Thank you for your response. I don't necessarily mean that it must be physically spinning, just that there is evidently a hard connection between spin and ordinary motion/momentum. I'm sure the charge of the electron is part of this deflection as well, but it's the spin that is determining the...
The spin (up or down) determins the direction of deflection of the massive electron, thus a connection between spin and common motion, force, momentum etc.
Thank you.
I understand the concept this far. Now what's needed is a clear bridge between the electron's spin and actual, tangible motion. I believe the electron's spin will cause the electron to be deflected if it is shot through an external magnetic field, yes?
Fair enough. That's helpful. Still though, I believe that a complete understanding of these problems would allow for an answer that tends towards tangability with basic English.