suspension compass

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• Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …   Wikipedia

• Fluxgate compass — The basic fluxgate compass is a simple electromagnetic device that employs two or more small coils of wire around a core of highly permeable magnetic material, to directly sense the direction of the horizontal component of the earth s magnetic… …   Wikipedia

• Four Great Inventions — Five major steps in papermaking, outlined by Cai Lun in AD 105 Traditional Chinese 四大發明 …   Wikipedia

• Four Great Inventions of ancient China — [ papermaking, outlined by Cai Lun in 105 AD] The Four Great Inventions of ancient China (zh tsp|t=四大發明|s=四大发明|p=sì dà fā míng, meaning four great inventions ) are four inventions that are celebrated in Chinese culture for their historical… …   Wikipedia

• List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

• Galvanometer — D Arsonval/Weston galvanometer movement with the moving coil shown in red. A galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. It is an analog electromechanical transducer that produces a rotary… …   Wikipedia

• Pontiac Grand Prix — Infobox Automobile name=Pontiac Grand Prix manufacturer=General Motors production=1962–2008 class=Personal luxury car (1962 1987) Mid size (1988 2008) successor=Pontiac G8 (US Canada) Pontiac G6 (Mexico)The Pontiac Grand Prix was an automobile… …   Wikipedia

• Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …   Wikipedia

• navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …   Universalium

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

• List of Heroes characters — From left to right: Micah, Niki, Nathan, Peter, Noah, Claire, Hiro, Mohinder, Matt, Sylar This is a list of fictional characters in the television series Heroes …   Wikipedia