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6432 | https://en.wikipedia.org/wiki/Caelum | Caelum | Caelum is a faint constellation in the southern sky, introduced in the 1750s by Nicolas Louis de Lacaille and counted among the 88 modern constellations. Its name means "chisel" in Latin, and it was formerly known as Caelum Sculptorium ("Engraver's Chisel"); it is a rare word, unrelated to the far more common Latin ca... | Physical sciences | Other | Astronomy |
6435 | https://en.wikipedia.org/wiki/Canes%20Venatici | Canes Venatici | Canes Venatici ( ) is one of the 88 constellations designated by the International Astronomical Union (IAU). It is a small northern constellation that was created by Johannes Hevelius in the 17th century. Its name is Latin for 'hunting dogs', and the constellation is often depicted in illustrations as representing the ... | Physical sciences | Other | Astronomy |
6436 | https://en.wikipedia.org/wiki/Chamaeleon | Chamaeleon | Chamaeleon () is a small constellation in the deep southern sky. It is named after the chameleon, a kind of lizard. It was first defined in the 16th century.
History
Chamaeleon was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman. It fi... | Physical sciences | Other | Astronomy |
6437 | https://en.wikipedia.org/wiki/Cholesterol | Cholesterol | Cholesterol is the principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.
Cholesterol is biosynthesized by all animal cells and is an essential structural and signaling component of animal cell membranes. In vertebrates, hepatic cells typ... | Biology and health sciences | Biochemistry and molecular biology | null |
6438 | https://en.wikipedia.org/wiki/Chromosome | Chromosome | A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins; in eukaryotic cells, the most important of these proteins are the histones. Aided by chaperone proteins, the histones ... | Biology and health sciences | Organelles and other cell parts | null |
6445 | https://en.wikipedia.org/wiki/Carcinogen | Carcinogen | A carcinogen () is any agent that promotes the development of cancer. Carcinogens can include synthetic chemicals, naturally occurring substances, physical agents such as ionizing and non-ionizing radiation, and biologic agents such as viruses and bacteria. Most carcinogens act by creating mutations in DNA that disr... | Biology and health sciences | Cancer | null |
6446 | https://en.wikipedia.org/wiki/Camouflage | Camouflage | Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings. A third appr... | Biology and health sciences | Zoology: General | null |
6449 | https://en.wikipedia.org/wiki/Clock | Clock | A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millen... | Technology | Navigation and timekeeping | null |
6458 | https://en.wikipedia.org/wiki/Ceramic | Ceramic | A ceramic is any of the various hard, brittle, heat-resistant, and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcelain, and brick.
The earliest ceramics made by humans were fired clay bricks us... | Technology | Material and chemical | null |
6513 | https://en.wikipedia.org/wiki/Client%E2%80%93server%20model | Client–server model | The client–server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients. Often clients and servers communicate over a computer network on separate hardware, but both client and server may be ... | Technology | Networks | null |
6517 | https://en.wikipedia.org/wiki/Clutch | Clutch | A clutch is a mechanical device that allows an output shaft to be disconnected from a rotating input shaft. The clutch's input shaft is typically attached to a motor, while the clutch's output shaft is connected to the mechanism that does the work.
In a motor vehicle, the clutch acts as a mechanical linkage between th... | Technology | Components_2 | null |
6535 | https://en.wikipedia.org/wiki/Celery | Celery | Celery (Apium graveolens Dulce Group or Apium graveolens var. dulce) is a cultivated plant belonging to the species Apium graveolens in the family Apiaceae that has been used as a vegetable since ancient times. Celery has a long fibrous stalk tapering into leaves. Celery seed powder is used as a spice. Celeriac and lea... | Biology and health sciences | Apiales | null |
6543 | https://en.wikipedia.org/wiki/Carnivore | Carnivore | A carnivore , or meat-eater (Latin, caro, genitive carnis, meaning meat or "flesh" and vorare meaning "to devour"), is an animal or plant whose nutrition and energy requirements are met by consumption of animal tissues (mainly muscle, fat and other soft tissues) as food, whether through predation or scavenging.
Nomenc... | Biology and health sciences | Ethology | null |
6556 | https://en.wikipedia.org/wiki/Coprime%20integers | Coprime integers | In number theory, two integers and are coprime, relatively prime or mutually prime if the only positive integer that is a divisor of both of them is 1. Consequently, any prime number that divides does not divide , and vice versa. This is equivalent to their greatest common divisor (GCD) being 1. One says also is pr... | Mathematics | Prime numbers | null |
6590 | https://en.wikipedia.org/wiki/Cruise%20missile | Cruise missile | A cruise missile is an unmanned self-propelled guided missile that sustains flight through aerodynamic lift for most of its flight path. Cruise missiles are designed to deliver a large payload over long distances with high precision. Modern cruise missiles are capable of traveling at high subsonic, supersonic, or hyper... | Technology | Missiles | null |
6596 | https://en.wikipedia.org/wiki/Computer%20vision | Computer vision | Computer vision tasks include methods for acquiring, processing, analyzing, and understanding digital images, and extraction of high-dimensional data from the real world in order to produce numerical or symbolic information, e.g. in the form of decisions. "Understanding" in this context signifies the transformation of ... | Technology | Artificial intelligence concepts | null |
6598 | https://en.wikipedia.org/wiki/Camel | Camel | A camel (from and () from Ancient Semitic: gāmāl) is an even-toed ungulate in the genus Camelus that bears distinctive fatty deposits known as "humps" on its back. Camels have long been domesticated and, as livestock, they provide food (camel milk and meat) and textiles (fiber and felt from camel hair). Camels are wo... | Biology and health sciences | Artiodactyla | null |
6621 | https://en.wikipedia.org/wiki/Cnidaria | Cnidaria | Cnidaria ( ) is a phylum under kingdom Animalia containing over 11,000 species of aquatic invertebrates found both in fresh water and marine environments (predominantly the latter), including jellyfish, hydroids, sea anemones, corals and some of the smallest marine parasites. Their distinguishing features are an uncent... | Biology and health sciences | Cnidarians | null |
6631 | https://en.wikipedia.org/wiki/Bus%20%28computing%29 | Bus (computing) | In computer architecture, a bus (historically also called a data highway or databus) is a communication system that transfers data between components inside a computer or between computers. It encompasses both hardware (e.g., wires, optical fiber) and software, including communication protocols. At its core, a bus is a... | Technology | Computer hardware | null |
6641 | https://en.wikipedia.org/wiki/Cane%20toad | Cane toad | The cane toad (Rhinella marina), also known as the giant neotropical toad or marine toad, is a large, terrestrial true toad native to South and mainland Central America, but which has been introduced to various islands throughout Oceania and the Caribbean, as well as Northern Australia. It is a member of the genus Rhin... | Biology and health sciences | Frogs and toads | Animals |
6670 | https://en.wikipedia.org/wiki/Cement | Cement | A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, pro... | Technology | Building materials | null |
6678 | https://en.wikipedia.org/wiki/Cat | Cat | The cat (Felis catus), also referred to as the domestic cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Advances in archaeology and genetics have shown that the domestication of the cat occurred in the Near East around 7500 BC. It is commonly kept as a pet and... | Biology and health sciences | Biology | null |
6682 | https://en.wikipedia.org/wiki/Clade | Clade | In biological phylogenetics, a clade (), also known as a monophyletic group or natural group, is a grouping of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. In the taxonomical literature, sometimes the Latin form cladus (plural cladi) i... | Biology and health sciences | Phylogenetics and taxonomy | Biology |
6696 | https://en.wikipedia.org/wiki/Chain%20mail | Chain mail | Chain mail (also known as chain-mail, mail or maille) is a type of armour consisting of small metal rings linked together in a pattern to form a mesh. It was in common military use between the 3rd century BC and the 16th century AD in Europe, while it continued to be used in Asia, Africa, and the Middle East as late as... | Technology | Armour | null |
6710 | https://en.wikipedia.org/wiki/Coyote | Coyote | The coyote (Canis latrans), also known as the American jackal, prairie wolf, or brush wolf, is a species of canine native to North America. It is smaller than its close relative, the gray wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecological niche as the gol... | Biology and health sciences | Carnivora | null |
6736 | https://en.wikipedia.org/wiki/Canidae | Canidae | Canidae (; from Latin, canis, "dog") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid (). The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. The Caninae are known a... | Biology and health sciences | Carnivora | null |
6775 | https://en.wikipedia.org/wiki/Chlorophyta | Chlorophyta | Chlorophyta () is a division of green algae informally called chlorophytes.
Description
Chlorophytes are eukaryotic organisms composed of cells with a variety of coverings or walls, and usually a single green chloroplast in each cell. They are structurally diverse: most groups of chlorophytes are unicellular, such a... | Biology and health sciences | Green algae | null |
6776 | https://en.wikipedia.org/wiki/Capybara | Capybara | The capybara or greater capybara (Hydrochoerus hydrochaeris) is the largest living rodent, native to South America. It is a member of the genus Hydrochoerus. The only other extant member is the lesser capybara (Hydrochoerus isthmius). Its close relatives include guinea pigs and rock cavies, and it is more distantly rel... | Biology and health sciences | Rodents | null |
9383513 | https://en.wikipedia.org/wiki/Pauli%20equation | Pauli equation | In quantum mechanics, the Pauli equation or Schrödinger–Pauli equation is the formulation of the Schrödinger equation for spin-1/2 particles, which takes into account the interaction of the particle's spin with an external electromagnetic field. It is the non-relativistic limit of the Dirac equation and can be used whe... | Physical sciences | Quantum mechanics | Physics |
9387505 | https://en.wikipedia.org/wiki/Unenlagiinae | Unenlagiinae | Unenlagiinae is a subfamily of long-snouted paravian theropods. They are traditionally considered to be members of Dromaeosauridae, though some authors place them into their own family, Unenlagiidae, sometimes alongside the subfamily Halszkaraptorinae. Definitive members are known from South America, though some resear... | Biology and health sciences | Theropods | Animals |
9387918 | https://en.wikipedia.org/wiki/Human%20nose | Human nose | The human nose is the first organ of the respiratory system. It is also the principal organ in the olfactory system. The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum, which separates the nostrils and divides the nasal cavity into two.
The nose has an importa... | Biology and health sciences | Human anatomy | Health |
9388131 | https://en.wikipedia.org/wiki/Type%20Ib%20and%20Ic%20supernovae | Type Ib and Ic supernovae | Type Ib and Type Ic supernovae are categories of supernovae that are caused by the stellar core collapse of massive stars. These stars have shed or been stripped of their outer envelope of hydrogen, and, when compared to the spectrum of Type Ia supernovae, they lack the absorption line of silicon. Compared to Type Ib,... | Physical sciences | Stellar astronomy | Astronomy |
2190689 | https://en.wikipedia.org/wiki/Fraser%20fir | Fraser fir | The Fraser fir (Abies fraseri), sometimes spelled Frasier fir, is an endangered species of fir native to the Appalachian Mountains of the southeastern United States. They are endemic to only seven montane regions in the Appalachian Mountains.
Taxonomy
Abies fraseri is closely related to Abies balsamea (balsam fir), ... | Biology and health sciences | Pinaceae | Plants |
2190852 | https://en.wikipedia.org/wiki/Ancylostoma | Ancylostoma | Ancylostoma is a genus of nematodes that includes some species of hookworms.
Species include:
Ancylostoma braziliense, commonly infects cats, popularly known in Brazil as bicho-geográfico
Ancylostoma caninum, commonly infects dogs
Ancylostoma ceylanicum
Ancylostoma duodenale
Ancylostoma pluridentatum, commonly in... | Biology and health sciences | Ecdysozoa | Animals |
2192496 | https://en.wikipedia.org/wiki/Fungiculture | Fungiculture | Fungiculture is the cultivation of fungi such as mushrooms. Cultivating fungi can yield foods (which include mostly mushrooms), medicine, construction materials and other products. A mushroom farm is involved in the business of growing fungi.
The word is also commonly used to refer to the practice of cultivation of fu... | Technology | Agriculture_2 | null |
2195020 | https://en.wikipedia.org/wiki/Resultant | Resultant | In mathematics, the resultant of two polynomials is a polynomial expression of their coefficients that is equal to zero if and only if the polynomials have a common root (possibly in a field extension), or, equivalently, a common factor (over their field of coefficients). In some older texts, the resultant is also call... | Mathematics | Other algebra topics | null |
2195217 | https://en.wikipedia.org/wiki/Gopher | Gopher | Pocket gophers, commonly referred to simply as gophers, are burrowing rodents of the family Geomyidae. The roughly 41 species are all endemic to North and Central America. They are commonly known for their extensive tunneling activities and their ability to destroy farms and gardens.
The name "pocket gopher" on its o... | Biology and health sciences | Rodents | Animals |
8721011 | https://en.wikipedia.org/wiki/Low-ionization%20nuclear%20emission-line%20region | Low-ionization nuclear emission-line region | A low-ionization nuclear emission-line region (LINER) is a type of galactic nucleus that is defined by its spectral line emission. The spectra typically include line emission from weakly ionized or neutral atoms, such as O, O+, N+, and S+. Conversely, the spectral line emission from strongly ionized atoms, such as O+... | Physical sciences | Active galactic nucleus | Astronomy |
5532116 | https://en.wikipedia.org/wiki/Phytelephas | Phytelephas | Phytelephas is a genus containing six known species of dioecious palms (family Arecaceae), occurring from southern Panama along the Andes to Ecuador, Bolivia, Colombia, northwestern Brazil, and Peru. They are commonly known as ivory palms, ivory-nut palms or tagua palms (); the scientific name Phytelephas means "plant ... | Biology and health sciences | Arecales (inc. Palms) | Plants |
5536832 | https://en.wikipedia.org/wiki/Diplocaulus | Diplocaulus | Diplocaulus (meaning "double stalk") is an extinct genus of lepospondyl amphibians which lived from the Late Carboniferous to the Late Permian of North America and Africa. Diplocaulus is by far the largest and best-known of the lepospondyls, characterized by a distinctive boomerang-shaped skull. Remains attributed to D... | Biology and health sciences | Prehistoric amphibians | Animals |
5537238 | https://en.wikipedia.org/wiki/Triadobatrachus | Triadobatrachus | Triadobatrachus is an extinct genus of salientian frog-like amphibians, including only one known species, Triadobatrachus massinoti. It is the oldest member of the frog lineage known, and an excellent example of a transitional fossil. It lived during the Early Triassic about 250 million years ago, in what is now Madaga... | Biology and health sciences | Prehistoric amphibians | Animals |
996950 | https://en.wikipedia.org/wiki/Starburst%20region | Starburst region | A starburst region is a region of space that is undergoing a large amount of star formation. A starburst is an astrophysical process that involves star formation occurring at a rate that is large compared to the rate that is typically observed. This starburst activity will consume the available interstellar gas supply ... | Physical sciences | Stellar astronomy | Astronomy |
997476 | https://en.wikipedia.org/wiki/Night%20sky | Night sky | The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon.
Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. Aurorae lig... | Physical sciences | Astronomy basics | Astronomy |
998070 | https://en.wikipedia.org/wiki/Node%20%28physics%29 | Node (physics) | A node is a point along a standing wave where the wave has minimum amplitude. For instance, in a vibrating guitar string, the ends of the string are nodes. By changing the position of the end node through frets, the guitarist changes the effective length of the vibrating string and thereby the note played. The opposi... | Physical sciences | Waves | Physics |
998116 | https://en.wikipedia.org/wiki/Node%20%28networking%29 | Node (networking) | In telecommunications networks, a node (, ‘knot’) is either a redistribution point or a communication endpoint.
A physical network node is an electronic device that is attached to a network, and is capable of creating, receiving, or transmitting information over a communication channel. In data communication, a phys... | Technology | Networks | null |
998156 | https://en.wikipedia.org/wiki/Haze | Haze | Haze is traditionally an atmospheric phenomenon in which dust, smoke, and other dry particulates suspended in air obscure visibility and the clarity of the sky. The World Meteorological Organization manual of codes includes a classification of particulates causing horizontal obscuration into categories of fog, ice fog,... | Physical sciences | Atmospheric optics | Earth science |
999752 | https://en.wikipedia.org/wiki/Lithocarpus | Lithocarpus | Lithocarpus is a genus in the beech family, Fagaceae. Trees in this genus are commonly known as the stone oaks and differ from Quercus primarily because they produce insect-pollinated flowers on erect spikes and the female flowers have short styles with punctate stigmas. At current, around 340 species have been describ... | Biology and health sciences | Fagales | Plants |
590920 | https://en.wikipedia.org/wiki/Hemodialysis | Hemodialysis | Hemodialysis, also spelled haemodialysis, or simply dialysis, is a process of filtering the blood of a person whose kidneys are not working normally. This type of dialysis achieves the extracorporeal removal of waste products such as creatinine and urea and free water from the blood when the kidneys are in a state of k... | Biology and health sciences | Treatments | Health |
591253 | https://en.wikipedia.org/wiki/Kirchhoff%27s%20circuit%20laws | Kirchhoff's circuit laws | Kirchhoff's circuit laws are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits. They were first described in 1845 by German physicist Gustav Kirchhoff. This generalized the work of Georg Ohm and preceded the work of James Cl... | Physical sciences | Electrical circuits | null |
591394 | https://en.wikipedia.org/wiki/Principle%20of%20explosion | Principle of explosion | In classical logic, intuitionistic logic, and similar logical systems, the principle of explosion is the law according to which any statement can be proven from a contradiction. That is, from a contradiction, any proposition (including its negation) can be inferred; this is known as deductive explosion.
The proof of t... | Mathematics | Mathematical logic | null |
591839 | https://en.wikipedia.org/wiki/Flammulina%20filiformis | Flammulina filiformis | Flammulina filiformis, commonly called enoki mushroom, is a species of edible agaric (gilled mushroom) in the family Physalacriaceae. It is widely cultivated in East Asia, and well known for its role in Japanese and Chinese cuisine. Until recently, the species was considered to be conspecific with the European Flammuli... | Biology and health sciences | Edible fungi | Plants |
592151 | https://en.wikipedia.org/wiki/Even%20and%20odd%20functions | Even and odd functions | In mathematics, an even function is a real function such that for every in its domain. Similarly, an odd function is a function such that for every in its domain.
They are named for the parity of the powers of the power functions which satisfy each condition: the function is even if n is an even integer, and it ... | Mathematics | Functions: General | null |
593231 | https://en.wikipedia.org/wiki/Trunk%20%28botany%29 | Trunk (botany) | In botany, the trunk (or bole) is the stem and main wooden axis of a tree, which is an important feature in tree identification, and which often differs markedly from the bottom of the trunk to the top, depending on the species.
The trunk is the most important part of the tree for timber production.
Occurrence
Trunks... | Biology and health sciences | Plant stem | null |
14534679 | https://en.wikipedia.org/wiki/Climate%20of%20the%20Arctic | Climate of the Arctic | The climate of the Arctic is characterized by long, cold winters and short, cool summers. There is a large amount of variability in climate across the Arctic, but all regions experience extremes of solar radiation in both summer and winter. Some parts of the Arctic are covered by ice (sea ice, glacial ice, or snow) yea... | Physical sciences | Climates | Earth science |
14538619 | https://en.wikipedia.org/wiki/Vitamin%20B12 | Vitamin B12 | Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. It is important in the normal functioning of the nervous system via its role i... | Biology and health sciences | Vitamins | Health |
1552607 | https://en.wikipedia.org/wiki/Linkage%20%28mechanical%29 | Linkage (mechanical) | A mechanical linkage is an assembly of systems connected so as to manage forces and movement. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called jo... | Technology | Mechanisms | null |
1553128 | https://en.wikipedia.org/wiki/Freshwater%20crocodile | Freshwater crocodile | The freshwater crocodile (Crocodylus johnstoni), also known commonly as the Australian freshwater crocodile, Johnstone's crocodile, and the freshie, is a species of crocodile native to the northern regions of Australia. Unlike its much larger Australian relative, the saltwater crocodile, the freshwater crocodile is not... | Biology and health sciences | Crocodilia | Animals |
1553731 | https://en.wikipedia.org/wiki/Slipper%20lobster | Slipper lobster | Slipper lobsters are a family (Scyllaridae) of about 90 species of achelate crustaceans, in the Decapoda clade Reptantia, found in all warm oceans and seas. They are not true lobsters, but are more closely related to spiny lobsters and furry lobsters. Slipper lobsters are instantly recognisable by their enlarged antenn... | Biology and health sciences | Crayfishes and lobsters | Animals |
1554235 | https://en.wikipedia.org/wiki/Archosauromorpha | Archosauromorpha | Archosauromorpha (Greek for "ruling lizard forms") is a clade of diapsid reptiles containing all reptiles more closely related to archosaurs (such as crocodilians and dinosaurs, including birds) rather than lepidosaurs (such as tuataras, lizards, and snakes). Archosauromorphs first appeared during the late Middle Permi... | Biology and health sciences | Reptiles: General | Animals |
1554274 | https://en.wikipedia.org/wiki/Golden%20jackal | Golden jackal | The golden jackal (Canis aureus), also called the common jackal, is a wolf-like canid that is native to Eurasia. The golden jackal's coat varies in color from a pale creamy yellow in summer to a dark tawny beige in winter. It is smaller and has shorter legs, a shorter tail, a more elongated torso, a less-prominent fore... | Biology and health sciences | Canines | Animals |
1554995 | https://en.wikipedia.org/wiki/Polyol | Polyol | In organic chemistry, a polyol is an organic compound containing multiple hydroxyl groups (). The term "polyol" can have slightly different meanings depending on whether it is used in food science or polymer chemistry. Polyols containing two, three and four hydroxyl groups are diols, triols, and tetrols, respectively.
... | Physical sciences | Alcohols | Chemistry |
1555022 | https://en.wikipedia.org/wiki/Web%202.0 | Web 2.0 | Web 2.0 (also known as participative (or participatory) web and social web) refers to websites that emphasize user-generated content, ease of use, participatory culture, and interoperability (i.e., compatibility with other products, systems, and devices) for end users.
The term was coined by Darcy DiNucci in 1999 and ... | Technology | Internet | null |
1555317 | https://en.wikipedia.org/wiki/Gunter%27s%20chain | Gunter's chain | Gunter's chain (also known as Gunter's measurement) is a distance-measuring device used for surveying. It was designed and introduced in 1620 by English clergyman and mathematician Edmund Gunter (1581–1626). It enabled plots of land to be accurately surveyed and plotted, for legal and commercial purposes.
Gunter devel... | Technology | Surveying tools | null |
1555695 | https://en.wikipedia.org/wiki/Palm%20%28unit%29 | Palm (unit) | The palm is an obsolete anthropic unit of length, originally based on the width of the human palm and then variously standardized. The same name is also used for a second, rather larger unit based on the length of the human hand.
The width of the palm was a traditional unit in Ancient Egypt, Israel, Greece, and Rome a... | Physical sciences | English | Basics and measurement |
1556266 | https://en.wikipedia.org/wiki/Nail%20%28unit%29 | Nail (unit) | A nail, as a unit of cloth measurement, is generally a sixteenth of a yard or 2 inches (5.715 cm). The nail was apparently named after the practice of hammering brass nails into the counter at shops where cloth was sold. On the other hand, R D Connor, in The weights and measures of England (p 84) states that the nail w... | Physical sciences | English | Basics and measurement |
9394749 | https://en.wikipedia.org/wiki/Temperate%20deciduous%20forest | Temperate deciduous forest | Temperate deciduous or temperate broad-leaf forests are a variety of temperate forest 'dominated' by deciduous trees that lose their leaves each winter. They represent one of Earth's major biomes, making up 9.69% of global land area. These forests are found in areas with distinct seasonal variation that cycle through w... | Physical sciences | Forests | Earth science |
4147723 | https://en.wikipedia.org/wiki/Scleromochlus | Scleromochlus | Scleromochlus (from , 'hard' and , 'lever') is an extinct genus of small pterosauromorph archosaurs from the Late Triassic Lossiemouth Sandstone of Scotland. The genus contains the type and only species Scleromochlus taylori, named by Arthur Smith Woodward in 1907.
Discovery
Its fossils have been found in the Carn... | Biology and health sciences | Other prehistoric archosaurs | Animals |
10897878 | https://en.wikipedia.org/wiki/Mesoscopic%20physics | Mesoscopic physics | Mesoscopic physics is a subdiscipline of condensed matter physics that deals with materials of an intermediate size. These materials range in size between the nanoscale for a quantity of atoms (such as a molecule) and of materials measuring micrometres. The lower limit can also be defined as being the size of individua... | Physical sciences | Basics_2 | Physics |
10903919 | https://en.wikipedia.org/wiki/Anal%20hygiene | Anal hygiene | Anal hygiene refers to practices (anal cleansing) that are performed on the anus to maintain personal hygiene, usually immediately or shortly after defecation. Anal cleansing may also occur while showering or bathing. Post-defecation cleansing is rarely discussed academically, partly due to the social taboo surrounding... | Biology and health sciences | Hygiene and grooming: General | Health |
7218230 | https://en.wikipedia.org/wiki/Pontederia%20crassipes | Pontederia crassipes | Pontederia crassipes (formerly Eichhornia crassipes), commonly known as common water hyacinth, is an aquatic plant native to South America, naturalized throughout the world, and often invasive outside its native range. It is the sole species of the subgenus Oshunae within the genus Pontederia. Anecdotally, it is known ... | Biology and health sciences | Monocots | null |
7221088 | https://en.wikipedia.org/wiki/Air%20conditioning | Air conditioning | Air conditioning, often abbreviated as A/C (US) or air con (UK), is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature and in some cases also controlling the humidity of internal air. Air conditioning can be achieved using a mechanical 'air conditioner' or by other me... | Technology | Household appliances | null |
16074530 | https://en.wikipedia.org/wiki/Lakes%20of%20Titan | Lakes of Titan | Lakes of liquid ethane and methane exist on the surface of Titan, Saturn's largest moon. This was confirmed by the Cassini–Huygens space probe, as had been suspected since the 1980s. The large bodies of liquid are known as (seas) and the small ones as (lakes).
History and discovery
The possibility that there are se... | Physical sciences | Solar System | Astronomy |
49598 | https://en.wikipedia.org/wiki/Pigment | Pigment | A pigment is a powder used to add color or change visual appearance. Pigments are completely or nearly insoluble and chemically unreactive in water or another medium; in contrast, dyes are colored substances which are soluble or go into solution at some stage in their use. Dyes are often organic compounds whereas pigme... | Technology | Artist's tools | null |
49600 | https://en.wikipedia.org/wiki/Mantophasmatidae | Mantophasmatidae | Mantophasmatidae is a family of carnivorous wingless insects within the monotypic order Mantophasmatodea, which was discovered in Africa in 2001. Recent evidence indicates a sister group relationship with Grylloblattidae (classified in the order Grylloblattodea), and Arillo and Engel have combined the two groups into ... | Biology and health sciences | Insects: General | Animals |
49604 | https://en.wikipedia.org/wiki/Hearing%20loss | Hearing loss | Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction an... | Biology and health sciences | Disability | null |
49611 | https://en.wikipedia.org/wiki/Menopause | Menopause | Menopause, also known as the climacteric, is the time when menstrual periods permanently stop, marking the end of reproduction. It typically occurs between the ages of 45 and 55, although the exact timing can vary. Menopause is usually a natural change related to a decrease in circulating blood estrogen levels. It can ... | Biology and health sciences | Animal reproduction | null |
49627 | https://en.wikipedia.org/wiki/Universal%20Disk%20Format | Universal Disk Format | Universal Disk Format (UDF) is an open, vendor-neutral file system for computer data storage for a broad range of media. In practice, it has been most widely used for DVDs and newer optical disc formats, supplanting ISO 9660. Due to its design, it is very well suited to incremental updates on both write-once and re-wri... | Technology | Data storage and memory | null |
49658 | https://en.wikipedia.org/wiki/Aurora | Aurora | An aurora ( aurorae or auroras),
also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear ... | Physical sciences | Atmospheric optics | null |
49718 | https://en.wikipedia.org/wiki/Poynting%20vector | Poynting vector | In physics, the Poynting vector (or Umov–Poynting vector) represents the directional energy flux (the energy transfer per unit area, per unit time) or power flow of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre (W/m2); kg/s3 in base SI units. It is named after its discoverer ... | Physical sciences | Electromagnetic radiation | Physics |
49725 | https://en.wikipedia.org/wiki/American%20bison | American bison | The American bison (Bison bison; : bison), commonly known as the American buffalo, or simply buffalo (not to be confused with true buffalo), is a species of bison that is endemic (or native) to North America. It is one of two extant species of bison, along with the European bison. Its historical range circa 9000 BC is... | Biology and health sciences | Artiodactyla | null |
49786 | https://en.wikipedia.org/wiki/Microclimate | Microclimate | A microclimate (or micro-climate) is a local set of atmospheric conditions that differ from those in the surrounding areas, often slightly but sometimes substantially. The term may refer to areas as small as a few square meters or smaller (for example a garden bed, underneath a rock, or a cave) or as large as many squa... | Physical sciences | Climatology: General | Earth science |
49803 | https://en.wikipedia.org/wiki/IBM%20PC%20compatible | IBM PC compatible | An IBM PC compatible is any personal computer that is hardware- and software-compatible with the IBM Personal Computer (IBM PC) and its subsequent models. Like the original IBM PC, an IBM PC–compatible computer uses an x86-based central processing unit, sourced either from Intel or a second source like AMD, Cyrix or ot... | Technology | Computer hardware | null |
49871 | https://en.wikipedia.org/wiki/Eucalyptus | Eucalyptus | Eucalyptus () is a genus of more than 700 species of flowering plants in the family Myrtaceae. Most species of Eucalyptus are trees, often mallees, and a few are shrubs. Along with several other genera in the tribe Eucalypteae, including Corymbia and Angophora, they are commonly known as eucalypts or "gum trees". Plant... | Biology and health sciences | Myrtales | null |
49890 | https://en.wikipedia.org/wiki/Herring | Herring | Herring are various species of forage fish, belonging to the order Clupeiformes.
Herring often move in large schools around fishing banks and near the coast, found particularly in shallow, temperate waters of the North Pacific and North Atlantic Oceans, including the Baltic Sea, as well as off the west coast of South ... | Biology and health sciences | Clupeiformes | null |
49976 | https://en.wikipedia.org/wiki/Chrysoberyl | Chrysoberyl | The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula BeAl2O4. The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar". Despite the similarity of their names, chrysoberyl and beryl are two completely different gemstones, although... | Physical sciences | Minerals | Earth science |
50047 | https://en.wikipedia.org/wiki/Rainforest | Rainforest | Rainforests are forests characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropical rainforests or temperate rainforests, but other types have been described.
Estimates vary fr... | Physical sciences | Forests | null |
50048 | https://en.wikipedia.org/wiki/Polar%20climate | Polar climate | The polar climate regions are characterized by a lack of warm summers but with varying winters. Every month a polar climate has an average temperature of less than . Regions with a polar climate cover more than 20% of the Earth's area. Most of these regions are far from the equator and near the poles, and in this case,... | Physical sciences | Climates | Earth science |
50049 | https://en.wikipedia.org/wiki/Subarctic%20climate | Subarctic climate | The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50°N to 70°N, poleward of the humi... | Physical sciences | Climates | Earth science |
50051 | https://en.wikipedia.org/wiki/Temperate%20climate | Temperate climate | In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout the year and more distinct seasonal changes compared to tropical climat... | Physical sciences | Climatology | null |
50111 | https://en.wikipedia.org/wiki/Zebu | Zebu | The zebu (; Bos indicus), sometimes known in the plural as indicine cattle, Camel cow or humped cattle, is a species or subspecies of domestic cattle originating in South Asia. Zebu, like many Sanga cattle breeds, differs from taurine cattle by a fatty hump on their shoulders, a large dewlap, and sometimes drooping ear... | Biology and health sciences | Bovidae | Animals |
50185 | https://en.wikipedia.org/wiki/Jellyfish | Jellyfish | Jellyfish, also known as sea jellies, are the medusa-phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria.
Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by stalks rather than being motile. They are made of an umbrel... | Biology and health sciences | Cnidarians | null |
50245 | https://en.wikipedia.org/wiki/Sugar%20beet | Sugar beet | A sugar beet is a plant whose root contains a high concentration of sucrose and that is grown commercially for sugar production. In plant breeding, it is known as the Altissima cultivar group of the common beet (Beta vulgaris). Together with other beet cultivars, such as beetroot and chard, it belongs to the subspecies... | Biology and health sciences | Caryophyllales | null |
50263 | https://en.wikipedia.org/wiki/Domain%20of%20a%20function | Domain of a function | In mathematics, the domain of a function is the set of inputs accepted by the function. It is sometimes denoted by or , where is the function. In layman's terms, the domain of a function can generally be thought of as "what x can be".
More precisely, given a function , the domain of is . In modern mathematical lang... | Mathematics | Functions: General | null |
50337 | https://en.wikipedia.org/wiki/Fructose | Fructose | Fructose (), or fruit sugar, is a ketonic simple sugar found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is one of the three dietary monosaccharides, along with glucose and galactose, that are absorbed by the gut directly into the blood of the portal vein during digestion. T... | Biology and health sciences | Biochemistry and molecular biology | null |
50357 | https://en.wikipedia.org/wiki/Larva | Larva | A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase of their life cycle.
A larva's appearance is generally very different from... | Biology and health sciences | Animal ontogeny | null |
50378 | https://en.wikipedia.org/wiki/High-speed%20rail | High-speed rail | High-speed rail (HSR) is a type of rail transport network utilising trains that run significantly faster than those of traditional rail, using an integrated system of specialised rolling stock and dedicated tracks. While there is no single definition or standard that applies worldwide, lines built to handle speeds abov... | Technology | Trains | null |
50397 | https://en.wikipedia.org/wiki/Cerebellum | Cerebellum | The cerebellum (: cerebella or cerebellums; Latin for "little brain") is a major feature of the hindbrain of all vertebrates. Although usually smaller than the cerebrum, in some animals such as the mormyrid fishes it may be as large as it or even larger. In humans, the cerebellum plays an important role in motor contro... | Biology and health sciences | Nervous system | null |
50408 | https://en.wikipedia.org/wiki/Computer%20engineering | Computer engineering | Computer engineering (CoE or CpE) is a branch of electrical engineering that integrates several fields of electrical engineering, electronics engineering and computer science required to develop computer hardware and software. Computer engineering is referred to as Electrical and Computer engineering OR Computer Scienc... | Technology | Disciplines | null |
50416 | https://en.wikipedia.org/wiki/Differential%20calculus | Differential calculus | In mathematics, differential calculus is a subfield of calculus that studies the rates at which quantities change. It is one of the two traditional divisions of calculus, the other being integral calculus—the study of the area beneath a curve.
The primary objects of study in differential calculus are the derivative of... | Mathematics | Calculus and analysis | null |
50425 | https://en.wikipedia.org/wiki/Quantum%20Hall%20effect | Quantum Hall effect | The quantum Hall effect (or integer quantum Hall effect) is a quantized version of the Hall effect which is observed in two-dimensional electron systems subjected to low temperatures and strong magnetic fields, in which the Hall resistance exhibits steps that take on the quantized values
where is the Hall voltage, ... | Physical sciences | Electrodynamics | Physics |
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