[time-nuts] New frequency standard, Mercury better than Cesium?

Hal Murray hmurray at suespammers.org
Sun Jul 16 17:28:19 UTC 2006


>From the horses mouth:

  http://www.nist.gov/public_affairs/releases/mercury_atomic_clock.htm


This brings up a question I've been meaning to ask for a while.

How do you tell how good your best clock is?  I can figure out how good a 
not-great clock is by comparing it to a better one.  But what if there isn't 
a better one?


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