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3 godz. temu · The potential difference between two points is measured in units of volts in recognition of Volta's work. [64] [11] The first mention of voltaic electricity, although not recognized as such at the time, was probably made by Johann Georg Sulzer in 1767, who, upon placing a small disc of zinc under his tongue and a small disc of copper over it ...
1 dzień temu · Reform UK polled much worse with ethnically diverse communities than the population at large - they're on 7% - but they're still one point above the Lib Dems. Read Gurpreet's full piece here:
1 dzień temu · Etymology. The name "orangutan" (also written orang-utan, orang utan, orangutang, and ourang-outang) is derived from the Malay words orang, meaning "person", and hutan, meaning "forest". The locals originally used the term for actual forest-dwelling humans, but the word underwent a semantic extension to include apes of the Pongo genus at an early stage in the development of Malay.
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 · 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 ...
3 godz. temu · Etymology. The English word sun developed from Old English sunne.Cognates appear in other Germanic languages, including West Frisian sinne, Dutch zon, Low German Sünn, Standard German Sonne, Bavarian Sunna, Old Norse sunna, and Gothic sunnō.All these words stem from Proto-Germanic *sunnōn. This is ultimately related to the word for sun in other branches of the Indo-European language family ...
1 dzień temu · SN 1994D (bright spot on the lower left), a type Ia supernova within its host galaxy, NGC 4526. A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star.A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion.The original object, called the progenitor, either collapses to a ...
