On Fri, Jul 4, 2025 at 3:20 PM Brent Meeker <[email protected]> wrote:
*> Energy is the variable conserved due to the invariance of physical laws > under time-translation; an application of Noether's theorem in classical > and SR physics.* *Right, but in curved space-time, like you have in General Relativity, there is no universal way to define gravitational energy density and no universal time translation. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* vd8 > -- 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 visit https://groups.google.com/d/msgid/everything-list/CAJPayv1m9Ke6qDPmqEZV60bnorqat039nBD3eE87qEY%3DmT-8cA%40mail.gmail.com.
