definite metric
111Geometric algebra — In mathematical physics, a geometric algebra is a multilinear algebra described technically as a Clifford algebra over a real vector space equipped with a non degenerate quadratic form. Informally, a geometric algebra is a Clifford algebra that… …
112Mass — This article is about the scientific concept. For the substance of which all physical objects consist, see Matter. For other uses, see Mass (disambiguation). Classical mechanics …
113Margaret Mead — Born December 16, 1901(1901 12 16) Philadelphia, Pennsylvania Died November 15, 1978(1978 11 15) …
114Meaning of life — This article is about the philosophical concept. For other uses, see Meaning of life (disambiguation). Where Do We Come From? What Are We? Where Are We Going? One of Post Impressionist Paul Gauguin s most famous paintings. The meaning of life… …
115Physical constant — A physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time. It can be contrasted with a mathematical constant, which is a fixed numerical value but does not directly involve any… …
116Particle in a box — In physics, the particle in a box (also known as the infinite potential well or the infinite square well) is a problem consisting of a single particle inside of an infinitely deep potential well, from which it cannot escape, and which loses no… …
117Time travel — This article details time travel itself. For other uses, see Time Traveler. Time travel is the concept of moving between different moments in time in a manner analogous to moving between different points in space, either sending objects (or in… …
118Vector space — This article is about linear (vector) spaces. For the structure in incidence geometry, see Linear space (geometry). Vector addition and scalar multiplication: a vector v (blue) is added to another vector w (red, upper illustration). Below, w is… …
119Rice — For other uses, see Rice (disambiguation). Oryza sativa, commonly known as Asian rice. Rice, white, long grain vegetable, raw Nutritional value per 100 g (3.5 oz) …
120Hyperreal number — *R redirects here. For R*, see Rockstar Games. The system of hyperreal numbers represents a rigorous method of treating the infinite and infinitesimal quantities. The hyperreals, or nonstandard reals, *R, are an extension of the real numbers R… …
