On 11/29/2018 5:05 PM, Mike Gordon via olympus wrote:
Some new configuration of ytterbium optical lattice clock it seems.
Reproducible to the 10**-18 level and should be a tool to
detect gravitational waves and probe for detection of dark matter--very cool.
https://www.sciencealert.com/scientists-have-developed-atomic-clocks-so-precise-they-could-detect-gravitational-waves
Not exactly like my Grandmother's Tiffany never-wind which was an early battery
powered torsion pendulum clock from early 1920's. I think I may have broken it
as a kid trying to tinker with it.
It was back impulsing so had to install a diode which I doubt is appropriate
for the time. Could never get it more accurate than 2-3 min/day and sent it to
3 electrical horologists. They could not do that much. There apparently are
just some problem clocks.
Both the history of clocks, (esp. the drive to develop a shipboard clock accurate enough for latitude determination) and
chaos theory show that such a design can never be very accurate. Smaller size/higher frequency make for accuracy.
Among my too many watches, a $10 Chinese off brand and a $40 Timex are the ones that don't need resetting between time
and battery changes.
BTW, I can't imagine you wouldn't enjoy a visit to the Willard House & Clock Museum <https://willardhouse.org/> in
Grafton. We spent a pleasant and informative hour or so on the tour. I can't imagine you wouldn't find the gear making
machines fascinating.
Horo Logical Moose
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What if the Hokey Pokey *IS* what it's all about?
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