Actually, simply use a pendulum in a vacuum chamber, and pulse a LED shining toward the pendulum in the plane of rotation. Eventually, radiation pressure will synchronize it... Don
----- Original Message ----- From: "Jim Palfreyman" <[email protected]> To: "Tom Van Baak" <[email protected]>; "Discussion of precise time and frequency measurement" <[email protected]> Sent: Wednesday, March 04, 2009 11:22 PM Subject: Re: [time-nuts] GPS disciplined mechanical clocks > So if I set my GPS locked 3325B to 1Hz (sine wave) and put that into my > M&K > subwoofer and sat that next to my pendulum clock (with its ~1m long > Reifler > pendulum) it should keep perfect time. > > Beauty! > > > > 2009/3/5 Tom Van Baak <[email protected]> > >> > mechanical, more of a hybrid, but I don't know how you'd discipline a >> > mechanical clock with a system that had to drive in parallel with the >> escape >> > mechanism, the two would fight each other. >> >> Eric, >> >> Precision pendulum clocks, when mounted near each other, >> have been known to eventually get into phase lock. So one >> idea is to add a GPS 1PPS driven bass speaker or solenoid >> or some sort of thumping contraption. Perhaps eventually the >> pendulum clock would lock to the vibrations on the the wall. >> >> /tvb >> >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
