In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles, composite particles, and atomic nuclei. Spin is one of two types of angular momentum in quantum mechanics, the other being orbital angular momentum. The orbital angular momentum operator is the quantum-mechanical counterpart to the classical angular momentum of orbital revolution: it arises when a particle executes a rotating or twisting trajectory. The existence of spin angu
The Famous Orca Fishing Boat from the Movie Jaws - A detailed model. Full Playlist: http://www.youtube.com/playlist?list=...
The Orca or Killer Whale (Orcinus orca) is the largest species of the oceanic dophins. Males normally grow from 20â25 ft long and weigh in excess of 6 tons; it has been reported that especially large males have reached nearer 8 tons. Females are smaller, growing from 18â22 ft and weigh about 5 tons.