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I have been studying that electrons have quantum number called spin quantum number(s), this number can have either +1/2 or -1/2 value. If s=+1/2, the spin is clockwise and if s=-1/2, the spin is anti clockwise about it's imaginary axis. But, I am facing some problems now with this concept, the problems are, photon have 1-spin, another recently discovered sub-atomic particle having spin 3 (para. 7), how physicists explain these spin?