grid origin

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• grid — ► NOUN 1) a framework of spaced bars that are parallel to or cross each other. 2) a network of lines that cross each other to form a series of squares or rectangles. 3) a network of cables or pipes for distributing power, especially high voltage… …   English terms dictionary

• grid — noun 1》 a framework of spaced bars that are parallel to or cross each other. 2》 a network of lines that cross each other to form a series of squares or rectangles.     ↘a numbered grid on a map that enables a place to be precisely located. 3》 a… …   English new terms dictionary

• Grid computing — is a term referring to the combination of computer resources from multiple administrative domains to reach a common goal. The grid can be thought of as a distributed system with non interactive workloads that involve a large number of files. What …   Wikipedia

• grid — [grıd] n [Date: 1800 1900; Origin: gridiron] 1.) a metal frame with bars across it →↑cattle grid 2.) a pattern of straight lines that cross each other and form squares ▪ Its streets were laid out in a grid pattern. 3.) a set of numbered lines… …   Dictionary of contemporary English

• Grid reference — A typical map displaying grid reference Grid references define locations on maps using Cartesian coordinates. Grid lines on maps define the coordinate system, and are numbered to provide a unique reference to features. Grid systems vary, but the… …   Wikipedia

• Origin of AIDS — False color scanning electron micrograph of HIV 1, in green, budding from cultured lymphocyte. AIDS is caused by the Human immunodeficiency virus (HIV), which originated in non human primates in Sub Saharan Africa and was transferred to humans… …   Wikipedia

• grid north —    The direction of a north south grid line on a map. Except for the north south grid line through the point of origin of the grid, it will differ slightly from true north [25] …   Lexicon of Cave and Karst Terminology

• Ordnance Survey National Grid — For the electricity network, see National Grid (Great Britain). Geodesy Fundamentals …   Wikipedia

• British national grid reference system — The British national grid reference system is a system of geographic grid references commonly used in Great Britain, different from using latitude and longitude.The Ordnance Survey (OS) devised the national grid reference system, and it is… …   Wikipedia

• Irish grid reference system — The Irish grid reference system is a system of geographic grid references commonly used in Ireland (both Northern Ireland and the Republic of Ireland). The Irish grid overlaps the British grid.UsageIn general, neither Ireland nor Great Britain… …   Wikipedia

• AIDS origin — HIV, the infectious agent that causes AIDS, is thought to have originated in non human primates in sub Saharan Africa and to have been transferred to humans during the 20th century.Two species of HIV infect humans: HIV 1 and HIV 2. HIV 2 may have …   Wikipedia