id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
values | token_count int64 3 51.8k |
|---|---|---|---|---|---|
63,762,870 | https://en.wikipedia.org/wiki/Volvation | Volvation (from Latin volvere "roll", and the suffix -(a)tion; sometimes called enrolment or conglobation), is a defensive behavior in certain animals, in which the animal rolls its own body into a ball, presenting only the hardest parts of its integument (the animal's "armor"), or its spines to predators.
Among mamm... | Volvation | Biology | 378 |
10,845,121 | https://en.wikipedia.org/wiki/Builder%27s%20Old%20Measurement | Builder's Old Measurement (BOM, bm, OM, and o.m.) is the method used in England from approximately 1650 to 1849 for calculating the cargo capacity of a ship. It is a volumetric measurement of cubic capacity. It estimated the tonnage of a ship based on length and maximum beam. It is expressed in "tons burden" (, ), and... | Builder's Old Measurement | Physics,Mathematics | 1,039 |
3,416,085 | https://en.wikipedia.org/wiki/Sumatran%20water%20shrew | The Sumatran water shrew (Chimarrogale sumatrana) is a red-toothed shrew found only in the Padang highlands of western Sumatra, Indonesia. Its natural habitats are streams in montane forests. The species is only known from a holotype, which is damaged, and was previously listed as critically endangered by IUCN. It is b... | Sumatran water shrew | Biology | 123 |
4,556,078 | https://en.wikipedia.org/wiki/History%20of%20sound%20recording | The history of sound recording - which has progressed in waves, driven by the invention and commercial introduction of new technologies — can be roughly divided into four main periods:
The Acoustic era (1877–1925)
The Electrical era (1925–1945)
The Magnetic era (1945–1975)
The Digital era (1975–present)
Experiment... | History of sound recording | Technology,Engineering | 10,770 |
24,470,919 | https://en.wikipedia.org/wiki/William%20Klemperer | William A. Klemperer (October 6, 1927 – November 5, 2017) was an American chemist, chemical physicist and molecular spectroscopist. Klemperer is most widely known for introducing molecular beam methods into chemical physics research, greatly increasing the understanding of nonbonding interactions between atoms and mol... | William Klemperer | Chemistry | 1,631 |
33,937,959 | https://en.wikipedia.org/wiki/Boletellus%20belizensis | Boletellus belizensis is a species of bolete fungus in the family Boletaceae. Found in Belize, it was described as new to science in 2007.
References
External links
belizensis
Fungi described in 2007
Fungi of Central America
Fungus species | Boletellus belizensis | Biology | 50 |
5,952,567 | https://en.wikipedia.org/wiki/Inmarsat | Inmarsat is a British satellite telecommunications company, offering global mobile services. It provides telephone and data services to users worldwide, via portable or mobile terminals which communicate with ground stations through fifteen geostationary telecommunications satellites.
Inmarsat's network provides commu... | Inmarsat | Technology | 5,670 |
1,953,160 | https://en.wikipedia.org/wiki/Limnic%20eruption | A limnic eruption, also known as a lake overturn, is a very rare type of natural hazard in which dissolved carbon dioxide () suddenly erupts from deep lake waters, forming a gas cloud capable of asphyxiating wildlife, livestock, and humans. Scientists believe earthquakes, volcanic activity, and other explosive events c... | Limnic eruption | Physics,Chemistry,Environmental_science | 2,192 |
38,889,260 | https://en.wikipedia.org/wiki/Ewaso%20Lions | The Ewaso Lions Project was founded in 2007 for the protection of lions (Panthera leo) and their habitat in Northern Kenya. The project works to study and incorporate local communities in helping to protect the lions in the Samburu National Reserve, Buffalo Springs National Reserve and Shaba National Reserve of the Ewa... | Ewaso Lions | Biology | 452 |
14,012,859 | https://en.wikipedia.org/wiki/Dunlap%27s%20Creek%20Bridge |
Dunlap's Creek Bridge is the first arch bridge in the United States built of cast iron. It was designed by Richard Delafield and built by the United States Army Corps of Engineers.<ref
name="jackson">
</ref> Constructed from 1836 to 1839 on the National Road in Brownsville, Pennsylvania, it remains in use today. It ... | Dunlap's Creek Bridge | Engineering | 347 |
12,002,936 | https://en.wikipedia.org/wiki/Displacement%E2%80%93length%20ratio | The displacement–length ratio (DLR or D/L ratio) is a calculation used to express how heavy a boat is relative to its waterline length.
DLR was first published in
It is calculated by dividing a boat's displacement in long tons (2,240 pounds) by the cube of one one-hundredth of the waterline length (in feet):
DLR ca... | Displacement–length ratio | Mathematics,Engineering | 143 |
28,822,858 | https://en.wikipedia.org/wiki/Holographic%20sensor | A holographic sensor is a device that comprises a hologram embedded in a smart material that detects certain molecules or metabolites. This detection is usually a chemical interaction that is transduced as a change in one of the properties of the holographic reflection (as in the Bragg reflector), either refractive ind... | Holographic sensor | Technology,Engineering | 308 |
23,718,510 | https://en.wikipedia.org/wiki/Daniel%20Garc%C3%ADa%20And%C3%BAjar | Daniel García Andújar (1966 in Almoradí) is a self-taught, outsider visual media artist, activist, and art theorist from Spain. He lives and works in Barcelona. His work has been exhibited widely, including Manifesta 4, the Venice Biennale and documenta 14 Athens, Kassel. He has directed numerous workshops for artists ... | Daniel García Andújar | Technology | 1,499 |
1,452,979 | https://en.wikipedia.org/wiki/Zn%C3%A1m%27s%20problem | In number theory, Znám's problem asks which sets of integers have the property that each integer in the set is a proper divisor of the product of the other integers in the set, plus 1. Znám's problem is named after the Slovak mathematician Štefan Znám, who suggested it in 1972, although other mathematicians had conside... | Znám's problem | Mathematics | 1,002 |
3,021,435 | https://en.wikipedia.org/wiki/Primary%20ideal | In mathematics, specifically commutative algebra, a proper ideal Q of a commutative ring A is said to be primary if whenever xy is an element of Q then x or yn is also an element of Q, for some n > 0. For example, in the ring of integers Z, (pn) is a primary ideal if p is a prime number.
The notion of primary ideals i... | Primary ideal | Mathematics | 791 |
9,248,704 | https://en.wikipedia.org/wiki/30P/Reinmuth | Comet 30P/Reinmuth, also known as Comet Reinmuth 1, is a periodic comet in the Solar System, first discovered by Karl Reinmuth (Landessternwarte Heidelberg-Königstuhl, Germany) on February 22, 1928.
First calculations of orbit concluded a period of 25 years, but this was revised down to seven years and speculation thi... | 30P/Reinmuth | Astronomy | 256 |
41,051,864 | https://en.wikipedia.org/wiki/Hulsebos-Hesselman%20axial%20oil%20engines | Hulsebos-Hesselman axial oil engines were five cylinder, four stroke, wobble plate engines that originated in and were used throughout the Netherlands during the late 1930s. Numerous patents can be found concerning this engine, all of which appear to attribute the engine's "wabbler" operating principles to the inventor... | Hulsebos-Hesselman axial oil engines | Technology | 274 |
5,259,465 | https://en.wikipedia.org/wiki/Diglyme | Diglyme, or bis(2-methoxyethyl) ether, is an organic compound with the chemical formula . It is a colorless liquid with a slight ether-like odor. It is a solvent with a high boiling point. It is the dimethyl ether of diethylene glycol. The name diglyme is a portmanteau of diglycol methyl ether. It is miscible with wate... | Diglyme | Chemistry | 310 |
20,392,928 | https://en.wikipedia.org/wiki/Equianalgesic | An equianalgesic chart is a conversion chart that lists equivalent doses of analgesics (drugs used to relieve pain). Equianalgesic charts are used for calculation of an equivalent dose (a dose which would offer an equal amount of analgesia) between different analgesics. Tables of this general type are also available fo... | Equianalgesic | Chemistry | 842 |
20,622,091 | https://en.wikipedia.org/wiki/Swype | Swype was a virtual keyboard for touchscreen smartphones and tablets originally developed by Swype Inc., founded in 2002, where the user enters words by sliding a finger or stylus from the first letter of a word to its last letter, lifting only between words. It uses error-correction algorithms and a language model to ... | Swype | Technology | 814 |
57,896,281 | https://en.wikipedia.org/wiki/TXS%200506%2B056 | TXS 0506+056 is a very high energy blazar – a quasar with a relativistic jet pointing directly towards Earth – of BL Lac-type. With a redshift of 0.3365 ± 0.0010, it has a luminosity distance of about . Its approximate location on the sky is off the left shoulder of the constellation Orion. Discovered as a radio source... | TXS 0506+056 | Astronomy | 1,297 |
15,217,336 | https://en.wikipedia.org/wiki/ZBTB21 | Zinc finger and BTB domain-containing protein 21 is a protein that in humans is encoded by the ZBTB21 gene.
See also
BTB domain
Zinc finger
References
Further reading
External links
Transcription factors | ZBTB21 | Chemistry,Biology | 42 |
10,297,209 | https://en.wikipedia.org/wiki/Quisqualic%20acid | Quisqualic acid is an agonist of the AMPA, kainate, and group I metabotropic glutamate receptors. It is one of the most potent AMPA receptor agonists known. It causes excitotoxicity and is used in neuroscience to selectively destroy neurons in the brain or spinal cord. Quisqualic acid occurs naturally in the seeds of ... | Quisqualic acid | Chemistry | 3,327 |
58,687,359 | https://en.wikipedia.org/wiki/Precordial%20concordance | Precordial concordance, also known as QRS concordance is when all precordial leads on an electrocardiogram are either positive (positive concordance) or negative (negative concordance). When there is a negative concordance, it almost always represents a life-threatening condition called ventricular tachycardia because ... | Precordial concordance | Biology | 119 |
31,033,998 | https://en.wikipedia.org/wiki/Web%20audience%20measurement | Web Audience Measurement (WAM) is an audience measurement and website analytics tool that measures Internet usage in India. The system, a joint effort of IMRB International and Internet and Mobile Association of India surveys over 6000 individuals across 8 metropolitan centers in India and tracks a variety of metrics s... | Web audience measurement | Technology | 244 |
12,200,818 | https://en.wikipedia.org/wiki/Dean%20number | The Dean number (De) is a dimensionless group in fluid mechanics, which occurs in the study of flow in curved pipes and channels. It is named after the British scientist W. R. Dean, who was the first to provide a theoretical solution of the fluid
motion through curved pipes for laminar flow by using a perturbation proc... | Dean number | Chemistry,Engineering | 936 |
24,983,492 | https://en.wikipedia.org/wiki/NN%20Serpentis | NN Serpentis (abbreviated NN Ser) is an eclipsing post-common envelope binary system approximately 1670 light-years away. The system comprises an eclipsing white dwarf and red dwarf. The two stars orbit each other every 0.13 days.
Planetary system
A planetary system has been inferred to exist around NN Ser by several... | NN Serpentis | Astronomy | 489 |
26,652,964 | https://en.wikipedia.org/wiki/Intersex | Intersex people are individuals born with any of several sex characteristics, including chromosome patterns, gonads, or genitals that, according to the Office of the United Nations High Commissioner for Human Rights, "do not fit typical binary notions of male or female bodies".
Sex assignment at birth usually aligns w... | Intersex | Biology | 8,984 |
5,281,661 | https://en.wikipedia.org/wiki/Ponerosteus | Ponerosteus is a dubious genus of extinct archosauromorph from the Late Cretaceous (Cenomanian-aged) Korycanar Formation of the Czech Republic that was initially identified as a species of the dinosaur Iguanodon.
The type, and currently only, species is P. exogyrarum.
Discovery and naming
The holotype, NAMU Ob 40, c... | Ponerosteus | Biology | 342 |
3,938,286 | https://en.wikipedia.org/wiki/Mullard%205-10 | The Mullard 5-10 was a circuit for a valve amplifier designed by the British valve company, Mullard in 1954 at the Mullard Applications Research Laboratory (ARL) in Mitcham Surrey UK, part of the New Road factory complex, to take advantage of their particular products. The circuit was first published in Practical Wirel... | Mullard 5-10 | Physics | 348 |
10,355,154 | https://en.wikipedia.org/wiki/New%20Mexico%20statistical%20areas | The U.S. currently has 19 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated two combined statistical areas, four metropolitan statistical areas, and 13 micropolitan statistical areas in . As of 2023, the largest of these is the Albuquerque-Sa... | New Mexico statistical areas | Mathematics | 208 |
1,313,639 | https://en.wikipedia.org/wiki/Skyrmion | In particle theory, the skyrmion () is a topologically stable field configuration of a certain class of non-linear sigma models. It was originally proposed as a model of the nucleon by (and named after) Tony Skyrme in 1961. As a topological soliton in the pion field, it has the remarkable property of being able to mode... | Skyrmion | Physics | 2,130 |
420,524 | https://en.wikipedia.org/wiki/Bottleneck%20traveling%20salesman%20problem | The Bottleneck traveling salesman problem (bottleneck TSP) is a problem in discrete or combinatorial optimization. The problem is to find the Hamiltonian cycle (visiting each node exactly once) in a weighted graph which minimizes the weight of the highest-weight edge of the cycle. It was first formulated by with some... | Bottleneck traveling salesman problem | Mathematics | 906 |
23,644,361 | https://en.wikipedia.org/wiki/David%20B.%20A.%20Epstein | David Bernard Alper Epstein (born 1937) is a mathematician known for his work in hyperbolic geometry, 3-manifolds, and group theory, amongst other fields. He co-founded the University of Warwick mathematics department with Christopher Zeeman and is founding editor of the journal Experimental Mathematics.
Higher educa... | David B. A. Epstein | Mathematics | 1,082 |
24,144,121 | https://en.wikipedia.org/wiki/C23H36O2 | {{DISPLAYTITLE:C23H36O2}}
The molecular formula C23H36O2 (molar mass: 344.53 g/mol, exact mass: 344.2715 u) may refer to:
Cardanolide
Dimepregnen, or 6α,16α-dimethylpregn-4-en-3β-ol-20-one
Hexahydrocannabiphorol
Luteone (terpenoid) | C23H36O2 | Chemistry | 102 |
2,622,542 | https://en.wikipedia.org/wiki/Radisys | Radisys Corporation is an American technology company located in Hillsboro, Oregon, United States that makes technology used by telecommunications companies in mobile networks. Founded in 1987 in Oregon by former employees of Intel, the company went public in 1995. The company's products are used in mobile network appl... | Radisys | Technology,Engineering | 989 |
13,067,121 | https://en.wikipedia.org/wiki/AES64 | The AES coarse-groove calibration discs (AES-S001-064) are a boxed set of two identical discs, one for routine use, one for master reference. The intent is to characterize the reproduction chain for the mass transfer of coarse-groove records to digital media, much like using a photographic calibration reference in imag... | AES64 | Engineering | 1,028 |
701,289 | https://en.wikipedia.org/wiki/Cathartic | In medicine, a cathartic is a substance that accelerates defecation. This is similar to a laxative, which is a substance that eases defecation, usually by softening feces. It is possible for a substance to be both a laxative and a cathartic. However, agents such as psyllium seed husks increase the bulk of the feces.
C... | Cathartic | Environmental_science | 203 |
13,925,642 | https://en.wikipedia.org/wiki/Atlas%20Carver | The Atlas Carver (sometimes erroneously referred to as "CAVA") was a proposed South African twin-engine, delta wing fourth-generation fighter aircraft. In development during the 1980s and early 1990s, the Carver was ultimately cancelled during 1991.
The South African Border War played a considerable role in stimulatin... | Atlas Carver | Engineering | 2,379 |
210,900 | https://en.wikipedia.org/wiki/Solar%20luminosity | The solar luminosity () is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.
One nominal solar luminosity is defined by the International Astronomical Union to be .... | Solar luminosity | Physics,Astronomy,Mathematics | 375 |
11,840,868 | https://en.wikipedia.org/wiki/Entropy%20power%20inequality | In information theory, the entropy power inequality (EPI) is a result that relates to so-called "entropy power" of random variables. It shows that the entropy power of suitably well-behaved random variables is a superadditive function. The entropy power inequality was proved in 1948 by Claude Shannon in his seminal pap... | Entropy power inequality | Mathematics,Technology,Engineering | 348 |
18,150,996 | https://en.wikipedia.org/wiki/Burning%20Index | Burning Index (BI) is a number used by the National Oceanic and Atmospheric Administration (NOAA) to describe the potential amount of effort needed to contain a single fire in a particular fuel type within a rating area. The National Fire Danger Rating System (NFDRS) uses a modified version of Bryam's equation for flam... | Burning Index | Chemistry | 198 |
49,033 | https://en.wikipedia.org/wiki/Epigenetics | In biology, epigenetics is the study of heritable traits, or a stable change of cell function, that happen without changes to the DNA sequence. The Greek prefix epi- ( "over, outside of, around") in epigenetics implies features that are "on top of" or "in addition to" the traditional (DNA sequence based) genetic mechan... | Epigenetics | Biology | 13,929 |
7,530,857 | https://en.wikipedia.org/wiki/Resonant-tunneling%20diode | A resonant-tunneling diode (RTD) is a diode with a resonant-tunneling structure in which electrons can tunnel through some resonant states at certain energy levels. The current–voltage characteristic often exhibits negative differential resistance regions.
All types of tunneling diodes make use of quantum mechanical t... | Resonant-tunneling diode | Physics | 2,393 |
7,770,329 | https://en.wikipedia.org/wiki/Seidel%20adjacency%20matrix | In mathematics, in graph theory, the Seidel adjacency matrix of a simple undirected graph G is a symmetric matrix with a row and column for each vertex, having 0 on the diagonal, −1 for positions whose rows and columns correspond to adjacent vertices, and +1 for positions corresponding to non-adjacent vertices.
It is a... | Seidel adjacency matrix | Mathematics | 529 |
15,403,569 | https://en.wikipedia.org/wiki/HD%20122563 | HD 122563 is an extremely metal-poor red giant star, and the brightest known metal-poor star in the sky. Its low heavy element content was first recognized by spectroscopic analysis in 1963. For more than twenty years it was the most metal-poor star known, being more metal-poor than any known globular cluster, and it ... | HD 122563 | Astronomy | 446 |
2,902,748 | https://en.wikipedia.org/wiki/10%20Arietis | 10 Arietis is a binary star system in the northern constellation of Aries. 10 Arietis is the Flamsteed designation. It is visible to the naked eye as a dim, yellow-white hued star with a combined apparent visual magnitude of 5.63. Based upon parallax measurements, it is located around 159 light years away from the Sun.... | 10 Arietis | Astronomy | 299 |
51,742 | https://en.wikipedia.org/wiki/Drawing%20board | A drawing board (also drawing table, drafting table or architect's table) is, in its antique form, a kind of multipurpose desk which can be used for any kind of drawing, writing or impromptu sketching on a large sheet of paper or for reading a large format book or other oversized document or for drafting precise techni... | Drawing board | Engineering | 1,238 |
4,945,092 | https://en.wikipedia.org/wiki/Digital%20magnetofluidics | Digital magnetofluidics is a method for moving, combining, splitting, and controlling drops of water or biological fluids using magnetic fields. This is accomplished by adding superparamagnetic particles to a drop placed on a superhydrophobic surface. Normally this type of surface would exhibit a lotus effect and th... | Digital magnetofluidics | Engineering | 193 |
30,507,978 | https://en.wikipedia.org/wiki/Mu%20Ophiuchi | μ Ophiuchi, Latinized as Mu Ophiuchi, is a solitary, blue-white hued star in the equatorial constellation of Ophiuchus. It is visible to the naked as a faint point of light with an apparent visual magnitude of 4.62. This object is located approximately 760 light years away from the Sun based on parallax, but is driftin... | Mu Ophiuchi | Astronomy | 292 |
3,600,229 | https://en.wikipedia.org/wiki/Curb | A curb (American English) or kerb (British English) is the edge where a raised sidewalk or road median/central reservation meets a street or other roadway.
History
Although curbs have been used throughout modern history, and indeed were present in ancient Pompeii, their widespread construction and use only began in t... | Curb | Technology | 2,227 |
13,193,620 | https://en.wikipedia.org/wiki/Bound%20graph | In graph theory, a bound graph expresses which pairs of elements of some partially ordered set have an upper bound. Rigorously, any graph G is a bound graph if there exists a partial order ≤ on the vertices of G with the property that for any vertices u and v of G, uv is an edge of G if and only if u ≠ v and there is ... | Bound graph | Mathematics | 264 |
35,752,192 | https://en.wikipedia.org/wiki/Committed%20dose | The committed dose in radiological protection is a measure of the stochastic health risk due to an intake of radioactive material into the human body. Stochastic in this context is defined as the probability of cancer induction and genetic damage, due to low levels of radiation. The SI unit of measure is the sievert.
... | Committed dose | Physics,Chemistry,Materials_science | 2,954 |
146,396 | https://en.wikipedia.org/wiki/Tracheal%20intubation | Tracheal intubation, usually simply referred to as intubation, is the placement of a flexible plastic tube into the trachea (windpipe) to maintain an open airway or to serve as a conduit through which to administer certain drugs. It is frequently performed in critically injured, ill, or anesthetized patients to facilit... | Tracheal intubation | Biology | 11,143 |
65,141,595 | https://en.wikipedia.org/wiki/Uzbekcosmos | The Space Research and Technology Agency under the Ministry of Digital Technologies of the Republic of Uzbekistan (Uzbek: O'zbekiston Respublikasi Raqamli texnologiyalar vazirligi huzuridagi Kosmik tadqiqotlar va texnologiyalar agentligi) also known as Uzbekspace Agency (Uzbek: "O'zbekkosmos" agentligi) is the officia... | Uzbekcosmos | Engineering | 165 |
41,325,698 | https://en.wikipedia.org/wiki/Marc%20Lee | Marc Lee (born March 17, 1969) is a Swiss new media artist working in the fields of interactive installation art, internet art, performance art and video art.
Biography
Lee was born in 1969 in Knutwil, Lucerne, in Switzerland. He studied at the Basel University of Art and Design installation and at the Zurich Universi... | Marc Lee | Technology | 1,762 |
48,408,937 | https://en.wikipedia.org/wiki/Fort%20Saint-Jean%20%28Lyon%29 | The Fort Saint-Jean () is located in the 1st arrondissement of Lyon and part of the first fort belt of Lyon, which includes
Fort de Loyasse, and the now-demolished Fort Duchère and Fort de Caluire.
History
The fort was initially nothing but a bastion built as a component of the wall around the Croix-Rousse hill at t... | Fort Saint-Jean (Lyon) | Engineering | 351 |
13,061,682 | https://en.wikipedia.org/wiki/Platelet-activating%20factor%20receptor | The platelet-activating factor receptor (PAF-R) is a G-protein coupled receptor which binds platelet-activating factor. It is encoded in the human by the PTAFR gene.
The PAF receptor shows structural characteristics of the rhodopsin (MIM 180380) gene family and binds platelet-activating factor (PAF). PAF is a phosphol... | Platelet-activating factor receptor | Chemistry | 228 |
4,141,655 | https://en.wikipedia.org/wiki/W%20state | The W state is an entangled quantum state of three qubits which in the bra-ket notation has the following shape
and which is remarkable for representing a specific type of multipartite entanglement and for occurring in several applications in quantum information theory. Particles prepared in this state reproduce the... | W state | Physics | 507 |
1,529,808 | https://en.wikipedia.org/wiki/Farrington%20Daniels | Farrington Daniels (March 8, 1889 – June 23, 1972) was an American physical chemist who is considered one of the pioneers of the modern direct use of solar energy.
Biography
Daniels was born in Minneapolis, Minnesota on March 8, 1889. Daniels began day school in 1895 at the Kenwood School and then on to Douglas Schoo... | Farrington Daniels | Chemistry | 1,224 |
63,327,266 | https://en.wikipedia.org/wiki/Lunar%20penetrometer | The lunar penetrometer was a spherical electronic tool that served to measure the load-bearing characteristics of the Moon in preparation for spacecraft landings. It was designed by NASA to be dropped onto the surface from a vehicle orbiting overhead and transmit information to the spacecraft. However, despite it being... | Lunar penetrometer | Technology,Engineering | 2,409 |
12,335,752 | https://en.wikipedia.org/wiki/Energy%20minimization | In the field of computational chemistry, energy minimization (also called energy optimization, geometry minimization, or geometry optimization) is the process of finding an arrangement in space of a collection of atoms where, according to some computational model of chemical bonding, the net inter-atomic force on each ... | Energy minimization | Chemistry,Mathematics | 2,875 |
229,643 | https://en.wikipedia.org/wiki/Molality | In chemistry, molality is a measure of the amount of solute in a solution relative to a given mass of solvent. This contrasts with the definition of molarity which is based on a given volume of solution.
A commonly used unit for molality is the moles per kilogram (mol/kg). A solution of concentration 1 mol/kg is also ... | Molality | Physics,Chemistry,Mathematics | 2,537 |
64,045,652 | https://en.wikipedia.org/wiki/2MASS%20J10475385%2B2124234 | 2MASS J10475385+2124234 (abbreviated to 2MASS J1047+21) is a brown dwarf of spectral class T6.5, in the constellation Leo about 34 light-years from Earth, hence in galactic topographical and interstellar medium study terms being in the Local Bubble and very nearby in the Orion Arm. The object first attracted attention ... | 2MASS J10475385+2124234 | Astronomy | 762 |
2,368,360 | https://en.wikipedia.org/wiki/Obstetrical%20dilemma | The obstetrical dilemma is a hypothesis to explain why humans often require assistance from other humans during childbirth to avoid complications, whereas most non-human primates give birth unassisted with relatively little difficulty. This occurs due to the tight fit of the fetal head to the maternal birth canal, whic... | Obstetrical dilemma | Biology | 4,556 |
7,682,020 | https://en.wikipedia.org/wiki/5086%20aluminium%20alloy | 5086 aluminium alloy is an aluminium–magnesium alloy, primarily alloyed with magnesium. It is not strengthened by heat treatment, instead becoming stronger due to strain hardening, or cold mechanical working of the material.
Since heat treatment doesn't strongly affect the strength, 5086 can be readily welded and reta... | 5086 aluminium alloy | Chemistry | 647 |
237,868 | https://en.wikipedia.org/wiki/Product%20%28category%20theory%29 | In category theory, the product of two (or more) objects in a category is a notion designed to capture the essence behind constructions in other areas of mathematics such as the Cartesian product of sets, the direct product of groups or rings, and the product of topological spaces. Essentially, the product of a family ... | Product (category theory) | Mathematics | 1,470 |
30,957,264 | https://en.wikipedia.org/wiki/Mountain%20Wave%20Project | The Mountain Wave Project (MWP) pursues global scientific research of gravity waves and associated turbulence. MWP seeks to develop new scientific insights and knowledge through high altitude and record seeking glider flights with the goal of increasing overall flight safety and improving pilot training.
Corporate his... | Mountain Wave Project | Physics,Chemistry | 1,778 |
70,809,635 | https://en.wikipedia.org/wiki/Entoloma%20prunuloides | Entoloma prunuloides is a species of agaric (gilled mushroom) in the family Entolomataceae. It has been given the recommended English name of Mealy Pinkgill, based on its distinctive smell. The species has a European distribution, occurring mainly in agriculturally unimproved grassland. Threats to its habitat have resu... | Entoloma prunuloides | Biology | 441 |
40,881,367 | https://en.wikipedia.org/wiki/Rhodoferax | Rhodoferax is a genus of Betaproteobacteria belonging to the purple nonsulfur bacteria. Originally, Rhodoferax species were included in the genus Rhodocyclus as the Rhodocyclus gelatinous-like group. The genus Rhodoferax was first proposed in 1991 to accommodate the taxonomic and phylogenetic discrepancies arising fro... | Rhodoferax | Chemistry,Biology | 1,798 |
9,770 | https://en.wikipedia.org/wiki/Eclipse | An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial objects is known as a syzygy. An eclipse is the result of either an o... | Eclipse | Physics,Astronomy | 4,353 |
12,804,558 | https://en.wikipedia.org/wiki/Biosynthesis%20of%20doxorubicin | Doxorubicin (DXR) is a 14-hydroxylated version of daunorubicin, the immediate precursor of DXR in its biosynthetic pathway. Daunorubicin is more abundantly found as a natural product because it is produced by a number of different wild type strains of Streptomyces. In contrast, only one known non-wild type species, St... | Biosynthesis of doxorubicin | Chemistry | 3,835 |
4,899,945 | https://en.wikipedia.org/wiki/Shrink%20ray | In science fiction, a shrink ray is any device which uses energy to reduce the physical size of matter. Many are also capable of enlarging items as well. A growth ray typically only has the ability to enlarge.
Scientific
Science fiction writer and polymath Isaac Asimov wrote: Miniaturization doesn't actually make sen... | Shrink ray | Physics,Mathematics | 2,991 |
27,249,357 | https://en.wikipedia.org/wiki/Beijing%20Planetarium | The Beijing Planetarium () is a planetarium in Xicheng District, Beijing, China.
The planetarium comprises two main buildings, Building A & B. Building A, which was built in 1957, contains the Celestial Theater, an Eastern Exhibition Hall and a Western Exhibition Hall. It was the first large-scale planetarium in China... | Beijing Planetarium | Astronomy | 147 |
47,330,034 | https://en.wikipedia.org/wiki/Suillus%20triacicularis | Suillus triacicularis is a species of bolete fungus in the family Suillaceae. Described as new to science in 2014, it is found in the northwestern Himalayas, India, where it grows in association with Pinus roxburghii.
References
External links
tridentinus
Fungi described in 2014
Fungi of India
Fungus species | Suillus triacicularis | Biology | 67 |
4,354,277 | https://en.wikipedia.org/wiki/Channel%2037 | Channel 37 is an intentionally unused ultra-high frequency (UHF) television broadcasting channel by countries in most of ITU region 2 such as the United States, Canada, Mexico and Brazil. The frequency range allocated to this channel is important for radio astronomy, so all broadcasting is prohibited within a window of... | Channel 37 | Engineering | 2,023 |
6,030,254 | https://en.wikipedia.org/wiki/Digital%20backlot | A digital backlot or virtual backlot is a motion-picture set that is neither a genuine location nor a constructed studio; the shooting takes place entirely on a stage with a blank background (often a greenscreen) that will later on project an artificial environment put in during post-production. Digital backlots are ma... | Digital backlot | Technology | 508 |
2,398,362 | https://en.wikipedia.org/wiki/Eta%20Aquilae | Eta Aquilae (η Aql, η Aquilae) is a multiple star in the equatorial constellation of Aquila, the eagle. It was once part of the former constellation Antinous. Its apparent visual magnitude varies between 3.49 and 4.3, making it one of the brighter members of Aquila. Based upon parallax measurements made by the Gaia sp... | Eta Aquilae | Astronomy | 978 |
32,867,978 | https://en.wikipedia.org/wiki/H%C3%A4stens | Hästens Sängar AB, or simply Hastens (, Swedish for "The horse's" as in "the horse's beds"), is a Swedish manufacturer established in 1852, that produces and trades in high-end mattress, bed linen, bedding pillows and lifestyle accessories.
The company was founded by Pehr Adolf Janson in 1852 as a saddler business and... | Hästens | Biology | 775 |
22,761,653 | https://en.wikipedia.org/wiki/Endornaviridae | Endornaviridae is a family of viruses. Plants, fungi, and oomycetes serve as natural hosts. There are 31 species in this family, assigned to 2 genera (Alphaendornavirus and Betaendornavirus). Members of Alphaendornavirus infect plants, fungi and the oomycete Phytophthora sp., members of Betaendornavirus infect ascomyce... | Endornaviridae | Biology | 576 |
3,421,465 | https://en.wikipedia.org/wiki/Ion%20Barbu | Ion Barbu (, pen name of Dan Barbilian; 18 March 1895 –11 August 1961) was a Romanian mathematician and poet. His name is associated with the Mathematics Subject Classification number 51C05, which is a major posthumous recognition reserved only to pioneers of investigations in an area of mathematical inquiry. As a poet... | Ion Barbu | Mathematics | 2,548 |
60,263,786 | https://en.wikipedia.org/wiki/Data%20technology | Data technology (may be shortened to DataTech or DT) is the technology connected to areas such as martech or adtech. Data technology sector includes solutions for data management, and products or services that are based on data generated by both human and machines. DataTech is an emerging industry that uses Artificial ... | Data technology | Technology | 518 |
5,061,860 | https://en.wikipedia.org/wiki/Initiation%20factor | In molecular biology, initiation factors are proteins that bind to the small subunit of the ribosome during the initiation of translation, a part of protein biosynthesis.
Initiation factors can interact with repressors to slow down or prevent translation. They have the ability to interact with activators to help them ... | Initiation factor | Chemistry,Biology | 1,477 |
9,751,861 | https://en.wikipedia.org/wiki/Impromidine | Impromidine (INN) is a highly potent and specific histamine H2 receptor agonist.
It has been used diagnostically as a gastric secretion indicator.
See also
Histamine agonists
References
Imidazoles
Guanidines
Thioethers | Impromidine | Chemistry | 59 |
18,485,734 | https://en.wikipedia.org/wiki/Guanoxabenz | Guanoxabenz is a metabolite of guanabenz.
References
Alpha-2 adrenergic receptor agonists
Chloroarenes
Guanidines | Guanoxabenz | Chemistry | 39 |
1,532,268 | https://en.wikipedia.org/wiki/Epsilon%20Bo%C3%B6tis | Epsilon Boötis (ε Boötis, abbreviated Epsilon Boo, ε Boo), officially named Izar ( ), is a binary star in the northern constellation of Boötes. The star system can be viewed with the unaided eye at night, but resolving the pair with a small telescope is challenging; an aperture of or greater is required.
Nomenclature... | Epsilon Boötis | Astronomy | 965 |
725,995 | https://en.wikipedia.org/wiki/Glovebox | A glovebox (or glove box) is a sealed container that is designed to allow one to manipulate objects where a separate atmosphere is desired. Built into the sides of the glovebox are gloves arranged in such a way that the user can place their hands into the gloves and perform tasks inside the box without breaking contain... | Glovebox | Chemistry,Engineering | 946 |
78,129 | https://en.wikipedia.org/wiki/TX-2 | The MIT Lincoln Laboratory TX-2 computer was the successor to the Lincoln TX-0 and was known for its role in advancing both artificial intelligence and human–computer interaction. Wesley A. Clark was the chief architect of the TX-2.
Specifications
The TX-2 was a transistor-based computer using the then-huge amount of... | TX-2 | Technology | 282 |
8,336 | https://en.wikipedia.org/wiki/Decision%20problem | In computability theory and computational complexity theory, a decision problem is a computational problem that can be posed as a yes–no question based on the given input values. An example of a decision problem is deciding with the help of an algorithm whether a given natural number is prime. Another example is the pr... | Decision problem | Mathematics | 1,421 |
3,651,405 | https://en.wikipedia.org/wiki/Michael%20Lynch%20%28geneticist%29 | Michael Lynch (born December 6, 1951) is an American geneticist who is the Director of the Biodesign Institute for Mechanisms of Evolution at Arizona State University, Tempe, Arizona.
Biography
Lynch held a Distinguished Professorship of Evolution, Population Genetics and Genomics at Indiana University, Bloomington, I... | Michael Lynch (geneticist) | Biology | 837 |
6,643,829 | https://en.wikipedia.org/wiki/Animal%20migration%20tracking | Animal migration tracking is used in wildlife biology, conservation biology, ecology, and wildlife management to study animals' behavior in the wild. One of the first techniques was bird banding, placing passive ID tags on birds legs, to identify the bird in a future catch-and-release. Radio tracking involves attaching... | Animal migration tracking | Biology | 2,506 |
31,847,498 | https://en.wikipedia.org/wiki/Lindstr%C3%B6m%E2%80%93Gessel%E2%80%93Viennot%20lemma | In mathematics, the Lindström–Gessel–Viennot lemma provides a way to count the number of tuples of non-intersecting lattice paths, or, more generally, paths on a directed graph. It was proved by Gessel–Viennot in 1985, based on previous work of Lindström published in 1973. The lemma is named after Bernt Lindström, Ira ... | Lindström–Gessel–Viennot lemma | Mathematics | 2,040 |
356,782 | https://en.wikipedia.org/wiki/Nominal%20watt | Nominal wattage is used to simplify the measurement of the efficiency of a loudspeaker.
The impedance of a loudspeaker varies with frequency. This means that if different sine wave tones are fed into the loudspeaker at the same voltage (or the same current), the amount of electric power consumed will vary.
By convent... | Nominal watt | Physics,Mathematics | 545 |
12,843,844 | https://en.wikipedia.org/wiki/Tryptophan%20tryptophylquinone | Tryptophan tryptophylquinone (TTQ) is an enzyme cofactor, generated by posttranslational modification of amino acids within the protein. Methylamine dehydrogenase (MADH), an amine dehydrogenase, requires TTQ for its catalytic function.
See also
Amicyanin
References
Alpha-Amino acids
Amino acid derivatives
Tryptamin... | Tryptophan tryptophylquinone | Chemistry,Biology | 87 |
76,568,876 | https://en.wikipedia.org/wiki/The%20Hagedorn%20Prize | The Hagedorn Prize is an annual award within the field of medical research, specifically recognizing outstanding contributions to diabetes research and endocrinology. Named after Hans Christian Hagedorn, a renowned Danish scientist and co-founder of Nordisk Insulinlaboratorium (now part of Novo Nordisk), the prize cele... | The Hagedorn Prize | Technology | 479 |
62,086,463 | https://en.wikipedia.org/wiki/Metal%E2%80%93inorganic%20framework | Metal–inorganic frameworks (MIFs) are a class of compounds consisting of metal ions or clusters coordinated to inorganic ligands to form one-, two-, or three-dimensional structures. They are a subclass of coordination polymers, with the special feature that they are often porous. They are inorganic counterpart of Meta... | Metal–inorganic framework | Chemistry,Materials_science,Engineering | 146 |
380,532 | https://en.wikipedia.org/wiki/Biogen | Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, United States specializing in the discovery, development, and delivery of therapies for the treatment of neurological diseases to patients worldwide. Biogen operates in Argentina, Brazil, Canada, China, France, Germany, Hu... | Biogen | Biology | 3,241 |
1,750,722 | https://en.wikipedia.org/wiki/Terence%20Dickinson | Terence Dickinson (10 November 1943 – 1 February 2023) was a Canadian amateur astronomer and astrophotographer who lived near Yarker, Ontario, Canada. He was the author of 14 astronomy books for both adults and children. He was the founder and former editor of SkyNews magazine. Dickinson had been an astronomy commenta... | Terence Dickinson | Astronomy | 743 |
43,662,522 | https://en.wikipedia.org/wiki/Partial%20groupoid | In abstract algebra, a partial groupoid (also called halfgroupoid, pargoid, or partial magma) is a set endowed with a partial binary operation.
A partial groupoid is a partial algebra.
Partial semigroup
A partial groupoid is called a partial semigroup if the following associative law holds:
For all such that an... | Partial groupoid | Mathematics | 102 |
30,600,763 | https://en.wikipedia.org/wiki/Evolution%20of%20reptiles | Reptiles arose about 320 million years ago during the Carboniferous period. Reptiles, in the traditional sense of the term, are defined as animals that have scales or scutes, lay land-based hard-shelled eggs, and possess ectothermic metabolisms. So defined, the group is paraphyletic, excluding endothermic animals like ... | Evolution of reptiles | Biology | 3,036 |
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