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8 godz. temu · One astronomical unit (about 150 million kilometres; 93 million miles) is defined as the mean distance between the centres of the Sun and the Earth. The instantaneous distance varies by about ± 2.5 million km or 1.55 million miles as Earth moves from perihelion on ~ January 3rd to aphelion on ~ July 4th.
1 dzień temu · Enrico Fermi (1901–1954) The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth. The first aspect of the Fermi paradox is a function of the scale or the large ...
8 godz. temu · Canada is scheduled to compete at the 2024 Summer Olympics in Paris, France from July 26 to August 11, 2024. Since Canada 's debut in 1900, Canadian athletes have appeared in every edition of the Summer Olympic Games, except for the 1980 Summer Olympics in Moscow because of the country's support for United States-led boycott.
1 dzień temu · 25 kV 50 Hz AC overhead line. Operating speed. 360 km/h (225 mph) maximum, 330 km/h (205 mph) routinely [1] High Speed 2 ( HS2) is a high-speed railway which is under construction in England. The route will be between Handsacre, in southern Staffordshire, and London, with a spur to Birmingham. HS2 is to be Britain's second purpose-built high ...
1 dzień temu · Getúlio Vargas. Getúlio Dornelles Vargas ( Brazilian Portuguese: [ʒeˈtulju doʁˈnɛliz ˈvaʁɡɐs]; 19 April 1882 – 24 August 1954) was a Brazilian lawyer and politician who served as the 14th and 17th president of Brazil, from 1930 to 1945 and from 1951 until his suicide in 1954. Due to his long and controversial tenure as Brazil's ...
8 godz. temu · Authored by Jeffrey Sachs via AntiWar.com, For the fifth time since 2008, Russia has proposed to negotiate with the U.S. over security arrangements, this time in proposals made by President Vladimir Putin on June 14, 2024. Four previous times, the U.S. rejected the offer of negotiations in favor of a neocon strategy to weaken or dismember Russia through war and covert operations.
