[time-nuts] Hello

Hal Murray hmurray at megapathdsl.net
Tue Mar 27 14:27:49 EDT 2007


> Yes, others working with pendulums have also discovered that they end
> up making crude thermometers, barometers, or seismometers instead of a
> good clock. Still, not a reason to give up. But you know you have a
> world-class pendulum clock when, after having solved every other
> perturbation, you can see the effects of lunar tides in your data (as
> your good pendulum clock demonstrates it is also a fair gravimeter). 

That seems like a neat threshold.  Are current pendulum clocks good enough to 
notice tides?  When was the first published paper?  If not, how close?




-- 
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