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3 天前 · Chung Ju-yung (1915–2001) founded the Hyundai Engineering and Construction Company in 1947. Hyundai Motor Company was later established in 1967, and the company's first model, the Cortina, was released in cooperation with Ford Motor Company in 1968. [12] When Hyundai wanted to develop their own car, they hired George Turnbull in February 1974 ...
4 天前 · This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. This is a list of articles about prime numbers. A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there ...
1 天前 · History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [1] is the systematic study and documentation of the human past. [2] [3] The period of events before the invention of writing systems is considered prehistory. [4] ". History" is an umbrella term comprising past events as well as the ...
2 天前 · Karl Benz (1844–1929) made the 1886 Benz Patent Motorwagen, which is widely regarded as the first automobile. Mercedes-Benz traces its origins to Karl Benz's first internal combustion engine in a car, seen in the Benz Patent Motorwagen – financed by Bertha Benz's dowry and patented in January 1886 – and Gottlieb Daimler and their engineer Wilhelm Maybach's conversion of a stagecoach ...
1 天前 · c Two died soon after birth. Alexander Graham Bell ( / ˈɡreɪ.əm /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
3 天前 · Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
1 天前 · Audi AG (German: [ˈaʊ̯di ʔaːˈɡeː] ⓘ) is a German automotive manufacturer of luxury vehicles headquartered in Ingolstadt, Bavaria, Germany. A subsidiary of the Volkswagen Group, Audi produces vehicles in nine production facilities worldwide. The origins of the company are complex, dating back to the early 20th century and the initial ...
