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Dioptrique. La dioptrique (in English Dioptrique, Optics, or Dioptrics) is a short treatise by René Descartes. It was published in 1637 included in one of the Essays written with Discourse on the Method. In this essay Descartes uses various models to understand the properties of light. This essay is known as Descartes' greatest contribution to ...
Doubling the cube, also known as the Delian problem, is an ancient [a] [1] : 9 geometric problem. Given the edge of a cube, the problem requires the construction of the edge of a second cube whose volume is double that of the first. As with the related problems of squaring the circle and trisecting the angle, doubling the cube is now known to ...
Herbert C. Kraft. Herbert C. Kraft in the field, c. 1960's. Herbert Clemens Kraft (1927–2000) was an archaeologist from New Jersey, specializing in prehistory. He wrote numerous books about archaeology in New Jersey, the Lenape and the Paleo-indians of New Jersey, as well as over 170 articles in his career.
Roger W. Jones Award for Executive Leadership (1979) Christopher Columbus Kraft Jr. (February 28, 1924 – July 22, 2019) was an American aerospace and NASA engineer who was instrumental in establishing the agency's Mission Control Center and shaping its organization and culture. His protégé Glynn Lunney said in 1998: "the Control Center ...
Alma mater. Charles University, Prague. Scientific career. Fields. Paleontology. Jaroslav Kraft, CSc. (April 9, 1940 – January 10, 2007) was an internationally recognised Czech palaeontologist and a prominent specialist in Ordovician dendroid graptolites .
Victor Kraft (4 July 1880 – 3 January 1975) was an Austrian philosopher. He is best known for being a member of the Vienna Circle. Early life and education.
Square root. Notation for the (principal) square root of x. For example, √ 25 = 5, since 25 = 5 ⋅ 5, or 52 (5 squared). In mathematics, a square root of a number x is a number y such that ; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1] For example, 4 and −4 are square roots of 16 ...
6× Super Bowl champion ( XXXVI, XXXVIII, XXXIX, XLIX, LI, LIII) Jonathan A. Kraft (born March 4, 1964) is an American businessman. He is president of The Kraft Group, the holding company of the Kraft family's business interests. He is also the president of the New England Patriots and investor-operator of the New England Revolution.