Hi There are indeed “Gravity Nuts” who would scoff at the limited sensitivity of a conventional clock as a gravity measurement device……Lots of interesting hobbies to fiddle with ….
Bob > On Dec 1, 2018, at 8:17 AM, Tom Van Baak <[email protected]> wrote: > >> Surely, this is nothing new? > > Once or twice a year some national lab, often NIST, makes an announcement of > a new level of precision for their atomic clocks. It's pretty cool, actually. > It's good PR. The rate of progress is amazing. > >> I thought standard pendulum clocks were quite good at detecting gravity as >> well! > > Yes and no. Modern uses for precision gravity measurement often require > precise data while flying or in orbit. Pendulum clocks don't do well in those > conditions. > >> They make excellent earth-quake detectors - Randall Peters published many >> excellent papers on this subject many years ago, fascinating stuff. > > Yes. For example, see the pendulum results of yesterday's earthquake: > > http://leapsecond.com/pend/synchronome/quake.htm > >> John Moran > > /tvb > > > _______________________________________________ > 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. _______________________________________________ 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.
