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Atomic Clock Turns 50

Posted by Zonk on from the happy-birthday dept.

karvind writes "BBC has an interesting story on the 50th birthday of atomic clocks. The first accurate caesium atomic clock was developed at the NPL in 1955 by Dr Louis Essen. And after 5 decades In September the US National Institute of Standards and Technology (NIST) used computer chip fabrication techniques to make a small atomic clock. The final development should see a battery-operated system about the size of a sugar lump. NIST also has a page on history of atomic clocks"

1 of 482 comments (clear)

  1. Setting the clock initially by xtapalapaquetl · · Score: 2, Insightful

    This is a question that must get asked a lot, and I wasn't able to find an answer (casually searching) on the gov website.

    How did they figure out how to set the clock initially? Thanks.