When a single talks about “spin” in physics, it’s a Unique case of the final story of angular momentum. Angular momentum is by definition the “infinitesimal generator” on the motion of spatial rotations around the theory, both classically and quantum mechanically. Classically, the perform $q_1p_2-q_2p_1$ is definitely the ingredient $L_3$ https://immanuelj160jtf7.blog-eye.com/profile