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7 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.
7 godz. temu · The Moon is Earth's only natural satellite.It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth. . The Moon's gravitational pull – and to a ...
7 godz. temu · Of course, the U.S. would like to maintain the existing U.S. dollar status, but given the current situation, it might prefer a weaker currency, which would be good for the U.S. economy. As the accompanying chart shows, whether over the medium to long-run (from 2000 to now) or shorter-run cyclical term, GDP YoY growth moves oppositely to DXY YoY ...
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 · A few bands reluctantly complied but most resisted violently, leading to the Second Seminole War (1835-1842), which was by far the longest and most wide-ranging of the three conflicts. Initially, less than 2000 Seminole warriors employed hit-and-run guerilla warfare tactics and knowledge of the land to evade and frustrate a combined U.S. Army ...
