reference+ground

См. также в других словарях:

• Ground plane — In electrical engineering, a ground plane is an electrically conductive surface. Radio antenna theory In telecommunication, a ground plane structure or relationship exists between the antenna and another object, where the only structure of the… …   Wikipedia

• Ground glass — is glass whose surface has been ground to produce a flat but rough (matte) finish. A sheet of ground glass is used for the manual focusing of both still and motion picture cameras.Some cameras have no separate viewfinder, but instead use a piece… …   Wikipedia

• Ground squirrel — Ground squirrels Temporal range: Early Oligocene to Recent California ground squirrel (Spermophilus beecheyi) in the man made rocky shoreline of the Berkeley Marina. The numerous crevices offer safety and shelter …   Wikipedia

• Ground sloth — Ground sloths Temporal range: Oligocene Holocene Harlan s Ground Sloth (Paramylodon harlani), a mylodontid Scientific classification …   Wikipedia

• ground — ground1 [ground] n. [ME grund < OE, ground, bottom, akin to Ger grund, ON grunnr: for IE base see GRIND] 1. a) Obs. the lowest part, base, or bottom of anything b) the bottom of a body of water 2. the surface of the earth, specif. the solid… …   English World dictionary

• Ground Control (video game) — Ground Control Developer(s) Massive Entertainment Publisher(s) Sierra On Line …   Wikipedia

• ground zero — 1946, originally with reference to atomic blasts. In reference to the Sept. 11, 2001, terrorist attack on New York, it was in use by Sept. 13 …   Etymology dictionary

• Ground Zero Man — is a science fiction novel by Bob Shaw, first published in 1971, and then revised as The Peace Machine in 1985.The plot follows the main character, Lucas Hutchman, an undistinguished mathematician , who invents a machine that may detonate… …   Wikipedia

• Ground (electricity) — In electrical engineering, ground or earth may be the reference point in an electrical circuit from which other voltages are measured, or a common return path for electric current, or a direct physical connection to the Earth. A typical earthing… …   Wikipedia

• Ground effect in cars — For another similarly named effect relating to aircraft, see Ground effect in aircraft. Ground effect is term applied to a series of aerodynamic effects used in car design, which has been exploited to create downforce, particularly in racing cars …   Wikipedia

• Ground zero — [ Hiroshima Prefectural Industrial Promotion Hall was only 150 m from the hypocenter, or ground zero, of the atomic bomb explosion over Hiroshima.] The term Ground Zero may be used to describe the point on the earth s surface where an explosion… …   Wikipedia