Dale's latest activity
-
Dale reacted to Matterwave's post in the thread Graduate Musing on the Foundations of Statistical Mechanics with
Like.
Maybe the closest way I know how to steer this towards physics and not philosophy: If I knew everything there is to know about a... -
Dale reacted to Matterwave's post in the thread Graduate Musing on the Foundations of Statistical Mechanics with
Like.
Yeah, I don't really have many calculational questions arising from the musings as I am no longer being asked by homework assignments to... -
Dale replied to the thread Graduate Musing on the Foundations of Statistical Mechanics.Because of the ontological questions? If so, just pick the ontology you prefer. You are always free to change it later if your... -
Dale replied to the thread Graduate Musing on the Foundations of Statistical Mechanics.I cannot help you with philosophical questions like ontological status. Usually, you can adopt any ontology you like and simply adjust... -
Dale replied to the thread Graduate Musing on the Foundations of Statistical Mechanics.That seems closely analogous to me. In the case of work if you assume a piston then you can show the thermodynamic and mechanical work... -
Dale replied to the thread High School The problem of energy appearing out of nowhere.Of course it does. That is the whole point of writing the equations of motion and finding solutions. If you have a system of equations... -
Dale replied to the thread Graduate Musing on the Foundations of Statistical Mechanics.Well, this sort of thing is pretty common. Like for “work”. In Newtonian mechanics it is force times displacement. But in thermo it is... -
Dale replied to the thread Graduate Is Energy conservation among sectors (EM,GR,QM) a principle?.I would wait until the final version is published. But I don’t think that it changes my answer. -
Dale replied to the thread High School The problem of energy appearing out of nowhere.A complete model in this universe, yes. The question was if an alternative universe without that feature is self consistent. And it... -
Dale reacted to PeterDonis's post in the thread High School The problem of energy appearing out of nowhere with
Skeptical.
That's correct. It's a consequence of the Einstein Field Equation, plus including all forms of local stress-energy in your model. In a... -
Dale replied to the thread High School The problem of energy appearing out of nowhere.That is the opposite of what I said above. The discussion that others were having is whether or not the FLRW spacetime is a counter... -
Dale replied to the thread High School The problem of energy appearing out of nowhere.Sorry about that. There doesn’t appear to be much in the way of later follow-up. -
Dale replied to the thread High School The problem of energy appearing out of nowhere.Here is a relativistic damped oscillator: https://www.jstor.org/stable/2098796 It was not constructed as I had thought, by adding an... -
Dale replied to the thread High School The problem of energy appearing out of nowhere.I’m sure I can google up a reference for a relativistic damped harmonic oscillator for you. I will try to do so tonight -
Dale reacted to Matterwave's post in the thread High School The problem of energy appearing out of nowhere with
Like.
Do you define GR to "obey relativity" (or do you read "obey relativity" as global Lorentz invariance)? Depending on the reading of the...