On Friday, May 29, 2020 at 9:07:12 AM UTC-6, John Clark wrote: > > On Fri, May 29, 2020 at 10:46 AM Alan Grayson <agrays...@gmail.com > <javascript:>> wrote: > > *> Clark, since you claim implicitly to having a serious understanding of >> E&M, can you give a proof of Planck's BB radiation law? AG * >> > > Of course I can't! Mathematicians prove things, physicists don't. > Physicists propose theories and if it turns out the theory is compatible > with empirically derived results then it is generally accepted by the > scientific community, at least within a certain range of applicability. No > physicist gives a hoot in hell for a theory that is contradicted by > experimental results regardless of how closely it follows somebody's > "postulates". > > John K Clark >
You're just displaying your ignorance, shamelessly as suggested by your emotional insistence. Physics starts with postulates about how nature behaves. It's basically guesswork as Feynman asserts. I gave you some examples. And one can prove specific results from postulates, as Einstein did in his 1905 paper on SR in* DERIVING* the LT. Postulates are accepted if they give good predictions. No one doubts that, so you're affirming something no one disputes. Similarly, Planck didn't pull his BB radiation formula out of his hat. He must have started with some postulates, from which he derived his formula, and we accept the formula as "true" since it accurately predicts what is measured. If you can't say anything about Planck's formula, except obvious superficial comments such as the fact that he quantizes of the frequency modes, you know nothing more about this subject compared to someone like me who admits his courses in E&M were "crappy". 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 everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/c7b24ad6-17cf-4ca8-b96f-737ea0ac95ac%40googlegroups.com.
