1,186 reputation
411
bio website marty-green.blogspot.com
location Canada
age
visits member for 3 years, 6 months
seen 1 hour ago

Jun
2
comment Can nuclear transmutation be observed in real time?
People talk about doing the double slit experiment "one electron at a time", but all they mean is that the beam intensity is so low that the detection events are far apart. There is still no machine that shoots out single electrons at will. I talk about this in an essay I posted a few years ago on the FQXI site: "There Are No Pea-Shooters For Photons". fqxi.org/data/essay-contest-files/…
Jun
2
answered Can nuclear transmutation be observed in real time?
May
29
suggested suggested edit on Applications of Calculus 2 to Physics
May
28
answered Quantum mechanics: How do the atoms in an electronic circuit enter a smaller orbit on the filament of an incandescent light bulb?
May
27
comment Intuition/derivation behind the probability current definition
I pity the fool who thinks he can out-umlaut the Germans.
May
25
comment Interesting relationship between diffraction and Heisenberg's Uncertainty Principle?
you are so right. I don't know what their problem is.
May
25
answered In this particular problem: Is the mass of the system the mass of the person?
May
13
comment Do ionisation of atoms release photons?
Actually, if hydrogen is a typical example, the UV transitions are the ones that end up in the ground state.
Apr
23
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.