[time-nuts] Shortt Clock Recent Measurements
Tom Van Baak (lab)
tvb at leapsecond.com
Mon Dec 9 21:39:26 EST 2013
Brooke,
Not sure what you find in error; please explain.
I have all the Shortt info you need. Not all of it is for Wikipedia; contact me off-line.
Just got back from the CalTech
Time Symposium:
http://leapsecond.com/nawcc2013/
The conjecture about tides is explained in great detail here:
http://leapsecond.com/hsn2006/
Meanwhile, see:
http://leapsecond.com/pend/shortt/
http://leapsecond.com/pend/shortt/1931-RAS-Analysis-Loomis-Chronograph-Brown-Brouwer.pdf
http://leapsecond.com/pend/shortt/1931-RAS-Precise-Measurement-Time-Loomis.pdf
/tvb (i5s)
> On Dec 9, 2013, at 5:02 PM, Brooke Clarke <brooke at pacific.net> wrote:
>
> Hi:
>
> The Wiki page for the Shortt pendulum clock has a "Recent Measurements" (1984) paragraph that's in error.
> http://en.wikipedia.org/wiki/Shortt-Synchronome_clock#Recent_accuracy_measurement
>
> While it's probably true that the clock is stable to 200 uS per day (i.e. 2E-9) I believe Alfred Loomis discovered the effect of the moon on this clock a long time ago.
> Is there a link to his paper at the Royal Society on that topic that could be added to the Wiki page?
>
> Also see:
> http://www.amazon.com/Tuxedo-Park-Street-Science-Changed/dp/0684872889/ref=sr_1_1
> http://www.leapsecond.com/hsn2006/ch1.htm
>
> --
> Have Fun,
>
> Brooke Clarke
> http://www.PRC68.com
> http://www.end2partygovernment.com/2012Issues.html
>
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