart watch?

How does the Puls Wearable differ from a smart watch?

The Puls Wearable is a smart watch-smartphone combination that looks like a chunky bracelet. Learn more about the Puls Wearable.

Author's Note

I've always been fascinated with time keeping and clocks, and as an elementary school student in the 1960s, I first learned about the wonder of atomic clocks that could measure tiny units of time with incredible precision. But until I started doing research for this piece, it had never occurred to me that it was possible to construct a clock that is more precise at keeping time than the Earth's rotation. But since atomic clocks have been used to prove Einstein's theory that time is relative to one's position and velocity rather than constant, I have to wonder whether there really is such a thing as correct time at all. I think I'm going to use that as an excuse the next time that I'm late for a deadline!

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