> In message <[email protected]>, Mike S > writes: >>At 06:03 AM 6/11/2010, Poul-Henning Kamp wrote... > >>I assume you mean use a clock to measure the earth's rotation, using >>quasars as a positional reference. That's circular logic. > > Obviously, any measurement of earths rotation has to involve > circular logic :-)
Large ring laser gyros can also measure the earth rotation. However main use is in "higher" freq measurements of earth rotation. Perhaps a large RLG and a starlooking sensor running on the same clock... That should cancel the clock from the observations. http://tau.fesg.tu-muenchen.de/~us/Docs/Ring-SPb04.pdf -- Björn _______________________________________________ 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.
