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1 dzień temu · The exponential function is defined on the entire domain of the complex numbers.The definition of sine and cosine can be extended to all complex numbers via = = + These can be reversed to give Euler's formula = + = When plotted on the complex plane, the function for real values of traces out the unit circle in the complex plane.. When is a real number, sine and cosine ...
5 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 ...
1 dzień temu · Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now." Italian-American physicist Enrico Fermi's name is associated with the paradox because of a casual ...
1 dzień temu · Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia.It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. It is the world's ninth-most populous country and Europe's most populous country.Russia is a highly urbanized country including 16 population centres with over a million ...
1 dzień temu · 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-speed railway after High Speed 1, which connects London to the Channel Tunnel.The majority of the project is planned to be completed between 2029 and 2033.
1 dzień temu · It's one of the most iconic and popular music festivals in the world, and it's notoriously hard to get a ticket. Glastonbury has rolled around once again and roughly 210,000 people have flocked to ...
