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19 hours ago · Tesla's AC dynamo-electric machine (AC electric generator) in an 1888 U.S. patent 390,721 In July 1888, Brown and Peck negotiated a licensing deal with George Westinghouse for Tesla's polyphase induction motor and transformer designs for $60,000 in cash and stock and a royalty of $2.50 per AC horsepower produced by each motor.
19 hours ago · The McDonnell Douglas (now Boeing) F-15E Strike Eagle is an American all-weather multirole strike fighter [ 5 ] derived from the McDonnell Douglas F-15 Eagle. The F-15E was designed in the 1980s for long-range, high-speed interdiction without relying on escort or electronic-warfare aircraft. United States Air Force (USAF) F-15E Strike Eagles ...
19 hours ago · Helsinki airport deals with significant snow and ice. Helsinki-Vantaa Airport (Finnish: Helsinki-Vantaan lentoasema, Swedish: Helsingfors-Vanda flygplats) [1] (IATA: HEL, ICAO: EFHK), or simply Helsinki Airport, is the main international airport serving Helsinki, the capital of Finland, as well as its surrounding metropolitan area, and the Uusimaa region in Finland.
19 hours ago · The Silahtarağa Power Station, a coal-fired power station along the Golden Horn, was the sole source of Istanbul's electricity between 1914, when its first engine room was completed, and 1952. [322] Following the founding of the Turkish Republic, the plant underwent renovations to accommodate the city's increasing demand; its capacity grew from 23 megawatts in 1923 to a peak of 120 megawatts ...
19 hours ago · Pollution is the introduction of contaminants into the natural environment that cause adverse change. [ 1 ] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring ...
19 hours ago · Accident – aircraft Long Island, New York: 229–600 2021 2021 Western North America heat wave: Heat wave Pacific Northwest: At least 116 deaths in Oregon, at least 112 in Washington, and one in Idaho: 228 1997 Korean Air Flight 801: Accident – aircraft Asan-Maina, Guam: 225 1865 Brother Jonathan: Accident – shipwreck Off Crescent City ...
