PeroK's latest activity
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Hi Guys, I'm an Engineer in the Field of Materials Science, concerned with renewable Energies. -
PeroK reacted to jedishrfu's post in the thread Hello. I'm a secondary school student with a fresh thirst for knowledge. with
Like.
Welcome to PF! The mind can play tricks on oneself. If you feel it is starting again, I would recommend you check-in with your family... -
PeroK replied to the thread Foundations A rigorous approach to learn Mathematics.The all-seeing, all-knowing Web suggested this video to me today!
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PeroK replied to the thread Product of two boosts and then two inverse boosts is rotation matrix.You could always figure it out for yourself. The Wigner rotation is essentially caused by a convention that underlies the Lorentz...
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PeroK replied to the thread Physics How to close the gap: From Independent Research to Academic Discourse.Aka "a reality check".
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An antiproton can't annihilate itself with a positron. They are not each other's antiparticle. An antiproton can "capture" a positron to...
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PeroK replied to the thread I Antiproton and positron annihilation.Generally annhiliation is between a particle and its antiparticle. The interaction between an antiproton and a positron would be...
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PeroK reacted to GlitchedGluon's post in the thread Particle Neutrino Particle Physics Book with
Informative.
You may also find useful the PDG Review of Particle Physics: https://pdg.lbl.gov/2025/html/computer_read.html In particular Section 14... -
PeroK replied to the thread I Angular Momentum Vector and Its Magnitude.In general an expected value does not itself need to be one of the possible values. For example, the expected value of a roll of a...
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PeroK replied to the thread Particle Neutrino Particle Physics Book.Is this useful? https://arxiv.org/abs/hep-ph/0510213
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PeroK replied to the thread Foundations A rigorous approach to learn Mathematics.I'm not convinced by this. Introductory books on Abstract Algebra, Number Theory and Real Analysis etc. would cover a lot of general...
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PeroK reacted to wrobel's post in the thread Foundations A rigorous approach to learn Mathematics with Like.
Actually not. Moreover in most cases it is counterproductive.
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PeroK reacted to vela's post in the thread Engineering Why wasn’t gravity included in the potential energy for this problem? with Like.
Given the method, I think you should include the potential energy due to gravity (though you should've had ##-mgx##). It feels a bit...
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PeroK replied to the thread I A question about the origin of Coulomb's law and point charge divergence.Coulomb's law breaks down for high-energy scattering. QED predicts this and presents Coulomb's law as a low-energy approximation...