chemically active medium

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• Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment …   Wikipedia

• rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …   Universalium

• Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …   Universalium

• Synthetic diamond — Synthetic diamonds of various colors grown by the high pressure high temperature technique Synthetic diamond is diamond produced in a technological process; as opposed to natural diamond, which is created in geological processes. Synthetic… …   Wikipedia

• Xenon — (PronEng|ˈzɛnɒn [Xenon, entry in the Oxford English Dictionary, prepared by J. A. Simpson and E. S. C. Weiner, vol. 20, second edition, Oxford: Clarendon Press, 1989. ISBN 0 19 861232 X (vol. 20), ISBN 0 19 861186 2 (set.)] or IPAlink en|ˈziːnɒn… …   Wikipedia

• Jupiter — /jooh pi teuhr/, n. 1. Also called Jove. the supreme deity of the ancient Romans: the god of the heavens and of weather. Cf. Zeus. 2. Astron. the planet fifth in order from the sun, having an equatorial diameter of 88,729 mi. (142,796 km), a mean …   Universalium

• Laser diode — Top: a packaged laser diode shown with a penny for scale. Bottom: the laser diode chip is removed from the above package and placed on the eye of a needle for scale …   Wikipedia

• Blood glucose monitoring — is a way of testing the concentration of glucose in the blood (glycemia). It is important in the care of diabetes mellitus. A blood glucose test is performed by piercing the skin (typically, on the finger tip) to draw blood, then placing the… …   Wikipedia

• Sahara — Saharan, Saharian, adj. /seuh har euh, hair euh, hahr euh/, n. 1. a desert in N Africa, extending from the Atlantic to the Nile valley. ab. 3,500,000 sq. mi. (9,065,000 sq. km). 2. any arid waste. * * * Largest desert in the world, encompassing… …   Universalium

• Spent nuclear fuel — Spent nuclear fuel, occasionally called used nuclear fuel, is nuclear fuel that has been irradiated in a nuclear reactor (usually at a nuclear power plant) to the point where it is no longer useful in sustaining a nuclear reaction. Nuclear… …   Wikipedia

• Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …   Wikipedia