> but what source(s) did you use to arrive at the > 1.5E-13 figure? John,
Good question. Here's how: c = 299792458 m/s and to a few percent g is 9.806 m/s^2. The GR redshift is gh/c^2 so that's where the 1.091e-16 / meter number comes from. Now the back-of-envelope redshift prediction prior to the trip was: home lab elevation (300 m), mountain parking lot elevation (1640 m), gives a net elevation gain 1340 m; 1340 m x 1.091e-16 / m = 1.46e-13. About 40 hours at about 1.5e-13 is about 20 ns. This told me the experiment was feasible -- because I had a nearby mountain high enough, TIC's that could easily measure 20 ns, and Cs that were stable to 1e-14 at a day. The time dilation prediction after the trip was made by integrating actual GPS positions of the minivan during the trip. Clearly we didn't go instantly from home at 300 meters, to the mountain at 1640 meters, or spend exactly 40 hours up there. Based on this GPS data, the total number of meter-seconds was calculated and the predicted time dilation was 22.3 ns. /tvb _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
