How can it be that some elementary particles (like quarks) have spin equal to 1 2?

Question

Accepted Answer

Many elementary particles have a spin of 1:2 to be exact, ħ:2. For example, electrons, protons, neutrons. That's the nature of it. It's not clear what's particularly striking here.

How can it be that some elementary particles (like quarks) have spin equal to 1 2?

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