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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/f73b4c41-26cd-4f12-b566-fc4f4e1c7a8fo%40googlegroups.com.
