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252572 | https://en.wikipedia.org/wiki/Glory%20%28optical%20phenomenon%29 | Glory (optical phenomenon) | A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that comprise mist or clouds. The glory consists of one or more concentric, successively dimmer rings, each of which is red... | Physical sciences | Atmospheric optics | Earth science |
252582 | https://en.wikipedia.org/wiki/Landscape%20ecology | Landscape ecology | Landscape ecology is the science of studying and improving relationships between ecological processes in the environment and particular ecosystems. This is done within a variety of landscape scales, development spatial patterns, and organizational levels of research and policy. Landscape ecology can be described as the... | Biology and health sciences | Ecology | Biology |
252628 | https://en.wikipedia.org/wiki/Black-headed%20gull | Black-headed gull | The black-headed gull (Chroicocephalus ridibundus) is a small gull that breeds in much of the Palearctic in Europe and Asia, and also locally in smaller numbers in coastal eastern Canada. Most of the population is migratory and winters further south, but many also remain in the milder areas of northwestern Europe. It w... | Biology and health sciences | Charadriiformes | Animals |
252719 | https://en.wikipedia.org/wiki/Colugo | Colugo | Colugos (), flying lemurs, or cobegos (), are arboreal gliding euarchontogliran mammals that are native to Southeast Asia. Their closest evolutionary relatives are primates. There are just two living species of colugos: the Sunda flying lemur (Galeopterus variegatus) and the Philippine flying lemur (Cynocephalus volans... | Biology and health sciences | Mammals: General | Animals |
252725 | https://en.wikipedia.org/wiki/Wheelbarrow | Wheelbarrow | A wheelbarrow is a small hand-propelled load-bearing vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles at the rear. The term "wheelbarrow" is made of two words: "wheel" and "barrow." "Barrow" is a derivation of the Old English "barew" which was a device used for... | Technology | Agricultural tools | null |
252740 | https://en.wikipedia.org/wiki/Long-tailed%20duck | Long-tailed duck | The long-tailed duck (Clangula hyemalis) or coween, formerly known as the oldsquaw, is a medium-sized sea duck that breeds in the tundra and taiga regions of the arctic and winters along the northern coastlines of the Atlantic and Pacific Oceans. It is the only member of the genus Clangula.
Taxonomy
The long-tailed du... | Biology and health sciences | Anseriformes | Animals |
23589344 | https://en.wikipedia.org/wiki/Agricultural%20pollution | Agricultural pollution | Agricultural pollution refers to biotic and abiotic byproducts of farming practices that result in contamination or degradation of the environment and surrounding ecosystems, and/or cause injury to humans and their economic interests. The pollution may come from a variety of sources, ranging from point source water pol... | Technology | Agriculture and ecology | null |
6163834 | https://en.wikipedia.org/wiki/Juniperus%20phoenicea | Juniperus phoenicea | Juniperus phoenicea, the Phoenicean juniper or Arâr, is a juniper found throughout the Mediterranean region.
Description
Juniperus phoenicea is a large evergreen shrub or small tree reaching tall, with a trunk up to in diameter and a rounded or irregular crown. The bark, which can be peeled in strips, is dark grayis... | Biology and health sciences | Cupressaceae | Plants |
6166502 | https://en.wikipedia.org/wiki/Common%20death%20adder | Common death adder | The common death adder (Acanthophis antarcticus) is a species of death adder native to Australia. It is one of the most venomous land snakes in Australia and globally. While it remains widespread (unlike related species), it is facing increased threat from the ongoing Australian cane toad invasion.
Taxonomy
The common... | Biology and health sciences | Snakes | Animals |
18514764 | https://en.wikipedia.org/wiki/Stick%20mantis | Stick mantis | Stick mantis and twig mantis are common names applied to numerous species of mantis that mimic sticks or twigs as camouflage. Often the name serves to identify entire genera such as is the case with:
Brunneria (including Brunner's stick mantis, the Brazilian stick mantis and the small-winged stick mantis)
Hoplocorypha... | Biology and health sciences | Insects: General | Animals |
4713880 | https://en.wikipedia.org/wiki/Solar%20telescope | Solar telescope | A solar telescope or a solar observatory is a special-purpose telescope used to observe the Sun. Solar telescopes usually detect light with wavelengths in, or not far outside, the visible spectrum. Obsolete names for Sun telescopes include heliograph and photoheliograph.
Professional solar telescopes
Solar telescopes... | Technology | Telescope | null |
4715070 | https://en.wikipedia.org/wiki/Soil%20chemistry | Soil chemistry | Soil chemistry is the study of the chemical characteristics of soil. Soil chemistry is affected by mineral composition, organic matter and environmental factors. In the early 1870s a consulting chemist to the Royal Agricultural Society in England, named J. Thomas Way, performed many experiments on how soils exchange io... | Physical sciences | Soil science | Earth science |
4715998 | https://en.wikipedia.org/wiki/Competition%20%28biology%29 | Competition (biology) | Competition is an interaction between organisms or species in which both require one or more resources that are in limited supply (such as food, water, or territory). Competition lowers the fitness of both organisms involved since the presence of one of the organisms always reduces the amount of the resource available ... | Biology and health sciences | Ecology | null |
2554507 | https://en.wikipedia.org/wiki/Scalding | Scalding | Scalding is a form of thermal burn resulting from heated fluids such as boiling water or steam. Most scalds are considered first- or second-degree burns, but third-degree burns can result, especially with prolonged contact. The term is from the Latin word calidus, meaning hot.
Causes
Most scalds result from exposure t... | Biology and health sciences | Types | Health |
2554979 | https://en.wikipedia.org/wiki/Geothermal%20gradient | Geothermal gradient | Geothermal gradient is the rate of change in temperature with respect to increasing depth in Earth's interior. As a general rule, the crust temperature rises with depth due to the heat flow from the much hotter mantle; away from tectonic plate boundaries, temperature rises in about 25–30 °C/km (72–87 °F/mi) of depth ne... | Physical sciences | Geophysics | Earth science |
2555865 | https://en.wikipedia.org/wiki/Aura%20%28symptom%29 | Aura (symptom) | An aura is a perceptual disturbance experienced by some with epilepsy or migraine. An epileptic aura is actually a minor seizure.
Epileptic and migraine auras are due to the involvement of specific areas of the brain, which are those that determine the symptoms of the aura. Therefore, if the visual area is affected, t... | Biology and health sciences | Symptoms and signs | Health |
2556665 | https://en.wikipedia.org/wiki/Hominini | Hominini | The Hominini (hominins) form a taxonomic tribe of the subfamily Homininae (hominines). They comprise two extant genera: Homo (humans) and Pan (chimpanzees and bonobos), and in standard usage exclude the genus Gorilla (gorillas), which is grouped separately within the subfamily Homininae.
The term Hominini was origina... | Biology and health sciences | Human evolution: General | Biology |
2557067 | https://en.wikipedia.org/wiki/Stingless%20bee | Stingless bee | Stingless bees (SB), sometimes called stingless honey bees or simply meliponines, are a large group of bees (from about 462 to 552 described species), comprising the tribe Meliponini (or subtribe Meliponina according to other authors). They belong in the family Apidae (subfamily Apinae), and are closely related to comm... | Biology and health sciences | Hymenoptera | Animals |
2559987 | https://en.wikipedia.org/wiki/Penaeus%20monodon | Penaeus monodon | Penaeus monodon, commonly known as the giant tiger prawn, Asian tiger shrimp, black tiger shrimp, and other names, is a marine crustacean that is widely reared for food.
Taxonomy
Penaeus monodon was first described by Johan Christian Fabricius in 1798. That name was overlooked until 1949, when Lipke Holthuis clarified... | Biology and health sciences | Shrimps and prawns | Animals |
1843447 | https://en.wikipedia.org/wiki/Crank%E2%80%93Nicolson%20method | Crank–Nicolson method | In numerical analysis, the Crank–Nicolson method is a finite difference method used for numerically solving the heat equation and similar partial differential equations. It is a second-order method in time. It is implicit in time, can be written as an implicit Runge–Kutta method, and it is numerically stable. The metho... | Mathematics | Differential equations | null |
1846025 | https://en.wikipedia.org/wiki/Schmidt%E2%80%93Cassegrain%20telescope | Schmidt–Cassegrain telescope | The Schmidt–Cassegrain is a catadioptric telescope that combines a Cassegrain reflector's optical path with a Schmidt corrector plate to make a compact astronomical instrument that uses simple spherical surfaces.
Invention and design
The American astronomer and lens designer James Gilbert Baker first proposed a Casse... | Technology | Telescope | null |
20745984 | https://en.wikipedia.org/wiki/Lecanorales | Lecanorales | The Lecanorales are an order of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The order contains 26 families, 269 genera, and 5695 species.
Families
Suborder Lecanorineae
Biatorellaceae M. Choisy ex Hafellner & Casares-Porcel, 1992
Brigantiaeaceae Hafellner & Bellem... | Biology and health sciences | Lichens | Plants |
23592304 | https://en.wikipedia.org/wiki/16-bit%20computing | 16-bit computing | 16-bit microcomputers are microcomputers that use 16-bit microprocessors.
A 16-bit register can store 216 different values. The range of integer values that can be stored in 16 bits depends on the integer representation used. With the two most common representations, the range is 0 through 65,535 (216 − 1) for represe... | Technology | Computer architecture concepts | null |
10507997 | https://en.wikipedia.org/wiki/Berkshire%20pig | Berkshire pig | The Berkshire is a British breed of pig. It originated in the English county of Berkshire, for which it is named. It is normally black, with some white on the snout, on the lower legs, and on the tip of the tail.
It is a rare breed in the United Kingdom. It has been exported to a number of countries including Australi... | Biology and health sciences | Pigs | Animals |
10511615 | https://en.wikipedia.org/wiki/Gossypium%20arboreum | Gossypium arboreum | Gossypium arboreum, commonly called tree cotton, is a species of cotton native to Indian subcontinent and other tropical and subtropical regions of the Old World. There is evidence of its cultivation as long ago as the Indus Valley Civilisation of the Indus River for the production of cotton textiles. The shrub was in... | Biology and health sciences | Malvales | Plants |
12784278 | https://en.wikipedia.org/wiki/North%20African%20elephant | North African elephant | The North African elephant (Loxodonta africana pharaohensis) is an extinct subspecies of the African bush elephant (Loxodonta africana), or possibly a separate elephant species, that existed in North Africa, north of the Sahara, until it died out in Roman times. These were the famous war elephants used by Carthage in t... | Biology and health sciences | Proboscidea | Animals |
3506480 | https://en.wikipedia.org/wiki/Foliation%20%28geology%29 | Foliation (geology) | Foliation in geology refers to repetitive layering in metamorphic rocks. Each layer can be as thin as a sheet of paper, or over a meter in thickness. The word comes from the Latin , meaning "leaf", and refers to the sheet-like planar structure. It is caused by shearing forces (pressures pushing different sections of th... | Physical sciences | Structural geology | Earth science |
3507365 | https://en.wikipedia.org/wiki/Solar%20panel | Solar panel | A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light. These electrons flow through a circuit and produce direct current (DC) electricity, which can be used to power various devices or be st... | Technology | Power generation | null |
3508478 | https://en.wikipedia.org/wiki/Polyester | Polyester | Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in plants and insects, as well as synthetics s... | Physical sciences | Carbon–oxygen bond | null |
3510370 | https://en.wikipedia.org/wiki/Dissociative%20amnesia | Dissociative amnesia | Dissociative amnesia or psychogenic amnesia is a dissociative disorder "characterized by retrospectively reported memory gaps. These gaps involve an inability to recall personal information, usually of a traumatic or stressful nature." The concept is scientifically controversial and remains disputed.
Dissociative amne... | Biology and health sciences | Mental disorders | Health |
117534 | https://en.wikipedia.org/wiki/Optical%20microscope | Optical microscope | The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th cen... | Technology | Optical instruments | null |
22210655 | https://en.wikipedia.org/wiki/Aquatic%20locomotion | Aquatic locomotion | Aquatic locomotion or swimming is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish, molluscs, amphibians, reptiles, birds, and mammals.
Evolution of swim... | Biology and health sciences | Ethology | Biology |
19541428 | https://en.wikipedia.org/wiki/Barley | Barley | Barley (), a member of the grass family, is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains; it was domesticated in the Fertile Crescent around 9000 BC, giving it nonshattering spikelets and making it much easier to harvest. Its use then spread throughout Eurasia by ... | Biology and health sciences | Poales | null |
19541494 | https://en.wikipedia.org/wiki/Cloud%20computing | Cloud computing | Cloud computing is "a paradigm for enabling network access to a scalable and elastic pool of shareable physical or virtual resources with self-service provisioning and administration on-demand," according to ISO.
Essential Characteristics
In 2011, the National Institute of Standards and Technology (NIST) identified fi... | Technology | Computer architecture concepts | null |
19554533 | https://en.wikipedia.org/wiki/Homo%20erectus | Homo erectus | Homo erectus ( ) is an extinct species of archaic human from the Pleistocene, spanning nearly 2 million years. It is the first human species to evolve a humanlike body plan and gait, to leave Africa and colonize Asia and Europe, and to wield fire. H. erectus is the ancestor of later Homo species, including H. heidelber... | Biology and health sciences | Evolution | null |
19555586 | https://en.wikipedia.org/wiki/Classical%20mechanics | Classical mechanics | Classical mechanics is a physical theory describing the motion of objects such as projectiles, parts of machinery, spacecraft, planets, stars, and galaxies. The development of classical mechanics involved substantial change in the methods and philosophy of physics. The qualifier classical distinguishes this type of mec... | Physical sciences | Physics | null |
459018 | https://en.wikipedia.org/wiki/Pointer%20%28computer%20programming%29 | Pointer (computer programming) | In computer science, a pointer is an object in many programming languages that stores a memory address. This can be that of another value located in computer memory, or in some cases, that of memory-mapped computer hardware. A pointer references a location in memory, and obtaining the value stored at that location is k... | Technology | Software development: General | null |
459163 | https://en.wikipedia.org/wiki/Siphon | Siphon | A siphon (; also spelled syphon) is any of a wide variety of devices that involve the flow of liquids through tubes. In a narrower sense, the word refers particularly to a tube in an inverted "U" shape, which causes a liquid to flow upward, above the surface of a reservoir, with no pump, but powered by the fall of the ... | Technology | Basics_8 | null |
459402 | https://en.wikipedia.org/wiki/Pinus%20lambertiana | Pinus lambertiana | Pinus lambertiana (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree and has the longest cones of any conifer. It is native to coastal and inland mountain areas along the Pacific coast of North America, as far north as Oregon and as far south as Baja California in Mexico.
D... | Biology and health sciences | Pinaceae | Plants |
459758 | https://en.wikipedia.org/wiki/Neuroptera | Neuroptera | The insect order Neuroptera, or net-winged insects, includes the lacewings, mantidflies, antlions, and their relatives. The order consists of some 6,000 species. Neuroptera is grouped together with the Megaloptera (alderflies, fishflies, and dobsonflies) and Raphidioptera (snakeflies) in the unranked taxon Neuropterida... | Biology and health sciences | Insects: General | Animals |
460235 | https://en.wikipedia.org/wiki/Resultant%20force | Resultant force | In physics and engineering, a resultant force is the single force and associated torque obtained by combining a system of forces and torques acting on a rigid body via vector addition. The defining feature of a resultant force, or resultant force-torque, is that it has the same effect on the rigid body as the original ... | Physical sciences | Classical mechanics | Physics |
460322 | https://en.wikipedia.org/wiki/Nuclear%20reaction | Nuclear reaction | In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle, collide to produce one or more new nuclides. Thus, a nuclear reaction must cause a transformation of at least one nuclide to another. If a nucleus interacts with another nucleu... | Physical sciences | Nuclear physics | Physics |
460617 | https://en.wikipedia.org/wiki/Hornwort | Hornwort | Hornworts are a group of non-vascular Embryophytes (land plants) constituting the division Anthocerotophyta (). The common name refers to the elongated horn-like structure, which is the sporophyte. As in mosses and liverworts, hornworts have a gametophyte-dominant life cycle, in which cells of the plant carry only a si... | Biology and health sciences | Bryophytes | null |
460791 | https://en.wikipedia.org/wiki/Prowfish | Prowfish | The prowfish (Zaprora silenus) is a species of scorpaeniform marine fish found in the northern Pacific Ocean. It is the only extant member of the family, Zaproridae. There are 2 extinct species only known with fossil records, Zaprora koreana from the Middle Miocene aged Duho Formation in Pohang, South Korea. Another ge... | Biology and health sciences | Acanthomorpha | Animals |
461082 | https://en.wikipedia.org/wiki/Heath | Heath | A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and is characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler and damper climate.
Heaths are widespread worldwide but are fast disappearing... | Physical sciences | Biomes: General | Earth science |
461263 | https://en.wikipedia.org/wiki/Mammutidae | Mammutidae | Mammutidae is an extinct family of proboscideans belonging to Elephantimorpha. It is best known for the mastodons (genus Mammut), which inhabited North America from the Late Miocene (around 8 million years ago) until their extinction at the beginning of the Holocene, around 11,000 years ago. The earliest fossils of the... | Biology and health sciences | Proboscidea | Animals |
461407 | https://en.wikipedia.org/wiki/Longleaf%20pine | Longleaf pine | The longleaf pine (Pinus palustris) is a pine species native to the Southeastern United States, found along the coastal plain from East Texas to southern Virginia, extending into northern and central Florida. In this area it is also known as "yellow pine" or "long leaf yellow pine", although it is properly just one out... | Biology and health sciences | Pinaceae | Plants |
461454 | https://en.wikipedia.org/wiki/Conservative%20vector%20field | Conservative vector field | In vector calculus, a conservative vector field is a vector field that is the gradient of some function. A conservative vector field has the property that its line integral is path independent; the choice of path between two points does not change the value of the line integral. Path independence of the line integral i... | Mathematics | Multivariable and vector calculus | null |
461477 | https://en.wikipedia.org/wiki/Incompressible%20flow | Incompressible flow | In fluid mechanics, or more generally continuum mechanics, incompressible flow (isochoric flow) refers to a flow in which the material density of each fluid parcel — an infinitesimal volume that moves with the flow velocity — is time-invariant. An equivalent statement that implies incompressible flow is that the diver... | Physical sciences | Fluid mechanics | Physics |
461493 | https://en.wikipedia.org/wiki/Howler%20monkey | Howler monkey | Howler monkeys (genus Alouatta, monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropics and are among the largest of the platyrrhines along with the muriquis (Brachyteles), the spider monkeys (Ateles) and woolly monkeys (Lagotrix). The monkeys are native to South and Central American... | Biology and health sciences | New World monkeys | Animals |
461654 | https://en.wikipedia.org/wiki/Scalar%20potential | Scalar potential | In mathematical physics, scalar potential describes the situation where the difference in the potential energies of an object in two different positions depends only on the positions, not upon the path taken by the object in traveling from one position to the other. It is a scalar field in three-space: a directionles... | Physical sciences | Classical mechanics | Physics |
15627440 | https://en.wikipedia.org/wiki/Phragmites%20australis | Phragmites australis | Phragmites australis, known as the common reed, is a species of flowering plant in the grass family Poaceae. It is a wetland grass that can grow up to tall and has a cosmopolitan distribution worldwide.
Description
Phragmites australis commonly forms extensive stands (known as reed beds), which may be as much as or ... | Biology and health sciences | Poales | Plants |
6171868 | https://en.wikipedia.org/wiki/Regurgitation%20%28digestion%29 | Regurgitation (digestion) | Regurgitation is the expulsion of material from the pharynx, or esophagus, usually characterized by the presence of undigested food or blood.
Regurgitation is used by a number of species to feed their young. This is typically in circumstances where the young are at a fixed location and a parent must forage or hunt for... | Biology and health sciences | Basics | Biology |
1231425 | https://en.wikipedia.org/wiki/Talwar | Talwar | The talwar (), also spelled talwaar and tulwar, is a type of curved sword or sabre from the Indian subcontinent.
Etymology and classification
The word talwar originated from the Sanskrit word taravāri () which means "one-edged sword". It is the word for sword in several related languages, such as Hindustani (Hindi and... | Technology | Swords | null |
1231733 | https://en.wikipedia.org/wiki/Airglow | Airglow | Airglow (also called nightglow) is a faint emission of light by a planetary atmosphere. In the case of Earth's atmosphere, this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight and diffused sunlight from the far side are removed. This phenomenon originates with se... | Physical sciences | Basics | Astronomy |
1231792 | https://en.wikipedia.org/wiki/Hornfels | Hornfels | Hornfels is the group name for a set of contact metamorphic rocks that have been baked and hardened by the heat of intrusive igneous masses and have been rendered massive, hard, splintery, and in some cases exceedingly tough and durable. These properties are caused by fine grained non-aligned crystals with platy or pri... | Physical sciences | Metamorphic rocks | Earth science |
1231797 | https://en.wikipedia.org/wiki/Extinction%20%28astronomy%29 | Extinction (astronomy) | In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer. Interstellar extinction was first documented as such in 1930 by Robert Julius Trumpler. However, its effects had been noted in 1847 by Friedrich Georg Wilhelm ... | Physical sciences | Observational astronomy | null |
1232575 | https://en.wikipedia.org/wiki/Suicide%20methods | Suicide methods | A suicide method is any means by which a person may choose to end their life. Suicide attempts do not always result in death, and a non-fatal suicide attempt can leave the person with serious physical injuries, long-term health problems, or brain damage.
Worldwide, three suicide methods predominate, with the pattern v... | Biology and health sciences | Mental disorders | Health |
1232763 | https://en.wikipedia.org/wiki/Crab%20Pulsar | Crab Pulsar | The Crab Pulsar (PSR B0531+21 or Baade's Star) is a relatively young neutron star. The star is the central star in the Crab Nebula, a remnant of the supernova SN 1054, which was widely observed on Earth in the year 1054. Discovered in 1968, the pulsar was the first to be connected with a supernova remnant.
The Crab Pu... | Physical sciences | Notable stars | Astronomy |
2560500 | https://en.wikipedia.org/wiki/Ground%20hornbill | Ground hornbill | The ground hornbills (Bucorvidae) are a family of the order Bucerotiformes, with a single genus Bucorvus and two extant species. The family is endemic to sub-Saharan Africa: the Abyssinian ground hornbill occurs in a belt from Senegal east to Ethiopia, and the southern ground hornbill occurs in southern and East Africa... | Biology and health sciences | Coraciiformes | Animals |
2560733 | https://en.wikipedia.org/wiki/Black%20swallower | Black swallower | The black swallower (Chiasmodon niger) is a species of deep sea fish in the family Chiasmodontidae. It is known for its ability to swallow fish larger than itself.
It has a worldwide distribution in tropical and subtropical waters, in the mesopelagic and bathypelagic zones at a depth of . It is a very common and wides... | Biology and health sciences | Acanthomorpha | Animals |
2561756 | https://en.wikipedia.org/wiki/Ji%20%28polearm%29 | Ji (polearm) | The ji (pronunciation: , English approximation: , ) was a Chinese polearm, sometimes translated into English as spear or halberd, though they are conceptually different weapons. They were used in one form or another for over 3000 years, from at least as early as the Zhou dynasty, until the end of the Qing dynasty. The... | Technology | Polearms | null |
2562358 | https://en.wikipedia.org/wiki/Spontaneous%20magnetization | Spontaneous magnetization | Spontaneous magnetization is the appearance of an ordered spin state (magnetization) at zero applied magnetic field in a ferromagnetic or ferrimagnetic material below a critical point called the Curie temperature or .
Overview
Heated to temperatures above , ferromagnetic materials become paramagnetic and their magneti... | Physical sciences | Magnetostatics | Physics |
2562582 | https://en.wikipedia.org/wiki/El%20Ferdan%20Railway%20Bridge | El Ferdan Railway Bridge | The El Ferdan Railway Bridge is a swing bridge that spans the western shipping lane of the Suez Canal near Ismailia, Egypt. It is the longest swing bridge in the world, with a span of .
The bridge was not functional for a while due to the expansion of the Suez Canal completed in 2015 which added a parallel shipping la... | Technology | Bridges | null |
2564375 | https://en.wikipedia.org/wiki/Shifter%20%28bicycle%20part%29 | Shifter (bicycle part) | A bicycle shifter or gear control or gear levers is a component used to control the gearing mechanisms and select the desired gear ratio. Typically, they operate either a derailleur mechanism or an internal hub gear mechanism. In either case, the control is operated by moving a cable that connects the shifter to the ge... | Technology | Human-powered transport | null |
2565475 | https://en.wikipedia.org/wiki/Seedling | Seedling | A seedling is a young sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons (seed leaves). The two classes of flowering pl... | Biology and health sciences | Plant anatomy and morphology: General | Biology |
768402 | https://en.wikipedia.org/wiki/Rhynchocephalia | Rhynchocephalia | Rhynchocephalia (; ) is an order of lizard-like reptiles that includes only one living species, the tuatara (Sphenodon punctatus) of New Zealand. Despite its current lack of diversity, during the Mesozoic rhynchocephalians were a speciose group with high morphological and ecological diversity. The oldest record of the ... | Biology and health sciences | Rhynchocephalia | Animals |
768413 | https://en.wikipedia.org/wiki/Ear | Ear | In vertebrates, an ear is the organ that enables hearing and (in mammals) body balance using the vestibular system. In humans, the ear is described as having three parts: the outer ear, the middle ear and the inner ear. The outer ear consists of the auricle and the ear canal. Since the outer ear is the only visible po... | Biology and health sciences | Biology | null |
768511 | https://en.wikipedia.org/wiki/Automatic%20firearm | Automatic firearm | An automatic firearm or fully automatic firearm (to avoid confusion with semi-automatic firearms) is a self-loading firearm that continuously chambers and fires rounds when the trigger mechanism is actuated. The action of an automatic firearm is capable of harvesting the excess energy released from a previous discharge... | Technology | Mechanisms_2 | null |
768586 | https://en.wikipedia.org/wiki/Select%20fire | Select fire | Select fire, is the capability of a weapon to be adjusted to fire in semi-automatic, fully automatic, and/or burst mode. The modes are chosen by means of a selector switch, which varies depending on the weapon's design. Some select-fire weapons have burst fire mechanisms to limit the maximum number of shots fired autom... | Technology | Mechanisms_2 | null |
769016 | https://en.wikipedia.org/wiki/Japanese%20garden | Japanese garden | are traditional gardens whose designs are accompanied by Japanese aesthetics and philosophical ideas, avoid artificial ornamentation, and highlight the natural landscape. Plants and worn, aged materials are generally used by Japanese garden designers to suggest a natural landscape, and to express the fragility of exist... | Technology | Buildings and infrastructure | null |
769065 | https://en.wikipedia.org/wiki/Niche%20construction | Niche construction | Niche construction is the ecological process by which an organism alters its own (or another species') local environment. These alterations can be a physical change to the organism’s environment, or it can encompass the active movement of an organism from one habitat to another where it then experiences different envir... | Biology and health sciences | Ecology | Biology |
770768 | https://en.wikipedia.org/wiki/Liquid%20fuel | Liquid fuel | Liquid fuels are combustible or energy-generating molecules that can be harnessed to create mechanical energy, usually producing kinetic energy; they also must take the shape of their container. It is the fumes of liquid fuels that are flammable instead of the fluid.
Most liquid fuels in widespread use are derived from... | Technology | Fuel | null |
771718 | https://en.wikipedia.org/wiki/Bichon | Bichon | A bichon () is a distinct type of toy dog; it is typically kept as a companion dog. Believed to be descended from the Barbet, it is believed the bichon-type dates to at least the 11th century; it was relatively common in 14th-century France, where they were kept as pets of the royalty and aristocracy. From France, thes... | Biology and health sciences | Dogs | Animals |
22228064 | https://en.wikipedia.org/wiki/Parkinson%27s%20disease | Parkinson's disease | Parkinson's disease (PD), or simply Parkinson's, is a neurodegenerative disease primarily of the central nervous system, affecting both motor and non-motor systems. Symptoms typically develop gradually, with non-motor issues becoming more prevalent as the disease progresses. Common motor symptoms include tremors, brady... | Biology and health sciences | Non-infectious disease | null |
4719512 | https://en.wikipedia.org/wiki/Skin%20infection | Skin infection | A skin infection is an infection of the skin in humans and other animals, that can also affect the associated soft tissues such as loose connective tissue and mucous membranes. They comprise a category of infections termed skin and skin structure infections (SSSIs), or skin and soft tissue infections (SSTIs), and acute... | Biology and health sciences | Infectious diseases by site | Health |
4720254 | https://en.wikipedia.org/wiki/Men%27s%20health | Men's health | Men's health is a state of complete physical, mental, and social well-being, as experienced by men, and not merely the absence of disease. Differences in men's health compared to women's can be attributed to biological factors, behavioural factors, and social factors (e.g., occupations).
Men's health often relates to ... | Biology and health sciences | Health and fitness: General | Health |
4720859 | https://en.wikipedia.org/wiki/Acariformes | Acariformes | The Acariformes, also known as the Actinotrichida, are the more diverse of the two superorders of mites. Over 32,000 described species are found in 351 families, with an estimated total of 440,000 to 929,000 species, including undescribed species.
Systematics and taxonomy
The Acariformes can be divided into two main c... | Biology and health sciences | Arachnids | Animals |
4720943 | https://en.wikipedia.org/wiki/Parasitiformes | Parasitiformes | Parasitiformes are a superorder of Arachnids, constituting one of the two major groups of mites, alongside Acariformes. Parasitiformes has, at times, been classified at the rank of order or suborder.
It is uncertain whether Parasitiformes and Acariformes are closely related, and in many analyses they are recovered mor... | Biology and health sciences | Arachnids | Animals |
4723892 | https://en.wikipedia.org/wiki/Stamp%20mill | Stamp mill | A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for extraction of metallic ores. Breaking material down is a type of unit operation.
Description
A stamp mill consists of a set of heavy steel (iron-shod ... | Technology | Metallurgy | null |
4724840 | https://en.wikipedia.org/wiki/Space%20physics | Space physics | Space physics, also known as space plasma physics, is the study of naturally occurring plasmas within Earth's upper atmosphere and the rest of the Solar System. It includes the topics of aeronomy, aurorae, planetary ionospheres and magnetospheres, radiation belts, and space weather (collectively known as solar-terrestr... | Physical sciences | Astronomy basics | Astronomy |
20756869 | https://en.wikipedia.org/wiki/Eusociality | Eusociality | Eusociality (Greek εὖ eu "good" and social) is the highest level of organization of sociality. It is defined by the following characteristics: cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non... | Biology and health sciences | Ethology | Biology |
20756967 | https://en.wikipedia.org/wiki/Cyborg | Cyborg | A cyborg (, a portmanteau of cybernetic and organism) is a being with both organic and biomechatronic body parts. The term was coined in 1960 by Manfred Clynes and Nathan S. Kline. In contrast to biorobots and androids, the term cyborg applies to a living organism that has restored function or enhanced abilities due to... | Technology | Biotechnology | null |
10518546 | https://en.wikipedia.org/wiki/Technology%20life%20cycle | Technology life cycle | The technology life cycle (TLC) describes the commercial gain of a product through the expense of research and development phase, and the financial return during its "vital life". Some technologies, such as steel, paper or cement manufacturing, have a long lifespan (with minor variations in technology incorporated with... | Technology | General | null |
10520679 | https://en.wikipedia.org/wiki/Multithreading%20%28computer%20architecture%29 | Multithreading (computer architecture) | In computer architecture, multithreading is the ability of a central processing unit (CPU) (or a single core in a multi-core processor) to provide multiple threads of execution.
Overview
The multithreading paradigm has become more popular as efforts to further exploit instruction-level parallelism have stalled since t... | Technology | Computer architecture concepts | null |
10520836 | https://en.wikipedia.org/wiki/Hypogeusia | Hypogeusia | Hypogeusia can be defined as the reduced ability to taste things. Due to a lack of stratification, the prevalence of hypogeusia, as well as hyposmia, may not be accurately known. Additionally, reviews do not always make distinctions between ageusia and hypogeusia, often classifying them as the same in certain circumsta... | Biology and health sciences | Symptoms and signs | Health |
8135659 | https://en.wikipedia.org/wiki/Particle%20decay | Particle decay | In particle physics, particle decay is the spontaneous process of one unstable subatomic particle transforming into multiple other particles. The particles created in this process (the final state) must each be less massive than the original, although the total mass of the system must be conserved. A particle is unstab... | Physical sciences | Particle physics: General | Physics |
8137250 | https://en.wikipedia.org/wiki/Multirole%20combat%20aircraft | Multirole combat aircraft | A multirole combat aircraft (MRCA) is a combat aircraft intended to perform different roles in combat. These roles can include air to air combat, air support,
aerial bombing, reconnaissance, electronic warfare, and suppression of air defenses.
Definition
The term "multirole" was originally reserved for aircraft desig... | Technology | Military aviation | null |
8141106 | https://en.wikipedia.org/wiki/Amphioctopus%20marginatus | Amphioctopus marginatus | Amphioctopus marginatus, also known as the coconut octopus and veined octopus, is a medium-sized cephalopod belonging to the genus Amphioctopus. It is found in tropical waters of the western Pacific Ocean. It commonly preys upon shrimp, crabs, and clams, and displays unusual behavior including bipedal and quadrupedal w... | Biology and health sciences | Cephalopods | Animals |
19572217 | https://en.wikipedia.org/wiki/Influenza | Influenza | Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for ab... | Biology and health sciences | Illness and injury | null |
118212 | https://en.wikipedia.org/wiki/Staphylococcus%20aureus | Staphylococcus aureus | Staphylococcus aureus is a gram-positive spherically shaped bacterium, a member of the Bacillota, and is a usual member of the microbiota of the body, frequently found in the upper respiratory tract and on the skin. It is often positive for catalase and nitrate reduction and is a facultative anaerobe, meaning that it c... | Biology and health sciences | Other organisms | null |
118393 | https://en.wikipedia.org/wiki/Vernier%20scale | Vernier scale | A vernier scale ( ), named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation, thereby increasing resolution and reducing measurement uncertainty by using vernier acuity to reduce human estimation error. It ma... | Technology | Measuring instruments | null |
118396 | https://en.wikipedia.org/wiki/Band%20gap | Band gap | In solid-state physics and solid-state chemistry, a band gap, also called a bandgap or energy gap, is an energy range in a solid where no electronic states exist. In graphs of the electronic band structure of solids, the band gap refers to the energy difference (often expressed in electronvolts) between the top of the ... | Physical sciences | Basics_2 | Physics |
118450 | https://en.wikipedia.org/wiki/Innovation | Innovation | Innovation is the practical implementation of ideas that result in the introduction of new goods or services or improvement in offering goods or services. ISO TC 279 in the standard ISO 56000:2020 defines innovation as "a new or changed entity, realizing or redistributing value". Others have different definitions; a co... | Technology | General | null |
118570 | https://en.wikipedia.org/wiki/Magnetar | Magnetar | A magnetar is a type of neutron star with an extremely powerful magnetic field (~109 to 1011 T, ~1013 to 1015 G). The magnetic-field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays.
The existence of magnetars was proposed in 1992 by Robert Duncan and Christopher T... | Physical sciences | Stellar astronomy | Astronomy |
118737 | https://en.wikipedia.org/wiki/Barn | Barn | A barn is an agricultural building usually on farms and used for various purposes. In North America, a barn refers to structures that house livestock, including cattle and horses, as well as equipment and fodder, and often grain. As a result, the term barn is often qualified e.g. tobacco barn, dairy barn, cow house, s... | Technology | Buildings and infrastructure | null |
118767 | https://en.wikipedia.org/wiki/Tower%20block | Tower block | A tower block, high-rise, apartment tower, residential tower, apartment block, block of flats, or office tower is a tall building, as opposed to a low-rise building and is defined differently in terms of height depending on the jurisdiction. It is used as a residential, office building, or other functions including hot... | Technology | Mixed-use buildings | null |
3511290 | https://en.wikipedia.org/wiki/Strike%20and%20dip | Strike and dip | In geology, strike and dip is a measurement convention used to describe the plane orientation or attitude of a planar geologic feature. A feature's strike is the azimuth of an imagined horizontal line across the plane, and its dip is the angle of inclination (or depression angle) measured downward from horizontal. They... | Physical sciences | Structural geology | Earth science |
3512103 | https://en.wikipedia.org/wiki/Theory%20%28mathematical%20logic%29 | Theory (mathematical logic) | In mathematical logic, a theory (also called a formal theory) is a set of sentences in a formal language. In most scenarios a deductive system is first understood from context, after which an element of a deductively closed theory is then called a theorem of the theory. In many deductive systems there is usually a su... | Mathematics | Model theory | null |
3512524 | https://en.wikipedia.org/wiki/Respiratory%20sounds | Respiratory sounds | Respiratory sounds, also known as lung sounds or breath sounds, are the specific sounds generated by the movement of air through the respiratory system. These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral charac... | Biology and health sciences | Diagnostics | Health |
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