On Sunday, December 17, 2017 at 12:21:27 AM UTC, Brent wrote: > > > > On 12/16/2017 2:59 PM, agrays...@gmail.com <javascript:> wrote: > > There's a problem applying SR in this situation because neither the ground > or orbiting clock is an inertial frame.AG > > > An orbiting clock is in an inertial frame. An inertial frame is just one > in which no forces are acting (and gravity is not a force) so that it moves > with constant momentum along a geodesic. Although it's convenient for > engineering calculations, from a fundamental veiwpoint there is no separate > special relativity and general relativity and no separate clock > corrections. General relativity is just special relativity in curved > spacetime. So clocks measure the 4-space interval along their path - > whether that path is geodesic (i.e. inertial) or accelerated. >
*Interesting way to look at it. So free falling in a gravity field is an extension of SR. But the thing I find puzzling is that in GR the curvature of space-time is caused by the presence of mass, yet I can draw the path of an accelerated body as necessarily a curve in a space-time diagram. I am having trouble resolving these different sources of curvature. AG* > > Brent > -- 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 post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
