I am not sure why you have endless trouble with this. On the Avoid list you repeatedly brought up this question, and in spite of dozens of explanations you raise this question over and over. You need to read a text on this. The old Taylor and Wheeler book on SR gives some reasoning on this. Geroch's book on GR is not too hard to read.
LC On Tuesday, October 13, 2020 at 12:20:44 AM UTC-5 agrays...@gmail.com wrote: > > > On Monday, October 12, 2020 at 11:11:33 PM UTC-6, Brent wrote: >> >> >> >> On 10/12/2020 9:56 PM, Alan Grayson wrote: >> > Why is it that in SR a stationary clock appears to advancing at a more >> > rapid rate than a moving clock, and vice versa -- so the effect is >> > relative or symmetric, not absolute -- whereas in GR the effect seems >> > absolute; that is, a ground clock actually advances at a slower rate >> > compared to an orbiting clock? AG >> >> It's the same as the twin effect. The clock on the ground is following >> a non-geodesic path thru spacetime and so measures less duration, while >> the orbiting clock is following a geodesic path. In relativity the >> minus sign in the metric means that the path that looks longer projected >> in space is shorter in spacetime. >> >> Brent >> > > How does gravity cause the difference between what the theories predict? > AG > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/22cb3b19-4a7f-45a2-96c6-bd4b415c521en%40googlegroups.com.
