map accuracy
31Decca Navigator System — D …
32Omega (navigation system) — OMEGA was the first truly global radio navigation system for aircraft, operated by the United States in cooperation with six partner nations. Contents …
33Pole of inaccessibility — Map of distance to the nearest coastline (including oceanic islands, but not lakes) with red spots marking the poles of inaccessibility of main land masses, Britain, and the Iberian Peninsula. Thin isolines are 250 km apart; thick lines… …
34Mu'a (Tongatapu) — Map of Lapaha with locations relevant to the Tuʻi Tonga dynasty. All diamonds (except the Fāʻonelua tree and the Futu ko Vuna tree and stone) indicate the location of a langi. Different authorities disagree about the exact identifications, though …
35surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …
36Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
37rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
38Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
39Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
40History of cartography — The Fra Mauro map, one of the greatest memorial of medieval cartography, was made around 1450 by the Venetian monk Fra Mauro. It is a circular world map drawn on parchment and set in a wooden frame, about two meters in diameter Cartography (from… …
