fiber.g...@fiber.guru said: > One thing that was pretty cool is that NIST developed a fountain clock that > is so accurate it is influenced by altitude. They had to raise the clock > once to install a new floor beneath and when they raised the clock it > impacted the frequency. Originally discouraged by this it suddenly occurred > to someone that they had developed an extremely accurate way to measure > height! Now they just have to miniaturize it and make it affordable (of > course this is the bane of laboratory experiments).
Time Too Good to Be True, Daniel Kleppner Physics Today, March 2006, page 10 https://physicstoday.scitation.org/doi/10.1063/1.2195297 -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
