purely
111Point group — The Bauhinia blakeana flower on the Hong Kong flag has C5 symmetry; the star on each petal has D5 symmetry. In geometry, a point group is a group of geometric symmetries (isometries) that keep at least one point fixed. Point groups can exist in a …
112Pp-wave spacetime — In general relativity, the pp wave spacetimes, or pp waves for short, are an important family of exact solutions of Einstein s field equation. These solutions model radiation moving at the speed of light. This radiation may consist of:*… …
113AC power — This article deals with power in AC systems. See Mains electricity for information on utility supplied AC power. Usually hidden from the unaided eye, the blinking of (non incandescent) lighting powered by AC mains is revealed in this motion… …
114Henry Corbin — Infobox Philosopher region = Western Philosophy era = 20th century philosophy color = #B0C4DE name = Henry Corbin birth = April 14, 1903 Paris, France death = death date and age|1978|19|7|1903|4|14 Paris, France school tradition = School of… …
115Elaine Hamilton-O'Neal — Elaine Hamilton O Neal, the American artist, was born Elaine Hamilton in 1920 in Catonsville, Maryland, near Baltimore. [Please note: the primary source of information for this article is the [http://www.marylandartsource.org/artists/detail… …
116The Nature of Rationality — is an exploration of practical rationality written by Robert Nozick and published in 1993. It views human rationality as an evolutionary adaptation. Its delimited purpose and function may be responsible for biases and blind spots, possibly… …
117Semimartingale — In probability theory, a real valued process X is called a semimartingale if it can be decomposed as the sum of a local martingale and an adapted finite variation process.Semimartingales are good integrators , forming the largest class of… …
118Charles Dodge (composer) — For the American Civil War General of the same name, see Charles C. Dodge. Charles Dodge (b. Ames, Iowa, June 5, 1942) is an American composer best known for his electronic music, specifically his computer music.[1] He is a former student of… …
119History of the Church-Turing thesis — This article is an extension of the history of the Church Turing thesis.The debate and discovery of the meaning of computation and recursion has been long and contentious. This article provides detail of that debate and discovery from Peano s… …
120algebra — /al jeuh breuh/, n. 1. the branch of mathematics that deals with general statements of relations, utilizing letters and other symbols to represent specific sets of numbers, values, vectors, etc., in the description of such relations. 2. any of… …
