PeroK's latest activity
-
PeroK replied to the thread High School Mass & energy increments a la e = mc^2.The mass of a system in QFT includes all the internal binding and kinetic energies. Note that both an atom and even a proton are... -
PeroK reacted to Ibix's post in the thread High School Mass & energy increments a la e = mc^2 with
Like.
I think the point is that an electron in free space, an electron in an atom ground state, and an electron in an excited state are three... -
PeroK replied to the thread High School Mass & energy increments a la e = mc^2.I understand that. But, your reasoning is based on the faulty premises that I tried to explain. It cannot be due to additional...
-
PeroK replied to the thread High School Mass & energy increments a la e = mc^2.You are missing the key point that an excited atom has less mass that the sum of its constituent parts. You are not looking for extra...
-
PeroK replied to the thread How far will we let AI control us?.It's difficult to talk about AI, beyond the technical level, without becoming political. It feels like this tool has been developed at...
-
per wiki; "Despite having almost no formal training in pure mathematics..." Have you watched the movie? It's available for free at...
-
Modern Ramanujan would certainly know proper maths. If not, he would not be modern Ramanujan.
-
PeroK replied to the thread High School Mass & energy increments a la e = mc^2.The extra mass of the atom is precisely the extra potential and kinetic energy of the orbital. Note that this total mass of a hydrogen...
-
PeroK reacted to fresh_42's post in the thread Undergrad Erroneously finding discrepancy in transpose rule with Like.
##\mathbb{C}\not\cong\mathbb{R}^2## The complex numbers are a field; the complex plane is not a field. If you want to identify them...
-
A lot of complex analysis books are super rigorous and meant for mathematicians rather than physics students. A good applied text is the...
-
If you haven't mastered differential, integral and multivariate calculus at the freshman level, then that should be your focus. If you...
-
CAlculus is typically learned before complex... So calculus.
-
PeroK reacted to Sagittarius A-Star's post in the thread Undergrad Is this another "paradox" or a veritasium mistake? with Like.
In theses notes is also mentioned, that Johann Georg von Soldner calculated the gravitational deflection of light as it passes the sun...
-
PeroK replied to the thread RIP Daniel Kleppner (1932-2025).Classical Mechanics by Kleppner and Kolenkow was one of the first physics books I studied. It was very much my style of book. I spent...
-
Dan was my PhD advisor. I learned a lot from him. He was a blessing to me.
