1,006 reputation
410
bio website marty-green.blogspot.com
location Canada
age
visits member for 3 years
seen 2 hours ago

1d
awarded  Yearling
Apr
9
answered When a wire is stretched by a load, is there any change in its volume?
Mar
23
answered Total angular momentum in a full shell
Mar
21
comment When combining three spin $\frac{1}{2}$ particles what are the corresponding states?
I didn't read your question carefully when I posted my answer (thanks for the upvote) but now I notice you list five states, including one with m=0. I'm quite sure that's wrong...there's always going to be an odd half-spin left over with three electrons.
Mar
21
answered When combining three spin $\frac{1}{2}$ particles what are the corresponding states?
Mar
18
answered Creating electricity from mains water pressure.
Mar
10
comment What is the Bremsstrahlung or dipole radiation mechanism involved in the emission of radiation by the rotating or moving charge?
Of course you're right...my bad.
Feb
8
answered What is the Bremsstrahlung or dipole radiation mechanism involved in the emission of radiation by the rotating or moving charge?
Feb
8
comment Which electron gets which energy level?
We can count the total number of electrons in an atom; but we can't EXACTLY count how many are an "orbital", because the idea of discrete orbitals is only a good approximation that helps us do chemistry.There really is just one big wave function for all the electrons in the atom.The common explanation of the Pauli principle makes it look like we just put two electrons in each orbital, but the correct technical definition of the Pauli principle is that if we reverse any two "electrons" the 3n-dimensional wave function, we get the same wave function back again except with a negative sign.
Feb
7
answered Which electron gets which energy level?
Jan
4
comment Why does a wavefunction collapse when observation takes place?
I'd like to know what people consider to be an actual example of wave function collapse. I've looked for a "top ten" list of examples and I don't think there is one on the internet.
Sep
17
comment Waves produced by a mass of water on the calm sea surface
@Anna Oh come one now.
Sep
16
answered Is Dr Quantum's Double Slit Experiment video scientifically accurate?
Sep
9
comment Are the air particles in today's wind on earth (more or less) the same as the air 2/3 billion years ago?
Excellent answer. Slightly off topic, I have read that on average, every other nitrogen atom in your body has been through the Haber process.
Sep
9
answered Compton scattering vs. photoelectric effect
Sep
1
answered What is the interpretation of the Chern-Simons electromagnetic spin density?
Aug
3
comment Zeta regularization and Renormalization group
Thanks, Jose. I think this is the first time I've been picked as the winning answer. I don't know what zeta regularization is but I like to create a chain of physical logic to justify the math. That's the only way I have confidence that the math is giving me the right answer.
Aug
3
answered Zeta regularization and Renormalization group
Aug
3
answered How do you calculate the time to emission of an electron from a metal given the incident radiation?
Jun
17
comment Can the photoelectric effect be explained without photons?
Ben, it is hard to see how you can be absolutely sure that some of the energy for that ionization didn't come from the 1200-VDC power supply. You should read my article on Quantum Siphoning, linked elsewhere on this page by Helder Velez, where I explain how those kinds of processes can work. In my article I explain how it works for the case of the photographic plate, but I think the Geiger Counter is the same in principle.