id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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|---|---|---|---|---|---|
781,423 | https://en.wikipedia.org/wiki/Desert%20planet | A desert planet, also known as a dry planet, an arid planet, or a dune planet, is a type of terrestrial planet with an arid surface consistency similar to Earth's deserts. Mars is a prominent example of a desert planet in the Solar System.
History
A 2011 study suggested that not only are life-sustaining desert planet... | Desert planet | Biology | 350 |
21,106,847 | https://en.wikipedia.org/wiki/Integrated%20operations | In the petroleum industry, Integrated operations (IO) refers to the integration of people, disciplines, organizations, work processes and information and communication technology to make smarter decisions. In short, IO is collaboration with focus on production.
Contents of the term
The most striking part of IO has bee... | Integrated operations | Chemistry,Engineering | 1,634 |
61,016,049 | https://en.wikipedia.org/wiki/Testosterone%20propionate/testosterone%20ketolaurate | Testosterone propionate/testosterone ketolaurate (TP/TKL), sold under the brand name Testosid-Depot, is an injectable combination medication of testosterone propionate (TP), an androgen/anabolic steroid, and testosterone ketolaurate (TKL; testosterone caprinoylacetate), an androgen/anabolic steroid. It contains 25 mg T... | Testosterone propionate/testosterone ketolaurate | Chemistry | 156 |
31,430,040 | https://en.wikipedia.org/wiki/Model-dependent%20realism | Model-dependent realism is a view of scientific inquiry that focuses on the role of scientific models of phenomena. It claims reality should be interpreted based upon these models, and where several models overlap in describing a particular subject, multiple, equally valid, realities exist. It claims that it is meaning... | Model-dependent realism | Physics | 673 |
68,662,735 | https://en.wikipedia.org/wiki/Marshall%20Building | The Marshall Building, formerly known as the Hoffman & Sons Co. Building, is a historic building in Milwaukee, Wisconsin, United States. Part of the Historic Third Ward, the six-story building is the oldest existing example of structural engineer Claude A. P. Turner's Spiral Mushroom System of flat-slab concrete reinfo... | Marshall Building | Engineering | 444 |
2,179,555 | https://en.wikipedia.org/wiki/Airport%20problem | In mathematics and especially game theory, the airport problem is a type of fair division problem in which it is decided how to distribute the cost of an airport runway among different players who need runways of different lengths. The problem was introduced by S. C. Littlechild and G. Owen in 1973. Their proposed sol... | Airport problem | Mathematics | 727 |
12,066,363 | https://en.wikipedia.org/wiki/Bergen%20Academy%20of%20Art%20and%20Design | Bergen Academy of Art and Design () or KHiB was one of two independent and accredited scientific institutions of higher learning in the visual arts and design in Norway (The other is Oslo National Academy of the Arts). It was located in Bergen, Norway. The education included the subject areas fine art, photography, pri... | Bergen Academy of Art and Design | Engineering | 405 |
10,612,482 | https://en.wikipedia.org/wiki/Dimension%20Data | Dimension Data was a company specialising in information technology services. Based in Johannesburg, South Africa, the company maintained operations on every inhabited continent. Dimension Data focused on services including IT consulting, technical and support services, and managed services. The company was the officia... | Dimension Data | Technology | 1,593 |
47,262,026 | https://en.wikipedia.org/wiki/Ultra-high-definition%20television | Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by... | Ultra-high-definition television | Technology | 9,336 |
76,393,782 | https://en.wikipedia.org/wiki/Terbium%28III%29%20iodate | Terbium(III) iodate is an inorganic compound with the chemical formula Tb(IO3)3. It can be obtained by the reaction of terbium(III) periodate and periodic acid in water at 160 °C, or by the hydrothermal reaction of terbium(III) nitrate or terbium(III) chloride and iodic acid at 200 °C . It crystallizes in the monoclini... | Terbium(III) iodate | Chemistry | 138 |
36,065,631 | https://en.wikipedia.org/wiki/Mohamed%20Salmane | Mohamed Salmane (born 1958) is a Tunisian politician. He serves as the Minister of Housing and Equipment under Prime Minister Hamadi Jebali.
Biography
Mohamed Salmane was born on 9 October 1958 in Nabeul. He received a Bachelor of Science degree in Civil engineering.
He has been the General Director of the Tunisian-L... | Mohamed Salmane | Engineering | 141 |
1,160 | https://en.wikipedia.org/wiki/Automorphism | In mathematics, an automorphism is an isomorphism from a mathematical object to itself. It is, in some sense, a symmetry of the object, and a way of mapping the object to itself while preserving all of its structure. The set of all automorphisms of an object forms a group, called the automorphism group. It is, loosely ... | Automorphism | Physics,Mathematics | 1,582 |
10,595,872 | https://en.wikipedia.org/wiki/Illegal%20number | An illegal number is a number that represents information which is illegal to possess, utter, propagate, or otherwise transmit in some legal jurisdiction. Any piece of digital information is representable as a number; consequently, if communicating a specific set of information is illegal in some way, then the number m... | Illegal number | Mathematics | 1,097 |
2,469,940 | https://en.wikipedia.org/wiki/Keith%20Medal | The Keith Medal was a prize awarded by the Royal Society of Edinburgh, Scotland's national academy, for a scientific paper published in the society's scientific journals, preference being given to a paper containing a discovery, either in mathematics or earth sciences.
The Medal was inaugurated in 1827 as a result of ... | Keith Medal | Technology | 905 |
32,352,914 | https://en.wikipedia.org/wiki/Lactarius%20crocatus | Lactarius crocatus is a member of the large milk-cap genus Lactarius in the order Russulales. Found in Chiang Mai Province (northern Thailand), it was described as new to science in 2010.
See also
List of Lactarius species
References
External links
crocatus
Fungi described in 2010
Fungi of Asia
Fungus species | Lactarius crocatus | Biology | 71 |
66,480 | https://en.wikipedia.org/wiki/AstroTurf | AstroTurf is an American subsidiary of SportGroup that produces artificial turf for playing surfaces in sports. The original AstroTurf product was a short-pile synthetic turf invented in 1965 by Monsanto. Since the early 2000s, AstroTurf has marketed taller pile systems that use infill materials to better replicate nat... | AstroTurf | Chemistry | 1,508 |
63,517,158 | https://en.wikipedia.org/wiki/Roborock | Roborock (also known as Beijing Roborock Technology Co. Ltd.; ) is a Chinese consumer goods company known for its robotic sweeping and mopping devices and handheld cordless stick vacuums. Xiaomi played a key role in the company's founding.
History
Beijing Roborock Technology Co. Ltd. was founded in 2014 in Beijing, Ch... | Roborock | Technology | 757 |
3,285,684 | https://en.wikipedia.org/wiki/Ancient%20DNA | Ancient DNA (aDNA) is DNA isolated from ancient sources (typically specimens, but also environmental DNA). Due to degradation processes (including cross-linking, deamination and fragmentation) ancient DNA is more degraded in comparison with contemporary genetic material. Genetic material has been recovered from paleo/a... | Ancient DNA | Engineering,Biology | 3,047 |
14,251,545 | https://en.wikipedia.org/wiki/Coenzyme-B%20sulfoethylthiotransferase | In enzymology, coenzyme-B sulfoethylthiotransferase, also known as methyl-coenzyme M reductase (MCR) or most systematically as 2-(methylthio)ethanesulfonate:N-(7-thioheptanoyl)-3-O-phosphothreonine S-(2-sulfoethyl)thiotransferase is an enzyme that catalyzes the final step in the formation of methane. It does so by comb... | Coenzyme-B sulfoethylthiotransferase | Chemistry,Engineering | 442 |
24,467,180 | https://en.wikipedia.org/wiki/NUTS%20statistical%20regions%20of%20North%20Macedonia | As a candidate country of the European Union, North Macedonia (MK) is included in the Nomenclature of Territorial Units for Statistics (NUTS). The three NUTS levels are:
NUTS-1: MK0 North Macedonia
NUTS-2: MK00 North Macedonia
NUTS-3: 8 Statistical regions
MK001 Vardarski
MK002 Istočen
MK003 Jugozapaden
MK004 Ju... | NUTS statistical regions of North Macedonia | Mathematics | 223 |
75,883,882 | https://en.wikipedia.org/wiki/Pseudomonas%20graminis | Pseudomonas graminis is a species of bacteria.
References
Pseudomonadales | Pseudomonas graminis | Biology | 19 |
31,567,349 | https://en.wikipedia.org/wiki/Widest%20path%20problem | In graph algorithms, the widest path problem is the problem of finding a path between two designated vertices in a weighted graph, maximizing the weight of the minimum-weight edge in the path. The widest path problem is also known as the maximum capacity path problem. It is possible to adapt most shortest path algorith... | Widest path problem | Mathematics | 2,481 |
72,658,320 | https://en.wikipedia.org/wiki/Intercellular%20communication | Intercellular communication (ICC) refers to the various ways and structures that biological cells use to communicate with each other directly or through their environment. Often the environment has been thought of as the extracellular spaces within an animal. More broadly, cells may also communicate with other animals,... | Intercellular communication | Biology | 3,297 |
40,820,811 | https://en.wikipedia.org/wiki/Boxcar%20averager | A boxcar averager, gated integrator or boxcar integrator is an electronic test instrument that integrates the signal input voltage after a defined waiting time (trigger delay) over a specified period of time (gate width) and then averages over multiple integration results (samples) – for a mathematical description see ... | Boxcar averager | Technology,Engineering | 591 |
3,610,026 | https://en.wikipedia.org/wiki/Jabol | Jabol () is a slang name for a kind of cheap Polish fruit wine. It is made from fermented fruit and is bottled at 8% to 18% alcohol by volume. Its name is derived from , "apple", from which it is often made. Though it is usually fruit flavoured, it can come in other flavours such as chocolate or mint. It comes in a var... | Jabol | Biology | 497 |
7,661,732 | https://en.wikipedia.org/wiki/-al | In chemistry, the suffix -al is the IUPAC nomenclature used in organic chemistry to form names of aldehydes containing the -(CO)H group in the systematic form. It was extracted from the word "aldehyde". With the exception of chemical compounds having a higher priority than it, all aldehydes is named with -al, such as '... | -al | Chemistry | 127 |
41,676,232 | https://en.wikipedia.org/wiki/COS%20%28operating%20system%29 | COS (China Operating System) is a Linux kernel-based mobile operating system developed in China mainly targeting mobile devices, tablets and set-top boxes. It is being developed by the Institute of Software at the Chinese Academy of Sciences (ISCAS) together with Shanghai Liantong Network Communications Technology to c... | COS (operating system) | Technology | 268 |
13,253,580 | https://en.wikipedia.org/wiki/False%20door | A false door, or recessed niche, is an artistic representation of a door which does not function like a real door. They can be carved in a wall or painted on it. They are a common architectural element in the tombs of ancient Egypt, but appeared possibly earlier in some Pre-Nuragic Sardinian tombs known as Domus de Jan... | False door | Technology,Engineering | 1,448 |
6,269,788 | https://en.wikipedia.org/wiki/Microsoft%20Forefront | Microsoft Forefront is a discontinued family of line-of-business security software by Microsoft Corporation. Microsoft Forefront products are designed to help protect computer networks, network servers (such as Microsoft Exchange Server and Microsoft SharePoint Server) and individual devices. As of 2015, the only activ... | Microsoft Forefront | Engineering | 654 |
5,171,756 | https://en.wikipedia.org/wiki/4%20Centauri | 4 Centauri is a star in the constellation Centaurus. It is a blue-white B-type subgiant with an apparent magnitude of +4.75 and is approximately 640 light years from Earth.
4 Centauri is a hierarchical quadruple star system. The primary component of the system, 4 Centauri A, is a spectroscopic binary, meaning that it... | 4 Centauri | Astronomy | 274 |
5,622,569 | https://en.wikipedia.org/wiki/Hansen%20solubility%20parameter | Hansen solubility parameters were developed by Charles M. Hansen in his Ph.D thesis in 1967 as a way of predicting if one material will dissolve in another and form a solution. They are based on the idea that like dissolves like where one molecule is defined as being 'like' another if it bonds to itself in a similar wa... | Hansen solubility parameter | Physics,Chemistry,Materials_science,Engineering | 1,305 |
36,118,235 | https://en.wikipedia.org/wiki/Kosmos%201261 | Kosmos 1261 ( meaning Cosmos 1261) was a Soviet US-K missile early warning satellite which was launched in 1981 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors.
Kosmos 1261 was launched from Site 41/1 at Plesetsk Cosm... | Kosmos 1261 | Technology | 327 |
25,944,272 | https://en.wikipedia.org/wiki/Table%20of%20costs%20of%20operations%20in%20elliptic%20curves | Elliptic curve cryptography is a popular form of public key encryption that is based on the mathematical theory of elliptic curves. Points on an elliptic curve can be added and form a group under this addition operation. This article describes the computational costs for this group addition and certain related operatio... | Table of costs of operations in elliptic curves | Mathematics,Technology | 616 |
24,156,005 | https://en.wikipedia.org/wiki/C17H14N2 | {{DISPLAYTITLE:C17H14N2}}
The molecular formula C17H14N2 (molar mass: 246.31 g/mol, exact mass: 246.1157 u) may refer to:
3,3'-Diindolylmethane (DIM)
Ellipticine
Olivacine
Molecular formulas | C17H14N2 | Physics,Chemistry | 72 |
830,651 | https://en.wikipedia.org/wiki/Biotechnology%20and%20Biological%20Sciences%20Research%20Council | Biotechnology and Biological Sciences Research Council (BBSRC), part of UK Research and Innovation, is a non-departmental public body (NDPB), and is the largest UK public funder of non-medical bioscience. It predominantly funds scientific research institutes and university research departments in the UK.
Purpose
Rece... | Biotechnology and Biological Sciences Research Council | Engineering,Biology | 985 |
31,671,324 | https://en.wikipedia.org/wiki/Mennicke%20symbol | In mathematics, a Mennicke symbol is a map from pairs of elements of a number field to an abelian group satisfying some identities found by . They were named by , who used them in their solution of the congruence subgroup problem.
Definition
Suppose that A is a Dedekind domain and q is a non-zero ideal of A. The set ... | Mennicke symbol | Mathematics | 239 |
6,099 | https://en.wikipedia.org/wiki/Carboxylic%20acid | In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group () attached to an R-group. The general formula of a carboxylic acid is often written as or , sometimes as with R referring to an organyl group (e.g., alkyl, alkenyl, aryl), or hydrogen, or other groups. Carboxylic acids occur wi... | Carboxylic acid | Chemistry | 3,778 |
44,609,091 | https://en.wikipedia.org/wiki/Tylopilus%20funerarius | Tylopilus funerarius is a bolete fungus in the family Boletaceae. Found in Singapore, it was described as new to science in 1909 by English mycologist George Edward Massee. He described it as a "sombre, uninviting species, characterised by brownish-black velvety pileus and brown tube and pores", and considered it simil... | Tylopilus funerarius | Biology | 132 |
42,628,154 | https://en.wikipedia.org/wiki/Master%20stability%20function | In mathematics, the master stability function is a tool used to analyze the stability of the synchronous state in a dynamical system consisting of many identical systems which are coupled together, such as the Kuramoto model.
The setting is as follows. Consider a system with identical oscillators. Without the couplin... | Master stability function | Physics,Mathematics | 255 |
1,352,555 | https://en.wikipedia.org/wiki/Wheel%20and%20axle | The wheel and axle is a simple machine, consisting of a wheel attached to a smaller axle so that these two parts rotate together, in which a force is transferred from one to the other. The wheel and axle can be viewed as a version of the Lever, with a drive force applied tangentially to the perimeter of the wheel, and ... | Wheel and axle | Physics,Technology,Engineering | 1,534 |
15,310,422 | https://en.wikipedia.org/wiki/Christian%20Haass | Christian Haass (born 19 December 1960 in Mannheim, Germany) is a German biochemist who specializes in metabolic biochemistry and neuroscience.
Haass studied biology in Heidelberg from 1981 to 1985. From 1990 on he was a postdoctoral fellow in the laboratory of Dennis Selkoe at Harvard Medical School, where he worked ... | Christian Haass | Chemistry | 273 |
38,900,401 | https://en.wikipedia.org/wiki/Tricholoma%20odorum | Tricholoma odorum is a mushroom of the agaric genus Tricholoma. It was formally described in 1898 by American mycologist Charles Horton Peck. It is considered inedible.
See also
List of North American Tricholoma
References
External links
Fungi described in 1898
Fungi of North America
odorum
Taxa named by Charles ... | Tricholoma odorum | Biology | 75 |
63,732,867 | https://en.wikipedia.org/wiki/Andrea%20Cavalleri | Andrea Cavalleri (born 1969) is an Italian physicist who specializes in optical science and in condensed matter physics. He is the founding director of the in Hamburg, Germany and a professor of Physics at the University of Oxford. He was awarded the 2018 Frank Isakson Prize for his pioneering work on ultrafast optica... | Andrea Cavalleri | Physics,Materials_science | 587 |
70,769,267 | https://en.wikipedia.org/wiki/Coprinopsis%20pseudoradiata | Coprinopsis pseudoradiata is a species of coprophilous fungus in the family Psathyrellaceae. It grows on the dung of sheep.
See also
List of Coprinopsis species
References
Fungi described in 2001
Fungi of Europe
pseudoradiata
Fungus species | Coprinopsis pseudoradiata | Biology | 56 |
23,579 | https://en.wikipedia.org/wiki/Photoelectric%20effect | The photoelectric effect is the emission of electrons from a material caused by electromagnetic radiation such as ultraviolet light. Electrons emitted in this manner are called photoelectrons. The phenomenon is studied in condensed matter physics, solid state, and quantum chemistry to draw inferences about the properti... | Photoelectric effect | Physics,Chemistry | 5,971 |
77,017,919 | https://en.wikipedia.org/wiki/WIPO%20Treaty%20on%20Intellectual%20Property%2C%20Genetic%20Resources%20and%20Associated%20Traditional%20Knowledge | The WIPO Treaty on Intellectual Property, Genetic Resources and Associated Traditional Knowledge or GRATK Treaty is an international legal instrument to combat biopiracy through disclosure requirements for patent applicants whose inventions are based on genetic resources and/or associated traditional knowledge.
The tr... | WIPO Treaty on Intellectual Property, Genetic Resources and Associated Traditional Knowledge | Biology | 1,540 |
66,600,957 | https://en.wikipedia.org/wiki/Neolecta%20vitellina | Neolecta vitellina is a species of fungus belonging to the family Neolectaceae.
It has cosmopolitan distribution.
References
Ascomycota
Fungus species | Neolecta vitellina | Biology | 35 |
63,036,934 | https://en.wikipedia.org/wiki/Reverse%20Mathematics%3A%20Proofs%20from%20the%20Inside%20Out | Reverse Mathematics: Proofs from the Inside Out is a book by John Stillwell on reverse mathematics, the process of examining proofs in mathematics to determine which axioms are required by the proof. It was published in 2018 by the Princeton University Press.
Topics
The book begins with a historical overview of the lo... | Reverse Mathematics: Proofs from the Inside Out | Mathematics | 599 |
27,806,268 | https://en.wikipedia.org/wiki/Water%20window | The water window is a region of the electromagnetic spectrum in which water is transparent to soft x-rays. The window extends from the K-absorption edge of carbon at 282 eV (68 PHz, 4.40 nm wavelength) to the K-edge of oxygen at 533 eV (129 PHz, 2.33 nm wavelength). Water is transparent to these X-rays, but carbon an... | Water window | Physics | 137 |
22,952,896 | https://en.wikipedia.org/wiki/Zonal%20spherical%20harmonics | In the mathematical study of rotational symmetry, the zonal spherical harmonics are special spherical harmonics that are invariant under the rotation through a particular fixed axis. The zonal spherical functions are a broad extension of the notion of zonal spherical harmonics to allow for a more general symmetry grou... | Zonal spherical harmonics | Physics | 466 |
13,153,707 | https://en.wikipedia.org/wiki/Accounting%20machine | An accounting machine, or bookkeeping machine or recording-adder, was generally a calculator and printer combination tailored for a specific commercial activity such as billing, payroll, or ledger. Accounting machines were widespread from the early 1900s to 1980s, but were rendered obsolete by the availability of low-... | Accounting machine | Technology | 324 |
21,479,365 | https://en.wikipedia.org/wiki/Tolyl%20group | In organic chemistry, tolyl groups are functional groups related to toluene. They have the general formula , the change of the relative position of the methyl and the R substituent on the aromatic ring can generate three possible structural isomers 1,2 (ortho), 1,3 (meta), and 1,4 (para). Tolyl groups are aryl groups ... | Tolyl group | Chemistry | 212 |
2,526,903 | https://en.wikipedia.org/wiki/Isotopes%20of%20rhenium | Naturally occurring rhenium (75Re) is 37.4% 185Re, which is stable (although it is predicted to decay), and 62.6% 187Re, which is unstable but has a very long half-life (4.12×1010 years). Among elements with a known stable isotope, only indium and tellurium similarly occur with a stable isotope in lower abundance than ... | Isotopes of rhenium | Chemistry | 5,242 |
5,596,641 | https://en.wikipedia.org/wiki/Horse%20behavior | Horse behavior is best understood from the view that horses are prey animals with a well-developed fight-or-flight response. Their first reaction to a threat is often to flee, although sometimes they stand their ground and defend themselves or their offspring in cases where flight is untenable, such as when a foal wou... | Horse behavior | Biology | 5,083 |
66,647,902 | https://en.wikipedia.org/wiki/Leucopaxillus%20compactus | Leucopaxillus compactus is a species of fungus belonging to the family Tricholomataceae.
It is native to Europe.
References
Tricholomataceae
Fungus species | Leucopaxillus compactus | Biology | 38 |
6,069,126 | https://en.wikipedia.org/wiki/Time%20perception | In psychology and neuroscience, time perception or chronoception is the subjective experience, or sense, of time, which is measured by someone's own perception of the duration of the indefinite and unfolding of events. The perceived time interval between two successive events is referred to as perceived duration. Thoug... | Time perception | Physics | 6,803 |
56,066,942 | https://en.wikipedia.org/wiki/Disc%20cutting%20lathe | A disc cutting lathe is a device used to transfer an audio signal to the modulated spiral groove of a blank master disc for the production of phonograph records. Disc cutting lathes were also used to produce broadcast transcription discs and for direct-to-disc recording.
Overview
Disc cutting lathes utilize an audio s... | Disc cutting lathe | Technology | 676 |
42,174,704 | https://en.wikipedia.org/wiki/Pycnoporus%20coccineus | Pycnoporus coccineus is a saprophytic, white-rot decomposer fungus in the family Polyporaceae. A widely distributed species, the fungus was first described scientifically by Elias Magnus Fries in 1851. A study conducted by Couturier al et. (2015) concluded that the combined analysis of sugar and solid residues showed t... | Pycnoporus coccineus | Biology | 174 |
1,156,819 | https://en.wikipedia.org/wiki/Population%20ecology | Population ecology is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment, such as birth and death rates, and by immigration and emigration.
The discipline is important in conservation biology, especially in the development of population vi... | Population ecology | Mathematics | 3,086 |
27,902,531 | https://en.wikipedia.org/wiki/Duncan%27s%20taxonomy | Duncan's taxonomy is a classification of computer architectures, proposed by Ralph Duncan in 1990. Duncan suggested modifications to Flynn's taxonomy to include pipelined vector processes.
Taxonomy
The taxonomy was developed during 1988-1990 and was first published in 1990. Its original categories are indicated below.... | Duncan's taxonomy | Technology,Engineering | 821 |
51,917,610 | https://en.wikipedia.org/wiki/Allyltestosterone | Allyltestosterone, or 17α-allyltestosterone, also known as 17α-allylandrost-4-en-17β-ol-3-one, is a steroid derived from testosterone that was first synthesized in 1936 and was never marketed. Along with propyltestosterone (topterone), it has been patented as a topical antiandrogen and hair growth inhibitor. Allyltesto... | Allyltestosterone | Chemistry | 210 |
5,399,607 | https://en.wikipedia.org/wiki/Courtesy%20call | A courtesy call is a call or visit made out of politeness. It is usually done between two parties of high position such as a government official to meet and briefly discuss about important or concerning matters.
Diplomacy
In diplomacy, a courtesy call is a formal meeting in which a diplomat or representative or a famo... | Courtesy call | Biology | 595 |
49,134,790 | https://en.wikipedia.org/wiki/Frenkel%E2%80%93Kontorova%20model | The Frenkel–Kontorova (FK) model is a fundamental model of low-dimensional nonlinear physics.
The generalized FK model describes a chain of classical particles with nearest neighbor interactions and subjected to a periodic on-site substrate potential. In its original and simplest form the interactions are taken to be ... | Frenkel–Kontorova model | Physics,Materials_science | 1,867 |
45,692,661 | https://en.wikipedia.org/wiki/Low-power%20wide-area%20network | A low-power, wide-area network (LPWAN or LPWA network) is a type of wireless telecommunication wide area network designed to allow long-range communication at a low bit rate between IoT devices, such as sensors operated on a battery.
Low power, low bit rate, and intended use distinguish this type of network from a wir... | Low-power wide-area network | Technology,Engineering | 769 |
22,349,689 | https://en.wikipedia.org/wiki/Contextual%20empiricism | Contextual empiricism is a theory about validating scientific knowledge. It is the view that scientific knowledge is shaped by contextual values as well as constitutive ones.
See also
Scientific theory
Helen Longino
References
Empiricism
Metatheory of science
Social epistemology | Contextual empiricism | Technology | 60 |
172,331 | https://en.wikipedia.org/wiki/Gene%20pool | The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species.
Description
A large gene pool indicates extensive genetic diversity, which is associated with robust populations that can survive bouts of intense selection. Meanwhile, low genetic diversity (see inbreed... | Gene pool | Biology | 687 |
14,503,823 | https://en.wikipedia.org/wiki/Esophageal%20stent | An esophageal stent is a stent (tube) placed in the esophagus to keep a blocked area open so the patient can swallow soft food and liquids. They are effective in the treatment of conditions causing intrinsic esophageal obstruction or external esophageal compression. For the palliative treatment of esophageal cancer m... | Esophageal stent | Biology | 648 |
3,706,186 | https://en.wikipedia.org/wiki/Gusset | In sewing, a gusset is a triangular or rhomboidal piece of fabric inserted into a seam to add breadth or reduce stress from tight-fitting clothing. Gussets were used at the shoulders, underarms, and hems of traditional shirts and chemises made of rectangular lengths of linen to shape the garments to the body.
Gussets ... | Gusset | Technology | 422 |
5,447,226 | https://en.wikipedia.org/wiki/Current%20differencing%20buffered%20amplifier | A current differencing buffered amplifier (CDBA) is a multi-terminal active component with two inputs and two outputs and developed by Cevdet Acar and Serdar Özoğuz. Its block diagram can be seen from the figure. It is derived from the current feedback amplifier (CFA).
Basic operation
The characteristic equation of ... | Current differencing buffered amplifier | Technology | 425 |
39,932,177 | https://en.wikipedia.org/wiki/Shannon%20capacity%20of%20a%20graph | In graph theory, the Shannon capacity of a graph is a graph invariant defined from the number of independent sets of strong graph products. It is named after American mathematician Claude Shannon. It measures the Shannon capacity of a communications channel defined from the graph, and is upper bounded by the Lovász num... | Shannon capacity of a graph | Mathematics,Technology,Engineering | 1,676 |
41,288 | https://en.wikipedia.org/wiki/Inverse-square%20law | In science, an inverse-square law is any scientific law stating that the observed "intensity" of a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity. The fundamental cause for this can be understood as geometric dilution corresponding to point-... | Inverse-square law | Physics,Mathematics | 2,976 |
15,387 | https://en.wikipedia.org/wiki/Irreducible%20complexity | Irreducible complexity (IC) is the argument that certain biological systems with multiple interacting parts would not function if one of the parts were removed, so supposedly could not have evolved by successive small modifications from earlier less complex systems through natural selection, which would need all interm... | Irreducible complexity | Engineering,Biology | 11,009 |
76,436,818 | https://en.wikipedia.org/wiki/NGC%203985 | NGC 3985 is a barred spiral galaxy in the constellation Ursa Major. It is located at a distance of about 45 million light years from Earth, which, given its apparent dimensions, means that NGC 3726 is about 18,000 light years across. NGC 3985 is situated north of the celestial equator and, as such, it is more easily vi... | NGC 3985 | Astronomy | 189 |
75,977,697 | https://en.wikipedia.org/wiki/Swinnerton-Dyer%20polynomial | In algebra, the Swinnerton-Dyer polynomials are a family of polynomials, introduced by Peter Swinnerton-Dyer, that serve as examples where polynomial factorization algorithms have worst-case runtime. They have the property of being reducible modulo every prime, while being irreducible over the rational numbers. They ... | Swinnerton-Dyer polynomial | Mathematics | 172 |
7,092,764 | https://en.wikipedia.org/wiki/Characteristic%20mode%20analysis | Characteristic modes (CM) form a set of functions which, under specific boundary conditions, diagonalizes operator relating field and induced sources. Under certain conditions, the set of the CM is unique and complete (at least theoretically) and thereby capable of describing the behavior of a studied object in full.
... | Characteristic mode analysis | Physics,Mathematics | 1,229 |
52,768,889 | https://en.wikipedia.org/wiki/CSIRO%20Oceans%20and%20Atmosphere | CSIRO Oceans and Atmosphere (O&A) (2014–2022) was one of the then 8 Business Units (formerly: Flagships) of the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia's largest government-supported science research agency. In December 2022 it was merged with CSIRO Land and Water to form a singl... | CSIRO Oceans and Atmosphere | Physics,Biology,Environmental_science | 1,665 |
6,499,752 | https://en.wikipedia.org/wiki/Electrical%20fault | In an electric power system, a fault or fault current is any abnormal electric current. For example, a short circuit is a fault in which a live wire touches a neutral or ground wire. An open-circuit fault occurs if a circuit is interrupted by a failure of a current-carrying wire (phase or neutral) or a blown fuse or c... | Electrical fault | Technology,Engineering | 2,685 |
36,806,716 | https://en.wikipedia.org/wiki/Fort%20de%20Seclin | The Fort de Seclin, also known as Fort Duhoux, is located near the commune of Seclin, France, about south of Lille. Built from 1873 to 1875, it is part of the Séré de Rivières system of fortifications that France built following the defeat of the Franco-Prussian War. It was never modernized to cope with improvements i... | Fort de Seclin | Engineering | 571 |
58,443,580 | https://en.wikipedia.org/wiki/DG%20Tauri%20B | DG Tauri B, near the T Tauri star DG Tauri, is a young stellar object located 450 light-years (140 parsecs) from Earth, within the Taurus constellation. Observations of DG Tauri B were first made in October, and later December 1995 at the 6 element Owens Valley millimeter wave array. Its most notable characteristics ar... | DG Tauri B | Astronomy | 170 |
60,128,448 | https://en.wikipedia.org/wiki/NGC%20694 | NGC 694 is a spiral galaxy approximately 136 million light-years away from Earth in the constellation of Aries. It was discovered by German astronomer Heinrich Louis d'Arrest on December 2, 1861 with the 11-inch refractor at Copenhagen.
Nearby galaxies
NGC 694 is a member of a small galaxy group known as the NGC 691 ... | NGC 694 | Astronomy | 227 |
52,136,577 | https://en.wikipedia.org/wiki/Skeletocutis%20brunneomarginata | Skeletocutis brunneomarginata is a species of poroid crust fungus in the family Polyporaceae. Found in the United States, it was described as new to science in 2007 by Norwegian mycologist Leif Ryvarden. He collected the type in Bent Creek Experimental Forest, North Carolina in 2004. The fungus is very similar in appea... | Skeletocutis brunneomarginata | Biology | 145 |
20,680,975 | https://en.wikipedia.org/wiki/Idealized%20greenhouse%20model | The temperatures of a planet's surface and atmosphere are governed by a delicate balancing of their energy flows. The idealized greenhouse model is based on the fact that certain gases in the Earth's atmosphere, including carbon dioxide and water vapour, are transparent to the high-frequency solar radiation, but are m... | Idealized greenhouse model | Environmental_science | 1,763 |
28,290,110 | https://en.wikipedia.org/wiki/Haitian%20border%20threadsnake | The Haitian border threadsnake (Mitophis leptepileptus) is a possibly extinct species of snake in the family Leptotyphlopidae endemic to Haiti.
Description
Last seen in 1984, the species was thought to be already rare, but intensive surveys in the area have not recorded it. If it is extinct, causes are certainly due t... | Haitian border threadsnake | Biology | 114 |
38,196,037 | https://en.wikipedia.org/wiki/The%20Petroleum%20Dictionary | The Petroleum Dictionary is a dictionary covering terms used in the American oil industry. It was compiled by Lalia Phipps Boone and was first published by the University of Oklahoma Press in 1952.
Overview
The Petroleum Dictionary contains short definitions for around 6,000 terms used in the oil industry in America, ... | The Petroleum Dictionary | Chemistry | 382 |
6,852,964 | https://en.wikipedia.org/wiki/FastPath | The Kinetics FastPath was a LocalTalk-to-Ethernet bridge (now referred to as a router) created in 1985 to allow Apple Macintosh computers (which at the time only had LocalTalk network connections) to communicate with other computers on Ethernet networks. The product had five significant revisions (known as KFPS-1 thro... | FastPath | Technology,Engineering | 392 |
39,242,968 | https://en.wikipedia.org/wiki/B%C3%BCchner%E2%80%93Curtius%E2%80%93Schlotterbeck%20reaction | The Buchner–Curtius–Schlotterbeck reaction is the reaction of aldehydes or ketones with aliphatic diazoalkanes to form homologated ketones. It was first described by Eduard Buchner and Theodor Curtius in 1885 and later by Fritz Schlotterbeck in 1907. Two German chemists also preceded Schlotterbeck in discovery of the... | Büchner–Curtius–Schlotterbeck reaction | Chemistry | 1,836 |
6,397,823 | https://en.wikipedia.org/wiki/C7H8 | {{DISPLAYTITLE:C7H8}}
The molecular formula C7H8 (molar mass: 92.14 g/mol) may refer to:
Cycloheptatriene
Isotoluenes
Norbornadiene
Quadricyclane
Toluene, or toluol
Molecular formulas | C7H8 | Physics,Chemistry | 68 |
507,354 | https://en.wikipedia.org/wiki/Glossary%20of%20differential%20geometry%20and%20topology | This is a glossary of terms specific to differential geometry and differential topology. The following three glossaries are closely related:
Glossary of general topology
Glossary of algebraic topology
Glossary of Riemannian and metric geometry.
See also:
List of differential geometry topics
Words in italics denote a ... | Glossary of differential geometry and topology | Mathematics | 943 |
362,025 | https://en.wikipedia.org/wiki/Active%20noise%20control | Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eve... | Active noise control | Engineering | 1,451 |
179,098 | https://en.wikipedia.org/wiki/Racetrack%20%28game%29 | Racetrack is a paper and pencil game that simulates a car race, played by two or more players. The game is played on a squared sheet of paper, with a pencil line tracking each car's movement. The rules for moving represent a car with a certain inertia and physical limits on traction, and the resulting line is reminisce... | Racetrack (game) | Mathematics | 2,037 |
52,366,515 | https://en.wikipedia.org/wiki/Miaopai | Miaopai () is a Chinese video sharing and live streaming service with 70 million daily active users.
References
External links
Android (operating system) software
IOS software
Video software
Chinese social networking websites
Video hosting | Miaopai | Technology | 42 |
18,781,149 | https://en.wikipedia.org/wiki/Massey-Harris%20Model%2020 | The Massey-Harris Model 20 was a two-plow type of tractor built by Massey-Harris (later Massey Ferguson) from 1946 to 1948. Introduced to commemorate Massey's 100th anniversary in 1947, the 20 was virtually identical to the earlier Model 81, which had first appeared in 1941. About 8,000 Model 20s were sold, in row crop... | Massey-Harris Model 20 | Engineering | 471 |
2,596,238 | https://en.wikipedia.org/wiki/Shock%20response%20spectrum | A Shock Response Spectrum (SRS) is a graphical representation of a shock, or any other transient acceleration input, in terms of how a Single Degree Of Freedom (SDOF) system (like a mass on a spring) would respond to that input. The horizontal axis shows the natural frequency of a hypothetical SDOF, and the vertical a... | Shock response spectrum | Physics,Engineering | 862 |
10,088,964 | https://en.wikipedia.org/wiki/Remote%20graphics%20unit | A remote graphics unit (RGU) is a device that allows a computer to be separated from some input/output devices such as keyboard, mouse, speakers, and display monitors. The key part being remoted is the graphics sub-system of the computer.
History
RGUs may have their origin with experiments with graphics controllers o... | Remote graphics unit | Technology | 471 |
31,911,164 | https://en.wikipedia.org/wiki/Deferribacter | Deferribacter is a genus in the phylum Deferribacterota (Bacteria).
Etymology
The name Deferribacter derives from:Latin pref. de-, from; Latin noun ferrum, iron; Neo-Latin masculine gender noun, a rodbacter, nominally meaning "a rod", but in effect meaning a bacterium, rod; Neo-Latin masculine gender noun Deferribacte... | Deferribacter | Biology | 342 |
25,603 | https://en.wikipedia.org/wiki/Rhenium | Rhenium is a chemical element; it has symbol Re and atomic number 75. It is a silvery-gray, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. It has one of the highest melti... | Rhenium | Physics,Chemistry | 4,293 |
6,022,800 | https://en.wikipedia.org/wiki/Hendrik%20Kloosterman | Hendrik Douwe Kloosterman (9 April 1900 – 6 May 1968) was a Dutch mathematician, known for his work in number theory (in particular, for introducing Kloosterman sums) and in representation theory.
After completing his master's degree at Leiden University from 1918–1922 he studied at the University of Copenhagen with H... | Hendrik Kloosterman | Mathematics | 222 |
23,652,040 | https://en.wikipedia.org/wiki/WaveLab%20%28mathematics%20software%29 | WaveLab is a collection of MATLAB functions for wavelet analysis. Following the success of WaveLab package, there is now the availability of CurveLab and ShearLab.
Wavelets | WaveLab (mathematics software) | Mathematics | 38 |
32,678 | https://en.wikipedia.org/wiki/Vocoder | A vocoder (, a portmanteau of voice and encoder) is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation.
The vocoder was invented in 1938 by Homer Dudley at Bell Labs as a means of synthesizing human speech.... | Vocoder | Technology,Engineering | 3,963 |
60,586,206 | https://en.wikipedia.org/wiki/Plan%20Voisin | The Plan Voisin was a planned redevelopment of Paris designed by French-Swiss architect Le Corbusier in 1925. The redevelopment was planned to replace a large area of central Paris, on the Right Bank of the River Seine. Although it was never implemented, the project is one of Le Corbusier's most well known; its princip... | Plan Voisin | Engineering | 1,135 |
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