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Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman who has been described as America's greatest inventor. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.Edison was raised in the American Midwest; early in his career he worked as a telegraph operator, which inspired some of his earliest inventions.
Krasnoyarsk | |
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Krasnoyarsk ( KRA(H)SS-nə-YARSK; Russian: Красноя́рск, tr. Krasnojársk, IPA: [krəsnɐˈjarsk] (listen)) is a city and the administrative center of Krasnoyarsk Krai, Russia, located on the Yenisei River. It is the third-largest city in Siberia after Novosibirsk and Omsk, with a population of 1,035,528 as of the 2010 Census.
Zenica ( ZEN-it-sə; Serbo-Croatian Cyrillic: Зеница; Bosnian: [zěnitsa] (listen)), is a city and...
Dakar (English: ; French: [dakaʁ]; Wolof: Ndakaaru) is the capital and largest city of Senegal....
Nairobi () is the capital and the largest city of Kenya. The name comes from the Maasai phrase...
Tallinn (; Estonian: [ˈtɑlʲˑinˑ]; names in other languages) is the capital, primate and the most...