The angular momentum of a spinning bucket of water has approximately nothing to do with the intrinsic angular momentum of the particles, though.  Statistically, we&#x27;d expect all of the intrinsic spins of the electrons and quarks to cancel out entirely.<p>Rather, the angular momentum is due to the fact that the straight-line motion of all the atoms on the left side of the bucket is opposite in direction to the straight-line motions of all the atoms on the right side of the bucket.  (With respect to the reference frame of the center of gravity of the bucket, etc, etc.)