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

[Bill Janssen]

Dave Andersen wrote:

>Compare your clock to an ensemble of really good clocks.
>
>   -Dave
>  
>
UTC is determined by using a large ensemble of clocks and weighting the 
individual clocks
contribution depending how much they varied from the average (or some 
such measure) The details
I don't remember :-)

Bill K7NOM

>Hal Murray wrote:
>  
>
>>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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