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=...
In an interview with Science magazine, Shawn Noren, a physiologist at the University of California, Santa Cruz, said placing an orca that has spent its entire life in a sterile, concrete tank, into an ocean filled with conditions it has never experienced may affect the animal and the formerly whale free-ecosystem.