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Service. Descartes at Sebastopol, during the first day's attack by the allied fleet and armies of France and England on 17 October 1854. She took part in the Crimean War, and was used to ferry wounded from Italy. On 17 October 1855, she took part in the Battle of Kinburn . She was eventually broken up in Brest in July 1867.
Descartes Highlands. Aerial photo of the Descartes Highlands with features and Apollo 16 mission traverses labeled. The Descartes Highlands is an area of lunar highlands located on the near side that served as the landing site of the American Apollo 16 mission in early 1972. The Descartes Highlands is located in the area surrounding Descartes ...
Kraft Systems, Inc., was an American electronics company based in San Diego County, California, and active from 1962 to 1994. The company was founded by Philip O. Kraft and began as a manufacturer of transmitters for radio-controlled models, namely RC aircraft. In 1972, the company was acquired by the Carlisle Corporation of Cincinnati, Ohio ...
Descartes's theorem. Descartes's theorem on the "total defect" of a polyhedron states that if the polyhedron is homeomorphic to a sphere (i.e. topologically equivalent to a sphere, so that it may be deformed into a sphere by stretching without tearing), the "total defect", i.e. the sum of the defects of all of the vertices, is two full circles (or 720° or 4 π radians).
Blanche Descartes was a collaborative pseudonym used by the English mathematicians R. Leonard Brooks, Arthur Harold Stone, Cedric Smith, and W. T. Tutte.The four mathematicians met in 1935 as undergraduate students at Trinity College, Cambridge, where they joined the Trinity Mathematical Society and began meeting together to work on mathematical problems.
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.
Cubic. Snark. Table of graphs and parameters. In the mathematical field of graph theory, a Descartes snark is an undirected graph with 210 vertices and 315 edges. It is a snark, first discovered by William Tutte in 1948 under the pseudonym Blanche Descartes. [1]
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 .