id stringlengths 2 8 | url stringlengths 31 117 | title stringlengths 1 71 | text stringlengths 153 118k | topic stringclasses 4
values | section stringlengths 4 49 ⌀ | sublist stringclasses 9
values |
|---|---|---|---|---|---|---|
2840068 | https://en.wikipedia.org/wiki/Fluorosulfuric%20acid | Fluorosulfuric acid | Fluorosulfuric acid (IUPAC name: sulfurofluoridic acid) is the inorganic compound with the chemical formula . It is one of the strongest acids commercially available. It is a tetrahedral molecule and is closely related to sulfuric acid, , substituting a fluorine atom for one of the hydroxyl groups. It is a colourless l... | Physical sciences | Specific acids | Chemistry |
2840108 | https://en.wikipedia.org/wiki/Tropical%20cyclone%20preparedness | Tropical cyclone preparedness | Cyclone mitigation encompasses the actions and planning taken before a tropical cyclone strikes to mitigate damage and injury from the storm. Knowledge of tropical cyclone impacts on an area help plan for future possibilities. Preparedness may involve preparations made by individuals as well as centralized efforts b... | Physical sciences | Storms | Earth science |
2841242 | https://en.wikipedia.org/wiki/Fornax%20Cluster | Fornax Cluster | The Fornax Cluster is a cluster of galaxies lying at a distance of 19 megaparsecs (62 million light-years). It has an estimated mass of solar masses, making it the second richest galaxy cluster within 100 million light-years, after the considerably larger Virgo Cluster. It may be associated with the nearby Eridanus Gr... | Physical sciences | Notable galaxy clusters | Astronomy |
2843057 | https://en.wikipedia.org/wiki/Strain%20%28injury%29 | Strain (injury) | A strain is an acute or chronic soft tissue injury that occurs to a muscle, tendon, or both. The equivalent injury to a ligament is a sprain. Generally, the muscle or tendon overstretches and partially tears, under more physical stress than it can withstand, often from a sudden increase in duration, intensity, or frequ... | Biology and health sciences | Types | Health |
5162226 | https://en.wikipedia.org/wiki/Parareptilia | Parareptilia | Parareptilia ("near-reptiles") is an extinct subclass or clade of basal sauropsids/reptiles, typically considered the sister taxon to Eureptilia (the group that likely contains all living reptiles and birds). Parareptiles first arose near the end of the Carboniferous period and achieved their highest diversity during t... | Biology and health sciences | Parareptilia | Animals |
5165199 | https://en.wikipedia.org/wiki/Pattern%20hair%20loss | Pattern hair loss | Pattern hair loss (also known as androgenetic alopecia (AGA)) is a hair loss condition that primarily affects the top and front of the scalp. In male-pattern hair loss (MPHL), the hair loss typically presents itself as either a receding front hairline, loss of hair on the crown and vertex of the scalp, or a combination... | Biology and health sciences | Health and fitness: General | Health |
1404351 | https://en.wikipedia.org/wiki/Palpation | Palpation | Palpation is the process of using one's hands to check the body, especially while perceiving/diagnosing a disease or illness. Usually performed by a health care practitioner, it is the process of feeling an object in or on the body to determine its size, shape, firmness, or location (for example, a veterinarian can fee... | Biology and health sciences | Diagnostics | Health |
1405654 | https://en.wikipedia.org/wiki/Thermolabile | Thermolabile | Thermolabile refers to a substance which is subject to, decomposition, or change in response to heat. This term is often used
describe biochemical substances.
For example, many bacterial exotoxins are thermolabile and can be easily inactivated by the application of moderate heat.
Enzymes are also thermolabile and los... | Biology and health sciences | Basics | Biology |
1405965 | https://en.wikipedia.org/wiki/Horsecar | Horsecar | A horsecar, horse-drawn tram, horse-drawn streetcar (U.S.), or horse-drawn railway (historical), is an animal-powered (usually horse) tram or streetcar.
Summary
The horse-drawn tram (horsecar) was an early form of public rail transport, which developed out of industrial haulage routes that had long been in existence... | Technology | Animal-powered transport | null |
28923910 | https://en.wikipedia.org/wiki/Electronic%20engineering | Electronic engineering | Electronic engineering is a sub-discipline of electrical engineering that emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current flow. Previously electrical engineering only used passive devices such as mech... | Technology | Disciplines | null |
6786780 | https://en.wikipedia.org/wiki/Light%20pillar | Light pillar | A light pillar or ice pillar is an atmospheric optical phenomenon in which a vertical beam of light appears to extend above and/or below a light source. The effect is created by the reflection of light from tiny ice crystals that are suspended in the atmosphere or that comprise high-altitude clouds (e.g. cirrostratus o... | Physical sciences | Atmospheric optics | Earth science |
30422155 | https://en.wikipedia.org/wiki/Interstellar%20ice | Interstellar ice | Interstellar ice consists of grains of volatiles in the ice phase that form in the interstellar medium. Ice and dust grains form the primary material out of which the Solar System was formed. Grains of ice are found in the dense regions of molecular clouds, where new stars are formed. Temperatures in these regions can ... | Physical sciences | Basics_2 | Astronomy |
37027825 | https://en.wikipedia.org/wiki/International%20yard%20and%20pound | International yard and pound | The international yard and pound are two units of measurement that were the subject of an agreement among representatives of six nations signed on 1 July 1959: Australia, Canada, New Zealand, South Africa, the United Kingdom and the United States. The agreement defined the yard as exactly and the avoirdupois pound as ... | Physical sciences | Measurement systems | Basics and measurement |
37031747 | https://en.wikipedia.org/wiki/Elaeis%20guineensis | Elaeis guineensis | Elaeis guineensis is a species of palm commonly just called oil palm but also sometimes African oil palm or macaw-fat. The first Western person to describe it and bring back seeds was the French naturalist Michel Adanson.
It is native to west and southwest Africa, specifically the area between Angola and The Gambia; t... | Biology and health sciences | Arecales (inc. Palms) | Plants |
24369901 | https://en.wikipedia.org/wiki/Network%20covalent%20bonding | Network covalent bonding | A network solid or covalent network solid (also called atomic crystalline solids or giant covalent structures) is a chemical compound (or element) in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material. In a network solid there are no individual molecules, and the ent... | Physical sciences | Alloys and ceramic compounds | Chemistry |
25784499 | https://en.wikipedia.org/wiki/Iron%20planet | Iron planet | An iron planet is a type of planet that consists primarily of an iron-rich core with little or no mantle. Mercury is the largest celestial body of this type in the Solar System (as the other terrestrial planets are silicate planets), but larger iron-rich exoplanets are called super-Mercuries.
Iron is the sixth most ab... | Physical sciences | Planetary science | Astronomy |
25786928 | https://en.wikipedia.org/wiki/Communicating%20vessels | Communicating vessels | Communicating vessels or communicating vases are a set of containers containing a homogeneous fluid and connected sufficiently far below the top of the liquid: when the liquid settles, it balances out to the same level in all of the containers regardless of the shape and volume of the containers. If additional liquid i... | Physical sciences | Fluid mechanics | Physics |
22841263 | https://en.wikipedia.org/wiki/PSR%20B1937%2B21 | PSR B1937+21 | PSR B1937+21 is a pulsar located in the constellation Vulpecula a few degrees in the sky away from the first discovered pulsar, PSR B1919+21. The name PSR B1937+21 is derived from the word "pulsar" and the declination and right ascension at which it is located, with the "B" indicating that the coordinates are for the 1... | Physical sciences | Notable stars | Astronomy |
2045961 | https://en.wikipedia.org/wiki/Darwin%27s%20frog | Darwin's frog | Darwin's frog (Rhinoderma darwinii), also called the Southern Darwin's frog, is a species of Chilean/Argentinian frog of the family Rhinodermatidae. It was discovered by Charles Darwin during his voyage on HMS Beagle. on a trip to Chile. In 1841, French zoologist André Marie Constant Duméril and his assistant Gabriel B... | Biology and health sciences | Frogs and toads | Animals |
2046416 | https://en.wikipedia.org/wiki/Nuclear%20fuel | Nuclear fuel | Nuclear fuel refers to any substance, typically fissile material, which is used by nuclear power stations or other nuclear devices to generate energy.
Oxide fuel
For fission reactors, the fuel (typically based on uranium) is usually based on the metal oxide; the oxides are used rather than the metals themselves becau... | Technology | Fuel | null |
2049869 | https://en.wikipedia.org/wiki/Ground%20tissue | Ground tissue | The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls. This tissue system is present between the dermal tissue and forms the main bulk of the plant body.
Parenchyma cells have thin primary walls and usually remai... | Biology and health sciences | Plant tissues | null |
2050678 | https://en.wikipedia.org/wiki/Arsinoitherium | Arsinoitherium | Arsinoitherium is an extinct genus of paenungulate mammals belonging to the extinct order Embrithopoda. It is related to elephants, sirenians, and hyraxes. Arsinoitheres were superficially rhinoceros-like herbivores that lived during the Late Eocene and the Early Oligocene of North Africa from 36 to 30 million years ag... | Biology and health sciences | Other afrotheres | Animals |
2051037 | https://en.wikipedia.org/wiki/Environmental%20biotechnology | Environmental biotechnology | Environmental biotechnology is biotechnology that is applied to and used to study the natural environment. Environmental biotechnology could also imply that one try to harness biological process for commercial uses and exploitation. The International Society for Environmental Biotechnology defines environmental biote... | Technology | Biotechnology | null |
2051142 | https://en.wikipedia.org/wiki/Mosasaurus | Mosasaurus | Mosasaurus (; "lizard of the Meuse River") is the type genus (defining example) of the mosasaurs, an extinct group of aquatic squamate reptiles. It lived from about 82 to 66 million years ago during the Campanian and Maastrichtian stages of the Late Cretaceous. The genus was one of the first Mesozoic marine reptiles kn... | Biology and health sciences | Prehistoric squamates | Animals |
21402632 | https://en.wikipedia.org/wiki/Electroencephalography | Electroencephalography | Electroencephalography (EEG)
is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. It is typically non-invasive, with the EEG electrodes place... | Technology | Diagnostic technologies | null |
21402762 | https://en.wikipedia.org/wiki/Ironing | Ironing | Ironing is the use of an iron, usually heated, to remove wrinkles and unwanted creases from fabric. The heating is commonly done to a temperature of , depending on the fabric. Ironing works by loosening the bonds between the long-chain polymer molecules in the fibres of the material. While the molecules are hot, the fi... | Technology | Household appliances | null |
21407814 | https://en.wikipedia.org/wiki/Marinoan%20glaciation | Marinoan glaciation | The Marinoan glaciation, sometimes also known as the Varanger glaciation, was a period of worldwide glaciation.
Its beginning is poorly constrained, but occurred no earlier than 654.5 Ma (million years ago).
It ended approximately 632.3 ± 5.9 Ma
during the Cryogenian period. This glaciation possibly covered the enti... | Physical sciences | Events | Earth science |
5168174 | https://en.wikipedia.org/wiki/Sloth | Sloth | Sloths are a Neotropical group of xenarthran mammals constituting the suborder Folivora, including the extant arboreal tree sloths and extinct terrestrial ground sloths. Noted for their slowness of movement, tree sloths spend most of their lives hanging upside down in the trees of the tropical rainforests of South Amer... | Biology and health sciences | Pilosa | null |
5171924 | https://en.wikipedia.org/wiki/Genet%20%28animal%29 | Genet (animal) | A genet (pronounced or ) is a member of the genus Genetta, which consists of 17 species of small African carnivorans. The common genet is the only genet present in Europe and occurs in the Iberian Peninsula, Italy and France.
Genet fossils from the Late Miocene and later have been found at sites in Ethiopia, Kenya an... | Biology and health sciences | Other carnivora | Animals |
5173456 | https://en.wikipedia.org/wiki/Scalar%20field%20theory | Scalar field theory | In theoretical physics, scalar field theory can refer to a relativistically invariant classical or quantum theory of scalar fields. A scalar field is invariant under any Lorentz transformation.
The only fundamental scalar quantum field that has been observed in nature is the Higgs field. However, scalar quantum fields... | Physical sciences | Particle physics: General | Physics |
3823804 | https://en.wikipedia.org/wiki/Ring%20flip | Ring flip | In organic chemistry, a ring flip (also known as a ring inversion or ring reversal) is the interconversion of cyclic conformers that have equivalent ring shapes (e.g., from a chair conformer to another chair conformer) that results in the exchange of nonequivalent substituent positions. The overall process generally ta... | Physical sciences | Stereochemistry | Chemistry |
27653365 | https://en.wikipedia.org/wiki/Subfossil%20lemur | Subfossil lemur | Subfossil lemurs are lemurs from Madagascar that are represented by recent (subfossil) remains dating from nearly 26,000 years ago to approximately 560 years ago (from the late Pleistocene until the Holocene). They include both extant and extinct species, although the term more frequently refers to the extinct giant le... | Biology and health sciences | Strepsirrhini | Animals |
24377796 | https://en.wikipedia.org/wiki/Geological%20history%20of%20oxygen | Geological history of oxygen | Although oxygen is the most abundant element in Earth's crust, due to its high reactivity it mostly exists in compound (oxide) forms such as water, carbon dioxide, iron oxides and silicates. Before photosynthesis evolved, Earth's atmosphere had no free diatomic elemental oxygen (O2). Small quantities of oxygen were rel... | Physical sciences | Paleoclimate | Earth science |
24383048 | https://en.wikipedia.org/wiki/Cherenkov%20radiation | Cherenkov radiation | Cherenkov radiation () is electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium (such as distilled water) at a speed greater than the phase velocity (speed of propagation of a wavefront in a medium) of light in that medium. A classic example of Cherenkov rad... | Physical sciences | Theory of relativity | Physics |
6800529 | https://en.wikipedia.org/wiki/R136 | R136 | R136 (formerly known as RMC 136 from the Radcliffe Observatory Magellanic Clouds catalogue) is the central concentration of stars in the NGC 2070 star cluster, which lies at the centre of the Tarantula Nebula in the Large Magellanic Cloud. When originally named it was an unresolved stellar object (catalogued as HD 382... | Physical sciences | Notable star clusters | Astronomy |
915215 | https://en.wikipedia.org/wiki/Wide-gamut%20RGB%20color%20space | Wide-gamut RGB color space | The wide-gamut RGB color space (or Adobe Wide Gamut RGB) is a color space developed by Adobe Systems, that offers a large gamut by using pure spectral primary colors.
It is able to store a wider range of color values than sRGB or Adobe RGB color spaces. As a comparison, the wide-gamut RGB color space encompasses 77.6% ... | Physical sciences | Basics | Physics |
915258 | https://en.wikipedia.org/wiki/Sheep%20farming | Sheep farming | Sheep farming or sheep husbandry is the raising and breeding of domestic sheep. It is a branch of animal husbandry. Sheep are raised principally for their meat (lamb and mutton), milk (sheep's milk), and fiber (wool). They also yield sheepskin and parchment.
Sheep can be raised in a range of temperate climates, includ... | Technology | Animal husbandry | null |
916571 | https://en.wikipedia.org/wiki/Tide%20pool | Tide pool | A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. These pools typically range from a few inches to a few feet deep and a few feet across. Many of these pools exist as separate bodies of water only at low tide, as seawater gets trapped when the tide recedes. Tides are cause... | Physical sciences | Oceanography | Earth science |
916971 | https://en.wikipedia.org/wiki/Nuclear%20marine%20propulsion | Nuclear marine propulsion | Nuclear marine propulsion is propulsion of a ship or submarine with heat provided by a nuclear reactor. The power plant heats water to produce steam for a turbine used to turn the ship's propeller through a gearbox or through an electric generator and motor. Nuclear propulsion is used primarily within naval warships su... | Technology | Power generation | null |
917400 | https://en.wikipedia.org/wiki/Potassium%20alum | Potassium alum | Potassium alum, potash alum, or potassium aluminium sulfate is a chemical compound first mentioned under various Sanskrit names in Ayurvedic medicinal texts such as , , and ; is chemically defined as the double sulfate of potassium and aluminium, with chemical formula KAl(SO4)2. It is commonly encountered as the dodec... | Physical sciences | Sulfuric oxyanions | Chemistry |
918643 | https://en.wikipedia.org/wiki/Washer%20%28hardware%29 | Washer (hardware) | A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring (Belleville washer, wave washer), wear pad, preload indicating device, locking devic... | Technology | Rigid components | null |
2848344 | https://en.wikipedia.org/wiki/Circuit%20design | Circuit design | In Electrical Engineering, the process of circuit design can cover systems ranging from complex electronic systems down to the individual transistors within an integrated circuit. One person can often do the design process without needing a planned or structured design process for simple circuits. Still, teams of desi... | Technology | Basics_4 | null |
2848730 | https://en.wikipedia.org/wiki/Cosmological%20horizon | Cosmological horizon | A cosmological horizon is a measure of the distance from which one could possibly retrieve information. This observable constraint is due to various properties of general relativity, the expanding universe, and the physics of Big Bang cosmology. Cosmological horizons set the size and scale of the observable universe. T... | Physical sciences | Physical cosmology | Astronomy |
2849297 | https://en.wikipedia.org/wiki/Oppositional%20defiant%20disorder | Oppositional defiant disorder | Oppositional defiant disorder (ODD) is listed in the DSM-5 under Disruptive, impulse-control, and conduct disorders and defined as "a pattern of angry/irritable mood, argumentative/defiant behavior, or vindictiveness." This behavior is usually targeted toward peers, parents, teachers, and other authority figures, incl... | Biology and health sciences | Mental disorders | Health |
2851214 | https://en.wikipedia.org/wiki/Absolute%20dating | Absolute dating | Absolute dating is the process of determining an age on a specified chronology in archaeology and geology. Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty of accuracy. Absolute dating provides a numerical age or range, in contrast with re... | Physical sciences | Geochronology | Earth science |
31516478 | https://en.wikipedia.org/wiki/Frozen%20orbit | Frozen orbit | In orbital mechanics, a frozen orbit is an orbit for an artificial satellite in which perturbations have been minimized by careful selection of the orbital parameters. Perturbations can result from natural drifting due to the central body's shape, or other factors. Typically, the altitude of a satellite in a frozen orb... | Physical sciences | Orbital mechanics | Astronomy |
20373503 | https://en.wikipedia.org/wiki/Yttrium | Yttrium | Yttrium is a chemical element; it has symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals and is never found i... | Physical sciences | Chemical elements_2 | null |
20381199 | https://en.wikipedia.org/wiki/Megalictis | Megalictis | Megalictis (meaning "great weasel") is an extinct genus of large predatory mustelids that existed in North America during the "cat gap" from the Late Arikareean (Ar4) in the Miocene epoch. It is thought to have resembled a huge, jaguar-sized ferret, weighing up to .
History of discovery
The genus Megalictis was first ... | Biology and health sciences | Mustelidae | Animals |
1407416 | https://en.wikipedia.org/wiki/Environmental%20resource%20management | Environmental resource management | Environmental resource management or environmental management is the management of the interaction and impact of human societies on the environment. It is not, as the phrase might suggest, the management of the environment itself. Environmental resources management aims to ensure that ecosystem services are protected a... | Physical sciences | Earth science basics: General | Earth science |
1408929 | https://en.wikipedia.org/wiki/Metagenomics | Metagenomics | Metagenomics is the study of genetic material recovered directly from environmental or clinical samples by a method called sequencing. The broad field may also be referred to as environmental genomics, ecogenomics, community genomics or microbiomics.
While traditional microbiology and microbial genome sequencing and g... | Biology and health sciences | Genetics | Biology |
1408983 | https://en.wikipedia.org/wiki/Hill | Hill | A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, and is usually applied to peaks which are above elevation compared to the relative landmass, though not as prominent as mountains. Hills fall under the category of slope landforms.
Terminology
The distinction between a hi... | Physical sciences | Landforms | null |
1409006 | https://en.wikipedia.org/wiki/Common%20knowledge%20%28logic%29 | Common knowledge (logic) | Common knowledge is a special kind of knowledge for a group of agents. There is common knowledge of p in a group of agents G when all the agents in G know p, they all know that they know p, they all know that they all know that they know p, and so on ad infinitum. It can be denoted as .
The concept was first introduce... | Mathematics | Game theory | null |
1409767 | https://en.wikipedia.org/wiki/High-intensity%20interval%20training | High-intensity interval training | High-intensity interval training (HIIT) is a training protocol alternating short periods of intense or explosive anaerobic exercise with brief recovery periods until the point of exhaustion. HIIT involves exercises performed in repeated quick bursts at maximum or near maximal effort with periods of rest or low activity... | Biology and health sciences | Physical fitness | Health |
1409922 | https://en.wikipedia.org/wiki/Incertae%20sedis | Incertae sedis | or is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by (of uncertain family), (of uncertain suborder), (o... | Biology and health sciences | Phylogenetics and taxonomy | Biology |
1410775 | https://en.wikipedia.org/wiki/Bok%20globule | Bok globule | In astronomy, Bok globules are isolated and relatively small dark nebulae containing dense cosmic dust and gas from which star formation may take place. Bok globules are found within H II regions, and typically have a mass of about two to 50 solar masses contained within a region about a light year or so across (about ... | Physical sciences | Basics_2 | Astronomy |
1411100 | https://en.wikipedia.org/wiki/Introduction%20to%20general%20relativity | Introduction to general relativity | General relativity is a theory of gravitation developed by Albert Einstein between 1907 and 1915. The theory of general relativity says that the observed gravitational effect between masses results from their warping of spacetime.
By the beginning of the 20th century, Newton's law of universal gravitation had been acc... | Physical sciences | Theory of relativity | Physics |
28945767 | https://en.wikipedia.org/wiki/Pre-stellar%20core | Pre-stellar core | Pre-stellar cores are the nurseries of new stars, and are an early phase in the formation of low-mass stars, before gravitational collapse produces a central protostar. The spatial distribution of pre-stellar cores shows the history of their formation, and their sensitivity to the physics controlling their creation.
M... | Physical sciences | Stellar astronomy | Astronomy |
33022390 | https://en.wikipedia.org/wiki/Sky%20blue | Sky blue | Sky blue refers to a collection of shades comparable to that of a clear daytime sky. Typically it is a shade of cyan or light teal, though some iterations are closer to light blue. The term (as "sky blew") is attested from 1681. A 1585 translation of Nicolas de Nicolay's 1576 includes "the tulbant [turban] of the merc... | Physical sciences | Colors | Physics |
2052205 | https://en.wikipedia.org/wiki/Job%27s%20tears | Job's tears | Job's tears (Coix lacryma-jobi), also known as adlay or adlay millet, is a tall grain-bearing perennial tropical plant of the family Poaceae (grass family). It is native to Southeast Asia and introduced to Northern China and India in remote antiquity, and elsewhere cultivated in gardens as an annual. It has been natur... | Biology and health sciences | Grains | Plants |
2053015 | https://en.wikipedia.org/wiki/Manganate | Manganate | In inorganic nomenclature, a manganate is any negatively charged molecular entity with manganese as the central atom. However, the name is usually used to refer to the tetraoxidomanganate(2−) anion, MnO, also known as manganate(VI) because it contains manganese in the +6 oxidation state. Manganates are the only known m... | Physical sciences | Metallic oxyanions | Chemistry |
2054313 | https://en.wikipedia.org/wiki/Leaellynasaura | Leaellynasaura | Leaellynasaura (meaning "Leaellyn's lizard") is a genus of small herbivorous ornithischian dinosaurs from the late Aptian to early Albian stage of the Early Cretaceous, around 118-110 million years ago. It was first discovered in Dinosaur Cove, Australia. The only known species is Leaellynasaura amicagraphica. It was d... | Biology and health sciences | Ornitischians | Animals |
2054480 | https://en.wikipedia.org/wiki/Calcium%20sulfide | Calcium sulfide | Calcium sulfide is the chemical compound with the formula CaS. This white material crystallizes in cubes like rock salt. CaS has been studied as a component in a process that would recycle gypsum, a product of flue-gas desulfurization. Like many salts containing sulfide ions, CaS typically has an odour of H2S, which ... | Physical sciences | Sulfide salts | Chemistry |
2056572 | https://en.wikipedia.org/wiki/Marine%20life | Marine life | Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, plants, algae, fungi, protists, single-celled microorganisms and associated viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of c... | Physical sciences | Oceanography | Earth science |
6807932 | https://en.wikipedia.org/wiki/Minimum-cost%20flow%20problem | Minimum-cost flow problem | The minimum-cost flow problem (MCFP) is an optimization and decision problem to find the cheapest possible way of sending a certain amount of flow through a flow network. A typical application of this problem involves finding the best delivery route from a factory to a warehouse where the road network has some capacity... | Mathematics | Graph theory | null |
35715231 | https://en.wikipedia.org/wiki/Human%E2%80%93animal%20breastfeeding | Human–animal breastfeeding | Human to animal breastfeeding has been practiced in some different cultures during various time periods. The practice of breastfeeding or suckling between humans and other species occurred in both directions: women sometimes breastfed young animals, and animals were used to suckle babies and children. Animals were used... | Biology and health sciences | Health and fitness: General | Health |
3826112 | https://en.wikipedia.org/wiki/Sub-brown%20dwarf | Sub-brown dwarf | A sub-brown dwarf or planetary-mass brown dwarf is an astronomical object that formed in the same manner as stars and brown dwarfs (i.e. through the collapse of a gas cloud) but that has a planetary mass, therefore by definition below the limiting mass for thermonuclear fusion of deuterium (about ).
Some researchers in... | Physical sciences | Stellar astronomy | Astronomy |
3827863 | https://en.wikipedia.org/wiki/Pollucite | Pollucite | Pollucite is a zeolite mineral with the formula with iron, calcium, rubidium and potassium as common substituting elements. It is important as a significant ore of caesium and sometimes rubidium. It forms a solid solution series with analcime. It crystallizes in the isometric-hexoctahedral crystal system as colorless,... | Physical sciences | Silicate minerals | Earth science |
3829005 | https://en.wikipedia.org/wiki/Reddit | Reddit | Reddit () is an American social news aggregation, content rating, and forum social network. Registered users (commonly referred to as "Redditors") submit content to the site such as links, text posts, images, and videos, which are then voted up or down ("upvoted" or "downvoted") by other members. Posts are organized by... | Technology | Social network and blogging | null |
3829190 | https://en.wikipedia.org/wiki/Hand%20sanitizer | Hand sanitizer | Hand sanitizer (also known as hand antiseptic, hand disinfectant, hand rub, or handrub) is a liquid, gel, or foam used to kill viruses, bacteria, and other microorganisms on the hands. It can also come in the form of a cream, spray, or wipe. While hand washing with soap and water is generally preferred, hand sanitizer ... | Biology and health sciences | Hygiene products | Health |
3830863 | https://en.wikipedia.org/wiki/Bateleur | Bateleur | The bateleur (; Terathopius ecaudatus), also known as the bateleur eagle, is a medium-sized eagle in the family Accipitridae. It is often considered a relative of the snake eagles and, like them, it is classified within the subfamily Circaetinae. It is the only member of the genus Terathopius and may be the origin of t... | Biology and health sciences | Accipitrimorphae | Animals |
3831878 | https://en.wikipedia.org/wiki/Lupin%20bean | Lupin bean | Lupin are the yellow legume seeds of the genus Lupinus. They are traditionally eaten as a pickled snack food, primarily in the Mediterranean basin (L. albus), Latin America (L. mutabilis) and North Africa (L. angustifolius). The most ancient evidence of lupin is from ancient Egypt, dating back to the 22nd century BC. T... | Biology and health sciences | Pulses | Plants |
2852964 | https://en.wikipedia.org/wiki/John%20Dory | John Dory | John Dory, St Pierre, or Peter's fish, refers to fish of the genus Zeus, especially Zeus faber, of widespread distribution. It is an edible demersal coastal marine fish with a laterally compressed olive-yellow body which has a large dark spot, and long spines on the dorsal fin. Its large eyes at the front of the head p... | Biology and health sciences | Acanthomorpha | Animals |
2853861 | https://en.wikipedia.org/wiki/Anomalocaris | Anomalocaris | Anomalocaris ("unlike other shrimp", or "abnormal shrimp") is an extinct genus of radiodont, an order of early-diverging stem-group marine arthropods.
It is best known from the type species A. canadensis, found in the Stephen Formation (particularly the Burgess Shale) of British Columbia, Canada. The other named speci... | Biology and health sciences | Fossil arthropods | Animals |
2855554 | https://en.wikipedia.org/wiki/IMDb | IMDb | IMDb (an initialism for Internet Movie Database) is an online database of information related to films, television series, podcasts, home videos, video games, and streaming content online – including cast, production crew and personal biographies, plot summaries, trivia, ratings, and fan and critical reviews. IMDb bega... | Technology | Utility | null |
2856239 | https://en.wikipedia.org/wiki/Chelodina | Chelodina | Chelodina, collectively known as snake-necked turtles, is a large and diverse genus of long-necked chelid turtles with a complicated nomenclatural history. Although in the past, Macrochelodina and Macrodiremys have been considered separate genera and prior to that all the same, they are now considered subgenera of the ... | Biology and health sciences | Turtles | Animals |
2857516 | https://en.wikipedia.org/wiki/Thermoplasma | Thermoplasma | Thermoplasma is a genus of archaeans. It belongs to the class Thermoplasmata, which thrive in acidic and high-temperature environments. Thermoplasma are facultative anaerobes and respire using sulfur and organic carbon. They do not contain a cell wall but instead contain a unique membrane composed mainly of a tetrae... | Biology and health sciences | Archaea | Plants |
31522012 | https://en.wikipedia.org/wiki/Grand%20Ethiopian%20Renaissance%20Dam | Grand Ethiopian Renaissance Dam | The Grand Ethiopian Renaissance Dam (GERD or TaIHiGe; , , ), formerly known as the Millennium Dam and sometimes referred to as the Hidase Dam (, ), is a gravity dam on the Blue Nile River in Ethiopia. The dam is in the Benishangul-Gumuz Region of Ethiopia, about east of the border with Sudan.
Constructed between 2011... | Technology | Dams | null |
1413873 | https://en.wikipedia.org/wiki/Bergamot%20orange | Bergamot orange | Citrus bergamia, the bergamot orange (pronounced ), is a fragrant citrus fruit the size of an orange, with a yellow or green colour similar to a lime, depending on ripeness.
Genetic research into the ancestral origins of extant citrus cultivars found bergamot orange to be a probable hybrid of lemon (itself a hybrid be... | Biology and health sciences | Citrus fruits | Plants |
1415135 | https://en.wikipedia.org/wiki/Dimethylformamide | Dimethylformamide | Dimethylformamide, DMF is an organic compound with the chemical formula . Its structure is . Commonly abbreviated as DMF (although this initialism is sometimes used for dimethylfuran, or dimethyl fumarate), this colourless liquid is miscible with water and the majority of organic liquids. DMF is a common solvent for ch... | Physical sciences | Amides and amines | Chemistry |
1415891 | https://en.wikipedia.org/wiki/Tectonic%20uplift | Tectonic uplift | Tectonic uplift is the geologic uplift of Earth's surface that is attributed to plate tectonics. While isostatic response is important, an increase in the mean elevation of a region can only occur in response to tectonic processes of crustal thickening (such as mountain building events), changes in the density distribu... | Physical sciences | Tectonics | Earth science |
1417149 | https://en.wikipedia.org/wiki/Internal%20structure%20of%20Earth | Internal structure of Earth | The internal structure of Earth are the layers of the Earth, excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere, and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core.
Scientific under... | Physical sciences | Earth science | null |
22881320 | https://en.wikipedia.org/wiki/Sapsan | Sapsan | The Sapsan ( ), also known as Velaro RUS EVS, is a Russian gauge high speed electric express train. The train is a Siemens Velaro model, which in turn is based on the ICE 3M/F high-speed trains manufactured by Siemens for the German Deutsche Bahn (DB).
The trains started regular service on the Saint Petersburg–Moscow ... | Technology | High-speed rail | null |
37063005 | https://en.wikipedia.org/wiki/Effects%20of%20climate%20change%20on%20human%20health | Effects of climate change on human health | The effects of climate change on human health are profound because they increase heat-related illnesses and deaths, respiratory diseases, and the spread of infectious diseases. There is widespread agreement among researchers, health professionals and organizations that climate change is the biggest global health threat... | Physical sciences | Climate change | Earth science |
919834 | https://en.wikipedia.org/wiki/Banteng | Banteng | The banteng (Bos javanicus; ), also known as tembadau, is a species of wild bovine found in Southeast Asia.
The head-and-body length is between . Wild banteng are typically larger and heavier than their domesticated counterparts, but are otherwise similar in appearance. The banteng shows extensive sexual dimorphism; ... | Biology and health sciences | Bovidae | Animals |
920702 | https://en.wikipedia.org/wiki/Binary%20file | Binary file | A binary file is a computer file that is not a text file. The term "binary file" is often used as a term meaning "non-text file". Many binary file formats contain parts that can be interpreted as text; for example, some computer document files containing formatted text, such as older Microsoft Word document files, cont... | Technology | Data storage and memory | null |
921100 | https://en.wikipedia.org/wiki/Nutrient%20management | Nutrient management | Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport of nutrients (f... | Technology | Agronomical techniques | null |
921148 | https://en.wikipedia.org/wiki/Ring%20finger | Ring finger | The ring finger, third finger, fourth finger, leech finger, or annulary is the fourth digit of the human hand, located between the middle finger and the little finger.
Sometimes the term ring finger only refers to the fourth digit of a left-hand, so named for its traditional association with wedding rings in many soci... | Biology and health sciences | Human anatomy | Health |
921168 | https://en.wikipedia.org/wiki/Scale%20factor%20%28cosmology%29 | Scale factor (cosmology) | The expansion of the universe is parametrized by a dimensionless scale factor . Also known as the cosmic scale factor or sometimes the Robertson–Walker scale factor, this is a key parameter of the Friedmann equations.
In the early stages of the Big Bang, most of the energy was in the form of radiation, and that radia... | Physical sciences | Physical cosmology | Astronomy |
921245 | https://en.wikipedia.org/wiki/List%20of%20interstellar%20and%20circumstellar%20molecules | List of interstellar and circumstellar molecules | This is a list of molecules that have been detected in the interstellar medium and circumstellar envelopes, grouped by the number of component atoms. The chemical formula is listed for each detected compound, along with any ionized form that has also been observed.
Background
The molecules listed below were detected ... | Physical sciences | Astronomy basics | Astronomy |
921432 | https://en.wikipedia.org/wiki/Barred%20spiral%20galaxy | Barred spiral galaxy | A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in about two thirds of all spiral galaxies in the local universe, and generally affect both the motions of stars and interstellar gas within spiral galaxies and can affect spiral arms as well. The Milky Way G... | Physical sciences | Galaxy morphological classification | null |
921525 | https://en.wikipedia.org/wiki/Maxwell%20relations | Maxwell relations | Maxwell's relations are a set of equations in thermodynamics which are derivable from the symmetry of second derivatives and from the definitions of the thermodynamic potentials. These relations are named for the nineteenth-century physicist James Clerk Maxwell.
Equations
The structure of Maxwell relations is a state... | Physical sciences | Thermodynamics | Physics |
922083 | https://en.wikipedia.org/wiki/Flannel | Flannel | Flannel is a soft woven fabric, of varying fineness. Flannel was originally made from carded wool or worsted yarn, but is now often made from either wool, cotton, or synthetic fiber. Flannel is commonly used to make tartan clothing, blankets, bed sheets, sleepwear, and several other uses.
Flannel may be brushed to cre... | Technology | Fabrics and fibers | null |
922371 | https://en.wikipedia.org/wiki/Burping | Burping | Burping (also called belching and eructation) is the release of gas from the upper digestive tract (esophagus and stomach) of animals through the mouth. It is always audible.
In humans, burping can be caused by normal eating processes, or as a side effect of other medical conditions. There is a range of levels of soci... | Biology and health sciences | Basics | Biology |
922392 | https://en.wikipedia.org/wiki/Rhizaria | Rhizaria | The Rhizaria are a diverse and species-rich supergroup of mostly unicellular eukaryotes. Except for the Chlorarachniophytes and three species in the genus Paulinella in the phylum Cercozoa, they are all non-photosynthetic, but many Foraminifera and Radiolaria have a symbiotic relationship with unicellular algae. A mult... | Biology and health sciences | Other organisms | null |
922554 | https://en.wikipedia.org/wiki/Discharge%20%28hydrology%29 | Discharge (hydrology) | In hydrology, discharge is the volumetric flow rate (volume per time, in units of m3/h or ft3/h) of a stream. It equals the product of average flow velocity (with dimension of length per time, in m/h or ft/h) and the cross-sectional area (in m2 or ft2). It includes any suspended solids (e.g. sediment), dissolved chemic... | Physical sciences | Hydrology | Earth science |
922567 | https://en.wikipedia.org/wiki/Fermi%27s%20golden%20rule | Fermi's golden rule | In quantum physics, Fermi's golden rule is a formula that describes the transition rate (the probability of a transition per unit time) from one energy eigenstate of a quantum system to a group of energy eigenstates in a continuum, as a result of a weak perturbation. This transition rate is effectively independent of t... | Physical sciences | Quantum mechanics | Physics |
2061417 | https://en.wikipedia.org/wiki/Dubai%20Metro | Dubai Metro | The Dubai Metro () is a rapid transit system in the city of Dubai, United Arab Emirates. The metro system consists of a network of two main lines: the Red Line and the Green Line. A third line, the Blue Line, is scheduled to open in 2029.
Dubai Metro is the first rapid transit train network in the Arabian Peninsula an... | Technology | Asia_2 | null |
5193704 | https://en.wikipedia.org/wiki/Chianina | Chianina | The Chianina () is an Italian breed of large white cattle. It was formerly principally a draught breed; it is now raised mainly for beef. It is the largest and one of the oldest cattle breeds in the world. The bistecca alla fiorentina is produced from its meat.
History
The Chianina is one of the oldest breeds of cat... | Biology and health sciences | Cattle | Animals |
25828666 | https://en.wikipedia.org/wiki/Cro-Magnon | Cro-Magnon | Cro-Magnons or European early modern humans (EEMH) were the first early modern humans (Homo sapiens) to settle in Europe, migrating from western Asia, continuously occupying the continent possibly from as early as 56,800 years ago. They interacted and interbred with the indigenous Neanderthals (H. neanderthalensis) of ... | Biology and health sciences | Evolution | null |
21435575 | https://en.wikipedia.org/wiki/Ice%E2%80%93albedo%20feedback | Ice–albedo feedback | Ice–albedo feedback is a climate change feedback, where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of a planet. Because ice is very reflective, it reflects far more solar energy back to space than open water or any other land cover. It occurs on Earth, and can also... | Physical sciences | Climate change | Earth science |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.