On Fri 2020-05-15T21:49:43-0700 Tom Van Baak hath writ: > Also, some of the very best pendulum clocks ever made were good enough that > their timekeeping was affected by lunar/solar tides. One is the English > Shortt-Synchronome and another is the Russian Fedchenko.
Those are not measuring solid earth tides per se. They are measuring the failure of the earth to deform as much as, and in phase with, the changing potential, so the local acceleration of gravity changes. I have not found any papers which say that two distant chronometers have yet been tied together with a stable enough optical network to measure the changing difference in their potentials. -- 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 https://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.
