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773292 | https://en.wikipedia.org/wiki/Measurement%20problem | Measurement problem | In quantum mechanics, the measurement problem is the problem of definite outcomes: quantum systems have superpositions but quantum measurements only give one definite result.
The wave function in quantum mechanics evolves deterministically according to the Schrödinger equation as a linear superposition of different s... | Physical sciences | Quantum mechanics | Physics |
774640 | https://en.wikipedia.org/wiki/Muntjac | Muntjac | Muntjacs ( ), also known as the barking deer or rib-faced deer, are small deer of the genus Muntiacus native to South Asia and Southeast Asia. Muntjacs are thought to have begun appearing 15–35 million years ago, with remains found in Miocene deposits in France, Germany and Poland. Most are listed as least-concern spec... | Biology and health sciences | Deer | Animals |
776591 | https://en.wikipedia.org/wiki/Cumulus%20humilis%20cloud | Cumulus humilis cloud | Cumulus humilis are cumuliform clouds with little vertical extent, common in the summer, that are often referred to as "fair weather cumulus". If they develop into cumulus mediocris or cumulus congestus, thunderstorms could form later in the day.
They generally form at lower altitudes (500–3000 m (1,500–10,000 ft)), b... | Physical sciences | Clouds | Earth science |
776713 | https://en.wikipedia.org/wiki/Unified%20field%20theory | Unified field theory | In physics, a unified field theory (UFT) is a type of field theory that allows all fundamental forces and elementary particles to be written in terms of a single type of field. According to modern discoveries in physics, forces are not transmitted directly between interacting objects but instead are described and inter... | Physical sciences | Particle physics: General | Physics |
777860 | https://en.wikipedia.org/wiki/Mauve | Mauve | Mauve (, ; , ) is a pale purple color named after the mallow flower (French: mauve). The first use of the word mauve as a color was in 1796–98 according to the Oxford English Dictionary, but its use seems to have been rare before 1859. Another name for the color is mallow, with the first recorded use of mallow as a col... | Physical sciences | Colors | Physics |
4741089 | https://en.wikipedia.org/wiki/Jeans%20instability | Jeans instability | The Jeans instability is a concept in astrophysics that describes an instability that leads to the gravitational collapse of a cloud of gas or dust. It causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent the gravitational... | Physical sciences | Stellar astronomy | Astronomy |
4741452 | https://en.wikipedia.org/wiki/Field%20galaxy | Field galaxy | A field galaxy is a galaxy that does not belong to a larger galaxy group or cluster and hence is gravitationally alone.
Roughly 80% of all galaxies located within of the Milky Way are in groups or clusters of galaxies. Most low-surface-brightness galaxies are field galaxies. The median Hubble-type of field galaxies i... | Physical sciences | Basics_2 | Astronomy |
4741614 | https://en.wikipedia.org/wiki/IC%201101 | IC 1101 | IC 1101 is a class S0 supergiant (cD) lenticular galaxy at the center of the Abell 2029 galaxy cluster. It has an isophotal diameter at about . It possesses a diffuse core which is the largest core of any galaxy known to date, and contains a supermassive black hole, one of the largest discovered.
IC 1101 is located at ... | Physical sciences | Notable galaxies | Astronomy |
4746723 | https://en.wikipedia.org/wiki/Tabasco%20pepper | Tabasco pepper | The tabasco pepper is a variety of the chili pepper species Capsicum frutescens originating in Mexico. It is best known through its use in Tabasco sauce, followed by peppered vinegar.
Like all C. frutescens cultivars, the tabasco plant has a typical bushy growth, which commercial cultivation makes stronger by trimming... | Biology and health sciences | Botanical fruits used as culinary vegetables | Plants |
8160460 | https://en.wikipedia.org/wiki/Moonrat | Moonrat | The moonrat (Echinosorex gymnura) is a southeast Asian species of mammal in the family Erinaceidae (the hedgehogs and gymnures). It is the only species in the genus Echinosorex. The moonrat is a fairly small, primarily carnivorous animal which, despite its name, is not closely related to rats or other rodents. The scie... | Biology and health sciences | Eulipotyphla | Animals |
8166296 | https://en.wikipedia.org/wiki/Synonym%20%28taxonomy%29 | Synonym (taxonomy) | The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently.
In botanical nomenclature, a synonym is a scientific name that applies to a taxon that now goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system o... | Biology and health sciences | Phylogenetics and taxonomy | Biology |
23624339 | https://en.wikipedia.org/wiki/Indexed%20family | Indexed family | In mathematics, a family, or indexed family, is informally a collection of objects, each associated with an index from some index set. For example, a family of real numbers, indexed by the set of integers, is a collection of real numbers, where a given function selects one real number for each integer (possibly the sam... | Mathematics | Set theory | null |
6197450 | https://en.wikipedia.org/wiki/Reaction%20intermediate | Reaction intermediate | In chemistry, a reaction intermediate, or intermediate, is a molecular entity arising within the sequence of a stepwise chemical reaction. It is formed as the reaction product of an elementary step, from the reactants and/or preceding intermediates, but is consumed in a later step. It does not appear in the chemical e... | Physical sciences | Basics_3 | Chemistry |
6198052 | https://en.wikipedia.org/wiki/Light%20tube | Light tube | Light tubes (also known as solar pipes, tubular skylights or sun tunnels) are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides.
In their application to daylighting, they are also often called tubular daylighting devices, sun pipes... | Technology | Lighting | null |
19593040 | https://en.wikipedia.org/wiki/Celsius | Celsius | The degree Celsius is the unit of temperature on the Celsius temperature scale (originally known as the centigrade scale outside Sweden), one of two temperature scales used in the International System of Units (SI), the other being the closely related Kelvin scale. The degree Celsius (symbol: °C) can refer to a specifi... | Physical sciences | Temperature | null |
19593121 | https://en.wikipedia.org/wiki/Kelvin | Kelvin | The kelvin (symbol: K) is the base unit for temperature in the International System of Units (SI). The Kelvin scale is an absolute temperature scale that starts at the lowest possible temperature (absolute zero), taken to be 0 K. By definition, the Celsius scale (symbol °C) and the Kelvin scale have the exact same magn... | Physical sciences | Temperature | null |
19593167 | https://en.wikipedia.org/wiki/Heat | Heat | In thermodynamics, heat is energy in transfer between a thermodynamic system and its surroundings by modes other than thermodynamic work and transfer of matter. Such modes are microscopic, mainly thermal conduction, radiation, and friction, as distinct from the macroscopic modes, thermodynamic work and transfer of matt... | Physical sciences | Physics | null |
19593829 | https://en.wikipedia.org/wiki/Spin%20%28physics%29 | Spin (physics) | Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles such as hadrons, atomic nuclei, and atoms. Spin is quantized, and accurate models for the interaction with spin require relativistic quantum mechanics or quantum field theory.
The existence of electron spin a... | Physical sciences | Particle physics: General | null |
19594028 | https://en.wikipedia.org/wiki/Theoretical%20physics | Theoretical physics | Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.
The advancement of science generally ... | Physical sciences | Basics_6 | null |
19594213 | https://en.wikipedia.org/wiki/Planck%20constant | Planck constant | The Planck constant, or Planck's constant, denoted by is a fundamental physical constant of foundational importance in quantum mechanics: a photon's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle mome... | Physical sciences | Physical constants | Physics |
19595060 | https://en.wikipedia.org/wiki/Tulip | Tulip | Tulips are spring-blooming perennial herbaceous bulbiferous geophytes in the Tulipa genus. Their flowers are usually large, showy, and brightly coloured, generally red, orange, pink, yellow, or white. They often have a different coloured blotch at the base of the tepals, internally. Because of a degree of variability w... | Biology and health sciences | Monocots | null |
19595436 | https://en.wikipedia.org/wiki/Elbow | Elbow | The elbow is the region between the upper arm and the forearm that surrounds the elbow joint. The elbow includes prominent landmarks such as the olecranon, the cubital fossa (also called the chelidon, or the elbow pit), and the lateral and the medial epicondyles of the humerus. The elbow joint is a hinge joint between ... | Biology and health sciences | Skeletal system | Biology |
19595664 | https://en.wikipedia.org/wiki/Time%20in%20physics | Time in physics | In physics, time is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics, it is a scalar quantity (often denoted by the symbol ) and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantiti... | Physical sciences | Physics basics: General | Physics |
19595676 | https://en.wikipedia.org/wiki/Superstring%20theory | Superstring theory | Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modeling them as vibrations of tiny supersymmetric strings.
'Superstring theory' is a shorthand for supersymmetric string theory because unlike bosonic string theory, it is the version of string theory th... | Physical sciences | Particle physics: General | Physics |
19600416 | https://en.wikipedia.org/wiki/Isotope | Isotope | Isotopes are distinct nuclear species (or nuclides) of the same chemical element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), but different nucleon numbers (mass numbers) due to different numbers of neutrons in ... | Physical sciences | Nuclear physics | null |
19604151 | https://en.wikipedia.org/wiki/Atomic%20mass | Atomic mass | Atomic mass (ma or m) is the mass of a single atom. The atomic mass mostly comes from the combined mass of the protons and neutrons in the nucleus, with minor contributions from the electrons and nuclear binding energy. The atomic mass of atoms, ions, or atomic nuclei is slightly less than the sum of the masses of thei... | Physical sciences | Basics_4 | null |
19604228 | https://en.wikipedia.org/wiki/Dark%20energy | Dark energy | In physical cosmology and astronomy, dark energy is a proposed form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the universe. Assuming that the lambda-CDM model of cosmology is correct, dark energy dominates the universe, contributing 68% of th... | Physical sciences | Physical cosmology | null |
255798 | https://en.wikipedia.org/wiki/Achromatopsia | Achromatopsia | Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy. Historically, the name referred to monochromacy in general, but now typically refers only to an autosomal recessive congenital color vision condition. The term is also used... | Biology and health sciences | Disabilities | Health |
255849 | https://en.wikipedia.org/wiki/LaserDisc | LaserDisc | The LaserDisc (LD) is a home video format and the first commercial optical disc storage medium, initially licensed, sold and marketed as MCA DiscoVision (also known simply as "DiscoVision") in the United States in 1978. Its diameter typically spans . Unlike most optical-disc standards, LaserDisc is not fully digital, a... | Technology | Non-volatile memory | null |
255954 | https://en.wikipedia.org/wiki/DNA%20microarray | DNA microarray | A DNA microarray (also commonly known as DNA chip or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes simultaneously or to genotype multiple regions of a genome. Each DNA spot contains picomoles (10−1... | Technology | Biotechnology | null |
255960 | https://en.wikipedia.org/wiki/Ground%20roller | Ground roller | The ground rollers , Brachypteraciidae, are a small family of non-migratory birds restricted to Madagascar.
They are members of the order Coraciiformes and are most closely related to the rollers in the family Coraciidae.
Description
Ground rollers share the generally crow-like size and build of the true rollers, ran... | Biology and health sciences | Coraciiformes | Animals |
255968 | https://en.wikipedia.org/wiki/High-explosive%20anti-tank | High-explosive anti-tank | High-explosive anti-tank (HEAT) is the effect of a shaped charge explosive that uses the Munroe effect to penetrate heavy armor. The warhead functions by having an explosive charge collapse a metal liner inside the warhead into a high-velocity shaped charge jet; this is capable of penetrating armor steel to a depth of ... | Technology | Explosive weapons | null |
256015 | https://en.wikipedia.org/wiki/Stairs | Stairs | Stairs are a structure designed to bridge a large vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by stepping from one to another step in turn. Steps are v... | Technology | Architectural elements | null |
256028 | https://en.wikipedia.org/wiki/New%20World%20quail | New World quail | The New World quail are small birds, that despite their similar appearance and habits to the Old World quail, belong to a different family known as the Odontophoridae. In contrast, the Old World quail are in the Phasianidae family. The geographical range of the New World quail extends from Canada to southern Brazil, an... | Biology and health sciences | Galliformes | Animals |
256162 | https://en.wikipedia.org/wiki/Neutrophil | Neutrophil | Neutrophils are a type of phagocytic white blood cell and part of innate immunity. More specifically, they form the most abundant type of granulocytes and make up 40% to 70% of all white blood cells in humans. Their functions vary in different animals. They are also known as neutrocytes, heterophils or polymorphonuclea... | Biology and health sciences | Circulatory system | Biology |
256332 | https://en.wikipedia.org/wiki/Achillea | Achillea | Achillea is a genus of flowering plants in the family Asteraceae. The plants typically have frilly leaves and are known colloquially as yarrows, although this common name usually refers to A. millefolium. The genus was named after the Greek mythological character Achilles, whose soldiers were said to have used yarrow ... | Biology and health sciences | Asterales | Plants |
256604 | https://en.wikipedia.org/wiki/Motmot | Motmot | The motmots or Momotidae are a family of birds in the order Coraciiformes, which also includes the kingfishers, bee-eaters and rollers. All extant motmots are restricted to woodland or forests in the Neotropics, and the largest are in Central America. They have a colourful plumage and a relatively heavy bill. All excep... | Biology and health sciences | Coraciiformes | Animals |
256611 | https://en.wikipedia.org/wiki/Cardinalidae | Cardinalidae | Cardinalidae (sometimes referred to as the "cardinal-grosbeaks" or simply the "cardinals") is a family of New World-endemic passerine birds that consists of cardinals, grosbeaks, and buntings. It also includes several other genera such as the tanager-like Piranga and the warbler-like Granatellus. Membership of this fa... | Biology and health sciences | Passerida | null |
256641 | https://en.wikipedia.org/wiki/Plant%20hormone | Plant hormone | Plant hormones (or phytohormones) are signal molecules, produced within plants, that occur in extremely low concentrations. Plant hormones control all aspects of plant growth and development, including embryogenesis, the regulation of organ size, pathogen defense, stress tolerance and reproductive development. Unlike i... | Biology and health sciences | Biochemistry and molecular biology | null |
256700 | https://en.wikipedia.org/wiki/Mathematical%20problem | Mathematical problem | A mathematical problem is a problem that can be represented, analyzed, and possibly solved, with the methods of mathematics. This can be a real-world problem, such as computing the orbits of the planets in the solar system, or a problem of a more abstract nature, such as Hilbert's problems. It can also be a problem ref... | Mathematics | Basics | null |
257243 | https://en.wikipedia.org/wiki/Pentaquark | Pentaquark | A pentaquark is a human-made subatomic particle, consisting of four quarks and one antiquark bound together; they are not known to occur naturally, or exist outside of experiments specifically carried out to create them.
As quarks have a baryon number of , and antiquarks of , the pentaquark would have a total baryon n... | Physical sciences | Fermions | Physics |
258733 | https://en.wikipedia.org/wiki/Knuth%27s%20up-arrow%20notation | Knuth's up-arrow notation | In mathematics, Knuth's up-arrow notation is a method of notation for very large integers, introduced by Donald Knuth in 1976.
In his 1947 paper, R. L. Goodstein introduced the specific sequence of operations that are now called hyperoperations. Goodstein also suggested the Greek names tetration, pentation, etc., for ... | Mathematics | Specific functions | null |
258765 | https://en.wikipedia.org/wiki/Tadorna | Tadorna | The shelducks, most species of which are found in the genus Tadorna (except for the Radjah shelduck, which is now found in its own monotypic genus Radjah), are a group of large birds in the Tadorninae subfamily of the Anatidae, the biological family that includes the ducks and most duck-like waterfowl such as the geese... | Biology and health sciences | Anseriformes | Animals |
258959 | https://en.wikipedia.org/wiki/Phone%20connector%20%28audio%29 | Phone connector (audio) | A phone connector is a family of cylindrically-shaped electrical connectors primarily for analog audio signals. Invented in the late 19th century for telephone switchboards, the phone connector remains in use for interfacing wired audio equipment, such as headphones, speakers, microphones, mixing consoles, and electron... | Technology | Media and communication: Basics | null |
258979 | https://en.wikipedia.org/wiki/Malnutrition | Malnutrition | Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.
Malnutrition is a category of diseases that includes undernutrition a... | Biology and health sciences | Health and fitness | null |
23765719 | https://en.wikipedia.org/wiki/Sulfur%20hexafluoride%20circuit%20breaker | Sulfur hexafluoride circuit breaker | Sulfur hexafluoride circuit breakers protect electrical power stations and distribution systems by interrupting electric currents, when tripped by a protective relay. Instead of oil, air, or a vacuum, a sulfur hexafluoride circuit breaker uses sulfur hexafluoride (SF6) gas to cool and quench the arc on opening a circui... | Technology | Electrical protective devices | null |
23768607 | https://en.wikipedia.org/wiki/51%20Pegasi%20b | 51 Pegasi b | 51 Pegasi b, officially named Dimidium , is an extrasolar planet approximately away in the constellation of Pegasus. It was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi, and marked a breakthrough in astronomical research. It is the prototype for a class of planets called h... | Physical sciences | Notable exoplanets | Astronomy |
12822286 | https://en.wikipedia.org/wiki/Conflict%20minerals%20law | Conflict minerals law | The eastern Democratic Republic of the Congo (DRC) has a history of conflict, where various armies, rebel groups, and outside actors have profited from mining while contributing to violence and exploitation during wars in the region. The four main end products of mining in the eastern DRC are tin, tungsten, tantalum, a... | Physical sciences | Earth science basics: General | Earth science |
15669707 | https://en.wikipedia.org/wiki/VK%20%28service%29 | VK (service) | VK (short for its original name VKontakte; , meaning InContact) is a Russian online social media and social networking service based in Saint Petersburg. VK is available in multiple languages but it is predominantly used by Russian speakers. VK users can message each other publicly or privately, edit these messages, cr... | Technology | Social network and blogging | null |
1240348 | https://en.wikipedia.org/wiki/Strength%20training | Strength training | Strength training, also known as weight training or resistance training, involves the performance of physical exercises that are designed to improve physical strength. It is often associated with the lifting of weights. It can also incorporate a variety of training techniques such as bodyweight exercises, isometrics, a... | Biology and health sciences | Physical fitness | Health |
1240378 | https://en.wikipedia.org/wiki/Symmetry%20breaking | Symmetry breaking | In physics, symmetry breaking is a phenomenon where a disordered but symmetric state collapses into an ordered, but less symmetric state. This collapse is often one of many possible bifurcations that a particle can take as it approaches a lower energy state. Due to the many possibilities, an observer may assume the res... | Physical sciences | Particle physics: General | Physics |
1240666 | https://en.wikipedia.org/wiki/Parity%20%28physics%29 | Parity (physics) | In physics, a parity transformation (also called parity inversion) is the flip in the sign of one spatial coordinate. In three dimensions, it can also refer to the simultaneous flip in the sign of all three spatial coordinates (a point reflection):
It can also be thought of as a test for chirality of a physical phenom... | Physical sciences | Quantum mechanics | Physics |
1240837 | https://en.wikipedia.org/wiki/Whistling%20duck | Whistling duck | The whistling ducks or tree ducks are a subfamily, Dendrocygninae, of the duck, goose and swan family of birds, Anatidae. In other taxonomic schemes, they are considered a separate family, Dendrocygnidae. Some taxonomists list only one genus, Dendrocygna, which contains eight living species, and one undescribed extin... | Biology and health sciences | Anseriformes | Animals |
1241988 | https://en.wikipedia.org/wiki/System%20of%20units%20of%20measurement | System of units of measurement | A system of units of measurement, also known as a system of units or system of measurement, is a collection of units of measurement and rules relating them to each other. Systems of measurement have historically been important, regulated and defined for the purposes of science and commerce. Instances in use include the... | Physical sciences | Measurement systems | Basics and measurement |
1242449 | https://en.wikipedia.org/wiki/Common%20collared%20lizard | Common collared lizard | The common collared lizard (Crotaphytus collaris), also commonly called eastern collared lizard, Oklahoma collared lizard, yellow-headed collared lizard, and collared lizard, is a North American species of lizard in the family Crotaphytidae. The common name "collared lizard" comes from the lizard's distinct coloration,... | Biology and health sciences | Iguania | Animals |
1242977 | https://en.wikipedia.org/wiki/Flocculation | Flocculation | In colloidal chemistry, flocculation is a process by which colloidal particles come out of suspension to sediment in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended, under th... | Physical sciences | Other separations | Chemistry |
1243550 | https://en.wikipedia.org/wiki/Rigid%20rotor | Rigid rotor | In rotordynamics, the rigid rotor is a mechanical model of rotating systems. An arbitrary rigid rotor is a 3-dimensional rigid object, such as a top. To orient such an object in space requires three angles, known as Euler angles. A special rigid rotor is the linear rotor requiring only two angles to describe, for examp... | Physical sciences | Molecular physics | Physics |
1243767 | https://en.wikipedia.org/wiki/Horn%20%28anatomy%29 | Horn (anatomy) | A horn is a permanent pointed projection on the head of various animals that consists of a covering of keratin and other proteins surrounding a core of live bone. Horns are distinct from antlers, which are not permanent.
In mammals, true horns are found mainly among the ruminant artiodactyls, in the families Antilocap... | Biology and health sciences | Skeletal system | Biology |
2577842 | https://en.wikipedia.org/wiki/Eurasian%20brown%20bear | Eurasian brown bear | The Eurasian brown bear (Ursus arctos arctos) is one of the most common subspecies of the brown bear, and is found in much of Eurasia. It is also called the European brown bear, common brown bear, common bear, and colloquially by many other names. The genetic diversity of present-day brown bears (Ursus arctos) has been... | Biology and health sciences | Bears | Animals |
2578372 | https://en.wikipedia.org/wiki/Atropisomer | Atropisomer | Atropisomers are stereoisomers arising because of hindered rotation about a single bond, where energy differences due to steric strain or other contributors create a barrier to rotation that is high enough to allow for isolation of individual rotamers.
They occur naturally and are of occasional importance in pharmaceut... | Physical sciences | Stereochemistry | Chemistry |
2578624 | https://en.wikipedia.org/wiki/Pseudocereal | Pseudocereal | A pseudocereal or pseudograin is one of any non-grasses that are used in much the same way as cereals (true cereals are grasses). Pseudocereals can be further distinguished from other non-cereal staple crops (such as potatoes) by their being processed like a cereal: their seed can be ground into flour and otherwise use... | Biology and health sciences | Pseudocereals | Plants |
2578746 | https://en.wikipedia.org/wiki/Homogeneity%20%28physics%29 | Homogeneity (physics) | In physics, a homogeneous material or system has the same properties at every point; it is uniform without irregularities. A uniform electric field (which has the same strength and the same direction at each point) would be compatible with homogeneity (all points experience the same physics). A material constructed wit... | Physical sciences | Physics basics: General | Physics |
2579168 | https://en.wikipedia.org/wiki/Scolopendra%20gigantea | Scolopendra gigantea | Scolopendra gigantea, also known as the Peruvian giant yellow-leg centipede or Amazonian giant centipede or "Giant Grumpalumpagus", is a centipede in the genus Scolopendra. It is the largest centipede species in the world, with a length exceeding . Specimens may have 21 or 23 segments. It is found in various places thr... | Biology and health sciences | Myriapoda | Animals |
2581444 | https://en.wikipedia.org/wiki/Spring%20steel | Spring steel | Spring steel is a name given to a wide range of steels used in the manufacture of different products, including swords, saw blades, springs and many more. These steels are generally low-alloy manganese, medium-carbon steel or high-carbon steel with a very high yield strength. This allows objects made of spring steel to... | Physical sciences | Iron alloys | Chemistry |
2581605 | https://en.wikipedia.org/wiki/Concurrent%20computing | Concurrent computing | Concurrent computing is a form of computing in which several computations are executed concurrently—during overlapping time periods—instead of sequentially—with one completing before the next starts.
This is a property of a system—whether a program, computer, or a network—where there is a separate execution point or "... | Technology | Computer science | null |
2582879 | https://en.wikipedia.org/wiki/Vacuum%20permittivity | Vacuum permittivity | Vacuum permittivity, commonly denoted (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical vacuum. It may also be referred to as the permittivity of free space, the electric constant, or the distributed capacitance of the vacuum. It is an ideal (baseline) p... | Physical sciences | Physical constants | Physics |
3524192 | https://en.wikipedia.org/wiki/NOR%20gate | NOR gate | The NOR gate is a digital logic gate that implements logical NOR - it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results. NOR is the result of the negation of the OR operator. It can also in ... | Technology | Digital logic | null |
3524381 | https://en.wikipedia.org/wiki/Human%20back | Human back | The human back, also called the dorsum (: dorsa), is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck. It is the surface of the body opposite from the chest and the abdomen. The vertebral column runs the length of the back and creates a central area of recession. T... | Biology and health sciences | Human anatomy | Health |
3524476 | https://en.wikipedia.org/wiki/Particle%20statistics | Particle statistics | Particle statistics is a particular description of multiple particles in statistical mechanics. A key prerequisite concept is that of a statistical ensemble (an idealization comprising the state space of possible states of a system, each labeled with a probability) that emphasizes properties of a large system as a whol... | Physical sciences | Statistical mechanics | Physics |
3526295 | https://en.wikipedia.org/wiki/Port%20of%20Barcelona | Port of Barcelona | The Port of Barcelona (, ; ) is a major port in Barcelona, Catalonia, Spain. Its are divided into three zones: Port Vell (the Old Port), the commercial/industrial port, and the logistics port (Barcelona Free Port). The port is managed by the Port Authority of Barcelona, itself owned by the state-owned Ports of the Sta... | Technology | Specific piers and ports | null |
3528600 | https://en.wikipedia.org/wiki/Coucal | Coucal | A coucal is one of about 30 species of birds in the cuckoo family. All of them belong in the subfamily Centropodinae and the genus Centropus. Unlike many Old World cuckoos, coucals are not brood parasites, though they do have their own reproductive peculiarity: all members of the genus are (to varying degrees) sex-role... | Biology and health sciences | Cuculiformes and relatives | Animals |
10553773 | https://en.wikipedia.org/wiki/Marine%20chronometer | Marine chronometer | A marine chronometer is a precision timepiece that is carried on a ship and employed in the determination of the ship's position by celestial navigation. It is used to determine longitude by comparing Greenwich Mean Time (GMT), and the time at the current location found from observations of celestial bodies. When fir... | Technology | Clocks | null |
10553857 | https://en.wikipedia.org/wiki/Sunflower%20sea%20star | Sunflower sea star | Pycnopodia helianthoides, commonly known as the sunflower sea star, is a large sea star found in the northeastern Pacific Ocean. The only species of its genus, it is among the largest sea stars in the world, with a maximum arm span of . Adult sunflower sea stars usually have 16 to 24 limbs. They vary in color. Sunflowe... | Biology and health sciences | Echinoderms | Animals |
8170365 | https://en.wikipedia.org/wiki/Bicycle%20parking%20rack | Bicycle parking rack | A bicycle parking rack, usually shortened to bike rack and also called a bicycle stand, is a device to which bicycles can be securely attached for parking purposes. It may be freestanding, or securely attached to the ground or a stationary object, such as a building. Indoor racks are commonly used for private bicycle p... | Technology | Road infrastructure | null |
18567040 | https://en.wikipedia.org/wiki/Intellectual%20disability | Intellectual disability | Intellectual disability (ID), also known as general learning disability (in the United Kingdom), and formerly mental retardation (in the United States), is a generalized neurodevelopmental disorder characterized by significant impairment in intellectual and adaptive functioning that is first apparent during childhood. ... | Biology and health sciences | Disability | null |
18567168 | https://en.wikipedia.org/wiki/Computer%20graphics%20%28computer%20science%29 | Computer graphics (computer science) | Computer graphics is a sub-field of computer science which studies methods for digitally synthesizing and manipulating visual content. Although the term often refers to the study of three-dimensional computer graphics, it also encompasses two-dimensional graphics and image processing.
Overview
Computer graphics studi... | Technology | Computer science | null |
465802 | https://en.wikipedia.org/wiki/Pygmy%20sperm%20whale | Pygmy sperm whale | The pygmy sperm whale (Kogia breviceps) is one of two extant species in the family Kogiidae in the sperm whale superfamily. They are not often sighted at sea, and most of what is known about them comes from the examination of stranded specimens.
Taxonomy
The pygmy sperm whale was first described by naturalist Henri M... | Biology and health sciences | Toothed whale | Animals |
465839 | https://en.wikipedia.org/wiki/Mung%20bean | Mung bean | The mung bean or green gram (Vigna radiata) is a plant species in the legume family. The mung bean is mainly cultivated in East, Southeast, and South Asia. It is used as an ingredient in both savoury and sweet dishes.
Names
The English names "mung" or "mungo" originated from the Hindi word (), which is derived from t... | Biology and health sciences | Pulses | Plants |
465886 | https://en.wikipedia.org/wiki/Parietal%20lobe | Parietal lobe | The parietal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The parietal lobe is positioned above the temporal lobe and behind the frontal lobe and central sulcus.
The parietal lobe integrates sensory information among various modalities, including spatial sense and navigation (pro... | Biology and health sciences | Nervous system | Biology |
465920 | https://en.wikipedia.org/wiki/Listeria%20monocytogenes | Listeria monocytogenes | Listeria monocytogenes is the species of pathogenic bacteria that causes the infection listeriosis. It is a facultative anaerobic bacterium, capable of surviving in the presence or absence of oxygen. It can grow and reproduce inside the host's cells and is one of the most virulent foodborne pathogens. Twenty to thirty ... | Biology and health sciences | Gram-positive bacteria | Plants |
465941 | https://en.wikipedia.org/wiki/Betula%20nigra | Betula nigra | Betula nigra, the black birch, river birch or water birch, is a species of birch native to the Eastern United States from New Hampshire west to southern Minnesota, and south to northern Florida and west to Texas. It is one of the few heat-tolerant birches in a family of mostly cold-weather trees which do not thrive in ... | Biology and health sciences | Fagales | Plants |
466192 | https://en.wikipedia.org/wiki/Thermal%20equilibrium | Thermal equilibrium | Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics. A system is said to be in thermal equilibrium with itself if the temperature within the system is spatia... | Physical sciences | Thermodynamics | Physics |
466322 | https://en.wikipedia.org/wiki/Temporal%20lobe | Temporal lobe | The temporal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The temporal lobe is located beneath the lateral fissure on both cerebral hemispheres of the mammalian brain.
The temporal lobe is involved in processing sensory input into derived meanings for the appropriate retention of... | Biology and health sciences | Nervous system | Biology |
466716 | https://en.wikipedia.org/wiki/Hundredweight | Hundredweight | The hundredweight (abbreviation: cwt), formerly also known as the centum weight or quintal, is a British imperial and United States customary unit of weight or mass. Its value differs between the United States customary and British imperial systems. The two values are distinguished in American English as the short and ... | Physical sciences | Mass and weight | Basics and measurement |
466746 | https://en.wikipedia.org/wiki/Mycoplasma%20pneumoniae | Mycoplasma pneumoniae | Mycoplasma pneumoniae is a species of very small-cell bacteria that lack a cell wall, in the class Mollicutes. M. pneumoniae is a human pathogen that causes the disease Mycoplasma pneumonia, a form of atypical bacterial pneumonia related to cold agglutinin disease.
It is one of the smallest self-replicating organisms ... | Biology and health sciences | Gram-positive bacteria | Plants |
466900 | https://en.wikipedia.org/wiki/Carpet%20shark | Carpet shark | Carpet sharks are sharks classified in the order Orectolobiformes . Sometimes the common name "carpet shark" (given because many species resemble ornately patterned carpets) is used interchangeably with "wobbegong", which is the common name of sharks in the family Orectolobidae. Carpet sharks have five gill slits, two ... | Biology and health sciences | Sharks | Animals |
466928 | https://en.wikipedia.org/wiki/Zebra%20shark | Zebra shark | The zebra shark (Stegostoma tigrinum) is a species of carpet shark and the sole member of the family Stegostomatidae. It is found throughout the tropical Indo-Pacific, frequenting coral reefs and sandy flats to a depth of . Adult zebra sharks are distinctive in appearance, with five longitudinal ridges on a cylindrical... | Biology and health sciences | Sharks | Animals |
467047 | https://en.wikipedia.org/wiki/Thermal%20energy | Thermal energy | The term "thermal energy" is often used ambiguously in physics and engineering. It can denote several different physical concepts, including:
Internal energy: The energy contained within a body of matter or radiation, excluding the potential energy of the whole system, and excluding the kinetic energy of the system m... | Physical sciences | Thermodynamics | Physics |
467147 | https://en.wikipedia.org/wiki/Radiative%20forcing | Radiative forcing | Radiative forcing (or climate forcing) is a concept used to quantify a change to the balance of energy flowing through a planetary atmosphere. Various factors contribute to this change in energy balance, such as concentrations of greenhouse gases and aerosols, and changes in surface albedo and solar irradiance. In more... | Physical sciences | Climate change | Earth science |
467164 | https://en.wikipedia.org/wiki/Bacteroidota | Bacteroidota | The phylum Bacteroidota (synonym Bacteroidetes) is composed of three large classes of Gram-negative, nonsporeforming, anaerobic or aerobic, and rod-shaped bacteria that are widely distributed in the environment, including in soil, sediments, and sea water, as well as in the guts and on the skin of animals.
Although so... | Biology and health sciences | Gram-negative bacteria | Plants |
467198 | https://en.wikipedia.org/wiki/Gallium%20nitride | Gallium nitride | Gallium nitride () is a binary III/V direct bandgap semiconductor commonly used in blue light-emitting diodes since the 1990s. The compound is a very hard material that has a Wurtzite crystal structure. Its wide band gap of 3.4 eV affords it special properties for applications in optoelectronics, high-power and high-fr... | Physical sciences | Ceramic compounds | Chemistry |
467832 | https://en.wikipedia.org/wiki/Electrophile | Electrophile | In chemistry, an electrophile is a chemical species that forms bonds with nucleophiles by accepting an electron pair. Because electrophiles accept electrons, they are Lewis acids. Most electrophiles are positively charged, have an atom that carries a partial positive charge, or have an atom that does not have an octet ... | Physical sciences | Concepts | Chemistry |
467899 | https://en.wikipedia.org/wiki/Systems%20biology | Systems biology | Systems biology is the computational and mathematical analysis and modeling of complex biological systems. It is a biology-based interdisciplinary field of study that focuses on complex interactions within biological systems, using a holistic approach (holism instead of the more traditional reductionism) to biological ... | Biology and health sciences | Biology basics | Biology |
468452 | https://en.wikipedia.org/wiki/Grenadiers%20%28fish%29 | Grenadiers (fish) | Grenadiers or rattails are generally large, brown to black gadiform marine fish of the subfamily Macrourinae, the largest subfamily of the family Macrouridae. Found at great depths from the Arctic to Antarctic, members of this subfamily are amongst the most abundant of the deep-sea fish.
The macrourins form a large an... | Biology and health sciences | Acanthomorpha | Animals |
1856394 | https://en.wikipedia.org/wiki/Helicoprion | Helicoprion | Helicoprion is a genus of extinct shark-like eugeneodont fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls", which in life were embedded in the lower jaw. As with most extinct cartilaginous fish, the skeleton is mostly unknown. Fossils of Helicoprion are... | Biology and health sciences | Prehistoric chondrichthyans | Animals |
1856816 | https://en.wikipedia.org/wiki/Laminaria | Laminaria | Laminaria is a genus of brown seaweed in the order Laminariales (kelp), comprising 31 species native to the north Atlantic and northern Pacific Oceans. This economically important genus is characterized by long, leathery laminae and relatively large size. Some species are called Devil's apron, due to their shape, or se... | Biology and health sciences | SAR supergroup | Plants |
1857163 | https://en.wikipedia.org/wiki/Granodiorite | Granodiorite | Granodiorite ( ) is a coarse-grained (phaneritic) intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar.
The term banatite is sometimes used informally for various rocks ranging from granite to diorite, including granodiorite.
Composition
According to the QAPF di... | Physical sciences | Igneous rocks | Earth science |
1859590 | https://en.wikipedia.org/wiki/Acaricide | Acaricide | Acaricides are pesticides that kill members of the arachnid subclass Acari, which includes ticks and mites.
Acaricides are used both in medicine and agriculture, although the desired selective toxicity differs between the two fields.
Terminology
More specific words are sometimes used, depending upon the targeted group... | Technology | Pest and disease control | null |
1859694 | https://en.wikipedia.org/wiki/Bioindicator | Bioindicator | A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example, copepods and other small water crustaceans that are present in many water bodies can be monitor... | Biology and health sciences | Ecology | Biology |
1859848 | https://en.wikipedia.org/wiki/American%20cockroach | American cockroach | The American cockroach (Periplaneta americana) is the largest species of common cockroach, and often considered a pest. In certain regions of the U.S. it is colloquially known as the waterbug, though it is not a true waterbug since it is not aquatic. It is also known as the ship cockroach, kakerlac, and Bombay canary. ... | Biology and health sciences | Cockroaches & Termites (Blattodea) | Animals |
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