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=...
Orcas, or killer whales, are photographed at Unimak Island in the eastern Aleutian Islands. Orcas, or killer whales, are photographed at Unimak Island in the eastern Aleutian Islands. There are more interesting places to see orcas, or killer whales, than inside a theme park.