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=...
msn back to msn home entertainment. Orca whales filmed by drone in Tromso, Norway. A stunning video has emerged of a pod of orcas filmed by a drone in Tromso, Norway. The footage, captured last week by photographer Philip Bloom, shows the whales swimming in a fjord in the north of the country. The drone let me get very close to them and move with them, Bloom wrote online.