PeroK's latest activity
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PeroK replied to the thread A.I. - Human Job Replacement.Time to retrain as a plumber? -
PeroK reacted to Nugatory's post in the thread Undergrad Relativity, time, and quantum mechanics with
Informative.
No position means no path along which we can integrate to find the proper time. Instead we use QFT and calculate an amplitude for a... -
PeroK reacted to PeterDonis's post in the thread Undergrad Relativity, time, and quantum mechanics with
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@anuttarasammyak you are trying to analyze quantum experiments using relativity, but using non-relativistic QM. That's not going to... -
PeroK reacted to renormalize's post in the thread Undergrad Relativity, time, and quantum mechanics with
Informative.
The answer by @Nugatory is incorrect. As suggested by @anuttarasammyak, experiments with muonic atoms show that bound particles do... -
PeroK reacted to renormalize's post in the thread Graduate Can a causal or time-like structure emerge without assuming a metric? with
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This would happen whenever your stability condition (acyclicity?) forces the transitive closure of your general binary relation ##R\,##... -
PeroK replied to the thread Undergrad The paradox of symmetrical time dilation.Are you sure you are in the right frame of mind to learn relativity? -
PeroK reacted to weirdoguy's post in the thread High School Is there anything in the Universe that is not fundamentally made up of matter? with
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@Amazed, could please stop telling me, and other physicists, how to do, understand and think about physics? You don't go to surgeons and... -
PeroK reacted to haruspex's post in the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane with
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Really? In post #1, @Vincf obtained: $$E_y(r_1, r_2) =- \frac{\sigma}{2\pi\varepsilon_0}\ln\left(\frac{r_2}{r_1}\right)$$ where ##r_1... -
PeroK replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.I interpret the standard result for the uniformly charged infinite plane as follows. If we have a large uniformly charged plate, then... -
PeroK reacted to DavidMartin's post in the thread Graduate Can a causal or time-like structure emerge without assuming a metric? with
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I’m not asking whether partial orders can model spacetime (as in causal sets), but whether they can emerge from non-order relations ? -
PeroK reacted to robphy's post in the thread Graduate Can a causal or time-like structure emerge without assuming a metric? with
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So, can you specify by what you mean by "something more primitive" than Szekeres' signal relation S which "is reflexive, but not... -
PeroK replied to the thread Undergrad Potential energy of a system of particles.It's a good idea to work this out for yourself. Take two particles of different masses at rest relative to each other. Release them and...