On Sat, Jun 7, 2025 at 8:10 AM Alan Grayson <[email protected]> wrote:
*> Where in Feynman's argument does he assume the Principle of Least Action > and Time-translation invariance to conclude Conservation of Energy around a > closed loop? AG * *Where? I don't understand the question. Feynman showed that IF you can formulate classical mechanics using the Principle of Least Action, AND IF the system has time-translation symmetry, THEN Noether tells us that the conservation of energy is a logical necessity. * *BUT can we successfully formulate classical mechanics using the Principle of Least Action? Only experimentation can answer that question. And does our universe have time-translation symmetry? Only observation can answer that question. * * John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* ooa > > > -- 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/CAJPayv2_YeXPPX2S3v4U_PBh1kxhKW%3D%3DjzgFVhzsWeu8UpkEKA%40mail.gmail.com.
