PeroK's latest activity
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PeroK reacted to sophiecentaur's post in the thread I Is calling fictitious forces "not real" just about terminology? with
Like.
Ditto. Did you actually mean post #36? I'm talking about regular people using regular methods of solving and discussing mechanical... -
PeroK replied to the thread I There are only finitely many primes.There are two slightly different versions of the Euclid proof. If we assume that we have all the finitely many prime numbers, then the...
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It is not always a prime, but any prime divisor of it will be different from the ones you used.
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You only have ##7\cdot 11+1=78=6\cdot 13 \,|\,78 =7\cdot 11+1.## ##78## isn't the new prime, but it contains one, ##13,## that has not...
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@DmitryS you have made the same error multiple times now, and have persisted in it despite repeated corrections. Enough is enough. The...
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Well, you have claimed counterfactual things (e.g., that aberration does not apply) multiple times in this thread, so we do need to...
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PeroK reacted to Herman Trivilino's post in the thread I The Einstein Clock aka Light Clock with
Sad.
What is the reason you are studying this paper? Are you trying to understand the physics? Or are you trying to understand the physics... -
Yes, there is a problem. The problem is here: That is false. The source of light is current and charge densities, as described by...
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PeroK reacted to PeterDonis's post in the thread A Strong Progenitor Age Bias in Supernova Cosmology with
Wow.
The thread title is the first part of the title of a paper published just today [1]. Here is the abstract: [1]... -
PeroK replied to the thread I The Einstein Clock aka Light Clock.PS note that it is the speed of light that is independent of the motion of the source. Not the velocity of light, which is a vector and...
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PeroK replied to the thread I The Einstein Clock aka Light Clock.There is no problem. In the first case, all emissions were in the direction of relative motion of the reference frames. In the second...
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LLMs and AIs have a bad reputation at PF, and I share this opinion. I have seen too much nonsense they produced, and too many...
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PeroK replied to the thread I Conservation of angular momentum in the iceskater example.There are two aspects to this question. If we accept the conservation of AM (angular momentum), then it is a simple calculation. You...
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PeroK replied to the thread I Is calling fictitious forces "not real" just about terminology?.I accept the general point, but I don't accept that "inertial" or "pseudoforce" make things any clearer than "fictitious" or "illusory"...
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PeroK replied to the thread I Is calling fictitious forces "not real" just about terminology?.The problem exists for people who don't grasp the concept. Illusory forces would do just as well. Science is not about what words...
