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, the largest species of the dolphin family, can extend to 32 feet long and up to 6 tons in weight. When not at risk or hunting, dolphins travel at a leisurely speed of 10 kilometers per hour (kmh), which they can easily maintain for long distances. Orcas are slightly slower, traveling at only 6 or 7 kmh.