radial plane
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Radial velocity — is the velocity of an object in the direction of the line of sight (i.e. its speed straight towards you, or away from you). The light of an object with a substantial radial velocity will be subject to Doppler effect, so the frequency of the light … Wikipedia
Radial tire — (Automobiles) a motor vehicle tire in which the cords run at right angles to the plane of the tire (considered as a disk). [PJC] … The Collaborative International Dictionary of English
Radial (radio) — In radio, evenly spaced points along evenly spaced radials or lines through a common point on a map, are used to determine average elevation above mean sea level (AMSL) within a radio station s coverage area (including broadcast stations and… … Wikipedia
radial symmetry — noun A form of symmetry, arranged equally in all directions from a central point, thus any plane through the central point will divided into mirror image pieces. A circle has radial symmetry, a square does not. See Also: symmetry, bilateral… … Wiktionary
radial symmetry — Biol. a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom dwelling animals, as the sea anemone and starfish. Cf. bilateral symmetry … Universalium
radial error — As it pertains to armament delivery, it is the distance between the desired point of impact of the munition and the actual point of impact. Both are projected and measured on an imaginary plane perpendicular to the munition flight path … Aviation dictionary
radial symmetry — ra′dial sym′metry n. dvl bio a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis Compare bilateral symmetry • Etymology: 1885–90 … From formal English to slang
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
Monochromatic electromagnetic plane wave — In general relativity, the monochromatic electromagnetic plane wave spacetime is the analog of the monochromatic plane waves known from Maxwell s theory. The precise definition of the solution is a bit complicated, but very instructive. Any exact … Wikipedia
ground plane — noun : the horizontal plane of projection in perspective drawing * * * 1. (in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line. 2. Elect. a ground plate… … Useful english dictionary
ground plane — 1. (in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line. 2. Elect. a ground plate or an underground mesh of radial wires connected to a vertical antenna… … Universalium
