On Tuesday, October 13, 2020 at 8:06:30 AM UTC-6, Lawrence Crowell wrote: > > 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 >
Actually, I think your memory is faulty, other than to express your annoyance with my question. In any event, if gravity and acceleration exist for a system under consideration, why is SR relevant? Why does Clark claim that the result of SR must be subtracted for the result of GR to determine an objective outcome, when the conditions of SR are non-existent? AG > > > 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/e627cf4e-8781-45cb-8348-caff0460babeo%40googlegroups.com.
