A REAL "primary standard" is something that you can assemble the kit of parts anywhere in the Universe, flip the switch, and get exactly the same time interval as anywhere else.
That obviously does NOT apply to the pendulum, as it depends on the value of G. -John ================== > I suppose a pendulum can be a primary standard at some accuracy. Using > the "kit of parts" analogy, if one builds the pendulum and operates it at > sea level, the period of the pendulum is entirely determined by the > physical dimensions and the gravitational constant. _______________________________________________ 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.
