> > Further, would you be able to see the phase of the moon and the tides? > This > is using the pendulum as a gravimeter. Would it be sensitive enough for > that? >
Yes. There's a book called "My Own Right Time", by a skilled amateur clockmaker (Philip Woodward), that shows some periodograms of pendulum-clock time series. Various tidal frequencies are clearly detected as I recall. He has an interesting design aesthetic. http://www.amazon.com/Own-Right-Time-Exploration-Clockwork/dp/0198565224/ Also there's Robert Matthys' "Accurate Clock Pendulums" which does a deep dive into pendulum materials and systems (tldr: use fused silica rods and be careful about mechanical connections and fasteners): http://www.amazon.com/Accurate-Clock-Pendulums-Robert-Matthys/dp/0198529716/ I wonder if a gravimeter could be used to aid a pendulum clock, just as temperature and barometric compensation did back in the day. Cheers, Peter _______________________________________________ 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.
