id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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17,591,563 | https://en.wikipedia.org/wiki/E%20chart | An E chart, also known as a tumbling E chart, is an eye chart used to measure a patient's visual acuity.
Uses
This chart does not depend on a patient's easy familiarity with a particular writing system (such as the Latin alphabet). This is often desirable, for instance with very young children. This also allows use wi... | E chart | Mathematics | 189 |
2,075,950 | https://en.wikipedia.org/wiki/Process%20%28anatomy%29 | In anatomy, a process () is a projection or outgrowth of tissue from a larger body. For instance, in a vertebra, a process may serve for muscle attachment and leverage (as in the case of the transverse and spinous processes), or to fit (forming a synovial joint), with another vertebra (as in the case of the articular p... | Process (anatomy) | Biology | 473 |
18,650,576 | https://en.wikipedia.org/wiki/PlanMaker | PlanMaker is a spreadsheet program that is part of the SoftMaker Office suite. It is available on Microsoft Windows, MacOS, Linux and Android and iOS.
PlanMaker is largely similar to Microsoft Excel in function and workflow and uses the same file format .xlsx. The syntax of the formulas is identical, pivot tables are ... | PlanMaker | Mathematics | 166 |
68,825,404 | https://en.wikipedia.org/wiki/Rhizostomins | Rhizostomins are proteins that are part of a pigment family only found in jellyfish in the order Rhizostomeae. These proteins are composed of a Kringle domain inserted within a cysteine-rich Frizzled domain, first identified in 2004 as the blue pigment in the barrel jellyfish Rhizostoma pulmo. It also appears in rhizos... | Rhizostomins | Biology | 179 |
39,441,867 | https://en.wikipedia.org/wiki/Leelamine | Leelamine (dehydroabietylamine) is a diterpene amine that has weak affinity for the cannabinoid receptors CB1 and CB2, as well as being an inhibitor of pyruvate dehydrogenase kinase. Optically active leelamine is also used as a chiral resolving agent for carboxylic acids. Leelamine has been shown to be effective again... | Leelamine | Chemistry | 174 |
40,546,894 | https://en.wikipedia.org/wiki/Signal-to-interference-plus-noise%20ratio | In information theory and telecommunication engineering, the signal-to-interference-plus-noise ratio (SINR) (also known as the signal-to-noise-plus-interference ratio (SNIR)) is a quantity used to give theoretical upper bounds on channel capacity (or the rate of information transfer) in wireless communication systems... | Signal-to-interference-plus-noise ratio | Mathematics,Technology,Engineering | 967 |
47,477,895 | https://en.wikipedia.org/wiki/Cape%20Provinces | The Cape Provinces of South Africa is a biogeographical area used in the World Geographical Scheme for Recording Plant Distributions (WGSRPD). It is part of the WGSRPD region 27 Southern Africa. The area has the code "CPP". It includes the South African provinces of the Eastern Cape, the Northern Cape and the Western C... | Cape Provinces | Biology | 148 |
696,066 | https://en.wikipedia.org/wiki/Beatrice%20M.%20Tinsley%20Prize | The Beatrice M. Tinsley Prize is awarded every other year by the American Astronomical Society in recognition of an outstanding research contribution to astronomy or astrophysics of an exceptionally creative or innovative character. The prize is named in honor of the cosmologist and astronomer Beatrice Tinsley.
The p... | Beatrice M. Tinsley Prize | Astronomy,Technology | 470 |
11,633,574 | https://en.wikipedia.org/wiki/G%20117-B15A | G117-B15A is a small, well-observed variable white dwarf star of the DAV, or ZZ Ceti, type in the constellation of Leo Minor.
G117-B15A was found to be variable in 1974 by Richer and Ulrych, and this was confirmed in 1976 by McGraw and Robinson. In 1984 it was demonstrated that the star's variability is due to nonrad... | G 117-B15A | Astronomy | 268 |
8,500,320 | https://en.wikipedia.org/wiki/Chervone-Pustohorod | Chervone-Pustohorod () was an airfield in Ukraine located 22 km northeast of Hlukhiv. It was built as a forward operating base for wartime use.
It is named after a town of Esman that in 1957–2016 was known as Chervone.
References
RussianAirFields.com
Airports in Ukraine
Transport in Sumy Oblast | Chervone-Pustohorod | Physics | 74 |
531,587 | https://en.wikipedia.org/wiki/Depolarization | In biology, depolarization or hypopolarization is a change within a cell, during which the cell undergoes a shift in electric charge distribution, resulting in less negative charge inside the cell compared to the outside. Depolarization is essential to the function of many cells, communication between cells, and the ov... | Depolarization | Chemistry | 2,586 |
36,751,542 | https://en.wikipedia.org/wiki/Flowers%20of%20the%20Four%20Seasons | The Flowers of the Four Seasons () are a traditional grouping of flowers found in Chinese culture that spread to and influenced other East Asian arts.
In Chinese art and culture, the flowers that represent the four seasons consist of:
(春兰) Chūnlán – Spring – orchid
(夏荷) Xiahé – Summer – lotus
(秋菊) Qiūjú – Autumn –... | Flowers of the Four Seasons | Mathematics | 193 |
2,903,699 | https://en.wikipedia.org/wiki/45%20Bo%C3%B6tis | 45 Boötis is a single star located 63 light years away from the Sun in the northern constellation of Boötes. It has the Bayer designation c Boötis; 45 Boötis is the Flamsteed designation. This body is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 4.93. It has a relativ... | 45 Boötis | Astronomy | 351 |
325,028 | https://en.wikipedia.org/wiki/Technological%20escalation | Technological escalation describes the situation where two parties in competition tend to employ continual technological improvements in their attempt to defeat each other. Technology is defined here as a creative invention, either in the form of an object or a methodology. An example is the mutual escalation seen bet... | Technological escalation | Biology | 157 |
3,879,454 | https://en.wikipedia.org/wiki/Pitch%20angle%20%28particle%20motion%29 | The pitch angle of a charged particle is the angle between the particle's velocity vector and the local magnetic field. This is a common measurement and topic when studying the magnetosphere, magnetic mirrors, biconic cusps and polywells. See Aurora and Ring current
Usage: particle motion
It is customary to discuss ... | Pitch angle (particle motion) | Physics | 332 |
435,760 | https://en.wikipedia.org/wiki/Telophase | Telophase () is the final stage in both meiosis and mitosis in a eukaryotic cell. During telophase, the effects of prophase and prometaphase (the nucleolus and nuclear membrane disintegrating) are reversed. As chromosomes reach the cell poles, a nuclear envelope is re-assembled around each set of chromatids, the nucleo... | Telophase | Biology | 2,929 |
19,181,338 | https://en.wikipedia.org/wiki/Ackermann%E2%80%93Teubner%20Memorial%20Award | The Alfred Ackermann–Teubner Memorial Award for the Promotion of Mathematical Sciences recognized work in mathematical analysis. It was established in 1912 by engineer Alfred Ackermann-Teubner and was an endowment of the University of Leipzig.
It was awarded 14 times between 1914 and 1941. Subsequent awards were to b... | Ackermann–Teubner Memorial Award | Technology | 323 |
5,594,272 | https://en.wikipedia.org/wiki/Slush | Slush, also called slush ice, is a slurry mixture of small ice crystals (e.g. snow) and liquid water.
In the natural environment, slush forms when ice or snow melts or during mixed precipitation. This often mixes with dirt and other pollutants on the surface, resulting in a gray or muddy brown color. Often, solid ice ... | Slush | Physics,Chemistry | 402 |
63,468,037 | https://en.wikipedia.org/wiki/Estrone%20phosphate | Estrone phosphate (E1P), or estrone 3-phosphate, is an estrogen and steroid sulfatase inhibitor which was never marketed. It has similar affinity for steroid sulfatase as estrone sulfate and acts as a competitive inhibitor of the enzyme. In contrast to estrone sulfate however, it is not hydrolyzed by steroid sulfatase ... | Estrone phosphate | Chemistry | 141 |
575,603 | https://en.wikipedia.org/wiki/Five%20Suns | In creation myths, the term "Five Suns" refers to the belief of certain Nahua cultures and Aztec peoples that the world has gone through five distinct cycles of creation and destruction, with the current era being the fifth. It is primarily derived from a combination of myths, cosmologies, and eschatological beliefs th... | Five Suns | Astronomy | 3,096 |
13,552,978 | https://en.wikipedia.org/wiki/Behavioral%20confirmation | Behavioral confirmation is a type of self-fulfilling prophecy whereby people's social expectations lead them to behave in ways that cause others to confirm their expectations. The phenomenon of belief creating reality is known by several names in literature: self-fulfilling prophecy, expectancy confirmation, and behavi... | Behavioral confirmation | Biology | 1,390 |
74,819 | https://en.wikipedia.org/wiki/Pupil | The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil. The ... | Pupil | Biology | 2,574 |
76,683,450 | https://en.wikipedia.org/wiki/IC%205337 | IC 5337 or JW100, is a spiral galaxy located 800 million light-years away from the Solar System in the constellation of Pegasus.
It was discovered by French astronomer, Stephane Javelle on November 25, 1897 and is probably gravitationally bound to IC 5338, the brightest cluster galaxy in Abell 2626. According to SIMB... | IC 5337 | Astronomy | 229 |
3,838,745 | https://en.wikipedia.org/wiki/Solaris%20IP%20network%20multipathing | The IP network multipathing or IPMP is a facility provided by Solaris to provide fault-tolerance and load spreading for network interface cards (NICs). With IPMP, two or more NICs are dedicated for each network to which the host connects. Each interface can be assigned a static "test" IP address, which is used to asses... | Solaris IP network multipathing | Technology,Engineering | 235 |
472,972 | https://en.wikipedia.org/wiki/Vera%20Rubin | Vera Florence Cooper Rubin (; July 23, 1928 – December 25, 2016) was an American astronomer who pioneered work on galaxy rotation rates. She uncovered the discrepancy between the predicted and observed angular motion of galaxies by studying galactic rotation curves. These results were later confirmed over subsequent de... | Vera Rubin | Physics,Astronomy | 3,101 |
2,861,044 | https://en.wikipedia.org/wiki/Land%20description | In surveying and property law, a land description or legal description is a written statement that delineates the boundaries of a piece of real property. In the written transfer of real property, it is universally required that the instrument of conveyance (deed) include a written description of the property.
Legal la... | Land description | Engineering | 483 |
28,366,048 | https://en.wikipedia.org/wiki/Couchbase%20Server | Couchbase Server, originally known as Membase, is a source-available, distributed (shared-nothing architecture) multi-model NoSQL document-oriented database software package optimized for interactive applications. These applications may serve many concurrent users by creating, storing, retrieving, aggregating, manipula... | Couchbase Server | Technology | 1,845 |
62,149 | https://en.wikipedia.org/wiki/Custard | Custard is a variety of culinary preparations based on sweetened milk, cheese, or cream cooked with egg or egg yolk to thicken it, and sometimes also flour, corn starch, or gelatin. Depending on the recipe, custard may vary in consistency from a thin pouring sauce () to the thick pastry cream () used to fill éclairs. T... | Custard | Technology | 2,043 |
338,129 | https://en.wikipedia.org/wiki/Plateau%27s%20problem | In mathematics, Plateau's problem is to show the existence of a minimal surface with a given boundary, a problem raised by Joseph-Louis Lagrange in 1760. However, it is named after Joseph Plateau who experimented with soap films. The problem is considered part of the calculus of variations. The existence and regulari... | Plateau's problem | Chemistry,Mathematics | 703 |
216,967 | https://en.wikipedia.org/wiki/Distributed%20Management%20Task%20Force | Distributed Management Task Force (DMTF) is a 501(c)(6) nonprofit industry standards organization that creates open manageability standards spanning diverse emerging and traditional IT infrastructures including cloud, virtualization, network, servers and storage. Member companies and alliance partners collaborate on st... | Distributed Management Task Force | Technology,Engineering | 574 |
29,474,849 | https://en.wikipedia.org/wiki/Bredolab%20botnet | The Bredolab botnet, also known by its alias Oficla, was a Russian botnet mostly involved in viral e-mail spam. Before the botnet was eventually dismantled in November 2010 through the seizure of its command and control servers, it was estimated to consist of millions of zombie computers.
The countries most affected b... | Bredolab botnet | Technology,Engineering | 696 |
1,800,046 | https://en.wikipedia.org/wiki/Rho%20Cassiopeiae | Rho Cassiopeiae (; ρ Cas, ρ Cassiopeiae) is a yellow hypergiant star in the constellation Cassiopeia. It is about from Earth, yet can still be seen by the naked eye as it is over 300,000 times brighter than the Sun. On average it has an absolute magnitude of −9.5, making it visually one of the most luminous stars know... | Rho Cassiopeiae | Astronomy | 1,458 |
1,758,910 | https://en.wikipedia.org/wiki/James%20Walker%20%28engineer%29 | James Walker (14 September 1781 – 8 October 1862) was an influential British civil engineer and contractor.
Life
Born in Law Wynd in Falkirk, the eldest of five children of John Walker and his wife Margaret, James was educated at the local school and was sent to Glasgow University in October 1794, aged 13. He studie... | James Walker (engineer) | Engineering | 1,297 |
31,643,910 | https://en.wikipedia.org/wiki/Split%20interval | In topology, the split interval, or double arrow space, is a topological space that results from splitting each point in a closed interval into two adjacent points and giving the resulting ordered set the order topology. It satisfies various interesting properties and serves as a useful counterexample in general topol... | Split interval | Mathematics | 537 |
38,574,264 | https://en.wikipedia.org/wiki/Link-Systems%20International | Link-Systems International, Inc. (LSI) is a privately held American distance-learning software corporation based in Tampa, Florida. The company is best known for NetTutor, its online tutoring service; WorldWideTestbank, its platform for authoring online content; and its WorldWideWhiteboard education-focused online coll... | Link-Systems International | Mathematics | 2,086 |
25,344,564 | https://en.wikipedia.org/wiki/Sulphobes | A sulphobe is a film composed of formaldehyde and thiocyanates alleged to have lifelike properties. The name is a portmanteau of sulphur microbe. Sulphobes were a subject in the researches of Alfonso L. Herrera, a biologist who studied the origin of life.
References
Further reading
Evolutionarily significant bi... | Sulphobes | Biology | 81 |
43,602,880 | https://en.wikipedia.org/wiki/Purchase%20and%20sale%20agreement | A purchase and sale agreement (PSA), also called a sales and purchase agreement (SPA) or an agreement for purchase and sale (APS), is an agreement between a buyer and a seller of real estate property, company stock, or other assets.
The person, company, or other legal entity acquiring, receiving, and purchasing the pr... | Purchase and sale agreement | Chemistry | 206 |
55,903,753 | https://en.wikipedia.org/wiki/Lakhori%20bricks | Lakhori bricks (also Badshahi bricks, Kakaiya bricks, Lakhauri bricks) are flat, thin, red burnt-clay bricks, originating from Lahore, Pakistan that became increasingly popular element of Mughal architecture during Shah Jahan, and remained so till early 20th century when lakhori bricks and similar Nanak Shahi bricks we... | Lakhori bricks | Physics,Engineering | 1,361 |
241,154 | https://en.wikipedia.org/wiki/Cross-site%20scripting | Cross-site scripting (XSS) is a type of security vulnerability that can be found in some web applications. XSS attacks enable attackers to inject client-side scripts into web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin poli... | Cross-site scripting | Technology | 3,628 |
1,708,811 | https://en.wikipedia.org/wiki/Matt%20Nagle | Matthew Nagle (October 16, 1979 – July 24, 2007) was the first person to use a brain–computer interface to restore functionality lost due to paralysis. He was a C3 tetraplegic, paralyzed from the neck down after being stabbed.
Biography
Nagle attended Weymouth High School (Class of 1998). He was an exceptional athlete... | Matt Nagle | Biology | 661 |
8,249,355 | https://en.wikipedia.org/wiki/The%20Cham-Cham | "The Cham-Cham" is the 25th episode of Thunderbirds, a British Supermarionation television series created by Gerry and Sylvia Anderson and filmed by their production company AP Films (APF). The penultimate episode of Thunderbirds Series One, it was written and directed by Alan Pattillo and first broadcast on 24 March 1... | The Cham-Cham | Technology | 2,610 |
71,184,920 | https://en.wikipedia.org/wiki/Oxalate%20sulfate | Oxalate sulfates are mixed anion compounds containing oxalate and sulfate. They are mostly transparent, and any colour comes from the cations.
Related compounds include the sulfite oxalates and oxalate selenates.
Production
Oxalate sulfates may be deposited from a solution in water of the metal anions and sulfate wi... | Oxalate sulfate | Physics,Chemistry | 141 |
31,614,353 | https://en.wikipedia.org/wiki/History%20of%20pharmacy | The history of pharmacy as a modern and independent science dates back to the first third of the 19th century. Before then, pharmacy evolved from antiquity as part of medicine. Before the advent of pharmacists, there existed apothecaries that worked alongside priests and physicians in regard to patient care.
Prehistor... | History of pharmacy | Chemistry,Biology | 3,019 |
77,901,927 | https://en.wikipedia.org/wiki/SPR741 | SPR741 is an experimental antibiotic related to Polymyxin B. It shows activity against a number of bacterial pathogens, especially Acinetobacter baumannii and Klebsiella pneumoniae, acting as an antibiotic adjuvant which disrupts the outer membrane of Gram-negative bacteria and allows other antibiotics to more effectiv... | SPR741 | Biology | 93 |
10,971,432 | https://en.wikipedia.org/wiki/Methylglyoxal%20pathway | The methylglyoxal pathway is an offshoot of glycolysis found in some prokaryotes, which converts glucose into methylglyoxal and then into pyruvate. However unlike glycolysis the methylglyoxal pathway does not produce adenosine triphosphate, ATP. The pathway is named after the substrate methylglyoxal which has three c... | Methylglyoxal pathway | Chemistry,Biology | 1,187 |
35,925,493 | https://en.wikipedia.org/wiki/Three-surface%20aircraft | A three-surface aircraft or sometimes three-lifting-surface aircraft has a foreplane, a central wing and a tailplane. The central wing surface always provides lift and is usually the largest, while the functions of the fore and aft planes may vary between types and may include lift, control and/or stability.
In civil ... | Three-surface aircraft | Engineering | 3,757 |
66,819 | https://en.wikipedia.org/wiki/Root%20mean%20square | In mathematics, the root mean square (abbrev. RMS, or rms) of a set of numbers is the square root of the set's mean square.
Given a set , its RMS is denoted as either or . The RMS is also known as the quadratic mean (denoted ), a special case of the generalized mean. The RMS of a continuous function is denoted and c... | Root mean square | Physics,Mathematics | 1,971 |
998,456 | https://en.wikipedia.org/wiki/Chloralkali%20process | The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride (NaCl) solutions. It is the technology used to produce chlorine and sodium hydroxide (caustic soda), which are commodity chemicals required by industry. Thirty five million tons of chlorine were... | Chloralkali process | Chemistry | 2,061 |
10,001,714 | https://en.wikipedia.org/wiki/Lightweight%20programming%20language | Lightweight programming languages are designed to have small memory footprint, are easy to implement (important when porting a language to different computer systems), and/or have minimalist syntax and features.
These programming languages have simple syntax and semantics, so one can learn them quickly and easily. Som... | Lightweight programming language | Technology,Engineering | 450 |
33,925,022 | https://en.wikipedia.org/wiki/J.%20W.%20Jenkinson%20Memorial%20Lectureship | John Wilfred Jenkinson (1871–1915) was a pioneer in the field of comparative developmental biology (the forerunner of evolutionary developmental biology) and one of the first to introduce experimental embryology to the UK at the start of the 20th century. He originally studied Classics as an undergraduate student at Ox... | J. W. Jenkinson Memorial Lectureship | Biology | 1,028 |
28,066,243 | https://en.wikipedia.org/wiki/Legal%20drug%20trade | Legal drug trade, as with other goods object of commerce, in opposition to smuggling or illegal drug trade, most psychotropic substances' commerce is under control and taxation by world governments, regardless of the relative perceived danger of the goods that are the object of legislation.
Legal commerce in drugs can ... | Legal drug trade | Chemistry | 591 |
3,284,448 | https://en.wikipedia.org/wiki/Symmetric%20Phase%20Recording | Symmetric Phase Recording is a tape recording (computer storage media) technology developed by Quantum Corporation packs data across a tape's recording surface by writing adjacent tracks in a herringbone pattern:
track 0 = \\\\\, track 1 = /////, track 2 = \\\\\, track 3 = /////, etc.
This eliminates crosstrack inter... | Symmetric Phase Recording | Technology | 142 |
9,002,006 | https://en.wikipedia.org/wiki/Conference%20room%20pilot | Conference room pilot (CRP) is a type of software procurement and software acceptance testing. A CRP may be used during the selection and implementation of a software application in an organization or company.
The purpose of the conference room pilot is to validate a software application against the business processes... | Conference room pilot | Engineering | 526 |
38,454,237 | https://en.wikipedia.org/wiki/CAMECA | CAMECA is a manufacturer of scientific instruments, namely material analysis instruments based on charged particle beam, ions, or electrons.
History
The company was founded as a subsidiary of Compagnie générale de la télégraphie sans fil (CSF), in 1929, as "Radio-cinéma" at the time of the emergence of the talkies. T... | CAMECA | Engineering | 663 |
3,327,704 | https://en.wikipedia.org/wiki/Peroneal%20strike | A peroneal strike is a temporarily disabling blow to the common fibular (peroneal) nerve of the leg, just above the knee. The attacker aims roughly a hand span above the exterior side of the knee, towards the back of the leg. This causes a temporary loss of motor control of the leg, accompanied by numbness and a painfu... | Peroneal strike | Biology | 184 |
68,502,959 | https://en.wikipedia.org/wiki/Tentai%20Show | Tentai Show (Japanese: 天体ショー tentai shō), also known by the names Tentaisho, Galaxies, Spiral Galaxies, or Sym-a-Pix, is a binary-determination logic puzzle published by Nikoli.
Rules
Tentai Show is played on a rectangular grid of squares. On the grid are dots representing stars, which can be found on the grid either ... | Tentai Show | Mathematics | 731 |
22,118,406 | https://en.wikipedia.org/wiki/Nokia%206250 | The Nokia 6250 is a mobile phone made by Nokia. It has been available since 2000. It is a more rugged version of the Nokia 6210 phone. It has a monochrome graphic LCD display of resolution 96 x 60 pixels. Its memory can hold up to 500 phone book records with up to three numbers per name, and up to 150 text messages (... | Nokia 6250 | Technology | 110 |
31,114,557 | https://en.wikipedia.org/wiki/Pleurotus%20citrinopileatus | Pleurotus citrinopileatus, the golden oyster mushroom (tamogitake in Japanese), is an edible gilled fungus. Native to eastern Russia, northern China, and Japan, the golden oyster mushroom is very closely related to P. cornucopiae of Europe, with some authors considering them to be at the rank of subspecies. In far east... | Pleurotus citrinopileatus | Biology | 854 |
24,201,104 | https://en.wikipedia.org/wiki/C22H18O12 | {{DISPLAYTITLE:C22H18O12}}
The molecular formula C22H18O12 (molar mass: 474.371 g/mol) may refer to:
Chicoric acid
Succinprotocetraric acid
Molecular formulas | C22H18O12 | Physics,Chemistry | 58 |
651,031 | https://en.wikipedia.org/wiki/Toilet%20training | Toilet training (also potty training or toilet learning) is the process of training someone, particularly a toddler or infant, to use the toilet for urination and defecation. Attitudes toward training in recent history have fluctuated substantially, and may vary across cultures and according to demographics. Many of th... | Toilet training | Biology | 2,986 |
997,409 | https://en.wikipedia.org/wiki/Deacon%20process | The Deacon process, invented by Henry Deacon, is a process used during the manufacture of alkalis (the initial end product was sodium carbonate) by the Leblanc process. Hydrogen chloride gas was converted to chlorine gas, which was then used to manufacture a commercially valuable bleaching powder, and at the same time... | Deacon process | Chemistry | 560 |
14,897,216 | https://en.wikipedia.org/wiki/Episodic%20tremor%20and%20slip | Episodic tremor and slip (ETS) is a seismological phenomenon observed in some subduction zones that is characterized by non-earthquake seismic rumbling, or tremor, and slow slip along the plate interface. Slow slip events are distinguished from earthquakes by their propagation speed and focus. In slow slip events, the... | Episodic tremor and slip | Physics | 1,444 |
39,701,308 | https://en.wikipedia.org/wiki/INT%20%28chemical%29 | INT (iodonitrotetrazolium or 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium) is a commonly used tetrazolium salt (usually prepared with chloride ions), similar to tetrazolium chloride that on reduction produces a red formazan dye that can be used for quantitative redox assays. It is also toxic to prokaryot... | INT (chemical) | Chemistry,Biology | 217 |
9,481,589 | https://en.wikipedia.org/wiki/Photo%2051 | Photo 51 is an X-ray based fiber diffraction image of a paracrystalline gel composed of DNA fiber taken by Raymond Gosling, a postgraduate student working under the supervision of Maurice Wilkins and Rosalind Franklin at King's College London, while working in Sir John Randall's group. The image was tagged "photo 51" b... | Photo 51 | Chemistry,Materials_science | 1,095 |
10,217,683 | https://en.wikipedia.org/wiki/Ampex%20601 | The Ampex 601 was a portable, analog, reel-to-reel tape recorder produced by The Ampex Corporation from the mid-1950s through the 1960s. Ampex manufactured a single-channel model (the 601) and dual-channel version (the 601-2). The suitcase-sized, 26 lb. unit was designed for the professional recording applications. ... | Ampex 601 | Technology | 464 |
38,323,622 | https://en.wikipedia.org/wiki/Snub%20trioctagonal%20tiling | In geometry, the order-3 snub octagonal tiling is a semiregular tiling of the hyperbolic plane. There are four triangles, one octagon on each vertex. It has Schläfli symbol of sr{8,3}.
Images
Drawn in chiral pairs, with edges missing between black triangles:
Related polyhedra and tilings
This semiregular tiling is ... | Snub trioctagonal tiling | Physics,Chemistry | 378 |
1,989,818 | https://en.wikipedia.org/wiki/Oxbow |
An oxbow is a U-shaped metal pole (or larger wooden frame) that fits the underside and the sides of the neck of an ox or bullock. A bow pin holds it in place.
The term "oxbow" is widely used to refer to a U-shaped meander in a river, sometimes cut off from the modern course of the river that formed it, creating an ... | Oxbow | Biology | 319 |
1,214,456 | https://en.wikipedia.org/wiki/Master%20control | Master control is the technical hub of a broadcast operation common among most over-the-air television stations and television networks. It is distinct from a production control room (PCR) in television studios where the activities such as switching from camera to camera are coordinated. A transmission control room (TC... | Master control | Engineering | 438 |
70,258,560 | https://en.wikipedia.org/wiki/Cairo%20Citadel%20Clock | The Cairo Citadel Clock is a 19th century French clock tower situated at the Cairo Citadel, and Egypt's first public ticking clock.
For many decades, the clock was famous for not working. Various attempts were made to fix the clock in the 20th century; a repair was ordered by King Farouk in 1943 and in 1984 under Pre... | Cairo Citadel Clock | Physics,Technology,Engineering | 590 |
25,560,578 | https://en.wikipedia.org/wiki/Metamaterial%20cloaking | Metamaterial cloaking is the usage of metamaterials in an invisibility cloak. This is accomplished by manipulating the paths traversed by light through a novel optical material. Metamaterials direct and control the propagation and transmission of specified parts of the light spectrum and demonstrate the potential to re... | Metamaterial cloaking | Physics,Materials_science,Engineering | 7,025 |
47,490,358 | https://en.wikipedia.org/wiki/Solar%20phenomena | Solar phenomena are natural phenomena which occur within the atmosphere of the Sun. They take many forms, including solar wind, radio wave flux, solar flares, coronal mass ejections, coronal heating and sunspots.
These phenomena are believed to be generated by a helical dynamo, located near the center of the Sun's mas... | Solar phenomena | Physics,Astronomy | 4,404 |
51,703,470 | https://en.wikipedia.org/wiki/Ganaplacide | Ganaplacide (development codename KAF156) is a drug in development by Novartis for the purpose of treating malaria. It is a imidazolopiperazine derivative. It has shown activity against the Plasmodium falciparum and Plasmodium vivax forms of the malaria parasite.
Clinical development
The antimalarial activity of the... | Ganaplacide | Chemistry | 681 |
8,302,382 | https://en.wikipedia.org/wiki/Contraharmonic%20mean | In mathematics, a contraharmonic mean (or antiharmonic mean) is a function complementary to the harmonic mean. The contraharmonic mean is a special case of the Lehmer mean, , where p = 2.
Definition
The contraharmonic mean of a set of positive real numbers is defined as the arithmetic mean of the squares of the numb... | Contraharmonic mean | Physics,Mathematics | 1,112 |
35,861,790 | https://en.wikipedia.org/wiki/Mississippi%20River%20Basin%20Model | The Mississippi River Basin Model was a large-scale hydraulic model of the entire Mississippi River basin, covering an area of 200 acres. It is part of the Waterways Experiment Station, located near Clinton, Mississippi. The model was built from 1943 to 1966 and in operation from 1949 until 1973. By comparison, the be... | Mississippi River Basin Model | Physics,Engineering,Biology,Environmental_science | 1,249 |
64,217,569 | https://en.wikipedia.org/wiki/Jacqueline%20Krim | Jacqueline Krim is an American condensed matter physicist specializing in nanotribology, the study of film growth, friction, and wetting of nanoscale surfaces. She is a Distinguished University Professor of Physics at North Carolina State University.
Education and career
Krim graduated from the University of Montana i... | Jacqueline Krim | Materials_science | 306 |
41,496 | https://en.wikipedia.org/wiki/Pseudo%20bit%20error%20ratio | Pseudo bit error ratio (PBER) in adaptive high-frequency (HF) radio, is a bit error ratio derived by a majority decoder that processes redundant transmissions.
Note: In adaptive HF radio automatic link establishment, PBER is determined by the extent of error correction, such as by using the fraction of non-unanimous... | Pseudo bit error ratio | Mathematics,Engineering | 87 |
71,058,412 | https://en.wikipedia.org/wiki/International%20Liquid%20Mirror%20Telescope | The International Liquid Mirror Telescope is a 4-meter telescope in Uttarakhand, India. It is the first liquid-mirror telescope for astronomy in Asia and the largest liquid-mirror telescope in Asia.
History
On 2 June 2022, the telescope saw its first light. On 12 June 2022, it came online. On 21 June 2022, it became r... | International Liquid Mirror Telescope | Astronomy | 157 |
75,216,955 | https://en.wikipedia.org/wiki/Stigmidium%20cerinae | Stigmidium cerinae is a species of lichenicolous (lichen-dwelling) fungus in the family Mycosphaerellaceae. It was formally described as a new species in 1994 by mycologists Claude Roux and Dagmar Triebel. The type specimen was collected in Austria from the apothecia of the muscicolous (moss-dwelling) species Caloplaca... | Stigmidium cerinae | Biology | 618 |
72,953,248 | https://en.wikipedia.org/wiki/Meritxell%20Huch | Meritxell Huch (Barcelona, 1978) is a stem cell biologist and director at the Max Planck Institute of Molecular Cell Biology and Genetics. Her research considers tissue regeneration and the development of tissue-specific disease models for human organs. She was awarded a European Research Council Consolidator Grant in ... | Meritxell Huch | Biology | 510 |
42,327,977 | https://en.wikipedia.org/wiki/Comparator%20applications | A comparator is an electronic component that compares two input voltages. Comparators are closely related to operational amplifiers, but a comparator is designed to operate with positive feedback and with its output saturated at one power rail or the other. If necessary, an op-amp can be pressed into service as a poorl... | Comparator applications | Technology,Engineering | 817 |
1,126,111 | https://en.wikipedia.org/wiki/Photosystem%20I | Photosystem I (PSI, or plastocyanin–ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. Photosystem I is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plas... | Photosystem I | Chemistry,Biology | 1,664 |
16,796,930 | https://en.wikipedia.org/wiki/HD%20213240%20b | HD 213240 b is an exoplanet located from the Solar System in the constellation of Grus. It is a gas giant orbiting the G-type star HD 213240.
The planet was discovered in 2001 as part of the CORALIE extra-solar planet search program. It was described in a 2001 publication by astronomers N. C. Santos, M. Mayor, D. Na... | HD 213240 b | Astronomy | 189 |
34,992,890 | https://en.wikipedia.org/wiki/Franca%20IDL | Franca Interface Definition Language (Franca IDL) is a formally defined, text-based interface description language. It is part of the Franca framework, which is a framework for definition and transformation of software interfaces. Franca applies model transformation techniques to interoperate with various interface des... | Franca IDL | Technology,Engineering | 500 |
26,377,919 | https://en.wikipedia.org/wiki/Sequoioideae | Sequoioideae, commonly referred to as redwoods, is a subfamily of coniferous trees within the family Cupressaceae, that range in the northern hemisphere. It includes the largest and tallest trees in the world. The trees in the subfamily are amongst the most notable trees in the world and are common ornamental trees.
D... | Sequoioideae | Biology | 1,419 |
18,079,073 | https://en.wikipedia.org/wiki/Mark%20W.%20Spong | Mark W. Spong (born November 5, 1952, in Warren, Ohio) is an American roboticist. He is a professor of systems engineering and electrical and computer engineering in the Erik Jonsson School of Engineering & Computer Science at the University of Texas at Dallas (UTD). He served as dean of the Jonsson School and the Lar... | Mark W. Spong | Engineering | 488 |
1,581,427 | https://en.wikipedia.org/wiki/Bereitschaftspotential | In neurology, the Bereitschaftspotential or BP (German for "readiness potential"), also called the pre-motor potential or readiness potential (RP), is a measure of activity in the motor cortex and supplementary motor area of the brain leading up to voluntary muscle movement. The BP is a manifestation of cortical contr... | Bereitschaftspotential | Biology | 2,710 |
10,848,810 | https://en.wikipedia.org/wiki/Provider%20edge%20router | A provider edge router (PE router) is a router between one network service provider's area and areas administered by other network providers. A network provider is usually an Internet service provider as well (or only that).
The term PE router covers equipment capable of a broad range of routing protocols, notably:
Bo... | Provider edge router | Technology | 190 |
1,246,227 | https://en.wikipedia.org/wiki/Security%20theater | Security theater is the practice of implementing security measures that are considered to provide the feeling of improved security while doing little or nothing to achieve it.
The term was originally coined by Bruce Schneier for his book Beyond Fear and has since been widely adopted by the media and the public, partic... | Security theater | Engineering | 2,297 |
60,144 | https://en.wikipedia.org/wiki/Wireless%20community%20network | Wireless community networks or wireless community projects or simply community networks, are non-centralized, self-managed and collaborative networks organized in a grassroots fashion by communities, non-governmental organizations and cooperatives in order to provide a viable alternative to municipal wireless networks ... | Wireless community network | Technology | 3,342 |
41,213,990 | https://en.wikipedia.org/wiki/Neutrino%20minimal%20standard%20model | The neutrino minimal standard model (often abbreviated as νMSM) is an extension of the Standard Model of particle physics, by the addition of three right-handed neutrinos with masses smaller than the electroweak scale. Introduced by Takehiko Asaka and Mikhail Shaposhnikov in 2005, it has provided a highly constrained m... | Neutrino minimal standard model | Physics | 111 |
55,917,496 | https://en.wikipedia.org/wiki/Spt-Ada-Gcn5%20acetyltransferase | Spt-Ada-Gcn5 acetyltransferase (SAGA) complex is a multicomponent regulator of acetylation. It has been found that this complex is highly conserved between different organisms, such as humans, Drosophila, and yeast. This 15 subunit complex has been best characterized for its histone acetyltransferase activity (HAT). Th... | Spt-Ada-Gcn5 acetyltransferase | Chemistry | 342 |
24,324,535 | https://en.wikipedia.org/wiki/Armillaria%20affinis | Armillaria affinis is a species of agaric fungus in the family Physalacriaceae. This species is found in Central America.
See also
List of Armillaria species
References
affinis
Fungi described in 1989
Fungi of Central America
Fungal tree pathogens and diseases
Fungus species | Armillaria affinis | Biology | 61 |
59,202 | https://en.wikipedia.org/wiki/Object%E2%80%93relational%20mapping | Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between a relational database and the memory (usually the heap) of an object-oriented programming language. This creates, in effect, a virtual object database that can be used from within the p... | Object–relational mapping | Engineering | 1,399 |
4,271,664 | https://en.wikipedia.org/wiki/List%20of%20atmospheric%20dispersion%20models | Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere.
US Environmental Protection Agency models
Many of the dispersion models developed by or accepted for use by the U.S. E... | List of atmospheric dispersion models | Chemistry,Engineering,Environmental_science | 8,417 |
3,018,168 | https://en.wikipedia.org/wiki/Kleptolagnia | Kleptolagnia (from Greek kleptein meaning "to steal", and lagnia meaning "sexual excitement") is the state of being sexually aroused by theft. A kleptolagniac is a person aroused by the act of theft. It is also known as kleptophilia, and is a sexual form of kleptomania.
See also
Chremastistophilia
References
Sexual... | Kleptolagnia | Biology | 96 |
11,774,223 | https://en.wikipedia.org/wiki/Function%20%28engineering%29 | In engineering, a function is interpreted as a specific process, action or task that a system is able to perform.
In engineering design
In the lifecycle of engineering projects, there are usually distinguished subsequently: Requirements and Functional specification documents. The Requirements usually specifies the mo... | Function (engineering) | Engineering | 217 |
11,997,299 | https://en.wikipedia.org/wiki/Nonode | A nonode is a type of thermionic valve that has nine active electrodes. The term most commonly applies to a seven-grid vacuum tube, also sometimes called an enneode. An example was the EQ80/UQ80, which was used as an FM quadrature detector. It was developed during the introduction of TV and FM radio and delivered an ou... | Nonode | Physics | 144 |
29,426,653 | https://en.wikipedia.org/wiki/Wolstenholme%20prime | In number theory, a Wolstenholme prime is a special type of prime number satisfying a stronger version of Wolstenholme's theorem. Wolstenholme's theorem is a congruence relation satisfied by all prime numbers greater than 3. Wolstenholme primes are named after mathematician Joseph Wolstenholme, who first described this... | Wolstenholme prime | Mathematics | 856 |
77,142,648 | https://en.wikipedia.org/wiki/PH-797804 | PH-797804 is a drug which acts as a selective inhibitor of the enzyme p38 mitogen-activated protein kinase (p38 MAPK). It has antiinflammatory effects and has been researched for the treatment of inflammatory lung conditions such as chronic obstructive pulmonary disease and COVID-19. While it has not been adopted for c... | PH-797804 | Chemistry | 119 |
27,228,915 | https://en.wikipedia.org/wiki/Nodal%20precession | Nodal precession is the precession of the orbital plane of a satellite around the rotational axis of an astronomical body such as Earth. This precession is due to the non-spherical nature of a rotating body, which creates a non-uniform gravitational field. The following discussion relates to low Earth orbit of artifici... | Nodal precession | Physics,Engineering | 928 |
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