Split (1)

train · 182k rows

id int64 39 79M	url stringlengths 31 227	text stringlengths 6 334k	source stringlengths 1 150 ⌀	categories listlengths 1 6	token_count int64 3 71.8k	subcategories listlengths 0 30
7,044,429	https://en.wikipedia.org/wiki/Absolute%20irreducibility	In mathematics, a multivariate polynomial defined over the rational numbers is absolutely irreducible if it is irreducible over the complex field. For example, is absolutely irreducible, but while is irreducible over the integers and the reals, it is reducible over the complex numbers as and thus not absolutely irr...	Absolute irreducibility	[ "Mathematics" ]	559	[ "Representation theory", "Fields of abstract algebra", "Algebraic geometry" ]
7,044,567	https://en.wikipedia.org/wiki/Kari%20Enqvist	Kari-Pekka Enqvist (born February 16, 1954, in Lahti, Finland) is a professor of cosmology in the Department of Physical Sciences at the University of Helsinki. Enqvist was awarded his PhD in theoretical physics in 1983. Enqvist is the chairman of the scientific advisory board of Skepsis ry (a Finnish sceptics' societ...	Kari Enqvist	[ "Physics" ]	228	[ "Particle physicists", "Particle physics" ]
7,044,573	https://en.wikipedia.org/wiki/Station%20biologique%20de%20Roscoff	The Station biologique de Roscoff (SBR) is a French marine biology and oceanography research and teaching center. Founded by Henri de Lacaze-Duthiers (1821–1901) in 1872, it is at the present time affiliated to the Sorbonne Faculty of Science and Engineering (part of Sorbonne University) and the Centre National de la R...	Station biologique de Roscoff	[ "Physics", "Environmental_science" ]	649	[ "Oceanography", "Hydrology", "Applied and interdisciplinary physics" ]
7,045,361	https://en.wikipedia.org/wiki/Biomedical%20Engineering%20Society	BMES (the Biomedical Engineering Society) is the professional society for students, faculty, researchers and industry working in the broad area of biomedical engineering. BMES is the leading biomedical engineering society in the United States and was founded on February 1, 1968 "to promote the increase of biomedical en...	Biomedical Engineering Society	[ "Engineering", "Biology" ]	190	[ "Biological engineering", "Bioengineering stubs", "Biomedical engineering", "Biotechnology stubs", "Medical technology stubs", "Medical technology" ]
7,045,490	https://en.wikipedia.org/wiki/Dual%20abelian%20variety	In mathematics, a dual abelian variety can be defined from an abelian variety A, defined over a field k. A 1-dimensional abelian variety is an elliptic curve, and every elliptic curve is isomorphic to its dual, but this fails for higher-dimensional abelian varieties, so the concept of dual becomes more interesting in ...	Dual abelian variety	[ "Mathematics" ]	1,432	[ "Mathematical structures", "Category theory", "Duality theories", "Geometry" ]
7,045,887	https://en.wikipedia.org/wiki/Black%20cat%20bone	A black cat bone is a type of lucky charm used in the magical tradition of hoodoo. It is thought to ensure a variety of positive effects, such as invisibility, good luck, protection from malevolent magic, rebirth after death, and romantic success. The bone, anointed with Van Van oil, may be carried as a component of a...	Black cat bone	[ "Physics" ]	553	[ "Magic items", "Physical objects", "Matter" ]
7,046,215	https://en.wikipedia.org/wiki/Loewe%203NF	The Loewe 3NF was an early attempt to combine several functions in one electronic device. Produced by the German Loewe-Audion GmbH as early as 1926, the device consisted of three triode valves (tubes) in a single glass envelope together with two fixed capacitors and four fixed resistors required to make a complete rad...	Loewe 3NF	[ "Physics" ]	344	[ "Vacuum tubes", "Vacuum", "Matter" ]
7,046,642	https://en.wikipedia.org/wiki/Analyst%20%28journal%29	Analyst is a biweekly peer-reviewed scientific journal covering all aspects of analytical chemistry, bioanalysis, and detection science. It is published by the Royal Society of Chemistry and the editor-in-chief is Norman Dovichi (University of Notre Dame). The journal was established in 1877 by the Society for Analytic...	Analyst (journal)	[ "Chemistry" ]	224	[ "nan" ]
10,871,573	https://en.wikipedia.org/wiki/Open%20Architecture%20Computing%20Environment	Open Architecture Computing Environment (OACE) was a specification that aimed to provide a standards-based computing environment in order to decouple computing environment from software applications. It was proposed for the United States Department of Defense in 2004. See also Open architecture Mission Data Interfa...	Open Architecture Computing Environment	[ "Technology" ]	62	[ "Computing stubs", "Computer science", "Computer science stubs" ]
10,872,064	https://en.wikipedia.org/wiki/Hardmask	A hardmask is a material used in semiconductor processing as an etch mask instead of a polymer or other organic "soft" resist material. Hardmasks are necessary when the material being etched is itself an organic polymer. Anything used to etch this material will also etch the photoresist being used to define its patte...	Hardmask	[ "Materials_science", "Engineering" ]	553	[ "Semiconductor device fabrication", "Materials science stubs", "Materials science", "Microtechnology" ]
10,872,408	https://en.wikipedia.org/wiki/Lipiduria	Lipiduria or lipuria is the presence of lipids in the urine. Lipiduria is most frequently observed in nephrotic syndrome where it is passed as lipoproteins along with other proteins. It has also been reported as a sign following fat embolism. When lipiduria occurs, epithelial cells or macrophages contain endogenous fa...	Lipiduria	[ "Biology" ]	146	[ "Urine", "Excretion", "Animal waste products" ]
10,872,707	https://en.wikipedia.org/wiki/Parry%20arc	A Parry arc is a rare halo, an optical phenomenon which occasionally appears over a 22° halo together with an upper tangent arc. Discovery The halo was first described by Sir William Edward Parry (1790–1855) in 1820 during one of his Arctic expeditions in search for the Northwest Passage. On April 8, under harsh con...	Parry arc	[ "Physics" ]	459	[ "Optical phenomena", "Physical phenomena", "Atmospheric optical phenomena", "Earth phenomena" ]
10,873,260	https://en.wikipedia.org/wiki/Magnet%20keeper	A magnet keeper, also known historically as an armature, is a bar made from magnetically soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have low magnetic coercivity, such as alnic...	Magnet keeper	[ "Materials_science" ]	344	[ "Materials science stubs", "Electromagnetism stubs" ]
10,873,846	https://en.wikipedia.org/wiki/V%C3%A1clav%20Chv%C3%A1tal	Václav (Vašek) Chvátal () is a Professor Emeritus in the Department of Computer Science and Software Engineering at Concordia University in Montreal, Quebec, Canada, and a visiting professor at Charles University in Prague. He has published extensively on topics in graph theory, combinatorics, and combinatorial optimiz...	Václav Chvátal	[ "Mathematics" ]	1,203	[ "Combinatorialists", "Combinatorics" ]
10,874,021	https://en.wikipedia.org/wiki/Moldova%20Steel%20Works	Moldova Steel Works (; ) is a steel-producing company in Rîbnița, in the unrecognized state of Transnistria. It accounts for more than half of Transnistrian total industrial output. Moldova Steel Works was founded in 1985 for reprocessing of scrap metal. In 1998, majority of its shares was sold to Russian energy compa...	Moldova Steel Works	[ "Chemistry" ]	383	[ "Iron and steel mills", "Metallurgical facilities" ]
10,874,176	https://en.wikipedia.org/wiki/Mullion%20wall	A mullion wall is a structural system in which the load of the floor slab is taken by prefabricated panels around the perimeter. Visually, the effect is similar to the stone-mullioned windows of Perpendicular Gothic or Elizabethan architecture. The technology was devised by George Grenfell Baines and the engineer Feli...	Mullion wall	[ "Technology", "Engineering" ]	183	[ "Structural system", "Types of wall", "Structural engineering", "Building engineering" ]
10,874,478	https://en.wikipedia.org/wiki/Rope%20caulk	Rope caulk or caulking cord is a type of pliable putty or caulking formed into a rope-like shape. It is typically off-white in color, relatively odorless, and stays pliable for an extended period of time. Rope caulk can be used as caulking or weatherstripping around conventional windows installed in conventional woode...	Rope caulk	[ "Physics", "Engineering" ]	311	[ "Building engineering", "Unsolved problems in physics", "Architecture", "Civil engineering", "Amorphous solids", "Plastics" ]
10,874,913	https://en.wikipedia.org/wiki/RAD%20Data%20Communications	RAD Data Communications Ltd. is a privately held corporation, headquartered in Tel Aviv, Israel that designs and manufacturers specialized networking equipment. RAD is a member of the $1.3 billion RAD Group of companies. History RAD was founded by brothers Yehuda and Zohar Zisapel in 1981 as a spin-off from Bynet, a...	RAD Data Communications	[ "Technology" ]	750	[ "Computer hardware companies", "Computers" ]
10,874,936	https://en.wikipedia.org/wiki/Sudan%20Airways%20Flight%20139	Sudan Airways Flight 139 was a Sudan Airways passenger flight that crashed on 8 July 2003 at Port Sudan. The Boeing 737 aircraft was operating a domestic scheduled Port Sudan–Khartoum passenger service. Some 15 minutes after takeoff, the aircraft lost power in one of its engines, which prompted the crew to return to th...	Sudan Airways Flight 139	[ "Materials_science" ]	488	[ "Airliner accidents and incidents caused by mechanical failure", "Mechanical failure" ]
10,875,031	https://en.wikipedia.org/wiki/Periodic%20continued%20fraction	In mathematics, an infinite periodic continued fraction is a simple continued fraction that can be placed in the form where the initial block of k+1 partial denominators is followed by a block of m partial denominators that repeats ad infinitum. For example, can be expanded to the periodic continued fraction . Thi...	Periodic continued fraction	[ "Mathematics" ]	1,509	[ "Mathematical analysis", "Continued fractions", "Number theory" ]
10,875,316	https://en.wikipedia.org/wiki/Knowledge%20policy	Knowledge policies provide institutional foundations for creating, managing, and using organizational knowledge as well as social foundations for balancing global competitiveness with social order and cultural values. Knowledge policies can be viewed from a number of perspectives: the necessary linkage to technologica...	Knowledge policy	[ "Technology" ]	1,292	[ "Computing and society", "Information society" ]
10,875,676	https://en.wikipedia.org/wiki/Particle%20physics%20in%20cosmology	Particle physics is the study of the interactions of elementary particles at high energies, whilst physical cosmology studies the universe as a single physical entity. The interface between these two fields is sometimes referred to as particle cosmology. Particle physics must be taken into account in cosmological model...	Particle physics in cosmology	[ "Physics", "Astronomy" ]	467	[ "Astronomical sub-disciplines", "Theoretical physics", "Astrophysics", "Particle physics", "Particle physics stubs", "Physical cosmology" ]
10,875,756	https://en.wikipedia.org/wiki/Lie%27s%20third%20theorem	In the mathematics of Lie theory, Lie's third theorem states that every finite-dimensional Lie algebra over the real numbers is associated to a Lie group . The theorem is part of the Lie group–Lie algebra correspondence. Historically, the third theorem referred to a different but related result. The two preceding the...	Lie's third theorem	[ "Mathematics" ]	618	[ "Lie groups", "Mathematical structures", "Algebraic structures" ]
10,876,058	https://en.wikipedia.org/wiki/Crane%20tank%20locomotive	A crane tank locomotive (CT) is a steam locomotive fitted with a crane for working in railway workshops, docksides, or other industrial environments. The crane may be fitted at the front, centre or rear. The 'tank' in its name refers to water tanks mounted either side of the boiler, as cranes were usually constructe...	Crane tank locomotive	[ "Engineering" ]	269	[ "Engineering vehicles", "Cranes (machines)" ]
10,877,048	https://en.wikipedia.org/wiki/Marinobacter	Marinobacter is a genus of bacteria found in sea water. They are also found in a variety of salt lakes. A number of strains and species can degrade hydrocarbons. The species involved in hydrocarbon degradation include M. alkaliphilus, M. arcticus, M. hydrocarbonoclasticus, M. maritimus, and M. squalenivorans. There ar...	Marinobacter	[ "Biology" ]	118	[ "Hydrocarbon-degrading bacteria", "Bacteria" ]
10,877,079	https://en.wikipedia.org/wiki/Criegee%20intermediate	A Criegee intermediate (also called a Criegee zwitterion or Criegee biradical) is a carbonyl oxide with two charge centers. These chemicals may react with sulfur dioxide and nitrogen oxides in the Earth's atmosphere, and are implicated in the formation of aerosols, which are an important factor in controlling global cl...	Criegee intermediate	[ "Physics", "Chemistry", "Materials_science", "Biology", "Environmental_science" ]	488	[ "Free radicals", "Environmental chemistry", "Senescence", "Condensed matter physics", "Biomolecules", "nan", "Chemical bonding" ]
10,877,102	https://en.wikipedia.org/wiki/Marinobacter%20hydrocarbonoclasticus	Marinobacter hydrocarbonoclasticus is a species of bacteria found in sea water which are able to degrade hydrocarbons. The cells are rod-shaped and motile by means of a single polar flagellum. Etymology ‘Hydrocarbonoclastic’ means ‘hydrocarbon dismantling.’ These bacteria were named as such because they can degrade th...	Marinobacter hydrocarbonoclasticus	[ "Biology" ]	1,332	[ "Hydrocarbon-degrading bacteria", "Bacteria" ]
10,877,467	https://en.wikipedia.org/wiki/Gliese%20581c	Gliese 581c (Gl 581c or GJ 581c) is an exoplanet orbiting within the Gliese 581 system. It is the second planet discovered in the system and the third in order from the star. With a mass about 6.8 times that of the Earth, it is classified as a super-Earth (a category of planets with masses greater than Earth's up to t...	Gliese 581c	[ "Astronomy" ]	2,865	[ "Libra (constellation)", "Constellations" ]
10,877,475	https://en.wikipedia.org/wiki/Enterobacter%20cloacae	Enterobacter cloacae is a clinically significant Gram-negative, facultatively-anaerobic, rod-shaped bacterium. Microbiology In microbiology laboratories, E. cloacae is frequently grown at 30 °C on nutrient agar or at 35 °C in tryptic soy broth. It is a rod-shaped, Gram-negative bacterium, is facultatively anaerobic, a...	Enterobacter cloacae	[ "Chemistry" ]	650	[ "Biodegradation" ]
10,877,810	https://en.wikipedia.org/wiki/Neopentyllithium	Neopentyllithium is an organolithium compound with the chemical formula C5H11Li. Commercially available, it is a strong, non-nucleophilic base sometimes encountered in organometallic chemistry. Further reading Organolithium compounds Non-nucleophilic bases Neopentyl compounds	Neopentyllithium	[ "Chemistry" ]	70	[ "Non-nucleophilic bases", "Organolithium compounds", "Bases (chemistry)", "Reagents for organic chemistry" ]
10,879,587	https://en.wikipedia.org/wiki/Cosmodome	The Cosmodome () is a space science museum and education centre located in Laval, Quebec, Canada. Cosmodome is the home to both Space Camp Canada and the Space Science Centre (a museum). Space Camp Canada welcomed its first campers in July 1994 while the Space Science Centre opened its doors to the public in December 1...	Cosmodome	[ "Astronomy" ]	591	[ "Astronomy organizations", "Space organizations" ]
10,879,760	https://en.wikipedia.org/wiki/1%2C3-Dichloropropene	1,3-Dichloropropene, sold under diverse trade names, is an organochlorine compound with the formula . It is a colorless liquid with a sweet smell. It is feebly soluble in water and evaporates easily. It is used mainly in farming as a pesticide, specifically as a preplant fumigant and nematicide. It acts non-specificall...	1,3-Dichloropropene	[ "Biology", "Environmental_science" ]	647	[ "Biocides", "Toxicology", "Pesticides" ]
10,881,572	https://en.wikipedia.org/wiki/Domain%20drop%20catching	Domain drop catching, also known as domain sniping, is the practice of registering a domain name once registration has lapsed, immediately after expiry. Background When a domain is first registered, the customer is usually given the option of registering the domain for one year or longer, with automatic renewal as a p...	Domain drop catching	[ "Technology" ]	956	[ "Internet ethics", "Ethics of science and technology" ]
10,883,143	https://en.wikipedia.org/wiki/Register%20transfer%20notation	Register Transfer Notation (or RTN) is a way of specifying the behavior of a digital synchronous circuit. It is said to be a specification language for this reason. Register Transfer Languages (or RTL, where the L sometimes stands for Level of abstraction) are similar to Register Transfer Notation and used to describe ...	Register transfer notation	[ "Engineering" ]	172	[ "Electronic engineering", "Hardware description languages" ]
10,883,144	https://en.wikipedia.org/wiki/Cenchrus%20clandestinus	The tropical grass species Cenchrus clandestinus (previously Pennisetum clandestinum) is known by several common names, most often Kikuyu grass. It is native to the highland regions of East Africa that is home to the Kikuyu people. Because of its rapid growth and aggressive nature, it is categorised as a noxious weed i...	Cenchrus clandestinus	[ "Biology" ]	792	[ "Pests (organism)", "Agricultural pests" ]
10,883,352	https://en.wikipedia.org/wiki/Winged%20infusion%20set	A winged infusion set—also known as "butterfly" or "scalp vein" set—is a device specialized for venipuncture: i.e. for accessing a superficial vein or artery for either intravenous injection or phlebotomy. It consists, from front to rear, of a hypodermic needle, two bilateral flexible "wings", flexible small-bore trans...	Winged infusion set	[ "Biology" ]	556	[ "Medical equipment", "Medical technology" ]
10,883,414	https://en.wikipedia.org/wiki/Pound%20per%20hour	Pound per hour is a mass flow unit based on the international avoirdupois pound, which is used in both the British imperial and, being a former colony of Britain, the United States customary systems of measurement. It is abbreviated as PPH, or more conventionally as lb/h. Fuel flow for engines may be expressed using th...	Pound per hour	[ "Mathematics" ]	178	[ "Units of flow", "Quantity", "Units of measurement" ]
10,883,673	https://en.wikipedia.org/wiki/NGC%206242	NGC 6242 is an open cluster of stars in the southern constellation Scorpius. It can be viewed with binoculars or a telescope at about 1.5° to the south-southeast of the double star Mu Scorpii. This cluster was discovered by French astronomer Nicolas-Louis de Lacaille in 1752 from South Africa. It is located at a distan...	NGC 6242	[ "Astronomy" ]	175	[ "Scorpius", "Constellations" ]
10,883,715	https://en.wikipedia.org/wiki/4EGI-1	4EGI-1 is a synthetic chemical compound which has been found to interfere with the growth of certain types of cancer cells in vitro. Its mechanism of action involves interruption of the binding of cellular initiation factor proteins involved in the translation of transcribed mRNA at the ribosome. The inhibition of th...	4EGI-1	[ "Chemistry" ]	1,231	[ "Carboxylic acids", "Functional groups" ]
992,733	https://en.wikipedia.org/wiki/Earth%20%28historical%20chemistry%29	Earths were defined by the Ancient Greeks as "materials that could not be changed further by the sources of heat then available". Several oxides were thought to be earths, such as aluminum oxide and magnesium oxide. It was not discovered until 1808 that these weren't elements but metallic oxides. See also Rare earth...	Earth (historical chemistry)	[ "Chemistry" ]	76	[ "nan" ]
992,734	https://en.wikipedia.org/wiki/Winnecke%20Catalogue%20of%20Double%20Stars	Winnecke Catalogue of Double Stars is a list of seven "new" double stars published by German Astronomer August Winnecke in Astronomische Nachrichten in 1869. Winnecke later noted that three of the double stars he catalogued had been discovered earlier (30 Eridani, Bradley 757, and 44 Cygni). The stars are sometimes g...	Winnecke Catalogue of Double Stars	[ "Astronomy" ]	127	[ "Astronomical catalogue stubs", "Astronomy stubs" ]
992,829	https://en.wikipedia.org/wiki/Microcell	A microcell is a cell in a mobile phone network served by a low power cellular base station (tower), covering a limited area such as a mall, a hotel, or a transportation hub. A microcell is usually larger than a picocell, though the distinction is not always clear. A microcell uses power control to limit the radius of ...	Microcell	[ "Technology" ]	737	[ "Mobile telecommunications" ]
993,276	https://en.wikipedia.org/wiki/Rimantadine	Rimantadine (INN, sold under the trade name Flumadine) is an orally administered antiviral drug used to treat, and in rare cases prevent, influenzavirus A infection. When taken within one to two days of developing symptoms, rimantadine can shorten the duration and moderate the severity of influenza. Rimantadine can mi...	Rimantadine	[ "Chemistry" ]	1,327	[ "Amines", "Bases (chemistry)", "Functional groups" ]
993,328	https://en.wikipedia.org/wiki/Contingent%20cooperator	In game theory, a contingent cooperator is a person or agent who is willing to act in the collective interest, rather than his short-term selfish interest, if he observes a majority of the other agents in the collective doing the same. The apparent contradiction in this stance is resolved by game theory, which shows th...	Contingent cooperator	[ "Mathematics" ]	187	[ "Game theory" ]
993,342	https://en.wikipedia.org/wiki/Mount%20Kineo	Mount Kineo is a prominent geological feature located on a peninsula that extends from the easterly shore of Moosehead Lake in the northern forest of Maine. With cliffs rising straight up from the water, it is the central feature of Mount Kineo State Park, a protected area of managed by the Maine Department of Agric...	Mount Kineo	[ "Biology" ]	684	[ "Old-growth forests", "Ecosystems" ]
993,381	https://en.wikipedia.org/wiki/NGC%20185	NGC 185 (also known as Caldwell 18) is a dwarf spheroidal galaxy located 2.08 million light-years from Earth, appearing in the constellation Cassiopeia. It is a member of the Local Group, and is a satellite of the Andromeda Galaxy (M31). NGC 185 was discovered by William Herschel on November 30, 1787, and he cataloged ...	NGC 185	[ "Astronomy" ]	523	[ "Cassiopeia (constellation)", "Constellations" ]
993,397	https://en.wikipedia.org/wiki/Carl%20von%20Linde	Carl Paul Gottfried von Linde (11 June 1842 – 16 November 1934) was a German scientist, engineer, and businessman. He discovered the refrigeration cycle and invented the first industrial-scale air separation and gas liquefaction processes, which led to the first reliable and efficient compressed-ammonia refrigerator in...	Carl von Linde	[ "Chemistry" ]	1,698	[ "Chemical process engineering", "Industrial gases" ]
993,407	https://en.wikipedia.org/wiki/Hibakusha	( or ; or ; or ) is a word of Japanese origin generally designating the people affected by the atomic bombings of Hiroshima and Nagasaki by the United States at the end of World War II. Definition The word is Japanese, originally written in kanji. While the term ( + + ) has been used before in Japanese to ...	Hibakusha	[ "Chemistry", "Materials_science" ]	3,890	[ "Radiation effects", "Radiation health effects", "Radioactivity", "Nuclear warfare" ]
993,408	https://en.wikipedia.org/wiki/Blinkenlights	In computer jargon, blinkenlights are diagnostic lights on front panels of old mainframe computers. More recently the term applies to status lights of modern network hardware (modems, network hubs, etc.). Blinkenlights disappeared from more recent computers for a number of reasons, the most important being the fact tha...	Blinkenlights	[ "Technology" ]	786	[ "Computing terminology", "Computer jargon", "Natural language and computing" ]
993,509	https://en.wikipedia.org/wiki/Science%20wars	The science wars were a series of scholarly and public discussions in the 1990s over the social place of science in making authoritative claims about the world. Encyclopedia.com, citing the Encyclopedia of Science and Religion, describes the science wars as the "complex of discussions about the way the sciences are rel...	Science wars	[ "Technology" ]	3,589	[ "Science and technology studies" ]
993,533	https://en.wikipedia.org/wiki/Inclusionary%20zoning	Inclusionary zoning (IZ) is municipal and county planning ordinances that require or provide incentives when a given percentage of units in a new housing development be affordable by people with low to moderate incomes. Such housing is known as inclusionary housing. The term inclusionary zoning indicates that these ord...	Inclusionary zoning	[ "Engineering" ]	4,149	[ "Construction", "Zoning" ]
993,536	https://en.wikipedia.org/wiki/Strong%20programme	The strong programme or strong sociology is a variety of the sociology of scientific knowledge (SSK) particularly associated with David Bloor, Barry Barnes, Harry Collins, Donald A. MacKenzie, and John Henry. The strong programme's influence on science and technology studies is credited as being unparalleled (Latour 19...	Strong programme	[ "Technology" ]	1,162	[ "Science and technology studies" ]
994,028	https://en.wikipedia.org/wiki/Mobile%20%28sculpture%29	A mobile (, ) is a type of kinetic sculpture constructed to take advantage of the principle of equilibrium. It consists of a number of rods, from which weighted objects or further rods hang. The objects hanging from the rods balance each other, so that the rods remain more or less horizontal. Each rod hangs from only o...	Mobile (sculpture)	[ "Physics" ]	546	[ "Physical phenomena", "Motion (physics)", "Space", "Mechanics", "Spacetime" ]
994,039	https://en.wikipedia.org/wiki/Mobile%20office	A mobile office is an office built within a truck, motorhome, trailer or shipping container. The term is also used for people who don't work at a physical office location but instead carry their office materials with them. The mobile office can allow businesses to cut costs and avoid building physical locations where i...	Mobile office	[ "Engineering" ]	86	[ "Construction" ]
994,228	https://en.wikipedia.org/wiki/Environmental%20racism	Environmental racism, ecological racism, or ecological apartheid is a form of racism leading to negative environmental outcomes such as landfills, incinerators, and hazardous waste disposal disproportionately impacting communities of color, violating substantive equality. Internationally, it is also associated with ext...	Environmental racism	[ "Environmental_science" ]	10,577	[ "Environmental social science concepts", "Environmental social science" ]
994,407	https://en.wikipedia.org/wiki/Jesus%20wept	"Jesus wept" (, ) is a phrase famous for being the shortest verse in the King James Version of the Bible, as well as in many other translations. It is not the shortest in the original languages. The phrase is found in the Gospel of John, chapter 11, verse 35. Verse breaks—or versification—were introduced into the Greek...	Jesus wept	[ "Biology" ]	1,172	[ "Crying", "Behavior", "Human behavior" ]
994,446	https://en.wikipedia.org/wiki/NGC%202175	Open Cluster NGC 2175 (also known as OCL 476 or Cr 84) is an open cluster in the Orion constellation, embedded in a diffusion nebula. It was discovered by Giovanni Batista Hodierna before 1654 and independently discovered by Karl Christian Bruhns in 1857. NGC 2175 is at a distance of about 6,350 light years away from E...	NGC 2175	[ "Astronomy" ]	248	[ "Constellations", "Orion (constellation)" ]
994,459	https://en.wikipedia.org/wiki/NGC%202204	NGC 2204 is an open cluster of stars in the Canis Major constellation. It was discovered by the German-English astronomer William Herschel on 6 February 1785. The cluster has an integrated visual magnitude of 8.6 and spans a diameter of . Resolving the individual member stars is a challenge with a 10 to 12-inch amateur...	NGC 2204	[ "Astronomy" ]	247	[ "Canis Major", "Constellations" ]
994,465	https://en.wikipedia.org/wiki/NGC%202349	NGC 2349 is an open cluster of stars in the Monoceros constellation. It was discovered by Caroline Herschel in 1783. References External links NGC 2349 @ SEDS NGC objects pages Monoceros 2349 Open clusters	NGC 2349	[ "Astronomy" ]	47	[ "Monoceros", "Constellations" ]
994,471	https://en.wikipedia.org/wiki/NGC%202360	NGC 2360 (also known as Caroline's Cluster or Caldwell 58) is an open cluster in the constellation Canis Major. It was discovered on 26 February 1783 by Caroline Herschel, who described it as a "beautiful cluster of pretty compressed stars near 1/2 degree in diameter". Her notes were overlooked until her brother Willia...	NGC 2360	[ "Astronomy" ]	359	[ "Canis Major", "Constellations" ]
994,484	https://en.wikipedia.org/wiki/NGC%202362	NGC 2362, also known as Caldwell 64, is an open cluster of stars in the southern constellation of Canis Major. It was discovered by the Italian court astronomer Giovanni Batista Hodierna, who published his finding in 1654. William Herschel called it a "beautiful cluster", while William Henry Smyth said it "has a beauti...	NGC 2362	[ "Astronomy" ]	365	[ "Canis Major", "Constellations" ]
994,505	https://en.wikipedia.org/wiki/NGC%202419	NGC 2419 (also known as Caldwell 25) is a globular cluster in the constellation Lynx. It was discovered by William Herschel on December 31, 1788. NGC 2419 is at a distance of about 300,000 light years from the Solar System and at the same distance from the Galactic Center. NGC 2419 bears the nickname "the Intergalacti...	NGC 2419	[ "Astronomy" ]	487	[ "Lynx (constellation)", "Constellations" ]
994,519	https://en.wikipedia.org/wiki/NGC%202438	NGC 2438 is a planetary nebula in the southern constellation of Puppis. Parallax measurements by Gaia put the central star at a distance of roughly 1,370 light years. It was discovered by William Herschel on March 19, 1786. NGC 2438 appears to lie within the cluster M46, but it is most likely unrelated since it does no...	NGC 2438	[ "Astronomy" ]	272	[ "Puppis", "Constellations" ]
994,527	https://en.wikipedia.org/wiki/NGC%202451	NGC 2451 is an open cluster in the Puppis constellation, probably discovered by Giovanni Battista Hodierna before 1654 and John Herschel in 1835. In 1994, it was postulated that this was actually two open clusters that lie along the same line of sight. This was confirmed in 1996. The respective clusters are labeled NG...	NGC 2451	[ "Astronomy" ]	112	[ "Puppis", "Constellations" ]
994,531	https://en.wikipedia.org/wiki/NGC%202477	NGC 2477 (also known as Caldwell 71 or the Termite Hole Cluster) is an open cluster in the constellation Puppis. It contains about 300 stars, and was discovered by Abbé Lacaille in 1751. The cluster's age has been estimated at 700 million years. Visual appearance NGC 2477 is a stunning cluster, almost as extensive in...	NGC 2477	[ "Astronomy" ]	189	[ "Puppis", "Constellations" ]
994,556	https://en.wikipedia.org/wiki/Born%E2%80%93Haber%20cycle	The Born–Haber cycle is an approach to analyze reaction energies. It was named after two German scientists, Max Born and Fritz Haber, who developed it in 1919. It was also independently formulated by Kasimir Fajans and published concurrently in the same journal. The cycle is concerned with the formation of an ionic co...	Born–Haber cycle	[ "Physics", "Chemistry", "Materials_science" ]	954	[ "Thermochemistry", "Condensed matter physics", "nan", "Solid-state chemistry" ]
994,649	https://en.wikipedia.org/wiki/Don%27t%20Make%20Me%20Think	Don't Make Me Think is a book by Steve Krug about human–computer interaction and web usability. The book's premise is that a good software program or web site should let users accomplish their intended tasks as easily and directly as possible. Krug points out that people are good at satisficing, or taking the first ava...	Don't Make Me Think	[ "Technology", "Engineering" ]	291	[ "Human–computer interaction", "Computing stubs", "Computer book stubs", "Human–machine interaction" ]
994,704	https://en.wikipedia.org/wiki/Mental%20model	A mental model is an internal representation of external reality: that is, a way of representing reality within one's mind. Such models are hypothesized to play a major role in cognition, reasoning and decision-making. The term for this concept was coined in 1943 by Kenneth Craik, who suggested that the mind constructs...	Mental model	[ "Biology" ]	3,003	[ "Behavioural sciences", "Behavior", "Cognitive psychology" ]
994,800	https://en.wikipedia.org/wiki/Titanium%20tetrachloride	Titanium tetrachloride is the inorganic compound with the formula . It is an important intermediate in the production of titanium metal and the pigment titanium dioxide. is a volatile liquid. Upon contact with humid air, it forms thick clouds of titanium dioxide () and hydrochloric acid, a reaction that was formerly e...	Titanium tetrachloride	[ "Chemistry" ]	1,523	[ "Reagents for organic chemistry", "Chlorides", "Inorganic compounds", "Salts" ]
994,834	https://en.wikipedia.org/wiki/Korean%20numerals	The Korean language has two regularly used sets of numerals: a native Korean system and Sino-Korean system. The native Korean number system is used for general counting, like counting up to 99. It is also used to count people, hours, objects, ages, and more. Sino-Korean numbers on the other hand are used for purposes s...	Korean numerals	[ "Mathematics" ]	1,997	[ "Numeral systems", "Numerals" ]
994,887	https://en.wikipedia.org/wiki/Petroleum%20industry	The petroleum industry, also known as the oil industry, includes the global processes of exploration, extraction, refining, transportation (often by oil tankers and pipelines), and marketing of petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol). Petroleum is also the raw ...	Petroleum industry	[ "Chemistry" ]	3,735	[ "Chemical process engineering", "Petroleum", "Petroleum industry" ]
995,019	https://en.wikipedia.org/wiki/Mass%20gap	In quantum field theory, the mass gap is the difference in energy between the lowest energy state, the vacuum, and the next lowest energy state. The energy of the vacuum is zero by definition, and assuming that all energy states can be thought of as particles in plane-waves, the mass gap is the mass of the lightest par...	Mass gap	[ "Physics" ]	812	[ "Quantum field theory", "Quantum mechanics" ]
995,061	https://en.wikipedia.org/wiki/Micromonosporaceae	Micromonosporaceae is a family of bacteria of the class Actinomycetia. They are gram-positive, spore-forming soil organisms that form a true mycelium. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Informati...	Micromonosporaceae	[ "Biology" ]	121	[ "Soil biology" ]
995,062	https://en.wikipedia.org/wiki/Erik%20Demaine	Erik D. Demaine (born February 28, 1981) is a Canadian-American professor of computer science at the Massachusetts Institute of Technology and a former child prodigy. Early life and education Demaine was born in Halifax, Nova Scotia, to mathematician and sculptor Martin L. Demaine and Judy Anderson. From the age of 7...	Erik Demaine	[ "Mathematics" ]	780	[ "Recreational mathematics", "Recreational mathematicians" ]
995,064	https://en.wikipedia.org/wiki/Automated%20attendant	In telephony, an automated attendant (also auto attendant, auto-attendant, autoattendant, automatic phone menus, AA, or virtual receptionist) allows callers to be automatically transferred to an extension without the intervention of an operator/receptionist. Many AAs will also offer a simple menu system ("for sales, p...	Automated attendant	[ "Engineering" ]	993	[ "Control engineering", "Automation" ]
995,169	https://en.wikipedia.org/wiki/Landau%20theory	Landau theory (also known as Ginzburg–Landau theory, despite the confusing name) in physics is a theory that Lev Landau introduced in an attempt to formulate a general theory of continuous (i.e., second-order) phase transitions. It can also be adapted to systems under externally-applied fields, and used as a quantitati...	Landau theory	[ "Physics", "Chemistry" ]	2,956	[ "Physical phenomena", "Phase transitions", "Phases of matter", "Critical phenomena", "Statistical mechanics", "Matter" ]
995,197	https://en.wikipedia.org/wiki/Promethazine	Promethazine, sold under the brand name Phenergan among others, is a first-generation antihistamine, sedative, and antiemetic used to treat allergies, insomnia, and nausea. It may also help with some symptoms associated with the common cold and may also be used for sedating people who are agitated or anxious, an effect...	Promethazine	[ "Biology" ]	2,562	[ "Hypnotics", "Behavior", "Sleep" ]
995,332	https://en.wikipedia.org/wiki/Teicoplanin	Teicoplanin is an semisynthetic glycopeptide antibiotic with a spectrum of activity similar to vancomycin. Its mechanism of action is to inhibit bacterial cell wall peptidoglycan synthesis. It is used in the prophylaxis and treatment of serious infections caused by Gram-positive bacteria, including methicillin-resistan...	Teicoplanin	[ "Chemistry" ]	3,023	[ "Glycopeptide antibiotics", "Glycopeptides" ]
995,417	https://en.wikipedia.org/wiki/Geodetic%20datum	A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference frame) is a global datum reference or reference frame for unambiguously representing the position of locations on Earth by means of either geodetic coordinates (and relat...	Geodetic datum	[ "Mathematics" ]	3,866	[ "Geodetic datums", "Coordinate systems" ]
995,455	https://en.wikipedia.org/wiki/Savi%20Technology	Savi Technology was founded in 1989 and is based in Alexandria, Virginia. The company was spun-off from Lockheed Martin in 2012. The company offers a variety of hardware including tags (also called sensors) that enable governments and organizations to access real-time information on the location, condition, and secur...	Savi Technology	[ "Engineering" ]	118	[ "Radio-frequency identification", "Radio electronics" ]
995,636	https://en.wikipedia.org/wiki/Course%20%28navigation%29	In navigation, the course of a watercraft or aircraft is the cardinal direction in which the craft is to be steered. The course is to be distinguished from the heading, which is the direction where the watercraft's bow or the aircraft's nose is pointed. The path that a vessel follows is called a track or, in the case o...	Course (navigation)	[ "Technology", "Engineering" ]	327	[ "Tracking", "Wireless locating", "Aircraft instruments", "Measuring instruments" ]
995,719	https://en.wikipedia.org/wiki/Burton%20process	The Burton process is a thermal cracking process invented by William Merriam Burton and Robert E. Humphreys, both of whom held a PhD in chemistry from Johns Hopkins University. The process they developed is commonly referred to as the Burton process. However, it should be recognized as the Burton-Humphreys process, as ...	Burton process	[ "Chemistry", "Engineering" ]	368	[ "Petroleum engineering", "Petroleum technology", "Chemical processes", "nan", "Chemical process engineering" ]
995,743	https://en.wikipedia.org/wiki/FourCC	A FourCC ("four-character code") is a sequence of four bytes (typically ASCII) used to uniquely identify data formats. It originated from the OSType or ResType metadata system used in classic Mac OS and was adopted for the Amiga/Electronic Arts Interchange File Format and derivatives. The idea was later reused to ident...	FourCC	[ "Technology" ]	1,424	[ "Metadata", "Data" ]
995,862	https://en.wikipedia.org/wiki/Tyranny%20of%20numbers	The tyranny of numbers was a problem faced in the 1960s by computer engineers. Engineers were unable to increase the performance of their designs due to the huge number of components involved. In theory, every component needed to be wired to every other component (or at least many other components) and were typically ...	Tyranny of numbers	[ "Technology", "Engineering" ]	795	[ "Electrical engineering", "Computer engineering" ]
995,903	https://en.wikipedia.org/wiki/Mesna	Mesna, sold under the brand name Mesnex among others, is a medication used in those taking cyclophosphamide or ifosfamide to decrease the risk of bleeding from the bladder. It is used either by mouth or injection into a vein. Common side effects include headache, vomiting, sleepiness, loss of appetite, cough, rash, an...	Mesna	[ "Chemistry" ]	733	[ "Organic compounds", "Organic sodium salts", "Thiols", "Salts" ]
995,908	https://en.wikipedia.org/wiki/Tomographic%20reconstruction	Tomographic reconstruction is a type of multidimensional inverse problem where the challenge is to yield an estimate of a specific system from a finite number of projections. The mathematical basis for tomographic imaging was laid down by Johann Radon. A notable example of applications is the reconstruction of computed...	Tomographic reconstruction	[ "Mathematics", "Technology", "Engineering" ]	1,859	[ "Telecommunications engineering", "Computer engineering", "Signal processing", "Applied mathematics", "Inverse problems" ]
995,969	https://en.wikipedia.org/wiki/Consolidated%20Mine	The Consolidated Mine was a gold mine in Lumpkin County, Georgia, United States, just east of Dahlonega. Like most of the area around Dahlonega, the placer mining on the land on which the mine is located probably started during the Georgia Gold Rush. By 1880, the placer deposits were exhausted and the land was down to ...	Consolidated Mine	[ "Chemistry", "Engineering" ]	493	[ "Stamp mills", "Metallurgical facilities", "Mining equipment" ]
995,994	https://en.wikipedia.org/wiki/Electro-galvanic%20oxygen%20sensor	An electro-galvanic fuel cell is an electrochemical device which consumes a fuel to produce an electrical output by a chemical reaction. One form of electro-galvanic fuel cell based on the oxidation of lead is commonly used to measure the concentration of oxygen gas in underwater diving and medical breathing gases. El...	Electro-galvanic oxygen sensor	[ "Technology", "Engineering" ]	3,679	[ "Sensors", "Measuring instruments" ]
996,096	https://en.wikipedia.org/wiki/Sentence%20extraction	Sentence extraction is a technique used for automatic summarization of a text. In this shallow approach, statistical heuristics are used to identify the most salient sentences of a text. Sentence extraction is a low-cost approach compared to more knowledge-intensive deeper approaches which require additional knowledge ...	Sentence extraction	[ "Technology" ]	526	[ "Natural language processing", "Natural language and computing", "Computational linguistics" ]
996,107	https://en.wikipedia.org/wiki/Universal%20coefficient%20theorem	In algebraic topology, universal coefficient theorems establish relationships between homology groups (or cohomology groups) with different coefficients. For instance, for every topological space , its integral homology groups: completely determine its homology groups with coefficients in , for any abelian group : ...	Universal coefficient theorem	[ "Mathematics" ]	787	[ "Mathematical structures", "Theorems in topology", "Fields of abstract algebra", "Category theory", "Theorems in algebraic topology", "Homological algebra" ]
996,154	https://en.wikipedia.org/wiki/Timberjack	Timberjack is a manufacturer of forestry machinery for both cut-to-length and whole tree logging, and was a subsidiary of John Deere from 2000 to 2006. History Timberjack was founded in Woodstock, Ontario, in the 1950s by Wes Magill and Robert Simmons, who designed an articulated four-wheel drive tractor with a winch ...	Timberjack	[ "Engineering" ]	406	[ "Engineering vehicles", "John Deere vehicles" ]
996,230	https://en.wikipedia.org/wiki/Meander%20%28art%29	A meander or meandros () is a decorative border constructed from a continuous line, shaped into a repeated motif. Among some Italians, these patterns are known as "Greek Lines". Such a design may also be called the Greek fret or Greek key design, although these terms are modern designations; this decorative motif app...	Meander (art)	[ "Mathematics" ]	481	[ "Symbols", "Visual motifs" ]
996,278	https://en.wikipedia.org/wiki/Molecular%20geometry	Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It includes the general shape of the molecule as well as bond lengths, bond angles, torsional angles and any other geometrical parameters that determine the position of each atom. Molecular geometry influences several prop...	Molecular geometry	[ "Physics", "Chemistry" ]	2,577	[ "Molecular geometry", "Molecules", "Stereochemistry", "Matter" ]
996,298	https://en.wikipedia.org/wiki/Exhaust%20manifold	In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word manifold comes from the Old English word manigfeald (from the Anglo-Saxon manig [many] and feald [fold]) and refers to the folding together of multiple inputs and outputs (in contrast, an inlet or i...	Exhaust manifold	[ "Technology" ]	1,790	[ "Engine technology", "Engines" ]
996,315	https://en.wikipedia.org/wiki/Downhill%20creep	Downhill creep, also known as soil creep or commonly just creep, is a type of creep characterized by the slow, downward progression of rock and soil down a low grade slope; it can also refer to slow deformation of such materials as a result of prolonged pressure and stress. Creep may appear to an observer to be continu...	Downhill creep	[ "Environmental_science" ]	823	[ "Environmental soil science" ]
996,317	https://en.wikipedia.org/wiki/Fetal%20position	Fetal position (British English: also foetal) is the positioning of the body of a prenatal fetus as it develops. In this position, the back is curved, the head is bowed, and the limbs are bent and drawn up to the torso. A compact position is typical for fetuses. Many newborn mammals, especially rodents, remain in a fet...	Fetal position	[ "Biology" ]	273	[ "Behavior", "Human positions", "Human behavior", "Anatomy" ]
996,341	https://en.wikipedia.org/wiki/Spindle%20checkpoint	The spindle checkpoint, also known as the metaphase-to-anaphase transition, the spindle assembly checkpoint (SAC), the metaphase checkpoint, or the mitotic checkpoint, is a cell cycle checkpoint during metaphase of mitosis or meiosis that prevents the separation of the duplicated chromosomes (anaphase) until each chrom...	Spindle checkpoint	[ "Biology" ]	8,516	[ "Cell cycle", "Cellular processes" ]
996,410	https://en.wikipedia.org/wiki/Forwarder	A forwarder is a forestry vehicle that carries big felled logs cut by a harvester from the stump to a roadside landing for later acquisition. Forwarders can use rubber tires or tracks. Unlike a skidder, a forwarder carries logs clear of the ground, which can reduce soil impacts but tends to limit the size of the logs i...	Forwarder	[ "Engineering" ]	347	[ "Engineering vehicles" ]
996,437	https://en.wikipedia.org/wiki/Crisson%20Mine	Crisson Mine was a gold mine in Lumpkin County, Georgia, USA, located just east of Dahlonega. Like many mines in the area, the property probably started as a placer mine during the Georgia Gold Rush. Once the placer deposits had been exhausted, an open pit gold mine was established in 1847 and commercial operations ...	Crisson Mine	[ "Chemistry", "Engineering" ]	301	[ "Stamp mills", "Metallurgical facilities", "Mining equipment" ]
996,555	https://en.wikipedia.org/wiki/Mincemeat	Mincemeat is a mixture of chopped apples and dried fruit, distilled spirits or vinegar, spices, and optionally, meat and beef suet. Mincemeat is usually used as a pie or pastry filling. Traditional mincemeat recipes contain meat, notably beef or venison, as this was a way of preserving meat prior to modern preservation...	Mincemeat	[ "Technology" ]	1,250	[ "Food ingredients", "Components" ]

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.