distance-measuring technique

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• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• Measuring principle — A sender emits a wave which is scattered by an object. The backscattered part of the wave reaches a receiver: The measurement principle of sonar and radar devices …   Wikipedia

• technique — The manner of performance, or the details, of any surgical operation, experiment, or mechanical act. SEE ALSO: method, operation, procedure. SYN: technic. [Fr., fr. G. technikos, relating to techne, art, skill] airbrasive t. a method of grinding …   Medical dictionary

• Potentiometer (measuring instrument) — A potentiometer is an instrument for measuring the potential (voltage) in a circuit. Before the introduction of the moving coil and digital volt meters, potentiometers were used in measuring voltage, hence the meter part of their name. The method …   Wikipedia

• Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… …   Wikipedia

• Extragalactic distance scale — The extragalactic distance scale is a series of techniques used today by astronomers to determine the distance of cosmological bodies (beyond our own galaxy) not easily obtained with traditional methods. Some procedures utilize properties of… …   Wikipedia

• Bogardus social distance scale — A scaling technique for measuring social distance, pioneered by Emory S. Bogardus in the 1930s, usually applied to the study of ethnic relations, social classes, and social values generally. The scale attempts to measure respondents degree of… …   Dictionary of sociology

• 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

• Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll …   Wikipedia

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• VHF omnidirectional range — This article is about the radio navigation aid. For other uses, see Vor. D VOR (Doppler VOR) ground station, co located with DME …   Wikipedia