DUALITY • E-FREE TRANSLATION.COM • Definition of Duality

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Duality

noun

Being twofold; a classification into two opposed parts or subclasses. Synonym: dichotomy.

(physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory. Synonym: wave-particle duality.

(geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry.

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"Duality" Quotes from Famous Books

... twelve years old. This is my real self. To my own mind I am still a little girl with short dresses and a bunch of curls. For some reason my idea of self has never advanced beyond this point. The long dress and the hair piled high will never seem natural. Sometimes I enjoy this duality and again I do not. Sometimes the two parts mingle delightfully together, again they wrangle atrociously, while I (there seems to be a third part of me) sit off and watch ...

— Introduction to the Science of Sociology • Robert E. Park

... Crazed by this duality of life, I first read Dr. Wigan on the Duality of the Brain, hoping that I could train one side of my head to do these outside jobs, and the other to do my intimate and real duties. For Richard Greenough once told me that, in studying for the statue ...

— The Best American Humorous Short Stories • Various

... few examples of duality taken from nature. The current of electricity is polarised into a positive and a negative current. It is the same with the magnet; though you break a bar into a hundred pieces, you bring into being a hundred small magnets, each possessing ...

— Reincarnation - A Study in Human Evolution • Th. Pascal

... characterized as the point of fusion of the two sides; and all structures or organs which range this common centre are either symmetrically azygos, or symmetrically duplex. The azygos organ presents as a symmetrical unity, and the duplex organ as a symmetrical duality. The surgical anatomist takes a studious observation of this law of symmetry; and knowing it to be one of general and almost unexceptional occurrence, he ...

— Surgical Anatomy • Joseph Maclise

... the spear is through the side of his isolation. His adolescence saw him crucified into sex, Doomed, in the long crucifixion of desire, to seek his consummation beyond himself. Divided into passionate duality, He, so finished and immune, now broken into desirous fragmentariness, Doomed to make an intolerable fool of himself In his effort ...

— Tortoises • D. H. Lawrence

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