On Wednesday, March 7, 2018 at 11:04:09 PM UTC-5, Brent wrote: > > > > On 3/7/2018 5:39 AM, [email protected] <javascript:> wrote: > > *Thanks for your time and effort, but I don't think you understand my* > *question. Suppose a test particle is restrained spatially, say in * > *the Sun's gravitational field. When released, it starts to move (toward * > *the Sun). How does GR explain this motion? By the advance of time? AG* > > > Time was advancing all along. Your restraint was a force causing the > particle to follow a non-geodesic path through space-time. When you > released it, it then followed the "straightest path possible", i.e. a > geodesic. > > Brent >
So time is the "culprit". What has this resumption of spatial motion (along a geodesic in spacetime) have to do with conservation of momentum, if at all ? TIA, 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.
