Instead of a GPS disciplined one ton mass, Huygens used a second clock on his mantel. The very slight acceleration that each pendulum exerted on the mantel caused the other clock to displace slightly, so its escapement triggered either earlier or later, and finally the clocks became synchronized with their pendulums 180 degrees out of phase. I'm sure a large oscillating mass anywhere near your house -- i.e. wherever a seismograph would detect it -- would do the same thing, regardless of gravity.
Aart Olsen ----- Original Message ----- From: "Bill Hawkins" <[email protected]> To: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Monday, December 12, 2011 9:17:07 PM Subject: Re: [time-nuts] gravity controlled pendulumn clock? Could I discipline a Shortt clock to GPS by using a PLL that slid a one ton mass along the basement floor near the free pendulum? Sliding the one ton mass is left as an exercise for the reader, as is installing it in the basement. _______________________________________________ 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.
