[time-nuts] The Original Time Nut

Brooke Clarke brooke at pacific.net
Fri Feb 22 16:36:25 EST 2008

Hi Jan:

In addition to the book by Dava Sobel there's a good movie.  Links on the Ukiah 
Observatory web page below.

The related problem that was much harder to solve is the Latitude.  For more on 
that see:  http://www.prc68.com/I/UkiahObs.shtml   I live in Ukiah, California, 
where one of these observatories is located.

Another Time Nut you might be interested in reading about is Alfred L. Loomis 
chronicled in the book Tuxedo Park by Jennet Connant.  Discovered and published 
data showing the effect of tides on pendulum clocks.

And of course "Lunar/Solar Tides and Pendulum Clocks (part 1)" at:

Have Fun,

Brooke Clarke
http://www.prc68.com/P/Prod.html  Products I make and sell
http://www.prc68.com/Alpha.shtml  All my web pages listed based on html name
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Web Cam

Jan Fredriksson wrote:
> Hi,
> Can anyone point to some good reading on John Harrison, 
> who in the 18th century devoted his life to making the best
> timekeepers ever built and who also constructed and built 
> the first usable marine chronometer.
> Jan F 
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