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This is an accepted version of this page This is the latest accepted revision, reviewed on 23 September 2024. Discrepancy between lack of evidence of advanced alien life and apparently high likelihood it exists This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is ...
e. Stephen William Hawking, CH, CBE, FRS, FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. [6][17][18] Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge, widely ...
The Sistine Chapel (/ ˈsɪstiːn / SIST-een; Latin: Sacellum Sixtinum; Italian: Cappella Sistina [kapˈpɛlla siˈstiːna]) is a chapel in the Apostolic Palace, the pope's official residence in Vatican City. Originally known as the Cappella Magna ('Great Chapel'), it takes its name from Pope Sixtus IV, who had it built between 1473 and 1481.
Nonstandard analysis. v. t. e. In mathematics, the Taylor series or Taylor expansion of a function is an infinite sum of terms that are expressed in terms of the function's derivatives at a single point. For most common functions, the function and the sum of its Taylor series are equal near this point.
Wave equation. The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves (e.g. water waves, sound waves and seismic waves) or electromagnetic waves (including light waves). It arises in fields like acoustics, electromagnetism, and fluid dynamics.
Eigenvalues and eigenvectors. In linear algebra, an eigenvector (/ ˈaɪɡən -/ EYE-gən-) or characteristic vector is a vector that has its direction unchanged by a given linear transformation. More precisely, an eigenvector, , of a linear transformation, , is scaled by a constant factor, , when the linear transformation is applied to it: .
The Keys to the White House. The Keys to the White House is a prediction system for determining the outcome of presidential elections in the United States. It was developed by American historian Allan Lichtman and Russian geophysicist Vladimir Keilis-Borok in 1981, adapting prediction methods that Keilis-Borok designed for earthquake prediction.
Signature. Charles Lutwidge Dodgson (/ ˈlʌtwɪdʒ ˈdɒdsən / LUT-wij DOD-sən; 27 January 1832 – 14 January 1898), better known by his pen name Lewis Carroll, was an English author, poet, mathematician, photographer and Anglican deacon . His most notable works are Alice's Adventures in Wonderland (1865) and its sequel Through the Looking ...