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1882227 | https://en.wikipedia.org/wiki/Anabaena | Anabaena | Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants, such as the mosquito fern. They are one of four genera of cyanobacteria that produce neurotoxins, which are harmful to local wildlife, as well... | Biology and health sciences | Gram-negative bacteria | Plants |
1883867 | https://en.wikipedia.org/wiki/Trim%20tab | Trim tab | Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly app... | Technology | Aircraft components | null |
1883900 | https://en.wikipedia.org/wiki/Crab-eating%20fox | Crab-eating fox | The crab-eating fox (Cerdocyon thous), also known as the forest fox, wood fox, bushdog (not to be confused with the bush dog) or maikong, is an extant species of medium-sized canid endemic to the central part of South America since at least the Pleistocene epoch. Like South American foxes, which are in the genus Lycalo... | Biology and health sciences | Canines | Animals |
1884115 | https://en.wikipedia.org/wiki/Gall%20wasp | Gall wasp | Gall wasps, also traditionally called gallflies, are hymenopterans of the family Cynipidae in the wasp superfamily Cynipoidea. Their common name comes from the galls they induce on plants for larval development. About 1,300 species of this generally very small creature () are known worldwide, with about 360 species of ... | Biology and health sciences | Hymenoptera | Animals |
1884746 | https://en.wikipedia.org/wiki/Cortex%20%28botany%29 | Cortex (botany) | In botany, a cortex is an outer layer of a stem or root in a vascular plant, lying below the epidermis but outside of the vascular bundles. The cortex is composed mostly of large thin-walled parenchyma cells of the ground tissue system and shows little to no structural differentiation. The outer cortical cells often ac... | Biology and health sciences | Plant stem | Biology |
1885646 | https://en.wikipedia.org/wiki/Bennettitales | Bennettitales | Bennettitales (also known as cycadeoids) is an extinct order of seed plants that first appeared in the Permian period and became extinct in most areas toward the end of the Cretaceous. Bennettitales were amongst the most common seed plants of the Mesozoic, and had morphologies including shrub and cycad-like forms. The ... | Biology and health sciences | Gymnosperms (except conifers) | Plants |
1886159 | https://en.wikipedia.org/wiki/Microwave%20spectroscopy | Microwave spectroscopy | Microwave spectroscopy is the spectroscopy method that employs microwaves, i.e. electromagnetic radiation at GHz frequencies, for the study of matter.
History
The ammonia molecule NH3 is shaped like a pyramid 0.38 Å in height, with an equilateral triangle of hydrogens forming the base.The nitrogen situated on the axis... | Physical sciences | Spectroscopy | Chemistry |
19732090 | https://en.wikipedia.org/wiki/Deforestation%20of%20the%20Amazon%20rainforest | Deforestation of the Amazon rainforest | The Amazon rainforest, spanning an area of 3,000,000 km2 (1,200,000 sq mi), is the world's largest rainforest. It encompasses the largest and most biodiverse tropical rainforest on the planet, representing over half of all rainforests. The Amazon region includes the territories of nine nations, with Brazil containing t... | Physical sciences | Climate change | Earth science |
19740545 | https://en.wikipedia.org/wiki/Traffic%20collision | Traffic collision | A traffic collision, also known as a motor vehicle collision, or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or other moving or stationary obstruction, such as a tree, pole or building. Traffic collisions often result in injury, disability, death, and property damage... | Technology | Road transport | null |
23713759 | https://en.wikipedia.org/wiki/Hodgkin%20lymphoma | Hodgkin lymphoma | Hodgkin lymphoma (HL) is a type of lymphoma in which cancer originates from a specific type of white blood cell called lymphocytes, where multinucleated Reed–Sternberg cells (RS cells) are present in the patient's lymph nodes. The condition was named after the English physician Thomas Hodgkin, who first described it in... | Biology and health sciences | Cancer | Health |
6277878 | https://en.wikipedia.org/wiki/Open%20science | Open science | Open science is the movement to make scientific research (including publications, data, physical samples, and software) and its dissemination accessible to all levels of society, amateur or professional. Open science is transparent and accessible knowledge that is shared and developed through collaborative networks. It... | Physical sciences | Science basics | Basics and measurement |
6279588 | https://en.wikipedia.org/wiki/Extranuclear%20inheritance | Extranuclear inheritance | Extranuclear inheritance or cytoplasmic inheritance is the transmission of genes that occur outside the nucleus. It is found in most eukaryotes and is commonly known to occur in cytoplasmic organelles such as mitochondria and chloroplasts or from cellular parasites like viruses or bacteria.
Organelles
Mitochondria a... | Biology and health sciences | Genetics | Biology |
6281041 | https://en.wikipedia.org/wiki/Cat%20flea | Cat flea | The cat flea (scientific name Ctenocephalides felis) is an extremely common parasitic insect whose principal host is the domestic cat, although a high proportion of the fleas found on dogs also belong to this species. This is despite the widespread existence of a separate and well-established "dog" flea, Ctenocephalide... | Biology and health sciences | Insects: General | Animals |
6283381 | https://en.wikipedia.org/wiki/Alcyonacea | Alcyonacea | Alcyonacea are an order of sessile colonial cnidarians that are found throughout the oceans of the world, especially in the deep sea, polar waters, tropics and subtropics. Whilst not in a strict taxonomic sense, Alcyonacea are commonly known as soft corals. The term "soft coral" generally applies to organisms in the tw... | Biology and health sciences | Cnidarians | Animals |
6286608 | https://en.wikipedia.org/wiki/Sequence%20%28geology%29 | Sequence (geology) | In geology, a sequence is a stratigraphic unit which is bounded by an unconformity at the top and at the bottom.
Definition
In a more rigorous and general way, a sequence is defined as a
"relatively conformable [...], genetically related succession of strata bounded by unconformities or their correlative surfaces"
... | Physical sciences | Stratigraphy | Earth science |
477823 | https://en.wikipedia.org/wiki/Gasterosteoidei | Gasterosteoidei | Gasterosteoidei is a suborder of ray-finned fishes that includes the sticklebacks and relatives, the 5th edition of Fishes of the World classifies this suborder within the order Scorpaeniformes.
Systematics
Gasterosteoidei is treated as a suborder within the order Scorpaeniformes in the 5th edition of Fishes of the W... | Biology and health sciences | Acanthomorpha | Animals |
477903 | https://en.wikipedia.org/wiki/Foraminifera | Foraminifera | Foraminifera ( ; Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of Rhizarian protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell (called a "test") of diverse forms and materials. Tests of... | Biology and health sciences | SAR supergroup | Plants |
477917 | https://en.wikipedia.org/wiki/Lemur | Lemur | Lemurs ( ; from Latin ) are wet-nosed primates of the superfamily Lemuroidea ( ), divided into 8 families and consisting of 15 genera and around 100 existing species. They are endemic to the island of Madagascar. Most existing lemurs are small, have a pointed snout, large eyes, and a long tail. They chiefly live in tr... | Biology and health sciences | Primates | null |
478091 | https://en.wikipedia.org/wiki/Von%20Neumann%20architecture | Von Neumann architecture | The von Neumann architecture—also known as the von Neumann model or Princeton architecture—is a computer architecture based on the First Draft of a Report on the EDVAC, written by John von Neumann in 1945, describing designs discussed with John Mauchly and J. Presper Eckert at the University of Pennsylvania's Moore Sch... | Technology | Computer architecture concepts | null |
478195 | https://en.wikipedia.org/wiki/Normal%20mode | Normal mode | A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The free motion described by the normal modes takes place at fixed frequencies. These fixed frequencies of the normal modes of a system are known as it... | Physical sciences | Basics_4 | Physics |
478224 | https://en.wikipedia.org/wiki/Orcus%20%28dwarf%20planet%29 | Orcus (dwarf planet) | Orcus (minor-planet designation: 90482 Orcus) is a dwarf planet located in the Kuiper belt, with one large moon, Vanth. It has an estimated diameter of , comparable to the Inner Solar System dwarf planet Ceres. The surface of Orcus is relatively bright with albedo reaching 23 percent, neutral in color, and rich in wate... | Physical sciences | Solar System | Astronomy |
478313 | https://en.wikipedia.org/wiki/Marker%20pen | Marker pen | A marker pen, fine liner, marking pen, felt-tip pen, felt pen, flow marker, sign pen (in South Korea), vivid (in New Zealand), flomaster (in East and South Slavic countries), texta (in Australia), sketch pen (in South Asia), koki (in South Africa) or simply marker is a pen which has its own ink source and a tip made of... | Technology | Writing tools | null |
478538 | https://en.wikipedia.org/wiki/Particle%20detector | Particle detector | In experimental and applied particle physics, nuclear physics, and nuclear engineering, a particle detector, also known as a radiation detector, is a device used to detect, track, and/or identify ionizing particles, such as those produced by nuclear decay, cosmic radiation, or reactions in a particle accelerator. Detec... | Physical sciences | Particle physics: General | null |
478962 | https://en.wikipedia.org/wiki/Overfishing | Overfishing | Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area. Overfishing can... | Physical sciences | Earth science basics: General | Earth science |
479319 | https://en.wikipedia.org/wiki/Japanese%20macaque | Japanese macaque | The Japanese macaque (Macaca fuscata), also known as the snow monkey, is a terrestrial Old World monkey species that is native to Japan. Colloquially, they are referred to as "snow monkeys" because some live in areas where snow covers the ground for months each year – no other non-human primate lives farther north, nor... | Biology and health sciences | Old World monkeys | Animals |
479373 | https://en.wikipedia.org/wiki/Eraser | Eraser | An eraser (also known as a rubber in some Commonwealth countries, including South Africa from which the material first used got its name) is an article of stationery that is used for removing marks from paper or skin (e.g. parchment or vellum). Erasers have a rubbery consistency and come in a variety of shapes, sizes, ... | Technology | Writing tools | null |
479385 | https://en.wikipedia.org/wiki/Extracellular%20fluid | Extracellular fluid | In cell biology, extracellular fluid (ECF) denotes all body fluid outside the cells of any multicellular organism. Total body water in healthy adults is about 50–60% (range 45 to 75%) of total body weight; women and the obese typically have a lower percentage than lean men. Extracellular fluid makes up about one-third ... | Biology and health sciences | Animal anatomy and morphology | Biology |
479392 | https://en.wikipedia.org/wiki/Myosin | Myosin | Myosins () are a family of motor proteins (though most often protein complexes) best known for their roles in muscle contraction and in a wide range of other motility processes in eukaryotes. They are ATP-dependent and responsible for actin-based motility.
The first myosin (M2) to be discovered was in 1864 by Wilhelm ... | Biology and health sciences | Cell parts | Biology |
479444 | https://en.wikipedia.org/wiki/Arteriole | Arteriole | An arteriole is a small-diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries.
Arterioles have muscular walls (usually only one to two layers of smooth muscle cells) and are the primary site of vascular resistance. The greatest change in blood pressure and ... | Biology and health sciences | Circulatory system | Biology |
479942 | https://en.wikipedia.org/wiki/Asclepias | Asclepias | Asclepias is a genus of herbaceous, perennial, flowering plants known as milkweeds, named for their latex, a milky substance containing cardiac glycosides termed cardenolides, exuded where cells are damaged. Most species are toxic to humans and many other species, primarily due to the presence of cardenolides. However,... | Biology and health sciences | Gentianales | Plants |
480171 | https://en.wikipedia.org/wiki/Common%20myna | Common myna | The common myna or Indian myna (Acridotheres tristis), sometimes spelled mynah, is a bird in the family Sturnidae, native to Asia. An omnivorous open woodland bird with a strong territorial instinct, the common myna has adapted extremely well to urban environments.
The range of the common myna is increasing at such a ... | Biology and health sciences | Passerida | null |
480212 | https://en.wikipedia.org/wiki/Angelshark | Angelshark | Angel sharks are sharks belonging to the genus Squatina. They are the only living members of the family Squatinidae and order Squatiniformes. They commonly inhabit sandy seabeds close to in depth.
Squatina and other Squatiniformes differ from other sharks in having flattened bodies and broad pectoral fins that give ... | Biology and health sciences | Sharks | Animals |
480331 | https://en.wikipedia.org/wiki/Siamang | Siamang | The siamang (, ; Symphalangus syndactylus) is an endangered arboreal, black-furred gibbon native to the forests of Indonesia, Malaysia, and Thailand. The largest of the gibbons, the siamang can be twice the size of other gibbons, reaching in height, and weighing up to . It is the only species in the genus Symphalangu... | Biology and health sciences | Apes | Animals |
480516 | https://en.wikipedia.org/wiki/Aspleniaceae | Aspleniaceae | The Aspleniaceae (spleenworts) are a family of ferns, included in the order Polypodiales. The composition and classification of the family have been subject to considerable changes. In particular, there is a narrow circumscription, Aspleniaceae s.s. (adopted here), in which the family contains only two genera, and a ve... | Biology and health sciences | Ferns | Plants |
480586 | https://en.wikipedia.org/wiki/Tarpan | Tarpan | The tarpan (Equus ferus ferus) was a free-ranging horse population of the Eurasian steppe from the 18th to the 20th century. What qualifies as a tarpan is subject to confusion. It is unknown whether those horses represented genuine wild horses, feral domestic horses or hybrids. The last individual believed to be a tarp... | Biology and health sciences | Equidae | Animals |
480641 | https://en.wikipedia.org/wiki/Glanders | Glanders | Glanders is a contagious zoonotic infectious disease that occurs primarily in horses, mules, and donkeys. It can be contracted by other animals, such as dogs, cats, pigs, goats, and humans. It is caused by infection with the bacterium Burkholderia mallei.
Glanders is endemic in Africa, Asia, the Middle East, and Centr... | Biology and health sciences | Bacterial infections | Health |
4810606 | https://en.wikipedia.org/wiki/Ulmus%20minor | Ulmus minor | Ulmus minor Mill., the field elm, is by far the most polymorphic of the European species, although its taxonomy remains a matter of contention. Its natural range is predominantly south European, extending to Asia Minor and Iran; its northern outposts are the Baltic islands of Öland and Gotland, although it may have bee... | Biology and health sciences | Rosales | Plants |
4814988 | https://en.wikipedia.org/wiki/Najash | Najash | Najash is an extinct genus of basal snake from the Late Cretaceous Candeleros Formation of Patagonia. Like a number of other Cretaceous and living snakes it retained hindlimbs, but Najash is unusual in having well-developed legs that extend outside the rib cage, and a pelvis connected to the spine.
Discovery and descr... | Biology and health sciences | Prehistoric squamates | Animals |
1263998 | https://en.wikipedia.org/wiki/Slow%20loris | Slow loris | Slow lorises are a group of several species of nocturnal strepsirrhine primates that make up the genus Nycticebus. Found in Southeast Asia and nearby areas, they range from Bangladesh and Northeast India in the west to the Sulu Archipelago in the Philippines in the east, and from Yunnan province in China in the north t... | Biology and health sciences | Primates | null |
1264072 | https://en.wikipedia.org/wiki/Capella | Capella | Capella is the brightest star in the northern constellation of Auriga. It has the Bayer designation α Aurigae, which is Latinised to Alpha Aurigae and abbreviated Alpha Aur or α Aur. Capella is the sixth-brightest star in the night sky, and the third-brightest in the northern celestial hemisphere after Arcturus and Veg... | Physical sciences | Notable stars | null |
1264088 | https://en.wikipedia.org/wiki/Hematopoietic%20stem%20cell | Hematopoietic stem cell | Hematopoietic stem cells (HSCs) are the stem cells that give rise to other blood cells. This process is called haematopoiesis. In vertebrates, the first definitive HSCs arise from the ventral endothelial wall of the embryonic aorta within the (midgestational) aorta-gonad-mesonephros region, through a process known as e... | Biology and health sciences | Cell processes | Biology |
1264197 | https://en.wikipedia.org/wiki/Swather | Swather | A swather (North America), or windrower (Australia and rest of world), is a farm implement that cuts hay or small grain crops and forms them into a windrow for drying.
They may be self-propelled with an engine, or drawn by a tractor and power take-off powered. A swather uses a reciprocating sickle bar or rotating d... | Technology | Farm and garden machinery | null |
1264212 | https://en.wikipedia.org/wiki/Elasmosaurus | Elasmosaurus | Elasmosaurus () is a genus of plesiosaur that lived in North America during the Campanian stage of the Late Cretaceous period, about 80.5million years ago. The first specimen was discovered in 1867 near Fort Wallace, Kansas, US, and was sent to the American paleontologist Edward Drinker Cope, who named it E.platyurus i... | Biology and health sciences | Prehistoric marine reptiles | Animals |
1264239 | https://en.wikipedia.org/wiki/Reaction%20coordinate | Reaction coordinate | In chemistry, a reaction coordinate is an abstract one-dimensional coordinate chosen to represent progress along a reaction pathway. Where possible it is usually a geometric parameter that changes during the conversion of one or more molecular entities, such as bond length or bond angle. For example, in the homolytic ... | Physical sciences | Kinetics | Chemistry |
1264353 | https://en.wikipedia.org/wiki/Tantalite | Tantalite | The mineral group tantalite [(Fe, Mn)Ta2O6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal. It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides. Howeve... | Physical sciences | Minerals | Earth science |
1264869 | https://en.wikipedia.org/wiki/Albendazole | Albendazole | Albendazole is a broad-spectrum antihelmintic and antiprotozoal agent of the benzimidazole type. It is used for the treatment of a variety of intestinal parasite infections, including ascariasis, pinworm infection, hookworm infection, trichuriasis, strongyloidiasis, taeniasis, clonorchiasis, opisthorchiasis, cutaneous ... | Biology and health sciences | Antiparasitic | Health |
1265218 | https://en.wikipedia.org/wiki/Podzol | Podzol | In soil science, podzols, also known as podosols, spodosols, or espodossolos, are the typical soils of coniferous or boreal forests and also the typical soils of eucalypt forests and heathlands in southern Australia. In Western Europe, podzols develop on heathland, which is often a construct of human interference throu... | Physical sciences | Soil science | Earth science |
1266589 | https://en.wikipedia.org/wiki/Point%20particle | Point particle | A point particle, ideal particle or point-like particle (often spelled pointlike particle) is an idealization of particles heavily used in physics. Its defining feature is that it lacks spatial extension; being dimensionless, it does not take up space. A point particle is an appropriate representation of any object whe... | Physical sciences | Basics_4 | Physics |
1266658 | https://en.wikipedia.org/wiki/Crystallization | Crystallization | Crystallization is the process by which solids form, where the atoms or molecules are highly organized into a structure known as a crystal. Some ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on f... | Physical sciences | Crystallography | null |
1266901 | https://en.wikipedia.org/wiki/Salmeterol | Salmeterol | Salmeterol is a long-acting β2 adrenergic receptor agonist (LABA) used in the maintenance and prevention of asthma symptoms and maintenance of chronic obstructive pulmonary disease (COPD) symptoms. Symptoms of bronchospasm include shortness of breath, wheezing, coughing and chest tightness. It is also used to prevent b... | Biology and health sciences | Specific drugs | Health |
1266982 | https://en.wikipedia.org/wiki/Ranitidine | Ranitidine | {{Infobox drug
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 458460406
| image = Ranitidine.svg
| image_class = skin-invert-image
| width = 250
| alt =
| image2 = File:Ranitidine-A-3D-balls.png
| alt2 =
| JAN = ranitidine hydrochloride
| pronounce =
| tradename = Zantac, others
| Drugs.com ... | Biology and health sciences | Antihistamines | Health |
22387642 | https://en.wikipedia.org/wiki/Common%20envelope | Common envelope | In astronomy, a common envelope (CE) is gas that contains a binary star system. The gas does not rotate at the same rate as the embedded binary system. A system with such a configuration is said to be in a common envelope phase or undergoing common envelope evolution.
During a common envelope phase the embedded binary... | Physical sciences | Stellar astronomy | Astronomy |
20888255 | https://en.wikipedia.org/wiki/Isopropyl%20alcohol | Isopropyl alcohol | Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable, organic compound with a pungent alcoholic odor.
Isopropyl alcohol, an organic polar molecule, is miscible in water, ethanol, and chloroform, demonstrating its ability to dissolve a wide range of substances i... | Physical sciences | Alcohols | Chemistry |
2619735 | https://en.wikipedia.org/wiki/Flow%20%28mathematics%29 | Flow (mathematics) | In mathematics, a flow formalizes the idea of the motion of particles in a fluid. Flows are ubiquitous in science, including engineering and physics. The notion of flow is basic to the study of ordinary differential equations. Informally, a flow may be viewed as a continuous motion of points over time. More formally, ... | Mathematics | Dynamical systems | null |
25219833 | https://en.wikipedia.org/wiki/Shared%20transport | Shared transport | Shared transport or shared mobility is a transportation system where travelers share a vehicle either simultaneously as a group (e.g. ride-sharing) or over time (e.g. carsharing or bike sharing) as personal rental, and in the process share the cost of the journey. It is a transportation strategy that allows users to a... | Technology | Motorized road transport | null |
6292760 | https://en.wikipedia.org/wiki/Bed%20%28geology%29 | Bed (geology) | In geology, a bed is a layer of sediment, sedimentary rock, or volcanic rock "bounded above and below by more or less well-defined bedding surfaces".
A bedding surface is three-dimensional surface, planar or curved, that visibly separates each successive bed (of the same or different lithology) from the preceding or ... | Physical sciences | Sedimentology | Earth science |
6294249 | https://en.wikipedia.org/wiki/Type-I%20superconductor | Type-I superconductor | The interior of a bulk superconductor cannot be penetrated by a weak magnetic field, a phenomenon known as the Meissner effect. When the applied magnetic field becomes too large, superconductivity breaks down. Superconductors can be divided into two types according to how this breakdown occurs. In type-I superconductor... | Physical sciences | Electrical circuits | Physics |
802913 | https://en.wikipedia.org/wiki/Semiconductor%20detector | Semiconductor detector | A semiconductor detector in ionizing radiation detection physics is a device that uses a semiconductor (usually silicon or germanium) to measure the effect of incident charged particles or photons.
Semiconductor detectors find broad application for radiation protection, gamma and X-ray spectrometry, and as particle de... | Physical sciences | Devices | Physics |
803808 | https://en.wikipedia.org/wiki/Irish%20elk | Irish elk | The Irish elk (Megaloceros giganteus), also called the giant deer or Irish deer, is an extinct species of deer in the genus Megaloceros and is one of the largest deer that ever lived. Its range extended across Eurasia during the Pleistocene, from Ireland (where it is known from abundant remains found in bogs) to Lake B... | Biology and health sciences | Deer | Animals |
804032 | https://en.wikipedia.org/wiki/Monster%20truck | Monster truck | A monster truck is a specialized off-road vehicle with a heavy duty suspension, four-wheel steering, large-displacement V8 engines and oversized tires constructed for competition and entertainment uses. Originally created by modifying stock pickup trucks and sport utility vehicles (SUVs), they have evolved into purpose... | Technology | Motorized road transport | null |
808767 | https://en.wikipedia.org/wiki/Vacuum%20distillation | Vacuum distillation | Vacuum distillation or distillation under reduced pressure is a type of distillation performed under reduced pressure, which allows the purification of compounds not readily distilled at ambient pressures or simply to save time or energy. This technique separates compounds based on differences in their boiling points.... | Physical sciences | Phase separations | Chemistry |
809005 | https://en.wikipedia.org/wiki/Balloon%20%28aeronautics%29 | Balloon (aeronautics) | In aeronautics, a balloon is an unpowered aerostat, which remains aloft or floats due to its buoyancy. A balloon may be free, moving with the wind, or tethered to a fixed point. It is distinct from an airship, which is a powered aerostat that can propel itself through the air in a controlled manner.
Many balloons have... | Technology | Aviation | null |
1886340 | https://en.wikipedia.org/wiki/Mixer%20%28appliance%29 | Mixer (appliance) | A mixer (also called a hand mixer or stand mixer depending on the type) is a kitchen device that uses a gear-driven mechanism to rotate a set of "beaters" in a bowl containing the food or liquids to be prepared by mixing them.
Mixers help automate the repetitive tasks of stirring, whisking or beating. When the beaters... | Technology | Household appliances | null |
1886820 | https://en.wikipedia.org/wiki/Electronic%20component | Electronic component | An electronic component is any basic discrete electronic device or physical entity part of an electronic system used to affect electrons or their associated fields. Electronic components are mostly industrial products, available in a singular form and are not to be confused with electrical elements, which are conceptua... | Technology | Components | null |
1886997 | https://en.wikipedia.org/wiki/Stearyl%20alcohol | Stearyl alcohol | Stearyl alcohol, or 1-octadecanol, is an organic compound classified as a saturated fatty alcohol with the formula CH3(CH2)16CH2OH. It takes the form of white granules or flakes, which are insoluble in water. It has a wide range of uses as an ingredient in lubricants, resins, perfumes, and cosmetics. It is used as an e... | Physical sciences | Alcohols | Chemistry |
1887046 | https://en.wikipedia.org/wiki/Coreidae | Coreidae | Coreidae is a large family of predominantly sap-sucking insects in the Hemipteran suborder Heteroptera. The name "Coreidae" derives from the genus Coreus, which derives from the Ancient Greek () meaning bedbug.
As a family, the Coreidae are cosmopolitan, but most of the species are tropical or subtropical.
Common n... | Biology and health sciences | Hemiptera (true bugs) | Animals |
1887197 | https://en.wikipedia.org/wiki/Pelican%20eel | Pelican eel | The pelican eel (Eurypharynx pelecanoides) is a deep-sea eel. It is the only known member of the genus Eurypharynx and the family Eurypharyngidae. It belongs to the "saccopharyngiforms", members of which were historically placed in their own order, but are now considered true eels in the order Anguilliformes. The pelic... | Biology and health sciences | Anguilliformes | Animals |
1888553 | https://en.wikipedia.org/wiki/Eastern%20newt | Eastern newt | Eastern newts are 2-4'inch long in length. These animals are common aquarium pets, being either collected from the wild or sold commercially. The striking bright orange juvenile stage, which is land-dwelling, is known as a red eft. Some sources blend the general name of the species and that of the red-spotted newt sub... | Biology and health sciences | Salamanders and newts | Animals |
1888817 | https://en.wikipedia.org/wiki/Central%20force | Central force | In classical mechanics, a central force on an object is a force that is directed towards or away from a point called center of force.
where is the force, F is a vector valued force function, F is a scalar valued force function, r is the position vector, ||r|| is its length, and is the corresponding unit vector.
Not... | Physical sciences | Classical mechanics | Physics |
267008 | https://en.wikipedia.org/wiki/MTR | MTR | The Mass Transit Railway (MTR) is a major public transport network serving Hong Kong. Operated by the MTR Corporation (MTRCL), it consists of heavy rail, light rail, and feeder bus services, centred around a 10-line rapid transit network, serving the urbanised areas of Hong Kong Island, Kowloon, and the New Territories... | Technology | China | null |
267247 | https://en.wikipedia.org/wiki/River%20dolphin | River dolphin | River dolphins are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or brackish water. They are an informal grouping of dolphins, which itself is a paraphyletic group within the infraorder Cetacea. Extant river dolphins are placed in two superfamilies, Platanistoidea and Inioidea. The... | Biology and health sciences | Toothed whale | Animals |
267362 | https://en.wikipedia.org/wiki/Astronomical%20seeing | Astronomical seeing | In astronomy, seeing is the degradation of the image of an astronomical object due to turbulence in the atmosphere of Earth that may become visible as blurring, twinkling or variable distortion. The origin of this effect is rapidly changing variations of the optical refractive index along the light path from the object... | Physical sciences | Basics | Astronomy |
267370 | https://en.wikipedia.org/wiki/Alligator | Alligator | An alligator, or colloquially gator, is a large reptile in the genus Alligator of the family Alligatoridae of the order Crocodilia. The two extant species are the American alligator (A. mississippiensis) and the Chinese alligator (A. sinensis). Additionally, several extinct species of alligator are known from fossil re... | Biology and health sciences | Reptiles | null |
267376 | https://en.wikipedia.org/wiki/Mauna%20Kea%20Observatories | Mauna Kea Observatories | The Mauna Kea Observatories (MKO) are a group of independent astronomical research facilities and large telescope observatories that are located at the summit of Mauna Kea on the Big Island of Hawaiʻi, United States. The facilities are located in a 525-acre (212 ha) special land use zone known as the "Astronomy Precinc... | Technology | Ground-based observatories | null |
267413 | https://en.wikipedia.org/wiki/P%C3%A8re%20David%27s%20deer | Père David's deer | The Père David's deer (Elaphurus davidianus), also known as the milu () or elaphure, is a species of deer native to the subtropical river valleys of China. It grazes mainly on grass and aquatic plants. It is the only extant member of the genus Elaphurus. Some experts suggest demoting Elaphurus to a subgenus of Cervus. ... | Biology and health sciences | Deer | Animals |
267694 | https://en.wikipedia.org/wiki/Nervous%20tissue | Nervous tissue | Nervous tissue, also called neural tissue, is the main tissue component of the nervous system. The nervous system regulates and controls body functions and activity. It consists of two parts: the central nervous system (CNS) comprising the brain and spinal cord, and the peripheral nervous system (PNS) comprising the br... | Biology and health sciences | Tissues | null |
267933 | https://en.wikipedia.org/wiki/Breed | Breed | A breed is a specific group of breedable domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. In literature, there exist several slightly deviating definitions. Breeds are formed through genetic isola... | Technology | Animal husbandry | null |
267968 | https://en.wikipedia.org/wiki/Tyranni | Tyranni | The Tyranni (suboscines) are a suborder of passerine birds that includes more than 1,000 species, a large majority of which are South American. It is named after the type genus Tyrannus. These have a different anatomy of the syrinx musculature than the oscines (songbirds of the larger suborder Passeri), hence the commo... | Biology and health sciences | Tyranni | Animals |
268115 | https://en.wikipedia.org/wiki/Ocelot | Ocelot | The ocelot (Leopardus pardalis) is a medium-sized spotted wild cat that reaches at the shoulders and weighs between on average. It is native to the southwestern United States, Mexico, Central and South America, and the Caribbean islands of Trinidad and Margarita. Carl Linnaeus scientifically described it in 1758. Two... | Biology and health sciences | Felines | Animals |
268216 | https://en.wikipedia.org/wiki/Fuchsia | Fuchsia | Fuchsia ( ) is a genus of flowering plants that consists mostly of shrubs or small trees.
Almost 110 species of Fuchsia are recognized; the vast majority are native to South America, but a few occur north through Central America to Mexico, and also several from New Zealand to Tahiti. One species, F. magellanica, exte... | Biology and health sciences | Myrtales | Plants |
268420 | https://en.wikipedia.org/wiki/Foam | Foam | Foams are two-phase material systems where a gas is dispersed in a second, non-gaseous material, specifically, in which gas cells are enclosed by a distinct liquid or solid material. The foam "may contain more or less liquid [or solid] according to circumstances", although in the case of gas-liquid foams, the gas occup... | Physical sciences | Chemical mixtures: General | null |
268923 | https://en.wikipedia.org/wiki/Elasticity%20%28physics%29 | Elasticity (physics) | In physics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. Solid objects will deform when adequate loads are applied to them; if the material is elastic, the object will return to its initia... | Physical sciences | Solid mechanics | null |
269002 | https://en.wikipedia.org/wiki/Aquila%20%28constellation%29 | Aquila (constellation) | Aquila is a constellation on the celestial equator. Its name is Latin for 'eagle' and it represents the bird that carried Zeus/Jupiter's thunderbolts in Greek-Roman mythology.
Its brightest star, Altair, is one vertex of the Summer Triangle asterism. The constellation is best seen in the northern summer, as it is loca... | Physical sciences | Other | Astronomy |
269357 | https://en.wikipedia.org/wiki/Wildcat | Wildcat | The wildcat is a species complex comprising two small wild cat species: the European wildcat (Felis silvestris) and the African wildcat (F. lybica). The European wildcat inhabits forests in Europe, Anatolia and the Caucasus, while the African wildcat inhabits semi-arid landscapes and steppes in Africa, the Arabian Peni... | Biology and health sciences | Felines | Animals |
269630 | https://en.wikipedia.org/wiki/Stencil | Stencil | Stencilling produces an image or pattern on a surface by applying pigment to a surface through an intermediate object, with designed holes in the intermediate object. The holes allow the pigment to reach only some parts of the surface creating the design. The stencil is both the resulting image or pattern and the inter... | Technology | Printing | null |
269676 | https://en.wikipedia.org/wiki/Wet%20nurse | Wet nurse | A wet nurse is a woman who breastfeeds and cares for another's child. Wet nurses are employed if the mother dies, if she is unable to nurse the child herself sufficiently or chooses not to do so. Wet-nursed children may be known as "milk-siblings", and in some societies, the families are linked by a special relationshi... | Biology and health sciences | Health and fitness: General | Health |
270054 | https://en.wikipedia.org/wiki/Formal%20verification | Formal verification | In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of a system with respect to a certain formal specification or property, using formal methods of mathematics.
Formal verification is a key incentive for formal specification of systems, and is at the... | Technology | Software development: General | null |
270445 | https://en.wikipedia.org/wiki/Human%20hair%20color | Human hair color | Human hair color is the pigmentation of human hair follicles and shafts due to two types of melanin: eumelanin and pheomelanin. Generally, the more melanin present, the darker the hair. Its tone depends on the ratio of black or brown eumelanin to yellow or red pheomelanin. Melanin levels can vary over time, causing a p... | Biology and health sciences | Health and fitness: General | Health |
270925 | https://en.wikipedia.org/wiki/Bulletin%20board | Bulletin board | A bulletin board (pinboard, pin board, noticeboard, or notice board in British English) is a surface intended for the posting of public messages, for example, to advertise items wanted or for sale, announce events, or provide information. Bulletin boards are often made of a material such as cork to facilitate addition ... | Technology | Media and communication: Basics | null |
271046 | https://en.wikipedia.org/wiki/Resonance%20%28chemistry%29 | Resonance (chemistry) | In chemistry, resonance, also called mesomerism, is a way of describing bonding in certain molecules or polyatomic ions by the combination of several contributing structures (or forms, also variously known as resonance structures or canonical structures) into a resonance hybrid (or hybrid structure) in valence bond the... | Physical sciences | Bond structure | Chemistry |
271396 | https://en.wikipedia.org/wiki/Pennyweight | Pennyweight | A pennyweight (dwt) is a unit of mass equal to 24 grains, of a troy ounce, of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grams. It is abbreviated dwt, d standing for denarius (an ancient Roman coin), and later used as the symbol of an old British penny (see £sd).
History
In the Mid... | Physical sciences | Mass and weight | Basics and measurement |
3572234 | https://en.wikipedia.org/wiki/Terrace%20%28geology%29 | Terrace (geology) | In geology, a terrace is a step-like landform. A terrace consists of a flat or gently sloping geomorphic surface, called a tread, that is typically bounded on one side by a steeper ascending slope, which is called a "riser" or "scarp". The tread and the steeper descending slope (riser or scarp) together constitute the ... | Physical sciences | Other erosional landforms | Earth science |
3573584 | https://en.wikipedia.org/wiki/Modelling%20clay | Modelling clay | Modelling clay or modelling compound is any of a group of malleable substances used in building and sculpting. The material compositions and production processes vary considerably.
Ceramic clay
Ceramic clays are water-based substances made from clay minerals and other raw materials. They are baked at high temperatures... | Technology | Artist's tools | null |
8282374 | https://en.wikipedia.org/wiki/Tropical%20cyclone | Tropical cyclone | A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its location and strength, a tropical cyclone is called a hurricane (), typhoon (), tropic... | Physical sciences | Earth science | null |
26734587 | https://en.wikipedia.org/wiki/Orthotics | Orthotics | Orthotics () is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces, calipers, or splints. An is "an externally applied device used to influence the structural and functional characteristics of the neuromuscular and skeletal systems." Orthotists are medical professiona... | Biology and health sciences | Fields of medicine | Health |
22395556 | https://en.wikipedia.org/wiki/Agricultural%20engineering | Agricultural engineering | Agricultural engineering, also known as agricultural and biosystems engineering, is the field of study and application of engineering science and designs principles for agriculture purposes, combining the various disciplines of mechanical, civil, electrical, food science, environmental, software, and chemical engineeri... | Technology | Disciplines | null |
6303947 | https://en.wikipedia.org/wiki/Banana%20pepper | Banana pepper | The banana pepper (also known as the yellow wax pepper or banana chili) is an average-sized member of the chili pepper family that has a mild, tangy taste. While typically bright yellow, it is possible for them to change to green, red, or orange as they ripen. It is often pickled, stuffed or used as a raw ingredient in... | Biology and health sciences | Botanical fruits used as culinary vegetables | Plants |
6308405 | https://en.wikipedia.org/wiki/Delta%20potential | Delta potential | In quantum mechanics the delta potential is a potential well mathematically described by the Dirac delta function - a generalized function. Qualitatively, it corresponds to a potential which is zero everywhere, except at a single point, where it takes an infinite value. This can be used to simulate situations where a p... | Physical sciences | Quantum mechanics | Physics |
6309425 | https://en.wikipedia.org/wiki/Tamandua | Tamandua | Tamandua is a genus of anteaters in the Myrmecophagidae family with two species: the southern tamandua (T. tetradactyla) and the northern tamandua (T. mexicana). They live in forests and grasslands, are semiarboreal, and possess partially prehensile tails. They mainly eat ants and termites, but they occasionally eat be... | Biology and health sciences | Xenarthra | Animals |
481843 | https://en.wikipedia.org/wiki/Uranium-235 | Uranium-235 | Uranium-235 ( or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exists in nature as a primordial nuclide.
Uranium-235 has a half-life of 703.8 million... | Physical sciences | Actinides | Chemistry |
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