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Rectified 9-cubes. In nine-dimensional geometry, a rectified 9-cube is a convex uniform 9-polytope, being a rectification of the regular 9-cube . There are 9 rectifications of the 9-cube. The zeroth is the 9-cube itself, and the 8th is the dual 9-orthoplex. Vertices of the rectified 9-cube are located at the edge-centers of the 9-orthoplex.
Erie J. Sauder (August 6, 1904 – June 29, 1997) was an American inventor and furniture-maker. He invented a knock-down table in 1951 [2] [3] and founded a company that produced ready-to-assemble furniture—one of the largest in the United States at the time of his death.
In 1991, John McCumber created a model framework for establishing and evaluating information security ( information assurance) programs, now known as The McCumber Cube . This security model is depicted as a three-dimensional Rubik's Cube -like grid. The concept of this model is that, in developing information assurance systems, organizations ...
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OCLC. 7627746. The Simple Solution to Rubik's Cube by James G. Nourse is a book that was published in 1981. The book explains how to solve the Rubik's Cube. The book became the best-selling book of 1981, selling 6,680,000 copies that year. It was the fastest-selling title in the 36-year history of Bantam Books .
Learn additional security features for AOL Mail. AOL Mail for Verizon Customers · Oct 28, 2023. Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
AIM-9 Sidewinder. The AIM-9 Sidewinder ("AIM" for "Air Intercept Missile") is a short-range air-to-air missile. Entering service with the United States Navy in 1956 and the Air Force in 1964, the AIM-9 is one of the oldest, cheapest, and most successful air-to-air missiles. [3] Its latest variants remain standard equipment in most Western ...
The Necker cube is an optical illusion that was first published as a rhomboid in 1832 by Swiss crystallographer Louis Albert Necker. It is a simple wire-frame , two dimensional drawing of a cube with no visual cues as to its orientation , so it can be interpreted to have either the lower-left or the upper-right square as its front side.