> Remember that while you are 1340 meters up, the mountains gravity pull creates > a local compensation to a small degree, so you will not fully experience the > full altitude difference.
Magnus, Yes, I considered this but found the compensation was several orders of magnitude below the numbers I was working with so I got to ignore it. I mean, you think mountains sound big until you compare them to a whole planet. Don't get hung up on subtle variations in g itself. There are many factors that go into g for any place (and time) on earth. The main effect is that I moved from R+300 meters at home to R+1640 meters on the mountain, where R is the radius of the planet. The GR redshift (or a blue shift in this case) is 1.1e-16/m in the vicinity of R. The 1340 m delta times 1.1e-16/m gives a nominal redshift of 1.5e-13. For a experiment such as this the relativistic effects are velocity and altitude. Traveling under 65 mph for two hours there, and back, cost me only about -50 ps. Staying 1340 m above home for 40 hours gave me +22 ns, so the GR effect totally dominates over the SR effect. > full altitude difference. It would have been a different exercise if you took > a hotair balloon more or less straight up from your home. It might however be > a challenge to stay up there for long enought to be comparable. Yes, and instead of dropping sand to keep aloft over time I could drop the lead acid batteries as I use them up! /tvb _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
