# Spin actually is?

by EIRE2003
Tags: spin
 P: 265 One way to think about spin is the following: when a particle has spin $s$, that means that when you rotate the particle over $360/s$ degrees the particle will look the same. So, spin 1 particles have to be rotated 360 degrees, but spin 2 particles have a higher symmetry and need only to be rotated over 180 degrees. Interestingly, there are also particles with spin 1/2 (such as the electron). That means that they do not look the same when you rotate them over 360 degrees! Only when rotated over twice 360 degrees will such a particle look the same. Quantum-fun...