Hello; I am having trouble understanding what this phenomenon is. The spin of an electron is 1/2 - but I don't understand what this is trying to say. What is 1/2? I know the electron isn't actually 'spinning'... I've heard the term "it's a kind of intrinsic angular momentum" a lot, but that doesn't really help. What is the difference between a spin of 1 and a spin of 1/2? What does it do? Why is it important? Thanks.