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Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof. GD&T is used to define the nominal (theoretically perfect ...
In 1956, a large property in Beaverton became available, and the company's employee retirement trust purchased the land and leased it back to the company. [10] Construction began in 1957 and on May 1, 1959, Tektronix moved into its new Beaverton headquarters campus, [10] on a 313-acre (1.27 km 2) site which came to be called the Tektronix Industrial Park.
Jean Bernard Léon Foucault (1819–1868), France – Foucault pendulum, gyroscope, eddy current; Benoît Fourneyron (1802–1867), France – water turbine; John Fowler (1826–1864), UK – steam-driven ploughing engine; Benjamin Franklin (1706–1790), U.S. – the pointed lightning rod conductor, bifocal glasses, the Franklin stove, the ...
Berners-Lee, Tim: Invented the World Wide Web and sent the first HTTP communication between client and server. [15] 1995 Blum, Manuel: Contributions to the foundations of computational complexity theory and its application to cryptography and program checking [16] 1966 Böhm, Corrado: Theorized of the concept of structured programming. 1847 ...
Jeanne Lee (1939–2000), U.S. jazz singer; Jeanne Lee Crews (born 1940), U.S. aerospace engineer; Jeannie Cho Lee (born 1968), Korean-American Hongkonger journalist; Jeannie T. Lee, U.S. geneticist; All pages with titles beginning with Jean Lee; All pages with titles containing Jean Lee; Jeannette Lee (disambiguation)
Jean Amédée Hoerni (September 26, 1924 – January 12, 1997) was a Swiss-born American engineer. He was a silicon transistor pioneer, and a member of the " traitorous eight ". He developed the planar process , an important technology for reliably fabricating and manufacturing semiconductor devices , such as transistors and integrated circuits .
Jean Marian Purdy (25 April 1945 – 16 March 1985) was a British nurse, embryologist and pioneer of fertility treatment. She was responsible with Robert Edwards and Patrick Steptoe for developing in vitro fertilisation (IVF); Louise Joy Brown , the first "test-tube baby", was born on 25 July 1978, and Purdy was the first to see the embryonic ...
The Atlas is a World Map, that is, world map and regions of the Earth with the various peoples who live there. The work was done at the request of Prince John, son of Pedro IV, desirous of a faithful representation of the world from west to east. 12 sheets form the world map on tables, linked to each other by scroll and screen layout. Each ...