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PeterDonis's latest activity
PeterDonis
reacted to
renormalize's post
in the thread
A
Variation of CMFR mass density ##\rho## along a world line
with
Like
.
Per Dirac's General Theory of Relativity eq.(25.4), the energy-momentum tensor of a dust (i.e., pressure-less) material of mass-density...
Today, 6:16 PM
PeterDonis
replied to the thread
Great one-liners from PF members
.
For some calls I am on such a thing would be a welcome change... :wink:
Today, 1:03 PM
PeterDonis
replied to the thread
I
Are there any accepted relativistic interpretations of quantum mechanics?
.
No, it doesn't. Classical relativity has no problem at all modeling the observer as being in spacetime, not outside it. The simplest...
Today, 11:11 AM
PeterDonis
replied to the thread
I
Are there any accepted relativistic interpretations of quantum mechanics?
.
I don't think it's problematic in quantum field theory, since QFT is explicitly modeled using spacetime. The question would be which QM...
Today, 10:34 AM
PeterDonis
replied to the thread
I
Are there any accepted relativistic interpretations of quantum mechanics?
.
It isn't. Boson vs. fermion has experimental consequences.
Today, 9:00 AM
PeterDonis
replied to the thread
I
Conservation of energy and wave function collapse
.
After moderator review, the thread will remain closed.
Yesterday, 2:36 PM
PeterDonis
replied to the thread
A
Feynman rules for Entangled photons
.
Yes, there are. They just don't mean what your thread title implies that they mean, as @Demystifier pointed out in post #26. We don't...
Yesterday, 12:56 PM
PeterDonis
replied to the thread
I
Conservation of energy and wave function collapse
.
Thread closed for moderation.
Monday, 7:05 PM
PeterDonis
replied to the thread
I
Charged box mass-energy
.
Didn't you just describe one?
Monday, 5:47 PM
PeterDonis
replied to the thread
B
Why is it impossible to go faster than the speed of light?
.
One further note for future readers: And there is certainly a viewpoint which makes that statement true; you give some aspects of that...
Monday, 4:16 PM
PeterDonis
replied to the thread
B
Why is it impossible to go faster than the speed of light?
.
Yes. As you could have verified for yourself by just looking at his Wikipedia page. No, you're not. A serious person would have done...
Monday, 4:13 PM
PeterDonis
replied to the thread
B
Why is it impossible to go faster than the speed of light?
.
I would put this differently. I would put it that we may one day extend our best theories with ones that cover a wider domain, and have...
Monday, 3:22 PM
PeterDonis
reacted to
Ibix's post
in the thread
B
Why is it impossible to go faster than the speed of light?
with
Like
.
Huh? Seriously? Newtonian physics assumes gravity propagates at infinite speed. Tachyonic particle theories got a brief airing during...
Monday, 3:20 PM
PeterDonis
replied to the thread
B
Why is it impossible to go faster than the speed of light?
.
This is getting into personal speculation, which is off limits here. Whatever the relevant time period is, the theory of relativity has...
Monday, 3:19 PM
PeterDonis
replied to the thread
B
Why is it impossible to go faster than the speed of light?
.
I have no idea why you would think this. When Einstein published his classic 1905 papers, he was in the final stages of getting his...
Monday, 3:16 PM
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