On Wed 2018-12-26T10:30:24-0600 Chris Howard hath writ: > I see the different forms of deviation measurements and they are all > one-to-one comparisons. > > Is there anything to be learned from doing mass data gathering?
> So, has this sort of thing been done? > Why is everything one-to-one only? Doing this was the reason for the creation of the Bureau International de l'Heure (BIH) a century ago. The initial announcement of their work invited observatories around the world to participate via correspondence sending the received times of radio time signals. http://adsbit.harvard.edu/full/1922BuBIH...1....1. A few years later they presented to the 1928 General Assembly of the IAU a complete history of timekeeping and an inventory of their equipment including the clocks at l'Observatoire de Paris which were located down in the catacombs to maintain stable conditions http://adsbit.harvard.edu/full/1929BuBIH...3..255. The progression of issues of Bulletin Horaire shows the development of technologies and techniques for intercomparing clocks from the age of pendulum clocks with constant pressure cases into the age of atomic chronometers. At the retirement of two long-time staffers they published plots of the improvement of timekeeping from 1922 to 1964. https://www.ucolick.org/~sla/leapsecs/annastoyko.html -- Steve Allen <[email protected]> WGS-84 (GPS) UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
