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57421 | https://en.wikipedia.org/wiki/Capsaicin | Capsaicin | Capsaicin (8-methyl-N-vanillyl-6-nonenamide) (, rarely ) is an active component of chili peppers, which are plants belonging to the genus Capsicum. It is a potent irritant for mammals, including humans, and produces a sensation of burning in any tissue with which it comes into contact. Capsaicin and several related ami... | Physical sciences | Alkaloids | Chemistry |
57500 | https://en.wikipedia.org/wiki/Antler | Antler | Antlers are extensions of an animal's skull found in members of the Cervidae (deer) family. Antlers are a single structure composed of bone, cartilage, fibrous tissue, skin, nerves, and blood vessels. They are generally found only on males, with the exception of reindeer/caribou. Antlers are shed and regrown each year ... | Biology and health sciences | Skeletal system | Biology |
57522 | https://en.wikipedia.org/wiki/Einkorn | Einkorn | Einkorn wheat (from German Einkorn, literally "single grain") is either a wild species of wheat (Triticum) or its domesticated form. The wild form is T. boeoticum (syn. T. m. subsp. boeoticum), and the domesticated form is T. monococcum (syn. T. m. subsp. monococcum). Einkorn is a diploid species (2n = 14 chromosomes) ... | Biology and health sciences | Grains | Plants |
57546 | https://en.wikipedia.org/wiki/Caenorhabditis%20elegans | Caenorhabditis elegans | Caenorhabditis elegans () is a free-living transparent nematode about 1 mm in length that lives in temperate soil environments. It is the type species of its genus. The name is a blend of the Greek caeno- (recent), rhabditis (rod-like) and Latin elegans (elegant). In 1900, Maupas initially named it Rhabditides elegans.... | Biology and health sciences | Ecdysozoa | null |
57547 | https://en.wikipedia.org/wiki/Xenopus | Xenopus | Xenopus () (Gk., ξενος, xenos = strange, πους, pous = foot, commonly known as the clawed frog) is a genus of highly aquatic frogs native to sub-Saharan Africa. Twenty species are currently described within it. The two best-known species of this genus are Xenopus laevis and Xenopus tropicalis, which are commonly studie... | Biology and health sciences | Frogs and toads | Animals |
57559 | https://en.wikipedia.org/wiki/Predation | Predation | Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from... | Biology and health sciences | Ethology | null |
57621 | https://en.wikipedia.org/wiki/Dragonfly | Dragonfly | A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threatens dragonfly populations around the world. Adult dragonflies are characterised by... | Biology and health sciences | Odonata | null |
57624 | https://en.wikipedia.org/wiki/Multituberculata | Multituberculata | Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct order of rodent-like mammals with a fossil record spanning over 130 million years. They first appeared in the Middle Jurassic, and reached a peak diversity during the Late Cretaceous and Paleocene. They... | Biology and health sciences | Stem-mammals | Animals |
57630 | https://en.wikipedia.org/wiki/Monsoon | Monsoon | A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal oscillation of the Intertropical Convergence Zone (ITCZ) between its limits to the no... | Physical sciences | Winds | null |
57688 | https://en.wikipedia.org/wiki/Anxiety%20disorder | Anxiety disorder | Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause physical and cognitive symptoms, such as restlessness, irritability, easy fatigue... | Biology and health sciences | Mental disorder | null |
57713 | https://en.wikipedia.org/wiki/Dermatitis | Dermatitis | Dermatitis is a term used for different types of skin inflammation, typically characterized by itchiness, redness and a rash. In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened. The area of skin involved can vary from small to covering the entire body. Dermat... | Biology and health sciences | Specific diseases | Health |
57759 | https://en.wikipedia.org/wiki/Biophoton | Biophoton | Biophotons (from the Greek βίος meaning "life" and φῶς meaning "light") are photons of light in the ultraviolet and low visible light range that are produced by a biological system. They are non-thermal in origin, and the emission of biophotons is technically a type of bioluminescence, though the term "bioluminescence... | Physical sciences | Bosons | Physics |
57762 | https://en.wikipedia.org/wiki/Psychiatric%20medication | Psychiatric medication | A psychiatric or psychotropic medication is a psychoactive drug taken to exert an effect on the chemical makeup of the brain and nervous system. Thus, these medications are used to treat mental illnesses. These medications are typically made of synthetic chemical compounds and are usually prescribed in psychiatric sett... | Biology and health sciences | Psychiatric drugs | Health |
57763 | https://en.wikipedia.org/wiki/Aerosol | Aerosol | An aerosol is a suspension of fine solid particles or liquid droplets in air or another gas. Aerosols can be generated from natural or human causes. The term aerosol commonly refers to the mixture of particulates in air, and not to the particulate matter alone. Examples of natural aerosols are fog, mist or dust. Exampl... | Physical sciences | Chemical mixtures: General | null |
57866 | https://en.wikipedia.org/wiki/Kudzu | Kudzu | Kudzu (), also called Japanese arrowroot or Chinese arrowroot, is a group of climbing, coiling, and trailing deciduous perennial vines native to much of East Asia, Southeast Asia, and some Pacific islands. It is invasive in many parts of the world, primarily North America.
The vine densely climbs over other plants and... | Biology and health sciences | Fabales | Plants |
57875 | https://en.wikipedia.org/wiki/Soap | Soap | Soap is a salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. In a domestic setting, soaps, specifically "toilet soaps", are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are use... | Technology | Food, water and health | null |
57877 | https://en.wikipedia.org/wiki/Sodium%20hydroxide | Sodium hydroxide | Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula . It is a white solid ionic compound consisting of sodium cations and hydroxide anions .
Sodium hydroxide is a highly corrosive base and alkali that decomposes lipids and proteins at ambient temperatures and may cause seve... | Physical sciences | Inorganic compounds | null |
57880 | https://en.wikipedia.org/wiki/In%20vitro%20fertilisation | In vitro fertilisation | In vitro fertilisation (IVF) is a process of fertilisation in which an egg is combined with sperm in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process, then removing an ovum or ova (egg or eggs) from her ovaries and enabling a man's sperm to fertilise them in a culture medi... | Biology and health sciences | Health and fitness: General | Health |
57893 | https://en.wikipedia.org/wiki/Ficus | Ficus | Ficus ( or ) is a genus of about 850 species of woody trees, shrubs, vines, epiphytes and hemiepiphytes in the family Moraceae. Collectively known as fig trees or figs, they are native throughout the tropics with a few species extending into the semi-warm temperate zone. The common fig (F. carica) is a temperate specie... | Biology and health sciences | Rosales | Plants |
57925 | https://en.wikipedia.org/wiki/Pituitary%20gland | Pituitary gland | The pituitary gland or hypophysis is an endocrine gland in vertebrates. In humans, the pituitary gland is located at the base of the brain, protruding off the bottom of the hypothalamus. The human pituitary gland is oval shaped, about 1 cm in diameter, in weight on average, and about the size of a kidney bean.
There ... | Biology and health sciences | Endocrine system | Biology |
57947 | https://en.wikipedia.org/wiki/Theobroma%20cacao | Theobroma cacao | Theobroma cacao (cacao tree or cocoa tree) is a small ( tall) evergreen tree in the family Malvaceae. Its seeds - cocoa beans - are used to make chocolate liquor, cocoa solids, cocoa butter and chocolate. Although the tree is native to the tropics of the Americas, the largest producer of cocoa beans in 2022 was Ivory ... | Biology and health sciences | Malvales | Plants |
57965 | https://en.wikipedia.org/wiki/Moraceae | Moraceae | The Moraceae—often called the mulberry family or fig family—are a family of flowering plants comprising about 38 genera and over 1100 species. Most are widespread in tropical and subtropical regions, less so in temperate climates; however, their distribution is cosmopolitan overall. The only synapomorphy within the Mor... | Biology and health sciences | Rosales | null |
57980 | https://en.wikipedia.org/wiki/Shortwave%20radio | Shortwave radio | Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (approximately 100 to 10 metres in wavelength). It lies between the medium frequency ba... | Technology | Broadcasting | null |
57986 | https://en.wikipedia.org/wiki/Gladius | Gladius | Gladius () is a Latin word properly referring to the type of sword that was used by ancient Roman foot soldiers starting from the 3rd century BC and until the 3rd century AD. Linguistically, within Latin, the word also came to mean "sword", regardless of the type used.
Early ancient Roman swords were similar to those... | Technology | Swords | null |
58005 | https://en.wikipedia.org/wiki/Airship | Airship | An airship, dirigible balloon or dirigible is a type of aerostat (lighter-than-air) aircraft that can navigate through the air flying under its own power. Aerostats use buoyancy from a lifting gas that is less dense than the surrounding air to achieve the lift needed to stay airborne.
In early dirigibles, the lifting ... | Technology | Aviation | null |
58017 | https://en.wikipedia.org/wiki/Microwave%20oven | Microwave oven | A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating. Microwave ovens heat foods quickly and ... | Technology | Household appliances | null |
58041 | https://en.wikipedia.org/wiki/Bromeliaceae | Bromeliaceae | The Bromeliaceae (the bromeliads) are a family of monocot flowering plants of about 80 genera and 3700 known species, native mainly to the tropical Americas, with several species found in the American subtropics and one in tropical west Africa, Pitcairnia feliciana.
It is among the basal families within the Poales and... | Biology and health sciences | Poales | null |
58046 | https://en.wikipedia.org/wiki/Figure-eight%20knot | Figure-eight knot | The figure-eight knot or figure-of-eight knot is a type of stopper knot. It is very important in both sailing and rock climbing as a method of stopping ropes from running out of retaining devices. Like the overhand knot, which will jam under strain, often requiring the rope to be cut, the figure-eight will also jam, bu... | Technology | Flexible components | null |
58134 | https://en.wikipedia.org/wiki/Proterozoic | Proterozoic | The Proterozoic ( ) is the third of the four geologic eons of Earth's history, spanning the time interval from 2500 to 538.8Mya, and is the longest eon of Earth's geologic time scale. It is preceded by the Archean and followed by the Phanerozoic, and is the most recent part of the Precambrian "supereon".
The Proterozo... | Physical sciences | Geological timescale | Earth science |
58161 | https://en.wikipedia.org/wiki/Dust%20devil | Dust devil | A dust devil (also known regionally as a dirt devil) is a strong, well-formed, and relatively short-lived whirlwind. Its size ranges from small (18 in/half a metre wide and a few yards/metres tall) to large (more than 30 ft/10 m wide and more than half a mile/1 km tall). The primary vertical motion is upward. Dust devi... | Physical sciences | Storms | Earth science |
58246 | https://en.wikipedia.org/wiki/Nitrocellulose | Nitrocellulose | Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, pyroxylin and flash string, depending on form) is a highly flammable compound formed by nitrating cellulose through exposure to a mixture of nitric acid and sulfuric acid. One of its first major uses was as guncotton, a replacement f... | Physical sciences | Amides and amines | Chemistry |
58256 | https://en.wikipedia.org/wiki/Wax | Wax | Waxes are a diverse class of organic compounds that are lipophilic, malleable solids near ambient temperatures. They include higher alkanes and lipids, typically with melting points above about 40 °C (104 °F), melting to give low viscosity liquids. Waxes are insoluble in water but soluble in nonpolar organic solvents ... | Physical sciences | Hydrocarbons | Chemistry |
58261 | https://en.wikipedia.org/wiki/Honey%20bee | Honey bee | A honey bee (often misspelled honeybee, akin to writing carpenterbee instead of carpenter bee) is a eusocial flying insect within the genus Apis of the bee clade, all native to mainland Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmopolitan distri... | Biology and health sciences | Hymenoptera | Animals |
58264 | https://en.wikipedia.org/wiki/Fig%20wasp | Fig wasp | Fig wasps are wasps of the superfamily Chalcidoidea which spend their larval stage inside fig syconia. Some are pollinators but others simply feed off the plant. The non-pollinators belong to several groups within the superfamily Chalcidoidea, while the pollinators are in the family Agaonidae. Pollinating fig wasps are... | Biology and health sciences | Hymenoptera | Animals |
58288 | https://en.wikipedia.org/wiki/Louse | Louse | Louse (: lice) is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research.
Lice are obligate parasites, living ex... | Biology and health sciences | Insects and other hexapods | null |
58358 | https://en.wikipedia.org/wiki/Tryptophan | Tryptophan | Tryptophan (symbol Trp or W) is an α-amino acid that is used in the biosynthesis of proteins. Tryptophan contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a polar molecule with a non-polar aromatic beta carbon substituent. Tryptophan is also a precursor to the neurotransmitter s... | Biology and health sciences | Amino acids | Biology |
58422 | https://en.wikipedia.org/wiki/Aviation | Aviation | Aviation includes the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships.
Aviation began in the 18th century with the development of... | Technology | Aviation | null |
1031149 | https://en.wikipedia.org/wiki/Silviculture | Silviculture | Silviculture is the practice of controlling the growth, composition/structure, as well as quality of forests to meet values and needs, specifically timber production.
The name comes from the Latin ('forest') and ('growing'). The study of forests and woods is termed silvology. Silviculture also focuses on making sure... | Technology | Trees and forestry | null |
1031639 | https://en.wikipedia.org/wiki/Victoria%20amazonica | Victoria amazonica | Victoria amazonica is a species of flowering plant, the second largest in the water lily family Nymphaeaceae. It is called Vitória-Régia or Iaupê-Jaçanã ("the lilytrotter's waterlily") in Brazil and Atun Sisac ("great flower") in Inca (Quechua). Its native region is tropical South America, specifically Guyana and the A... | Biology and health sciences | Nymphaeales | Plants |
1032059 | https://en.wikipedia.org/wiki/King%20crab | King crab | King crabs are decapod crustaceans of the family Lithodidae that are chiefly found in deep waters and are adapted to cold environments. They are composed of two subfamilies: Lithodinae, which tend to inhabit deep waters, are globally distributed, and comprise the majority of the family's species diversity; and Hapaloga... | Biology and health sciences | Crabs and hermit crabs | Animals |
1032610 | https://en.wikipedia.org/wiki/Focus%20%28optics%29 | Focus (optics) | In geometrical optics, a focus, also called an image point, is a point where light rays originating from a point on the object converge. Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle. This non-ideal focusing may be caused by aberrations of the imaging opti... | Physical sciences | Optics | null |
1032780 | https://en.wikipedia.org/wiki/Preventive%20healthcare | Preventive healthcare | Preventive healthcare, or prophylaxis, is the application of healthcare measures to prevent diseases. Disease and disability are affected by environmental factors, genetic predisposition, disease agents, and lifestyle choices, and are dynamic processes that begin before individuals realize they are affected. Disease pr... | Biology and health sciences | Fields of medicine | null |
1034172 | https://en.wikipedia.org/wiki/Gladiolus | Gladiolus | Gladiolus (from Latin, the diminutive of gladius, a sword) is a genus of perennial cormous flowering plants in the iris family (Iridaceae).
It is sometimes called the 'sword lily', but is usually called by its generic name (plural gladioli).
The genus occurs in Asia, Mediterranean Europe, South Africa, and tropical A... | Biology and health sciences | Monocots | null |
1034453 | https://en.wikipedia.org/wiki/Podcast | Podcast | A podcast is a program made available in digital format for download over the Internet. Typically, a podcast is an episodic series of digital audio files that users can download to a personal device to listen to at a time of their choosing. Podcasts are primarily an audio medium, but some distribute in video, either as... | Technology | Media and communication | null |
3088935 | https://en.wikipedia.org/wiki/Zebra%20dove | Zebra dove | The zebra dove (Geopelia striata), also known as the barred ground dove, or barred dove, is a species of bird of the dove family, Columbidae, native to Southeast Asia. They are small birds with a long tail, predominantly brownish-grey in colour with black-and-white barring. The species is known for its pleasant, soft, ... | Biology and health sciences | Columbimorphae | Animals |
3090255 | https://en.wikipedia.org/wiki/Cun%20%28unit%29 | Cun (unit) | A cun ( ; Pinyin cùn IPA |mi=), often glossed as the Chinese inch, is a traditional Chinese unit of length. Its traditional measure is the width of a person's thumb at the knuckle, whereas the width of the two forefingers denotes 1.5 cun and the width of four fingers (except the thumb) side-by-side is 3 cuns. It contin... | Physical sciences | East Asian | Basics and measurement |
3090712 | https://en.wikipedia.org/wiki/Mylonite | Mylonite | Mylonite is a fine-grained, compact metamorphic rock produced by dynamic recrystallization of the constituent minerals resulting in a reduction of the grain size of the rock. Mylonites can have many different mineralogical compositions; it is a classification based on the textural appearance of the rock.
Formation
My... | Physical sciences | Metamorphic rocks | Earth science |
3092190 | https://en.wikipedia.org/wiki/Typhoon | Typhoon | A typhoon is a tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere and which produces sustained hurricane-force winds of at least . This region is referred to as the Northwestern Pacific Basin, accounting for almost one third of the world's tropical cyclones. The term hurricane refers to a ... | Physical sciences | Storms | Earth science |
3093514 | https://en.wikipedia.org/wiki/Satellite%20galaxies%20of%20the%20Milky%20Way | Satellite galaxies of the Milky Way | The Milky Way has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup, which is part of the local galaxy cluster, the Local Group.
There are 61 small galaxies confirmed to be within of the Milky Way, but not all of them are necessarily in orbit, and some may themselves be in orbit ... | Physical sciences | Notable galaxies | Astronomy |
11986060 | https://en.wikipedia.org/wiki/Zika%20fever | Zika fever | Zika fever, also known as Zika virus disease or simply Zika, is an infectious disease caused by the Zika virus. Most cases have no symptoms, but when present they are usually mild and can resemble dengue fever. Symptoms may include fever, red eyes, joint pain, headache, and a maculopapular rash. Symptoms generally last... | Biology and health sciences | Viral diseases | Health |
11996133 | https://en.wikipedia.org/wiki/Intercontinental%20and%20transoceanic%20fixed%20links | Intercontinental and transoceanic fixed links | A fixed link or fixed crossing is a permanent, unbroken road or rail connection across water that uses some combination of bridges, tunnels, and causeways and does not involve intermittent connections such as drawbridges or ferries. A bridge–tunnel combination is commonly used for major fixed links.
This is a list of ... | Technology | Ground transportation networks | null |
11009033 | https://en.wikipedia.org/wiki/Type%20II%20supernova | Type II supernova | A Type II supernova or SNII (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least eight times, but no more than 40 to 50 times, the mass of the Sun () to undergo this type of explosion. Type II supernovae are distinguished from other types of supernovae ... | Physical sciences | Stellar astronomy | Astronomy |
11014498 | https://en.wikipedia.org/wiki/DVD | DVD | The DVD (common abbreviation for digital video disc or digital versatile disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kind of digital data and has been widely used to store video programs (watched us... | Technology | Non-volatile memory | null |
11015826 | https://en.wikipedia.org/wiki/Blu-ray | Blu-ray | Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-definition video (HDTV 720p and 1080p). The main application of Blu-ray is as a medium ... | Technology | Non-volatile memory | null |
11016082 | https://en.wikipedia.org/wiki/Spine%20%28zoology%29 | Spine (zoology) | In a zoological context, spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species. The spines of most spiny mammals are modified hairs, with a spongy center covered in a thick, hard layer of keratin and a sharp, sometimes barbed tip.
Occurrence
Mammals
Spines in mammals in... | Biology and health sciences | Integumentary system | Biology |
11020101 | https://en.wikipedia.org/wiki/Populus%20tremula | Populus tremula | Populus tremula (commonly called aspen, common aspen, Eurasian aspen, European aspen, or quaking aspen) is a species of poplar native to cool temperate regions of the Old World.
Description
It is a substantial deciduous tree growing to tall by broad, with a trunk attaining over in diameter. The bark is pale greeni... | Biology and health sciences | Malpighiales | Plants |
9528025 | https://en.wikipedia.org/wiki/Greenhouse%20gas%20emissions | Greenhouse gas emissions | Greenhouse gas (GHG) emissions from human activities intensify the greenhouse effect. This contributes to climate change. Carbon dioxide (), from burning fossil fuels such as coal, oil, and natural gas, is the main cause of climate change. The largest annual emissions are from China followed by the United States. The U... | Physical sciences | Climate change | Earth science |
9536676 | https://en.wikipedia.org/wiki/Kinematic%20pair | Kinematic pair | In classical mechanics, a kinematic pair is a connection between two physical objects that imposes constraints on their relative movement (kinematics). German engineer Franz Reuleaux introduced the kinematic pair as a new approach to the study of machines that provided an advance over the notion of elements consisting ... | Technology | Mechanisms | null |
13549049 | https://en.wikipedia.org/wiki/Equinox%20%28celestial%20coordinates%29 | Equinox (celestial coordinates) | In astronomy, an equinox is either of two places on the celestial sphere at which the ecliptic intersects the celestial equator. Although there are two such intersections, the equinox associated with the Sun's ascending node is used as the conventional origin of celestial coordinate systems and referred to simply as "... | Physical sciences | Celestial sphere: General | Astronomy |
2244399 | https://en.wikipedia.org/wiki/Newton-second | Newton-second | The newton-second (also newton second; symbol: N⋅s or N s) is the unit of impulse in the International System of Units (SI). It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.
It can be used to identify ... | Physical sciences | Momentum/impulse | Basics and measurement |
2245629 | https://en.wikipedia.org/wiki/Ichthyosporea | Ichthyosporea | The Ichthyosporea (or DRIP clade, or Mesomycetozoea) are a small group of Opisthokonta in Eukaryota (formerly protists), mostly parasites of fish and other animals.
Significance
They are not particularly distinctive morphologically, appearing in host tissues as enlarged spheres or ovals containing spores, and most wer... | Biology and health sciences | Eukaryotes | Plants |
2246132 | https://en.wikipedia.org/wiki/Onychomycosis | Onychomycosis | Onychomycosis, also known as tinea unguium, is a fungal infection of the nail. Symptoms may include white or yellow nail discoloration, thickening of the nail, and separation of the nail from the nail bed. Fingernails may be affected, but it is more common for toenails. Complications may include cellulitis of the lower... | Biology and health sciences | Fungal infections | Health |
2248633 | https://en.wikipedia.org/wiki/Uintatherium | Uintatherium | Uintatherium ("Beast of the Uinta Mountains") is an extinct genus of herbivorous dinoceratan mammal that lived during the Eocene epoch. Two species are currently recognized: U. anceps from the United States during the Early to Middle Eocene (56–38 million years ago) and U. insperatus of Middle to Late Eocene (48–34 mil... | Biology and health sciences | Mammals: General | Animals |
14684531 | https://en.wikipedia.org/wiki/Graphometer | Graphometer | The graphometer, semicircle or semicircumferentor is a surveying instrument used for angle measurements. It consists of a semicircular limb divided into 180 degrees and sometimes subdivided into minutes. The limb is subtended by the diameter with two sights at its ends. In the middle of the diameter a "box and needle" ... | Technology | Surveying tools | null |
14688273 | https://en.wikipedia.org/wiki/Allotropes%20of%20phosphorus | Allotropes of phosphorus | Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus.
White phosphorus
White phosphorus, yellow phosphorus or simply tetraphosphorus () exists as mole... | Physical sciences | Group 15 | Chemistry |
8857956 | https://en.wikipedia.org/wiki/Progymnosperm | Progymnosperm | The progymnosperms are an extinct group of woody, spore-bearing plants that is presumed to have evolved from the trimerophytes, and eventually gave rise to the spermatophytes, ancestral to both gymnosperms and angiosperms (flowering plants). They have been treated formally at the rank of division Progymnospermophyta ... | Biology and health sciences | Pteridophytes | Plants |
1595817 | https://en.wikipedia.org/wiki/Energy%20demand%20management | Energy demand management | Energy demand management, also known as demand-side management (DSM) or demand-side response (DSR), is the modification of consumer demand for energy through various methods such as financial incentives and behavioral change through education.
Usually, the goal of demand-side management is to encourage the consumer to... | Technology | Concepts | null |
1596221 | https://en.wikipedia.org/wiki/Chemical%20test | Chemical test | In chemistry, a chemical test is a qualitative or quantitative procedure designed to identify, quantify, or characterise a chemical compound or chemical group.
Purposes
Chemical testing might have a variety of purposes, such as to:
Determine if, or verify that, the requirements of a specification, regulation, or cont... | Physical sciences | Chemical methods | Chemistry |
1596317 | https://en.wikipedia.org/wiki/Habitat | Habitat | In ecology, habitat refers to the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundame... | Biology and health sciences | Ecology | null |
1596497 | https://en.wikipedia.org/wiki/Battle%20of%20the%20sexes%20%28game%20theory%29 | Battle of the sexes (game theory) | In game theory, the battle of the sexes is a two-player coordination game that also involves elements of conflict. The game was introduced in 1957 by R. Duncan Luce and Howard Raiffa in their classic book, Games and Decisions. Some authors prefer to avoid assigning sexes to the players and instead use Players 1 and 2, ... | Mathematics | Game theory | null |
1597976 | https://en.wikipedia.org/wiki/Kiang | Kiang | The kiang (Equus kiang) is the largest of the Asinus subgenus. It is native to the Tibetan Plateau in Ladakh India, northern Pakistan, Tajikistan, China and northern Nepal. It inhabits montane grasslands and shrublands. Other common names for this species include Tibetan wild ass, khyang and gorkhar.
Characteristics
... | Biology and health sciences | Equidae | Animals |
1597987 | https://en.wikipedia.org/wiki/Gr%C3%A9vy%27s%20zebra | Grévy's zebra | Grévy's zebra (Equus grevyi), also known as the imperial zebra, is the largest living wild equid and the most threatened of the three species of zebra, the other two being the plains zebra and the mountain zebra. Named after French president Jules Grévy, it is found in parts of Kenya and Ethiopia. Superficially, Grévy'... | Biology and health sciences | Equidae | Animals |
1599216 | https://en.wikipedia.org/wiki/Biomagnification | Biomagnification | Biomagnification, also known as bioamplification or biological magnification, is the increase in concentration of a substance, e.g a pesticide, in the tissues of organisms at successively higher levels in a food chain. This increase can occur as a result of:
Persistence – where the substance cannot be broken down by e... | Biology and health sciences | Ecology | Biology |
7366298 | https://en.wikipedia.org/wiki/Solid-state%20drive | Solid-state drive | A solid-state drive (SSD) is a type of solid-state storage device that uses integrated circuits to store data persistently. It is sometimes called semiconductor storage device, solid-state device, or solid-state disk.
SSDs rely on non-volatile memory, typically NAND flash, to store data in memory cells. The performanc... | Technology | Non-volatile memory | null |
11996885 | https://en.wikipedia.org/wiki/Electronic%20cigarette | Electronic cigarette | An electronic cigarette (e-cigarette), or vape, is a device that simulates smoking. It consists of an atomizer, a power source such as a battery, and a container such as a cartridge or tank. Instead of smoke, the user inhales vapor. As such, using an e-cigarette is often called "vaping".
The atomizer is a heating elem... | Biology and health sciences | Health and fitness: General | Health |
12007378 | https://en.wikipedia.org/wiki/Mehmed%20Pa%C5%A1a%20Sokolovi%C4%87%20Bridge | Mehmed Paša Sokolović Bridge | The Mehmed Paša Sokolović Bridge () is a historic bridge in Višegrad, over the Drina River in eastern Bosnia and Herzegovina part of the Republika Srpska entity. It was completed in 1577 by the Ottoman court architect Mimar Sinan on the order of the Grand Vizier Mehmed Paša Sokolović. In 2003 bridge was included into t... | Technology | Bridges | null |
3094621 | https://en.wikipedia.org/wiki/Charge%20conservation | Charge conservation | In physics, charge conservation is the principle, of experimental nature, that the total electric charge in an isolated system never changes. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved. Charge conservation, considered as... | Physical sciences | Particle physics: General | Physics |
3094833 | https://en.wikipedia.org/wiki/Vascular%20tissue | Vascular tissue | Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and nutrients internally. There are also two meristems associated with vascular tissue: the vascular cambium ... | Biology and health sciences | Plant tissues | null |
3096971 | https://en.wikipedia.org/wiki/Phonophobia | Phonophobia | Phonophobia, also called ligyrophobia or sonophobia, is a fear of or aversion to loud sounds (for example firecrackers)—a type of specific phobia. It is a very rare phobia which is often the symptom of hyperacusis. Sonophobia can refer to the hypersensitivity of a patient to sound and can be part of the diagnosis of a... | Biology and health sciences | Symptoms and signs | Health |
3098635 | https://en.wikipedia.org/wiki/Shonisaurus | Shonisaurus | Shonisaurus is a genus of very large ichthyosaurs. At least 37 incomplete fossil specimens of the type species, Shonisaurus popularis, have been found in the Luning Formation of Nevada, USA. This formation dates to the late Carnian-early Norian age of the Late Triassic, around 227 million years ago. Other possible spec... | Biology and health sciences | Prehistoric marine reptiles | Animals |
5634358 | https://en.wikipedia.org/wiki/Ekman%20transport | Ekman transport | Ekman transport is part of Ekman motion theory, first investigated in 1902 by Vagn Walfrid Ekman. Winds are the main source of energy for ocean circulation, and Ekman transport is a component of wind-driven ocean current. Ekman transport occurs when ocean surface waters are influenced by the friction force acting on th... | Physical sciences | Oceanography | Earth science |
11030631 | https://en.wikipedia.org/wiki/Banded%20knifefish | Banded knifefish | The banded knifefish (Gymnotus carapo) is a species of gymniform knifefish native to a wide range of freshwater habitats in South America. It is the most widespread species of Gymnotus, but it has frequently been confused with several relatives, including some found outside its range like the Central America G. maculo... | Biology and health sciences | Gymnotiformes | Animals |
348300 | https://en.wikipedia.org/wiki/Digital%20video%20recorder | Digital video recorder | A digital video recorder (DVR), also referred to as a personal video recorder (PVR) particularly in Canadian and British English, is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device. The term includes set-to... | Technology | Media and communication: Basics | null |
348472 | https://en.wikipedia.org/wiki/Lady%20Amherst%27s%20pheasant | Lady Amherst's pheasant | Lady Amherst's pheasant (Chrysolophus amherstiae) is a bird of the order Galliformes and the family Phasianidae. The genus name is from Ancient Greek khrusolophos, "with golden crest". The English name and amherstiae commemorates Sarah Amherst, who was responsible for sending the first specimen of the bird to London in... | Biology and health sciences | Galliformes | Animals |
348898 | https://en.wikipedia.org/wiki/Fatigue%20%28material%29 | Fatigue (material) | In materials science, fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing striations on some parts of the fracture surface. The crack will continue to grow until it reaches a cri... | Physical sciences | Solid mechanics | null |
348973 | https://en.wikipedia.org/wiki/Antichain | Antichain | In mathematics, in the area of order theory, an antichain is a subset of a partially ordered set such that any two distinct elements in the subset are incomparable.
The size of the largest antichain in a partially ordered set is known as its width. By Dilworth's theorem, this also equals the minimum number of chains (... | Mathematics | Order theory | null |
349053 | https://en.wikipedia.org/wiki/Iterated%20integral | Iterated integral | In multivariable calculus, an iterated integral is the result of applying integrals to a function of more than one variable (for example or ) in such a way that each of the integrals considers some of the variables as given constants. For example, the function , if is considered a given parameter, can be integrated w... | Mathematics | Multivariable and vector calculus | null |
349319 | https://en.wikipedia.org/wiki/Healthcare%20industry | Healthcare industry | The healthcare industry (also called the medical industry or health economy) is an aggregation and integration of sectors within the economic system that provides goods and services to treat patients with curative, preventive, rehabilitative, and palliative care. It encompasses the creation and commercialization of pro... | Biology and health sciences | General concepts | Health |
349458 | https://en.wikipedia.org/wiki/Simplex%20algorithm | Simplex algorithm | In mathematical optimization, Dantzig's simplex algorithm (or simplex method) is a popular algorithm for linear programming.
The name of the algorithm is derived from the concept of a simplex and was suggested by T. S. Motzkin. Simplices are not actually used in the method, but one interpretation of it is that it oper... | Mathematics | Optimization | null |
349627 | https://en.wikipedia.org/wiki/Calcium%20chloride | Calcium chloride | Calcium chloride is an inorganic compound, a salt with the chemical formula . It is a white crystalline solid at room temperature, and it is highly soluble in water. It can be created by neutralising hydrochloric acid with calcium hydroxide.
Calcium chloride is commonly encountered as a hydrated solid with generic for... | Physical sciences | Salts | null |
349628 | https://en.wikipedia.org/wiki/Mediterranean%20climate | Mediterranean climate | A Mediterranean climate ( ), also called a dry summer climate, described by Köppen and Trewartha as Cs, is a temperate climate type that occurs in the lower mid-latitudes (normally 30 to 44 north and south latitude). Such climates typically have dry summers and wet winters, with summer conditions being hot and winter c... | Physical sciences | Climates | Earth science |
349676 | https://en.wikipedia.org/wiki/Electrophoresis | Electrophoresis | Electrophoresis is the motion of charged dispersed particles or dissolved charged molecules relative to a fluid under the influence of a spatially uniform electric field. As a rule, these are zwitterions.
Electrophoresis is used in laboratories to separate macromolecules based on their charges. The technique normally ... | Physical sciences | Electrical methods | Chemistry |
349735 | https://en.wikipedia.org/wiki/Baryon%20number | Baryon number | In particle physics, the baryon number is a strictly conserved additive quantum number of a system. It is defined as
where is the number of quarks, and is the number of antiquarks. Baryons (three quarks) have a baryon number of +1, mesons (one quark, one antiquark) have a baryon number of 0, and antibaryons (three a... | Physical sciences | Quantum numbers | Physics |
349819 | https://en.wikipedia.org/wiki/Pin%20tumbler%20lock | Pin tumbler lock | The pin tumbler lock, also known as the Yale lock after the inventor of the modern version, is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key.
Pin tumblers are most commonly employed in cylinder locks, but may also be found in tubular pin tumbler locks (also... | Technology | Mechanisms | null |
350073 | https://en.wikipedia.org/wiki/Ruff%20%28bird%29 | Ruff (bird) | The ruff (Calidris pugnax) is a medium-sized wading bird that breeds in marshes and wet meadows across northern Eurasia. This highly gregarious sandpiper is migratory and sometimes forms huge flocks in its winter grounds, which include southern and western Europe, Africa, southern Asia and Australia.
The ruff is a lon... | Biology and health sciences | Charadriiformes | Animals |
350206 | https://en.wikipedia.org/wiki/Sable | Sable | The sable (Martes zibellina) is a species of marten, a small omnivorous mammal primarily inhabiting the forest environments of Russia, from the Ural Mountains throughout Siberia, and northern Mongolia. Its habitat also borders eastern Kazakhstan, China, North Korea and Hokkaido, Japan.
The name "sable" originates from... | Biology and health sciences | Mustelidae | Animals |
350239 | https://en.wikipedia.org/wiki/Basket | Basket | A basket is a container that is traditionally constructed from stiff fibers, and can be made from a range of materials, including wood splints, runners, and cane. While most baskets are made from plant materials, other materials such as horsehair, baleen, or metal wire can be used. Baskets are generally woven by hand. ... | Technology | Containers | null |
350375 | https://en.wikipedia.org/wiki/Spinning%20jenny | Spinning jenny | The spinning jenny is a multi-spindle spinning frame, and was one of the key developments in the industrialisation of textile manufacturing during the early Industrial Revolution. It was invented in 1764–1765 by James Hargreaves in Stan hill, Oswaldtwistle, Lancashire in England.
The device reduced the amount of work ... | Technology | Spinning | null |
350708 | https://en.wikipedia.org/wiki/MultiMediaCard | MultiMediaCard | MultiMediaCard, officially abbreviated as MMC, is a memory card standard used for solid-state storage. Unveiled in 1997 by SanDisk and Siemens, MMC is based on a surface-contact low-pin-count serial interface using a single memory stack substrate assembly, and is therefore much smaller than earlier systems based on hig... | Technology | Non-volatile memory | null |
350915 | https://en.wikipedia.org/wiki/Chromaticity | Chromaticity | Chromaticity is an objective specification of the quality of a color regardless of its luminance. Chromaticity consists of two independent parameters, often specified as hue (h) and colorfulness (s), where the latter is alternatively called saturation, chroma, intensity, or excitation purity. This number of parameters ... | Physical sciences | Basics | Physics |
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