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3513378 | https://en.wikipedia.org/wiki/Velvet%20crab | Velvet crab | The velvet crab (Necora puber), also known as the velvet swimming crab, devil crab, fighter crab, or lady crab, is a species of crab from the North-East Atlantic and the Mediterranean. It is the largest of the swimming crab family (Portunidae) found in British coastal waters. It has a carapace width of up to , and is t... | Biology and health sciences | Crabs and hermit crabs | Animals |
6182210 | https://en.wikipedia.org/wiki/Populus%20tremuloides | Populus tremuloides | Populus tremuloides is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen, trembling aspen, American aspen, mountain or golden aspen, trembling poplar, white poplar, and popple, as well as others. The trees have tall... | Biology and health sciences | Malpighiales | Plants |
6186026 | https://en.wikipedia.org/wiki/Alloy%20steel | Alloy steel | Alloy steel is steel that is alloyed with a variety of elements in amounts between 1.0% and 50% by weight, typically to improve its mechanical properties.
Types
Alloy steels divide into two groups: low and high alloy. The boundary between the two is disputed. Smith and Hashemi define the difference at 4.0%, while Deg... | Physical sciences | Iron alloys | Chemistry |
1848556 | https://en.wikipedia.org/wiki/Giraffe%20weevil | Giraffe weevil | The giraffe weevil (Trachelophorus giraffa) is a species of small weevil endemic to Madagascar. They are black-bodied and have bright red elytra covering their wings. Giraffe weevils are known for their elongated necks, with the males having necks 2 to 3 times the size of their female counterparts. There are several ad... | Biology and health sciences | Beetles (Coleoptera) | Animals |
1850694 | https://en.wikipedia.org/wiki/Drawing%20%28manufacturing%29 | Drawing (manufacturing) | Drawing is a manufacturing process that uses tensile forces to elongate metal, glass, or plastic. As the material is drawn (pulled), it stretches and becomes thinner, achieving a desired shape and thickness. Drawing is classified into two types: sheet metal drawing and wire, bar, and tube drawing. Sheet metal drawing i... | Technology | Metallurgy | null |
1851173 | https://en.wikipedia.org/wiki/Hercules%20beetle | Hercules beetle | The Hercules beetle (Dynastes hercules) is a species of rhinoceros beetle native to the rainforests of southern Mexico, Central America, South America, and the Lesser Antilles. It is the longest extant species of beetle in the world, and is also one of the largest flying insects in the world.
Etymology
Dynastes hercul... | Biology and health sciences | Beetles (Coleoptera) | Animals |
252814 | https://en.wikipedia.org/wiki/HSL%20and%20HSV | HSL and HSV | HSL and HSV are the two most common cylindrical-coordinate representations of points in an RGB color model. The two representations rearrange the geometry of RGB in an attempt to be more intuitive and perceptually relevant than the cartesian (cube) representation. Developed in the 1970s for computer graphics applicatio... | Physical sciences | Basics | Physics |
252827 | https://en.wikipedia.org/wiki/RGBA%20color%20model | RGBA color model | RGBA stands for red green blue alpha. While it is sometimes described as a color space, it is actually a three-channel RGB color model supplemented with a fourth alpha channel. Alpha indicates how opaque each pixel is and allows an image to be combined over others using alpha compositing, with transparent areas and ant... | Physical sciences | Basics | Physics |
253111 | https://en.wikipedia.org/wiki/ARPANET | ARPANET | The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the technical foundation of the Internet. The ARPANET was established by the Advanced R... | Technology | Internet | null |
253333 | https://en.wikipedia.org/wiki/Golden%20Delicious | Golden Delicious | Golden Delicious is a cultivar of apple. It is one of the 15 most popular apple cultivars in the United States. It is not closely related to Red Delicious.
History
Golden Delicious arose from a chance seedling, possibly a hybrid of Grimes Golden and Golden Reinette. The original tree was found on the family farm of ... | Biology and health sciences | Pomes | Plants |
253340 | https://en.wikipedia.org/wiki/Peking%20Man | Peking Man | Peking Man (Homo erectus pekinensis) is a subspecies of H. erectus which inhabited what is now northern China during the Middle Pleistocene. Its fossils have been found in a cave some southwest of Beijing (then referred to in the West as Peking), known as the Zhoukoudian Peking Man Site. The first fossil, a tooth, was... | Biology and health sciences | Homo | Biology |
253350 | https://en.wikipedia.org/wiki/Old%20World%20porcupine | Old World porcupine | The Old World porcupines, or Hystricidae, are large terrestrial rodents, distinguished by the spiny covering from which they take their name. They range over the south of Europe and the Levant, most of Africa, India, and Southeast Asia as far east as Flores. Although both the Old World and New World porcupine families ... | Biology and health sciences | Rodents | Animals |
253410 | https://en.wikipedia.org/wiki/Dickinsonia | Dickinsonia | Dickinsonia is a genus of extinct organism, most likely an animal, that lived during the late Ediacaran period in what is now Australia, China, Russia, and Ukraine. It is one of the best known members of the Ediacaran biota. The individual Dickinsonia typically resembles a bilaterally symmetrical ribbed oval. Its affin... | Biology and health sciences | Other | Animals |
253840 | https://en.wikipedia.org/wiki/Bus%20station | Bus station | A bus station or a bus interchange is a structure where city buses or intercity buses stop to pick up and drop off passengers. While the term bus depot can also be used to refer to a bus station, it can also refer to a bus garage. A bus station is larger than a bus stop, which is usually simply a place on the roadside,... | Technology | Concepts of ground transport | null |
254062 | https://en.wikipedia.org/wiki/Mast%20cell | Mast cell | A mast cell (also known as a mastocyte or a labrocyte) is a resident cell of connective tissue that contains many granules rich in histamine and heparin. Specifically, it is a type of granulocyte derived from the myeloid stem cell that is a part of the immune and neuroimmune systems. Mast cells were discovered by Fried... | Biology and health sciences | Circulatory system | Biology |
254127 | https://en.wikipedia.org/wiki/Double%20bond | Double bond | In chemistry, a double bond is a covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond. Double bonds occur most commonly between two carbon atoms, for example in alkenes. Many double bonds exist between two different elements: for example, in a carbonyl group between a carb... | Physical sciences | Bonding | Chemistry |
254443 | https://en.wikipedia.org/wiki/Convergent%20boundary | Convergent boundary | A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction. The subduction zone can be defined by a plane where many earthquakes occur, called the Wadati–Benioff zone. These ... | Physical sciences | Tectonics | Earth science |
254452 | https://en.wikipedia.org/wiki/Planetary%20differentiation | Planetary differentiation | In planetary science, planetary differentiation is the process by which the chemical elements of a planetary body accumulate in different areas of that body, due to their physical or chemical behavior (e.g. density and chemical affinities). The process of planetary differentiation is mediated by partial melting with he... | Physical sciences | Planetary science | Astronomy |
254510 | https://en.wikipedia.org/wiki/Galvanic%20cell | Galvanic cell | A galvanic cell or voltaic cell, named after the scientists Luigi Galvani and Alessandro Volta, respectively, is an electrochemical cell in which an electric current is generated from spontaneous oxidation–reduction reactions. An example of a galvanic cell consists of two different metals, each immersed in separate bea... | Physical sciences | Electrochemistry | Chemistry |
254769 | https://en.wikipedia.org/wiki/Research%20and%20development | Research and development | Research and development (R&D or R+D), known in some countries as experiment and design, is the set of innovative activities undertaken by corporations or governments in developing new services or products. R&D constitutes the first stage of development of a potential new service or the production process.
Although R&... | Technology | General | null |
254777 | https://en.wikipedia.org/wiki/Isometry | Isometry | In mathematics, an isometry (or congruence, or congruent transformation) is a distance-preserving transformation between metric spaces, usually assumed to be bijective. The word isometry is derived from the Ancient Greek: ἴσος isos meaning "equal", and μέτρον metron meaning "measure". If the transformation is from a me... | Mathematics | Geometry: General | null |
254930 | https://en.wikipedia.org/wiki/Band-pass%20filter | Band-pass filter | A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
It is the inverse of a band-stop filter.
Description
In electronics and signal processing, a filter is usually a two-port circuit or device which removes frequ... | Technology | Signal processing | null |
254938 | https://en.wikipedia.org/wiki/Scissors | Scissors | Scissors are hand-operated shearing tools. A pair of scissors consists of a pair of blades pivoted so that the sharpened edges slide against each other when the handles (bows) opposite to the pivot are closed. Scissors are used for cutting various thin materials, such as paper, cardboard, metal foil, cloth, rope, and w... | Technology | Hand tools | null |
254945 | https://en.wikipedia.org/wiki/Hinge | Hinge | A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation, with all other translations or rotations prevented; thus a hinge has one degree of free... | Technology | Mechanisms | null |
255084 | https://en.wikipedia.org/wiki/Sawshark | Sawshark | A sawshark or saw shark is a member of a shark order (Pristiophoriformes ) bearing a unique long, saw-like rostrum (snout or bill) edged with sharp teeth, which they use to slash and disable their prey. There are eight species within the Pristiophoriformes, including the longnose or common sawshark (Pristiophorus cirra... | Biology and health sciences | Sharks | Animals |
255158 | https://en.wikipedia.org/wiki/Grain%20elevator | Grain elevator | A grain elevator or grain terminal is a facility designed to stockpile or store grain. In the grain trade, the term "grain elevator" also describes a tower containing a bucket elevator or a pneumatic conveyor, which scoops up grain from a lower level and deposits it in a silo or other storage facility.
In most cases, ... | Technology | Buildings and infrastructure | null |
255244 | https://en.wikipedia.org/wiki/Seawater | Seawater | Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately of dissolved salts (predominantly sodium () and chloride () ions). The avera... | Physical sciences | Oceanography | Earth science |
255245 | https://en.wikipedia.org/wiki/Fubini%27s%20theorem | Fubini's theorem | In mathematical analysis, Fubini's theorem characterizes the conditions under which it is possible to compute a double integral by using an iterated integral. It was introduced by Guido Fubini in 1907. The theorem states that if a function is Lebesgue integrable on a rectangle , then one can evaluate the double integr... | Mathematics | Multivariable and vector calculus | null |
255297 | https://en.wikipedia.org/wiki/Coronal%20mass%20ejection | Coronal mass ejection | A coronal mass ejection (CME) is a significant ejection of plasma mass from the Sun's corona into the heliosphere. CMEs are often associated with solar flares and other forms of solar activity, but a broadly accepted theoretical understanding of these relationships has not been established.
If a CME enters interplanet... | Physical sciences | Solar System | Astronomy |
255313 | https://en.wikipedia.org/wiki/Saffir%E2%80%93Simpson%20scale | Saffir–Simpson scale | The Saffir–Simpson hurricane wind scale (SSHWS) classifies hurricanes—which in the Western Hemisphere are tropical cyclones that exceed the intensities of tropical depressions and tropical storms—into five categories distinguished by the intensities of their sustained winds. This measuring system was formerly known as ... | Physical sciences | Storms | Earth science |
255415 | https://en.wikipedia.org/wiki/New%20World%20barbet | New World barbet | The New World barbets are a family, Capitonidae, of 15 birds in the order Piciformes, which inhabit humid forests in Central and South America. They are closely related to the toucans.
The New World barbets are plump birds, with short necks and large heads. They get their name from the bristles that fringe their heavy... | Biology and health sciences | Piciformes | Animals |
255432 | https://en.wikipedia.org/wiki/Honeyguide | Honeyguide | Honeyguides (family Indicatoridae) are a family of birds in the order Piciformes. They are also known as indicator birds, or honey birds, although the latter term is also used more narrowly to refer to species of the genus Prodotiscus. They have an Old World tropical distribution, with the greatest number of species in... | Biology and health sciences | Piciformes | null |
255446 | https://en.wikipedia.org/wiki/Thermodynamic%20potential | Thermodynamic potential | A thermodynamic potential (or more accurately, a thermodynamic potential energy) is a scalar quantity used to represent the thermodynamic state of a system. Just as in mechanics, where potential energy is defined as capacity to do work, similarly different potentials have different meanings. The concept of thermodynami... | Physical sciences | Thermodynamics | Physics |
255447 | https://en.wikipedia.org/wiki/Helmholtz%20free%20energy | Helmholtz free energy | In thermodynamics, the Helmholtz free energy (or Helmholtz energy) is a thermodynamic potential that measures the useful work obtainable from a closed thermodynamic system at a constant temperature (isothermal). The change in the Helmholtz energy during a process is equal to the maximum amount of work that the system c... | Physical sciences | Thermodynamics | Physics |
255463 | https://en.wikipedia.org/wiki/B%28e%29%20star | B(e) star | A B[e] star, frequently called a B[e]-type star, is a B-type star with distinctive forbidden neutral or low ionisation emission lines in its spectrum. The designation results from combining the spectral class B, the lowercase e denoting emission in the spectral classification system, and the surrounding square brackets... | Physical sciences | Stellar astronomy | Astronomy |
255468 | https://en.wikipedia.org/wiki/Excretion | Excretion | Excretion is elimination of metabolic waste, which is an essential process in all organisms. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. For example, placental mammals expel urine f... | Biology and health sciences | Basics_3 | null |
2566958 | https://en.wikipedia.org/wiki/Gala%20%28apple%29 | Gala (apple) | Gala is an apple cultivar with a sweet, mild flavor, a crisp but not hard texture, and a striped or mottled orange or reddish appearance. Originating from New Zealand in the 1930s, similar to most named apples, it is clonally propagated. In 2018, it surpassed Red Delicious as the apple cultivar with the highest product... | Biology and health sciences | Pomes | Plants |
2567707 | https://en.wikipedia.org/wiki/Formal%20specification | Formal specification | In computer science, formal specifications are mathematically based techniques whose purpose is to help with the implementation of systems and software. They are used to describe a system, to analyze its behavior, and to aid in its design by verifying key properties of interest through rigorous and effective reasoning ... | Technology | Software development: General | null |
2571116 | https://en.wikipedia.org/wiki/Arthropathy | Arthropathy | An arthropathy is a disease of a joint.
Types
Arthritis is a form of arthropathy that involves inflammation of one or more joints, while the term arthropathy may be used regardless of whether there is inflammation or not.
Joint diseases can be classified as follows:
Arthritis
Infectious arthritis
Septic arthritis (i... | Biology and health sciences | Specific diseases | Health |
22241037 | https://en.wikipedia.org/wiki/Evolution%20of%20brachiopods | Evolution of brachiopods | The origin of the brachiopods is uncertain; they either arose from reduction of a multi-plated tubular organism, or from the folding of a slug-like organism with a protective shell on either end. Since their Cambrian origin, the phylum rose to a Palaeozoic dominance, but dwindled during the Mesozoic.
Origins
Brachio... | Biology and health sciences | Basics_4 | Biology |
22249817 | https://en.wikipedia.org/wiki/Genetic%20admixture | Genetic admixture | Genetic admixture occurs when previously isolated populations interbreed resulting in a population that is descended from multiple sources. It can occur between species, such as with hybrids, or within species, such as when geographically distant individuals migrate to new regions. It results in gene pool that is a mix... | Biology and health sciences | Basics_4 | Biology |
4736453 | https://en.wikipedia.org/wiki/Vial | Vial | A vial (also known as a phial or flacon) is a small glass or plastic vessel or bottle, often used to store medication in the form of liquids, powders, or capsules. They can also be used as scientific sample vessels; for instance, in autosampler devices in analytical chromatography. Vial-like glass containers date back ... | Technology | Containers | null |
19584690 | https://en.wikipedia.org/wiki/Wood%20ash | Wood ash | Wood ash is the powdery residue remaining after the combustion of wood, such as burning wood in a fireplace, bonfire, or an industrial power plant. It is largely composed of calcium compounds, along with other non-combustible trace elements present in the wood, and has been used for many purposes throughout history.
C... | Physical sciences | Salts and ions: General | Chemistry |
15648231 | https://en.wikipedia.org/wiki/Facial%20skeleton | Facial skeleton | The facial skeleton comprises the facial bones that may attach to build a portion of the skull. The remainder of the skull is the neurocranium.
In human anatomy and development, the facial skeleton is sometimes called the membranous viscerocranium, which comprises the mandible and dermatocranial elements that are not ... | Biology and health sciences | Human anatomy | Health |
15652764 | https://en.wikipedia.org/wiki/Non-linear%20least%20squares | Non-linear least squares | Non-linear least squares is the form of least squares analysis used to fit a set of m observations with a model that is non-linear in n unknown parameters (m ≥ n). It is used in some forms of nonlinear regression. The basis of the method is to approximate the model by a linear one and to refine the parameters by succ... | Mathematics | Statistics | null |
462030 | https://en.wikipedia.org/wiki/Alidade | Alidade | An alidade () (archaic forms include alhidade, alhidad, alidad) or a turning board is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, for example, to triangulate a scale map on site using a plane table drawing of intersecting lines in the direction of th... | Technology | Surveying tools | null |
462178 | https://en.wikipedia.org/wiki/Polyculture | Polyculture | In agriculture, polyculture is the practice of growing more than one crop species together in the same place at the same time, in contrast to monoculture, which had become the dominant approach in developed countries by 1950. Traditional examples include the intercropping of the Three Sisters, namely maize, beans, and ... | Technology | Agriculture_2 | null |
462396 | https://en.wikipedia.org/wiki/Baryogenesis | Baryogenesis | In physical cosmology, baryogenesis (also known as baryosynthesis) is the physical process that is hypothesized to have taken place during the early universe to produce baryonic asymmetry, i.e. the imbalance of matter (baryons) and antimatter (antibaryons) in the observed universe.
One of the outstanding problems in m... | Physical sciences | Physical cosmology | Astronomy |
462534 | https://en.wikipedia.org/wiki/Lotka%E2%80%93Volterra%20equations | Lotka–Volterra equations | The Lotka–Volterra equations, also known as the Lotka–Volterra predator–prey model, are a pair of first-order nonlinear differential equations, frequently used to describe the dynamics of biological systems in which two species interact, one as a predator and the other as prey. The populations change through time accor... | Biology and health sciences | Ecology | Biology |
462707 | https://en.wikipedia.org/wiki/Brush | Brush | A brush is a common tool with bristles, wire or other filaments. It generally consists of a handle or block to which filaments are affixed in either a parallel or perpendicular orientation, depending on the way the brush is to be gripped during use. The material of both the block and bristles or filaments is chosen to ... | Technology | Artist's tools | null |
463271 | https://en.wikipedia.org/wiki/Salbutamol | Salbutamol | Salbutamol, also known as albuterol and sold under the brand name Ventolin among others, is a medication that opens up the medium and large airways in the lungs. It is a short-acting β2 adrenergic receptor agonist that causes relaxation of airway smooth muscle. It is used to treat asthma, including asthma attacks and e... | Biology and health sciences | Specific drugs | Health |
463327 | https://en.wikipedia.org/wiki/Brussels%20Metro | Brussels Metro | The Brussels Metro ( ; ) is a rapid transit system serving a large part of the Brussels-Capital Region of Belgium. It consists of four conventional metro lines and three premetro lines. The metro-grade lines are M1, M2, M5, and M6 with some shared sections, covering a total of , with 59 metro-only stations. The premet... | Technology | Europe_2 | null |
463408 | https://en.wikipedia.org/wiki/Airframe | Airframe | The mechanical structure of an aircraft is known as the airframe. This structure is typically considered to include the fuselage, undercarriage, empennage and wings, and excludes the propulsion system.
Airframe design is a field of aerospace engineering that combines aerodynamics, materials technology and manufacturi... | Technology | Aircraft components | null |
463601 | https://en.wikipedia.org/wiki/Yttrium%20barium%20copper%20oxide | Yttrium barium copper oxide | Yttrium barium copper oxide (YBCO) is a family of crystalline chemical compounds that display high-temperature superconductivity; it includes the first material ever discovered to become superconducting above the boiling point of liquid nitrogen [] at about .
Many YBCO compounds have the general formula (also known a... | Physical sciences | Ceramic compounds | Chemistry |
463733 | https://en.wikipedia.org/wiki/Fiddler%20crab | Fiddler crab | The fiddler crab or calling crab can be one of the hundred species of semiterrestrial marine crabs in the family Ocypodidae. These crabs are well known for their extreme sexual dimorphism, where the male crabs have a major claw significantly larger than their minor claw, whilst females claws are both the same size. The... | Biology and health sciences | Crabs and hermit crabs | Animals |
463734 | https://en.wikipedia.org/wiki/Public%20health | Public health | Public health is "the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals". Analyzing the determinants of health of a population and the threats it faces is the basis for... | Biology and health sciences | Fields of medicine | null |
463835 | https://en.wikipedia.org/wiki/Life%20on%20Mars | Life on Mars | The possibility of life on Mars is a subject of interest in astrobiology due to the planet's proximity and similarities to Earth. To date, no conclusive evidence of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had... | Physical sciences | Solar System | Astronomy |
464073 | https://en.wikipedia.org/wiki/Hair%20follicle | Hair follicle | The hair follicle is an organ found in mammalian skin. It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions. The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. This complex interaction induces... | Biology and health sciences | Integumentary system | Biology |
464075 | https://en.wikipedia.org/wiki/Sebaceous%20gland | Sebaceous gland | A sebaceous gland or oil gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals. In humans, sebaceous glands occur in the greatest number on the face and scalp, but also on all parts of the skin exc... | Biology and health sciences | Exocrine system | Biology |
464150 | https://en.wikipedia.org/wiki/Pluvial%20lake | Pluvial lake | A pluvial lake is a body of water that accumulated in a basin because of a greater moisture availability resulting from changes in temperature and/or precipitation. These intervals of greater moisture availability are not always contemporaneous with glacial periods. Pluvial lakes are typically closed lakes that occupie... | Physical sciences | Hydrology | Earth science |
464301 | https://en.wikipedia.org/wiki/Pinus%20strobus | Pinus strobus | Pinus strobus, commonly called the eastern white pine, northern white pine, white pine, Weymouth pine (British), and soft pine is a large pine native to eastern North America. It occurs from Newfoundland, Canada, west through the Great Lakes region to southeastern Manitoba and Minnesota, United States, and south along ... | Biology and health sciences | Pinaceae | Plants |
464400 | https://en.wikipedia.org/wiki/Aquificota | Aquificota | The Aquificota phylum is a diverse collection of bacteria that live in harsh environmental settings. The name Aquificota was given to this phylum based on an early genus identified within this group, Aquifex (“water maker”), which is able to produce water by oxidizing hydrogen. They have been found in springs, pools, a... | Biology and health sciences | Gram-negative bacteria | Plants |
464545 | https://en.wikipedia.org/wiki/Strepsirrhini | Strepsirrhini | Strepsirrhini or Strepsirhini (; ) is a suborder of primates that includes the lemuriform primates, which consist of the lemurs of Madagascar, galagos ("bushbabies") and pottos from Africa, and the lorises from India and southeast Asia. Collectively they are referred to as strepsirrhines. Also belonging to the suborder... | Biology and health sciences | Primates | null |
465008 | https://en.wikipedia.org/wiki/Eddy%20current | Eddy current | In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within cond... | Physical sciences | Electrodynamics | null |
6193459 | https://en.wikipedia.org/wiki/Boninite | Boninite | Boninite is an extrusive rock high in both magnesium and silica, thought to be usually formed in fore-arc environments, typically during the early stages of subduction. The rock is named for its occurrence in the Izu-Bonin arc south of Japan. It is characterized by extreme depletion in incompatible trace elements that ... | Physical sciences | Igneous rocks | Earth science |
6194438 | https://en.wikipedia.org/wiki/U-shaped%20valley | U-shaped valley | U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular. They have a characteristic U shape in cross-section, with steep, straight sides and a flat or rounded bottom (by contrast, valleys carved by rivers tend... | Physical sciences | Glacial landforms | Earth science |
6196410 | https://en.wikipedia.org/wiki/Koel | Koel | The true koels, Eudynamys, are a genus of cuckoos from Asia, Australia and the Pacific. They are large sexually dimorphic cuckoos that eat fruits and insects and have loud distinctive calls. They are brood parasites, laying their eggs in the nests of other species.
Taxonomy
The genus Eudynamys was introduced in 1827 ... | Biology and health sciences | Cuculiformes and relatives | Animals |
1235913 | https://en.wikipedia.org/wiki/Radiative%20zone | Radiative zone | A radiative zone is a layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion and thermal conduction, rather than by convection. Energy travels through the radiative zone in the form of electromagnetic radiation as photons.
Matter in a radiative zone is so d... | Physical sciences | Stellar astronomy | Astronomy |
1235959 | https://en.wikipedia.org/wiki/Convection%20zone | Convection zone | A convection zone, convective zone or convective region of a star is a layer which is unstable due to convection. Energy is primarily or partially transported by convection in such a region. In a radiation zone, energy is transported by radiation and conduction.
Stellar convection consists of mass movement of plasma w... | Physical sciences | Stellar astronomy | Astronomy |
1236041 | https://en.wikipedia.org/wiki/Cucumis%20metuliferus | Cucumis metuliferus | Cucumis metuliferus commonly called the African horned cucumber (shortened to horned cucumber), horned melon, spiked melon, jelly melon, or kiwano, is an annual vine in the cucumber and melon family Cucurbitaceae. Its fruit has horn-like spines, hence the name "horned melon". The ripe fruit has orange skin and lime-gr... | Biology and health sciences | Melons | Plants |
1236266 | https://en.wikipedia.org/wiki/Muridae | Muridae | The Muridae, or murids, are either the largest or second-largest family of rodents and of mammals, containing approximately 870 species, including many species of mice, rats, and gerbils found naturally throughout Eurasia, Africa, and Australia.
The name Muridae comes from the Latin (genitive ), meaning "mouse", sinc... | Biology and health sciences | Rodents | null |
1236472 | https://en.wikipedia.org/wiki/Chlorite%20group | Chlorite group | The chlorites are the group of phyllosilicate minerals common in low-grade metamorphic rocks and in altered igneous rocks. Greenschist, formed by metamorphism of basalt or other low-silica volcanic rock, typically contains significant amounts of chlorite.
Chlorite minerals show a wide variety of compositions, in which... | Physical sciences | Silicate minerals | Earth science |
1236730 | https://en.wikipedia.org/wiki/Neoplasm | Neoplasm | A neoplasm () is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is removed. This abnormal ... | Biology and health sciences | Cancer | null |
1237393 | https://en.wikipedia.org/wiki/Ligand%20field%20theory | Ligand field theory | Ligand field theory (LFT) describes the bonding, orbital arrangement, and other characteristics of coordination complexes. It represents an application of molecular orbital theory to transition metal complexes. A transition metal ion has nine valence atomic orbitals - consisting of five nd, one (n+1)s, and three (n+1)p... | Physical sciences | Bond structure | Chemistry |
1237983 | https://en.wikipedia.org/wiki/Tamarin | Tamarin | The tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus Saguinus. They are the first offshoot in the Callitrichidae tree, and therefore are the sister group of a clade formed by the lion tamarins, Goeldi's monkeys and marmosets.
Taxonomy and evolutionary history
Hershkovitz (1977)... | Biology and health sciences | New World monkeys | Animals |
1238041 | https://en.wikipedia.org/wiki/Abies%20grandis | Abies grandis | Abies grandis (grand fir, giant fir, lowland white fir, great silver fir, western white fir, Vancouver fir, or Oregon fir) is a fir native to northwestern North America, occurring at altitudes of sea level to . It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range.
The tree typically gr... | Biology and health sciences | Pinaceae | Plants |
1238181 | https://en.wikipedia.org/wiki/Blueschist | Blueschist | Blueschist (), also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures (), approximately corresponding to a depth of . The blue color of the rock comes from the presence of the predominant minerals glaucoph... | Physical sciences | Metamorphic rocks | Earth science |
1238210 | https://en.wikipedia.org/wiki/Enol | Enol | In organic chemistry, enols are a type of functional group or intermediate in organic chemistry containing a group with the formula (R = many substituents). The term enol is an abbreviation of alkenol, a portmanteau deriving from "-ene"/"alkene" and the "-ol". Many kinds of enols are known.
Keto–enol tautomerism ref... | Physical sciences | Concepts: General | Chemistry |
1238513 | https://en.wikipedia.org/wiki/Plesiosaurus | Plesiosaurus | Plesiosaurus (Greek: (), near to + (), lizard) is a genus of extinct, large marine sauropterygian reptile that lived during the Early Jurassic. It is known by nearly complete skeletons from the Lias of England. It is distinguishable by its small head, long and slender neck, broad turtle-like body, a short tail, and t... | Biology and health sciences | Prehistoric marine reptiles | Animals |
1238652 | https://en.wikipedia.org/wiki/Capuchin%20monkey | Capuchin monkey | The capuchin monkeys () are New World monkeys of the subfamily Cebinae. They are readily identified as the "organ grinder" monkey, and have been used in many movies and television shows. The range of capuchin monkeys includes some tropical forests in Central America and South America as far south as northern Argentina.... | Biology and health sciences | Primates | null |
1239464 | https://en.wikipedia.org/wiki/Squirrel%20monkey | Squirrel monkey | Squirrel monkeys are New World monkeys of the genus Saimiri. Saimiri is the only genus in the subfamily Saimiriinae. The name of the genus is of Tupi origin (sai-mirím or çai-mbirín, with sai meaning 'monkey' and mirím meaning 'small') and was also used as an English name by early researchers.
Squirrel monkeys live in... | Biology and health sciences | New World monkeys | Animals |
18545292 | https://en.wikipedia.org/wiki/GitHub | GitHub | GitHub () is a proprietary developer platform that allows developers to create, store, manage, and share their code. It uses Git to provide distributed version control and GitHub itself provides access control, bug tracking, software feature requests, task management, continuous integration, and wikis for every project... | Technology | Utility | null |
3518068 | https://en.wikipedia.org/wiki/Complex%20post-traumatic%20stress%20disorder | Complex post-traumatic stress disorder | Complex post-traumatic stress disorder (CPTSD, cPTSD, or hyphenated C-PTSD) is a stress-related mental and behavioral disorder generally occurring in response to complex traumas (i.e., commonly prolonged or repetitive exposures to a series of traumatic events, from which one sees little or no chance to escape).
In the... | Biology and health sciences | Mental disorders | Health |
3520977 | https://en.wikipedia.org/wiki/Synodontidae | Synodontidae | The Synodontidae or lizardfishes are benthic (bottom-dwelling) marine and estuarine bony fishes that belong to the aulopiform fish order, a diverse group of marine ray-finned fish consisting of some 15 extant and several prehistoric families. They are found in tropical and subtropical marine waters throughout the world... | Biology and health sciences | Aulopiformes | Animals |
3521050 | https://en.wikipedia.org/wiki/XOR%20gate | XOR gate | XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd. An XOR gate implements an exclusive or () from mathematical logic; that is, a true output results if one, and only one, of the inputs to the gate is true. ... | Technology | Digital logic | null |
3521055 | https://en.wikipedia.org/wiki/Ranatra | Ranatra | Ranatra is a genus of slender predatory insects of the family Nepidae, known as water scorpions or water stick-insects. There are more than 140 Ranatra species found in freshwater habitats around the world, both in warm and temperate regions, with the highest diversity in South America (almost 50 species) and Asia (abo... | Biology and health sciences | Hemiptera (true bugs) | Animals |
3521816 | https://en.wikipedia.org/wiki/XNOR%20gate | XNOR gate | The XNOR gate (sometimes ENOR, EXNOR, NXOR, XAND and pronounced as Exclusive NOR) is a digital logic gate whose function is the logical complement of the Exclusive OR (XOR) gate. It is equivalent to the logical connective () from mathematical logic, also known as the material biconditional. The two-input version implem... | Technology | Digital logic | null |
1853027 | https://en.wikipedia.org/wiki/Intel%20High%20Definition%20Audio | Intel High Definition Audio | Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard.
Features
The Intel High Definition Audio specification includes the following f... | Technology | Computer hardware | null |
1853763 | https://en.wikipedia.org/wiki/Post-nasal%20drip | Post-nasal drip | Post-nasal drip (PND), also known as upper airway cough syndrome (UACS), occurs when excessive mucus is produced by the nasal mucosa. The excess mucus accumulates in the back of the nose, and eventually in the throat once it drips down the back of the throat. It can be caused by rhinitis, sinusitis, gastroesophageal re... | Biology and health sciences | Symptoms and signs | Health |
1853838 | https://en.wikipedia.org/wiki/Web%20content%20management%20system | Web content management system | A web content management system (WCM or WCMS) is a software content management system (CMS) specifically for web content. It provides website authoring, collaboration, and administration tools that help users with little knowledge of web programming languages or markup languages create and manage website content. A WC... | Technology | Computer software | null |
1854949 | https://en.wikipedia.org/wiki/Stibine | Stibine | Stibine (IUPAC name: stibane) is a chemical compound with the formula SbH3. A pnictogen hydride, this colourless, highly toxic gas is the principal covalent hydride of antimony, and a heavy analogue of ammonia. The molecule is pyramidal with H–Sb–H angles of 91.7° and Sb–H distances of 170.7 pm (1.707 Å). The smell of ... | Physical sciences | Hydrogen compounds | Chemistry |
1855357 | https://en.wikipedia.org/wiki/Ecosystem%20service | Ecosystem service | Ecosystem services are the various benefits that humans derive from healthy ecosystems. These ecosystems, when functioning well, offer such things as provision of food, natural pollination of crops, clean air and water, decomposition of wastes, or flood control. Ecosystem services are grouped into four broad categories... | Biology and health sciences | Ecology | Biology |
20786042 | https://en.wikipedia.org/wiki/Cybernetics | Cybernetics | Cybernetics is the transdisciplinary study of circular causal processes such as feedback and recursion, where the effects of a system's actions (its outputs) return as inputs to that system, influencing subsequent action. It is concerned with general principles that are relevant across multiple contexts, including in e... | Technology | Biotechnology | null |
2571938 | https://en.wikipedia.org/wiki/Jacob%27s%20staff | Jacob's staff | The term Jacob's staff is used to refer to several things, also known as cross-staff, a ballastella, a fore-staff, a ballestilla, or a balestilha. In its most basic form, a Jacob's staff is a stick or pole with length markings; most staffs are much more complicated than that, and usually contain a number of measureme... | Technology | Navigation | null |
2575985 | https://en.wikipedia.org/wiki/Herpetic%20whitlow | Herpetic whitlow | A herpetic whitlow is a herpes lesion (whitlow), typically on a finger or thumb, caused by the herpes simplex virus (HSV). Occasionally infection occurs on the toes or on the nail cuticle. Herpes whitlow can be caused by infection by HSV-1 or HSV-2. HSV-1 whitlow is often contracted by health care workers that come in... | Biology and health sciences | Viral diseases | Health |
2576307 | https://en.wikipedia.org/wiki/Oxide%20mineral | Oxide mineral | The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class. Minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately.
Simple ox... | Physical sciences | Minerals | Earth science |
2577153 | https://en.wikipedia.org/wiki/Juniperus%20californica | Juniperus californica | Juniperus californica, the California juniper, is a species of juniper native to southwestern North America.
Description
Juniperus californica is a shrub or small tree reaching , but rarely up to tall. The bark is ashy gray, typically thin, and appears to be "shredded". The shoots are fairly thick compared to most j... | Biology and health sciences | Cupressaceae | Plants |
772405 | https://en.wikipedia.org/wiki/Harvest | Harvest | Harvesting is the process of collecting plants, animals, or fish (as well as fungi) as food, especially the process of gathering mature crops, and "the harvest" also refers to the collected crops. Reaping is the cutting of grain or pulses for harvest, typically using a scythe, sickle, or reaper. On smaller farms with m... | Technology | Horticultural techniques | null |
773153 | https://en.wikipedia.org/wiki/Illuminance | Illuminance | In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit ar... | Physical sciences | Optics | Physics |
773271 | https://en.wikipedia.org/wiki/AC%20power%20plugs%20and%20sockets | AC power plugs and sockets | AC power plugs and sockets connect devices to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically-operated device, often via a cable. A socket (also known as a receptacle or outlet) is fixed in place, often on the internal walls of buildings, and is connected to a... | Technology | Power transmission | null |
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