List Of Adages Named After People
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List Of Adages Named After People
This list of eponymous laws provides links to articles on laws, principles, adages, and other succinct observations or predictions named after a person. In some cases the person named has coined the law – such as Parkinson's law. In others, the work or publications of the individual have led to the law being so named – as is the case with Moore's law. There are also laws ascribed to individuals by others, such as Murphy's law; or given eponymous names despite the absence of the named person. A–B * Acton's dictum: "Power tends to corrupt, and absolute power corrupts absolutely. Great men are almost always bad men .. * Aitken's law describes how vowel length in Scots and Scottish English is conditioned by environment. Named for Professor A. J. Aitken, who formulated it. * Alder's razor: See Newton's flaming laser sword below. * Allen's rule: Endotherms from colder climates usually have shorter limbs (or appendages) than the equivalent animals from warmer climates ...
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List Of Paradoxes
This list includes well known paradoxes, grouped thematically. The grouping is approximate, as paradoxes may fit into more than one category. This list collects only scenarios that have been called a paradox by at least one source and have their own article in this encyclopedia. Although considered paradoxes, some of these are simply based on fallacious reasoning ( falsidical), or an unintuitive solution (veridical). Informally, the term ''paradox'' is often used to describe a counter-intuitive result. However, some of these paradoxes qualify to fit into the mainstream perception of a paradox, which is a self-contradictory result gained even while properly applying accepted ways of reasoning. These paradoxes, often called ''antinomy,'' point out genuine problems in our understanding of the ideas of truth and description. Logic * : The supposition that, 'if one of two simultaneous assumptions leads to a contradiction, the other assumption is also disproved' leads to paradoxical ...
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Roy Amara
Roy Charles Amara (7 April 1925 – 31 December 2007) was an American researcher, scientist, futurist and president of the Institute for the Future best known for coining Amara's law on the effect of technology. He held a BS in Management, an MS in the Arts and Sciences, and a PhD in Systems Engineering, and also worked at the Stanford Research Institute. Amara's law His adage about forecasting the effects of technology has become known as Amara's law and states: We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. The law has been used in explaining nanotechnology. Selected bibliography Books * * * * Reports * * * * * * * * * * Published in Conference proceedings 1978 Winter Simulation Conference (WSC 1978)Pdf.reRoy Amaraat DBLP DBLP is a computer science bibliography website. Starting in 1993 at Universität Trier in Germany, it grew from a small collection of HTML files and became an or ...
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Archie's Law
In petrophysics, Archie's law relates the ''in-situ'' electrical conductivity (C) of a porous rock to its porosity (\phi\,\!) and fluid saturation (S_w) of the pores: :C_t = \frac C_w \phi^m S_w^n Here, \phi\,\! denotes the porosity, C_t the electrical conductivity of the fluid saturated rock, C_w represents the electrical conductivity of the aqueous solution (fluid or liquid phase), S_w is the water saturation, or more generally the fluid saturation, of the pores, m is the cementation exponent of the rock (usually in the range 1.8–2.0 for sandstones), n is the saturation exponent (usually close to 2) and a is the tortuosity factor. Reformulated for the electrical resistivity (R), the inverse of the electrical conductivity (R = \frac), the equation reads :R_t = a R_w \phi^ S_w^ with R_t for the total fluid saturated rock resistivity, and R_w for the resistivity of the fluid itself (w meaning water or an aqueous solution containing dissolved salts with ions bearing elect ...
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Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washington, United States. Its best-known software products are the Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. Microsoft ranked No. 21 in the 2020 Fortune 500 rankings of the largest United States corporations by total revenue; it was the world's largest software maker by revenue as of 2019. It is one of the Big Five American information technology companies, alongside Alphabet, Amazon, Apple, and Meta. Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800. It rose to do ...
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Bill Gates
William Henry Gates III (born October 28, 1955) is an American business magnate and philanthropist. He is a co-founder of Microsoft, along with his late childhood friend Paul Allen. During his career at Microsoft, Gates held the positions of chairman, chief executive officer (CEO), President (corporate title), president and software architect, chief software architect, while also being the largest individual shareholder until May 2014. He was a major entrepreneur of the Home computer, microcomputer revolution of the 1970s and 1980s. Gates was born and raised in Seattle. In 1975, he and Allen founded Microsoft in Albuquerque, New Mexico. It became the world's largest personal computer software company. Gates led the company as chairman and CEO until stepping down as CEO in January 2000, succeeded by Steve Ballmer, but he remained chairman of the board of directors and became chief software architect. During the late 1990s, he was Criticism of Microsoft, criticized for his bu ...
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Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 series of instruction sets, the instruction sets found in most personal computers (PCs). Incorporated in Delaware, Intel ranked No. 45 in the 2020 ''Fortune'' 500 list of the largest United States corporations by total revenue for nearly a decade, from 2007 to 2016 fiscal years. Intel supplies microprocessors for computer system manufacturers such as Acer, Lenovo, HP, and Dell. Intel also manufactures motherboard chipsets, network interface controllers and integrated circuits, flash memory, graphics chips, embedded processors and other devices related to communications and computing. Intel (''int''egrated and ''el''ectronics) was founded on July 18, 1968, by semiconductor pioneers Gordon Moore (of Moore's law) and Robert Noyce ( ...
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Andy Grove
Andrew Stephen Grove (born András István Gróf; 2 September 193621 March 2016) was a Hungarian-American businessman and engineer who served as the third CEO of Intel Corporation. He escaped from Communist-controlled Hungary at the age of 20 and moved to the United States, where he finished his education. He was the third employee and eventual third CEO of Intel, transforming the company into the world's largest semiconductor company. As a result of his work at Intel, along with his books and professional articles, Grove had a considerable influence on electronics manufacturing industries worldwide. He has been called the "guy who drove the growth phase" of Silicon Valley. In 1997, ''Time'' magazine chose him as "Man of the Year", for being "the person most responsible for the amazing growth in the power and the innovative potential of microchips." One source notes that by his accomplishments at Intel alone, he "merits a place alongside the great business leaders of the 20th ...
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Andy And Bill's Law
Andy and Bill's law is a statement that new software will always consume any increase in computing power that new hardware can provide. The law originates from a humorous one-liner told in the 1990s during computing conferences: "what Andy giveth, Bill taketh away." The phrase is a riff upon the business strategies of former Intel CEO Andy Grove, and former CEO of Microsoft, Bill Gates. Intel and Microsoft had entered into a lucrative partnership in the 1980s through to the 1990s, and the standard chipsets in Microsoft Windows were Intel brand. Despite the profit Intel gained from the deal, Grove felt that Gates wasn't making full use of the powerful capabilities of Intel chips, and that he was in fact refusing to upgrade his software to achieve optimum hardware performance. Grove's frustration with the dominance of Microsoft software over Intel hardware became public, which spawned the humorous catchphrase; and, later, the law. See also *Jevons paradox * Moore's law *Wirth%27s la ...
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Anderson's Rule
Anderson's rule is used for the construction of energy band diagrams of the heterojunction between two semiconductor materials. Anderson's rule states that when constructing an energy band diagram, the vacuum levels of the two semiconductors on either side of the heterojunction should be aligned (at the same energy). It is also referred to as the electron affinity rule, and is closely related to the Schottky–Mott rule for metal–semiconductor junctions. Anderson's rule was first described by R. L. Anderson in 1960. Constructing energy band diagrams Once the vacuum levels are aligned it is possible to use the electron affinity and band gap values for each semiconductor to calculate the conduction band and valence band offsets. The electron affinity (usually given by the symbol \chi in solid state physics) gives the energy difference between the lower edge of the conduction band and the vacuum level of the semiconductor. The band gap (usually given the symbol E_) gives the ...
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André-Marie Ampère
André-Marie Ampère (, ; ; 20 January 177510 June 1836) was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as "electrodynamics". He is also the inventor of numerous applications, such as the solenoid (a term coined by him) and the electrical telegraph. As an autodidact, Ampère was a member of the French Academy of Sciences and professor at the École polytechnique and the Collège de France. The SI unit of measurement of electric current, the ampere, is named after him. His name is also one of the 72 names inscribed on the Eiffel Tower. Early life André-Marie Ampère was born on 20 January 1775 to Jean-Jacques Ampère, a prosperous businessman, and Jeanne Antoinette Desutières-Sarcey Ampère, during the height of the French Enlightenment. He spent his childhood and adolescence at the family property at Poleymieux-au-Mont-d'Or near Lyon. Jean-Jacques Ampère, a successful merchant, was an ...
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Electric Current
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In an electrolyte the charge carriers are ions, while in plasma, an ionized gas, they are ions and electrons. The SI unit of electric current is the ampere, or ''amp'', which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit. Electric current is measured using a device called an ammeter. Electric currents create magnetic fields, which are used in motors, generators, inductors, and transformers. In ordinary con ...
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Magnetic Field
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets. In addition, a nonuniform magnetic field exerts minuscule forces on "nonmagnetic" materials by three other magnetic effects: paramagnetism, diamagnetism, and antiferromagnetism, although these forces are usually so small they can only be detected by laboratory equipment. Magnetic fields surround magnetized materials, and are created by electric currents such as those used in electromagnets, and by electric fields varying in time. Since both strength and direction of a magnetic field may vary with location, it is described mathematically by a function assigning a vector to each point of space, cal ...
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