Surface second harmonic generation — is a method for probing interfaces in atomic and molecular systems. In second harmonic generation (SHG), the light frequency is doubled, essentially converting two photons of the original beam of energy E into a single photon of energy 2 E as it… … Wikipedia
Coordinate — Co*[ o]r di*nate, n. 1. A thing of the same rank with another thing; one two or more persons or things of equal rank, authority, or importance. [1913 Webster] It has neither co[ o]rdinate nor analogon; it is absolutely one. Coleridge. [1913… … The Collaborative International Dictionary of English
Coordinate-measuring machine — A coordinate measuring machine (CMM) is a device for measuring the physical geometrical characteristics of an object. This machine may be manually controlled by an operator or it may be computer controlled. Measurements are defined by a probe… … Wikipedia
Coordinate time — In the theory of relativity, it is convenient to express results in terms of a spacetime coordinate system relative to an implied observer. In many (but not all) coordinate systems, an event is specified by one time coordinate and three spatial… … Wikipedia
Surface — This article discusses surfaces from the point of view of topology. For other uses, see Differential geometry of surfaces, algebraic surface, and Surface (disambiguation). An open surface with X , Y , and Z contours shown. In mathematics,… … Wikipedia
Coordinate system — For geographical coordinates on Wikipedia, see Wikipedia:WikiProject Geographical coordinates. In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of a point or other… … Wikipedia
Coordinate surface — The coordinate surfaces of a three dimensional coordinate system are the surfaces on which a particular coordinate of the system is constant, while the coordinate lines are the curves along which two of the coordinates of the system are constant … Wikipedia
Coordinate conditions — In general relativity, the laws of physics can be expressed in a generally covariant form. In other words, the real world does not care about our coordinate systems. However, it is often useful to fix upon a particular coordinate system, in order … Wikipedia
coordinate — I. adjective Etymology: probably back formation from coordination Date: 1641 1. a. equal in rank, quality, or significance b. being of equal rank in a sentence < coordinate clauses > 2. relating to or marked by coordination 3. a. being a… … New Collegiate Dictionary
coordinate — {{11}}coordinate (adj.) 1640s, of the same order, from M.L. coordinatus, pp. of coordinare to set in order, arrange (see COORDINATION (Cf. coordination)). Meaning involving coordination is from 1769. Related: Coordinance. {{12}}coordinate (n.)… … Etymology dictionary