angular+length

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• Angular resolution — describes the resolving power of any image forming device such as an optical or radio telescope, a microscope, a camera, or an eye. Definition of terms Resolving power is the ability of the components of an imaging device to measure the angular… …   Wikipedia

• Angular displacement — of a body is the angle in radians (degrees, revolutions) through which a point or line has been rotated in a specified sense about a specified axis.When an object rotates about its axis, the motion cannot simply be analyzed as a particle, since… …   Wikipedia

• Angular roughshark — Conservation status Vulnerable (IU …   Wikipedia

• Angular mil — An angular mil, also mil, is a unit of angle. All versions of the angular mil are approximately the same size as a trigonometric milliradian. Contents 1 History 2 Mathematical principle 3 Use …   Wikipedia

• Angular momentum — For a generally accessible and less technical introduction to the topic, see Introduction to angular momentum. Classical mechanics Newton s Second Law …   Wikipedia

• Angular velocity — Do not confuse with angular frequency The unit for angular velocity is rad/s.In physics, the angular velocity is a vector quantity (more precisely, a pseudovector) which specifies the angular speed, and axis about which an object is rotating. The …   Wikipedia

• Angular diameter — The angular diameter or apparent size of an object as seen from a given position is the “visual diameter” of the object measured as an angle. In the vision sciences it is called the visual angle. The visual diameter is the diameter of the… …   Wikipedia

• Angular angel shark — Taxobox name = Angular angel shark image caption = status = EN | status system = IUCN3.1 trend = regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Squatiniformes familia = Squatinidae genus = Squatina …   Wikipedia

• Angular eccentricity — In the study of ellipses and related geometry, various parameters in the distortion of a circle into an ellipse are identified and employed: Aspect ratio, flattening and eccentricity. All of these parameters are ultimately trigonometric functions …   Wikipedia

• Angular distance — Distance Dis tance, n. [F. distance, L. distantia.] 1. The space between two objects; the length of a line, especially the shortest line joining two points or things that are separate; measure of separation in place. [1913 Webster] Every particle …   The Collaborative International Dictionary of English

• Angular aperture — The angular aperture of a lens is the apparent angle of the lens aperture as seen from the focal point::a = 2 arctan left( frac {D/2} {f} ight)where :f is the focal length:D is the diameter of the aperture. Relation to numerical aperture In a… …   Wikipedia