On Wednesday, March 20, 2019 at 11:13:06 PM UTC-6, [email protected] wrote: > > > > On Wednesday, March 20, 2019 at 10:08:53 AM UTC-6, John Clark wrote: >> >> On Wed, Mar 20, 2019 at 9:16 AM <[email protected]> wrote: >> >> * > how does GR establish the Principle of Relativity (for accelerating >>> frames)? AG * >>> >> >> It doesn't, Einstein never said everything is relative. Unlike velocity >> there is such a thing as absolute acceleration, if that were not true the >> Twin Paradox could not be resolved. >> >> John K Clark >> > > But in GR don't the field equations take the same form in all frames, > including accelerating frames, which if I understand correctly,* IS* the > Principle of Relativity? TIA, AG >
*Clark, how about an answer? If the GR field equations have the same form in all frames, including accelerating frames, isn't this what we call the Principle of Relativity? 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
