Here’s a letter to the Physics Today from a guy who is way too into time:
As a collector of vintage and modern atomic clocks, I discovered it was possible, using gear found at home, to convert our family minivan into a mobile high-precision time laboratory…
He ends the letter like this:
It was the best extra 22 nanoseconds I’ve ever spent with the kids.
So, yes, not only do we live in a time when atomic clocks are altimeters, but when relativity is child’s play.
The letter is worth reading, and his LeapSecond.com website is worth visiting if you can get over the obsession thing.
(Thanks Meredith)