What is the exact value of the spin of a particle with a 'spin' of 'one'? In units of Nms (Newton-meter-second)?
And does a boson really have a spin of exactly one, or has that been 'normalized'?
Lastly, if a spin-1/2 particle has to fully rotate twice to return to its original 'position' or 'value', does that mean a spin-2 particle only has to rotate 180-degrees to return to its original 'position' (meaning spin-up or spin-down, I presume?)
On Wikipedia, it gives a very brief description of how spin is calculated, in Nms, then says but, 'this is not the full computation of this value'. No further explanation or computation of spin in Nms is given in the rest of the article... Not that I've been able to find...