[time-nuts] Yb clock - NPR Story on Atomic Clocks

[Hal Murray]

> Optical clocks keep getting a little bit better each time they try this or
> that. They still have a way to go before you will have one running 24/7/365
> without it costing more than even NIST can afford to spend.  

>From Daniel Kleppner's Time Too Good to Be True
Physics Today, March 2006
  http://scitation.aip.org/journals/doc/PHTOAD-ft/vol_59/iss_3/10_1.shtml

The accuracy of these clocks has improved by roughly a factor of 10 every 
decade since they were introduced in the mid-1950s and in the next few years 
the accuracy is expected to reach 1 part in 10E16.

Exponential, just like Moore's law.


-- 
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