fast-moving situation
81quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …
82Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
83Natural environment — This article is about the environment. For other uses, see Environment (disambiguation). See also: Nature Land management policies have been developed to preserve the natural characteristics of Hopetoun Falls, Australia while allowing ample… …
84Project Grudge — was a short lived project by the U.S. Air Force to investigate unidentified flying objects (UFOs). Grudge succeeded Project Sign in February, 1949, and was then followed by Project Blue Book. The project formally ended in December 1949, but… …
85migration — migrational, adj. /muy gray sheuhn/, n. 1. the process or act of migrating. 2. a migratory movement: preparations for the migration. 3. a number or body of persons or animals migrating together. 4. Chem. a movement or change of position of atoms… …
86Social behaviour in animals — Introduction actions of animals living in communities. Such behaviour may include the feeding of the young, the building of shelters, or the guarding of territory. General characteristics Social behaviour (Social behaviour in animals) …
87Water — • Water was much safer in olden times, but now it can contain poison and parasites (giardia and hepatitis). The best water is fast moving and at high elevations, and away from human habitation. Water should always be clear, never discolored or …
The writer's dictionary of science fiction, fantasy, horror and mythology
88Double bass — Contrabass redirects here. For other uses, see Contrabass (disambiguation). Not to be confused with Acoustic bass guitar. For the technique used in percussion, see Double bass drum. Double Bass Side and front views of a modern double bass with a… …
892010 eruptions of Mount Merapi — Mount Merapi Gunung Merapi Merapi, July 2005 Elevation …
90Neutrino — For other uses, see Neutrino (disambiguation). Neutrino/Antineutrino The first use of a hydrogen bubble chamber to detect neutrinos, on November 13, 1970. A neutrino hit a proton in a hydrogen atom. The collision occurred at the point where three …
