Thinking of it as different 'kinds' of spins isn't quite right. It's more akin to the direction or axis of the spin being changed, and simply measuring the spi

Thinking of it as different 'kinds' of spins isn't quite right. It's more akin to the direction or axis of the spin being changed, and simply measuring the spin along a certain access will change it: https://en.wikipedia.org/wiki/Spin_(physics)#Measurement_of_spin_along_the_x-,_y-,_or_z-axes https://en.wikipedia.org/wiki/Spin_(physics)#Measurement_of_...