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bio website marty-green.blogspot.com
location Canada
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visits member for 4 years
seen 9 hours ago

Mar
30
comment Why do lines in atomic spectra have thickness? (Bohr's Model)
Thanks for the edit, Noah. And thanks for my first lesson in LATEX. Now I know that the code for 10^(-8) is DOLLARSIGN\ 10^{-8}DOLLARSIGN (with actual $'s instead of DOLLARSIGN).
Mar
30
awarded  Custodian
Mar
30
reviewed Approve Why do lines in atomic spectra have thickness? (Bohr's Model)
Mar
29
answered Why do lines in atomic spectra have thickness? (Bohr's Model)
Mar
21
comment Can quantum fluctuation happen outside space-time?
It's easy to make fun of an outsider who asks this kind of question. But it seems to me that serious physicists are responsible for the claim that "the big bang was the result of some kind of quantum fluctuation". If that's the kind of statement that legitimate physics deals with, then I really don't see what's wrong with the question. Because it's about as meaningful as the statement which inspired it.
Mar
20
comment How wrong are the classical Maxwell's equations (as compared to QED)?
Thanks, @FraSchelle. What is especially baffling is that more than 100 years into the new paradigm that is quantum physics, I am still considered a kook on the internet for drawing attention to these obvious and readily verifiable truths.
Mar
11
comment How wrong are the classical Maxwell's equations (as compared to QED)?
You didn't answer my question, Jerry. Am I right about the black body radiation, the atomic spectra, and the laser?
Mar
11
comment How wrong are the classical Maxwell's equations (as compared to QED)?
Oh come on. You get the wrong answer when you apply Maxwell's Equations to orbiting electron because you're using the wrong model for the hydrogen atom. There's nothing wrong with Maxwell's Equations. When you apply them to the Schroedinger atom instead of the incorrect Bohr atom, you get the right answer for the spectral lines and the linewidths.
Mar
11
comment How wrong are the classical Maxwell's equations (as compared to QED)?
I think in the first paragraph where I said you don't need to quantize the energy, I meant the e-m field energy. You still get discrete energy levels in the mechanical system when you solve the Schroedinger equation. Those states have stationary charge distributions. But any system in a superposition of those discrete states will have an oscillating charge density, and that oscillating charge emits and aborbs radiation strictly according to classical antenna theory.
Mar
10
comment How wrong are the classical Maxwell's equations (as compared to QED)?
So are you agreeing that I'm right about the black body spectrum, the atomic spectra, and the laser?
Mar
10
answered How wrong are the classical Maxwell's equations (as compared to QED)?
Feb
18
comment Calculate the approximate number of conduction electrons
I agreed with Sofia that JohnRennie's comment was a good answer...it helped ME understand how to do the question. I actually thought he put too much detail in the actual answer which he subsequently posted. I think he could have literally put his comment down as an answer, because it's a homework question and it points the way to the solution.
Feb
7
answered How much of the energy of a car is required for overcoming air resistance?
Jan
28
answered The storage of kinetic energy in a flywhell?
Jan
19
comment Some applications of the Einstein-Podolsky-Rosen (EPR) paradox?
You should know that I suffer from a low-level personality disorder which compels me to disagree with authority figures. Recently a Provincial Court judge has upheld the University of Winnipeg's decision to bar me from the campus because of my "single-minded determinedness to demonstrate that (my) point of view is the superior one". You can read the full decision here (quoted passage from paragraphs 46-50): canlii.org/en/mb/mbpc/doc/2014/2014mbpc42/2014mbpc42.html
Jan
18
comment Some applications of the Einstein-Podolsky-Rosen (EPR) paradox?
But your professional physicists DID get it wrong. They show the particles shotting out of the block along opposite trajectories, towards distant detectors. You already pointed out that they should have had submicroscopic detectors in the interstitial spaces between the uranium atoms (!). That's not what they're showing in their picture.
Jan
16
comment Some applications of the Einstein-Podolsky-Rosen (EPR) paradox?
And yes, I think physicists are extremely sloppy in this kind of thing. Like the authors of that paper you referred me to who used exactly my setup of an example of producing entangled pairs. It only works for isolated atoms, not a block. They forgot to take into account the momentum absorbed by the uranium sample.
Jan
16
comment Some applications of the Einstein-Podolsky-Rosen (EPR) paradox?
I appreciate your interest in my opinion, but I don't think I could have been more clear in my last statement: you should be suspicious of highly contrived measurement proposals. Surely you've read Feynmann's story of how people proposed different methods of measuring which slit the electron went through (he was drawing on the extended correspondence between Bohr and Einstein on this question) only to show that all such efforts were ultimately frustrated by the uncertainty principle.
Jan
16
answered How was it proven that a quantum entanglement measurement of particle A, affects properties of particle B
Jan
14
comment Physical meaning of linear combination of possible states in infinite well
And don't forget that all the states you mix together have a time component...they are multiplied by exp(jwt), where w depends on the energy level. So the pattern is changing with time as the relative phases move with respect to one another.