@max - As you have probably figured out, I have quite got the reply protocol down yet, but I'm starting to figure it out. Hopeful which reply goes to who, of replies I have posted so far, is apparent from my responses
I can always count on you to keep me honest David. The reason you don't see a double spot is that the deflection due to the dipole momemnt is miniscule compare to the deflection due to the moving charge. The original Stern-Gerlach experiment to measure the dipole momemnt used neutral silver ions to avoid the moving charge deflection completely swamping the dipole deflection.
So I confess what I proposed is more of a thought experiment than a realistic experiment. A better example might have used neutrons, but that's a bit further removed from everyday experience
@ccorbj: If readers want to send me Physics topics, I will try to oblige!
Well, even though I've read "QED: The Strange Theory of Light and Matter" by Richard Feynman, I still cannot wrap my brain around how mirrors work -- from simple things like why is the angle of incidence equal to the angle of reflection, all the way up to how the photons "bounce" off the atoms forming the mirror withpout being scattered to the four winds, as it were.
@Bernard.... "More exotically, spin is one of the primary mechanisms to create entangled states..."
It's certainly done that with my mind :-)
> "Shoot a beam of electrons through a magnetic field with a gradient, and the beam will bend thanks to the influence of the field on a moving charge. Furthermore, it will also split into two sub-beams....."
The first part of that is fair enough - it's how the old CRT oscilloscopes and TVs used to work. But splitting into 2 sub-beams - how come that does not cause a double spot on your scope?
@Bernard: Lay a plate flat on your hand, and then rotate it under your arm, over your head, and back down to the original position, all the time keeping the plate flat. If you watch carefully, you will notice that you rotated the plate through 720 degrees.