id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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1,064,603 | https://en.wikipedia.org/wiki/Ancient%20woodland | In the United Kingdom, ancient woodland is that which has existed continuously since 1600 in England, Wales and Northern Ireland (or 1750 in Scotland). The practice of planting woodland was uncommon before those dates, so a wood present in 1600 is likely to have developed naturally.
In most ancient woods, the trees an... | Ancient woodland | Biology | 2,328 |
1,358,751 | https://en.wikipedia.org/wiki/Samuel%20Haldeman | Samuel Stehman Haldeman (August 12, 1812 – September 10, 1880) was an American naturalist and philologist.
During a long and varied career he studied, published, and lectured on geology, conchology, entomology and philology. He once confided, "I never pursue one branch of science more than ten years, but lay it aside ... | Samuel Haldeman | Biology | 1,729 |
78,653,449 | https://en.wikipedia.org/wiki/Carballeira%20de%20San%20Xusto | The Carballeira de San Xusto is an oak forest located in the parish of San Xurxo de Sacos (Cerdedo-Cotobade), on a hill above the Lérez River, near the Ria de Pontevedra, in Galicia, Spain.
Characteristics
It is a traditional gathering place and a reference for legends and old tales; it contains centuries-old oak tr... | Carballeira de San Xusto | Biology | 603 |
26,855,260 | https://en.wikipedia.org/wiki/Journal%20of%20Behavioral%20Medicine | The Journal of Behavioral Medicine is an interdisciplinary medical journal published by Springer, addressing the interactions of the behavioral sciences with other fields of medicine.
Bimonthly journals
Academic journals established in 1978
Springer Science+Business Media academic journals
English-language journals
Be... | Journal of Behavioral Medicine | Biology | 52 |
24,398,699 | https://en.wikipedia.org/wiki/C15H23N3O4S | The molecular formula C15H23N3O4S (molar mass: 341.42 g/mol, exact mass: 341.1409 u) may refer to:
Ciclacillin
Sulpiride
Levosulpiride
Molecular formulas | C15H23N3O4S | Physics,Chemistry | 55 |
44,529,226 | https://en.wikipedia.org/wiki/Nitrogen%20fixation%20package | A nitrogen fixation package is a piece of research equipment for studying nitrogen fixation in plants. One product of this kind, the Q-Box NF1LP made by Qubit Systems, operates by measuring the hydrogen (H2) given off in the nitrogen-fixing chemical reaction enabled by nitrogenase enzymes.
Principle of operation
Nitro... | Nitrogen fixation package | Chemistry,Biology | 495 |
35,880,640 | https://en.wikipedia.org/wiki/Luminous%20at%20Darling%20Quarter | Luminous Interactive is a digital art platform created by Lendlease in collaboration with Ramus Illumination. It officially opened on 18 May 2012 in the Darling Quarter Precinct, Sydney central business district (CBD).
Luminous at Darling Quarter is a permanent platform solely for illuminated digital 'art' – both ani... | Luminous at Darling Quarter | Technology | 449 |
35,152,779 | https://en.wikipedia.org/wiki/Personal%20RF%20safety%20monitor | Electromagnetic field monitors measure the exposure to electromagnetic radiation in certain ranges of the
electromagnetic spectrum. This article concentrates on monitors used in the telecommunication industry, which measure exposure to radio spectrum radiation. Other monitors, like extremely low frequency monitors whic... | Personal RF safety monitor | Physics,Technology,Engineering | 1,451 |
77,983,529 | https://en.wikipedia.org/wiki/Actinide%20contraction | The actinide contraction is the greater-than-expected decrease in atomic radii and ionic radii of the elements in the actinide series, from left to right.
Description
It is more pronounced than the lanthanide contraction because the 5f electrons are less effective at shielding than 4f electrons. It is caused by the p... | Actinide contraction | Physics,Chemistry,Materials_science | 273 |
33,705,242 | https://en.wikipedia.org/wiki/Rhamnolipid | Rhamnolipids are a class of glycolipid produced by Pseudomonas aeruginosa, amongst other organisms, frequently cited as bacterial surfactants. They have a glycosyl head group, in this case a rhamnose moiety, and a 3-(hydroxyalkanoyloxy)alkanoic acid (HAA) fatty acid tail, such as 3-hydroxydecanoic acid.
Specifically t... | Rhamnolipid | Chemistry | 2,976 |
78,856,281 | https://en.wikipedia.org/wiki/4-Mercaptobenzoic%20acid | 4-Mercaptobenzoic acid (p-mercaptobenzoic acid, ''p''-MBA) is an organosulfur compound with the formula para-. It is used as a ligand in thiolate-protected gold cluster compounds, such as .
See also
Gold cluster
References
Benzoic acids
Thiols | 4-Mercaptobenzoic acid | Chemistry | 73 |
34,564,320 | https://en.wikipedia.org/wiki/George%20McMurtry%20%28engineer%29 | George Cannon McMurtry (14 November 1867 – 29 September 1918) was a New Zealand scientist, smelting engineer, mining manager and consultant, orchardist. He was born in Camberwell, Surrey, England on 14 November 1867.
References
1867 births
1918 deaths
New Zealand chemical engineers
Mining engineers
New Zealand orchar... | George McMurtry (engineer) | Engineering | 83 |
1,980,416 | https://en.wikipedia.org/wiki/History%20of%20information%20technology%20auditing | Information technology auditing (IT auditing) began as electronic data process (EDP) auditing and developed largely as a result of the rise in technology in accounting systems, the need for IT control, and the impact of computers on the ability to perform attestation services. The last few years have been an exciting t... | History of information technology auditing | Technology | 1,220 |
50,630,768 | https://en.wikipedia.org/wiki/Ogle%20app | Ogle is a free smartphone based social media application. It is available for iOS and Android. Ogle acts like a school wide forum that lets users and users' classmates share and interact. Users can share photos, videos, questions, even thoughts and watch submissions grow in popularity as other users vote and comment on... | Ogle app | Technology | 720 |
22,934 | https://en.wikipedia.org/wiki/Probability | Probability is the branch of mathematics and statistics concerning events and numerical descriptions of how likely they are to occur. The probability of an event is a number between 0 and 1; the larger the probability, the more likely an event is to occur. This number is often expressed as a percentage (%), ranging fr... | Probability | Physics,Mathematics | 4,263 |
8,531,319 | https://en.wikipedia.org/wiki/Favard%20constant | In mathematics, the Favard constant, also called the Akhiezer–Krein–Favard constant, of order r is defined as
This constant is named after the French mathematician Jean Favard, and after the Soviet mathematicians Naum Akhiezer and Mark Krein.
Particular values
Uses
This constant is used in solutions of several ex... | Favard constant | Mathematics | 129 |
27,524,533 | https://en.wikipedia.org/wiki/Jeremy%20O%27Brien | Jeremy O'Brien (born 1975, Australia) is a physicist who researches in quantum optics, optical quantum metrology and quantum information science. He co-founded and is CEO of the quantum computing firm PsiQuantum. Formerly, he was Professorial Research Fellow in Physics and Electrical Engineering at the University of B... | Jeremy O'Brien | Physics | 232 |
5,917,239 | https://en.wikipedia.org/wiki/Schoenus | Schoenus (; , schoinos, "rush rope"; , "river-measure") was an ancient Egyptian, Greek and Roman unit of length and area based on the knotted cords first used in Egyptian surveying.
Length
The Greeks, who adopted it from the Egyptians, generally considered the schoinos equal to 40 stades, but neither the schoinos nor... | Schoenus | Mathematics | 439 |
596,600 | https://en.wikipedia.org/wiki/Relatively%20compact%20subspace | In mathematics, a relatively compact subspace (or relatively compact subset, or precompact subset) of a topological space is a subset whose closure is compact.
Properties
Every subset of a compact topological space is relatively compact (since a closed subset of a compact space is compact). And in an arbitrary topol... | Relatively compact subspace | Mathematics | 439 |
5,264,264 | https://en.wikipedia.org/wiki/Erwin%20McManus | Erwin Raphael McManus (born August 28, 1958) is an author, filmmaker, and fashion designer. He is the lead pastor of Mosaic, a megachurch based in Los Angeles. Erwin is a speaker on issues related to postmodernism and postmodern Christianity, and also writes and lectures on culture, identity, change, and other topics.
... | Erwin McManus | Engineering | 1,281 |
21,631,514 | https://en.wikipedia.org/wiki/Late%20protein | A late protein is a viral protein that is formed after replication of the virus. One example is VP4 from simian virus 40 (SV40).
In Human papillomaviruses
In Human papillomavirus (HPV), two late proteins are involved in capsid formation: a major (L1) and a minor (L2) protein, in the approximate proportion 95:5%. L1 f... | Late protein | Chemistry,Biology | 411 |
51,226,280 | https://en.wikipedia.org/wiki/List%20of%20Lithocarpus%20species | Plants of the World Online recognises about 330 accepted taxa (of species and infraspecific names) in the plant genus Lithocarpus of the beech family Fagaceae. Individual species are described in detail on www.asianfagaceae.com.
A
Lithocarpus acuminatus
Lithocarpus aggregatus
Lithocarpus ailaoensis
Lithocarp... | List of Lithocarpus species | Biology | 2,678 |
6,440,859 | https://en.wikipedia.org/wiki/Protection%20Profile | A Protection Profile (PP) is a document used as part of the certification process according to ISO/IEC 15408 and the Common Criteria (CC). As the generic form of a Security Target (ST), it is typically created by a user or user community and provides an implementation independent specification of information assurance ... | Protection Profile | Engineering | 724 |
892,612 | https://en.wikipedia.org/wiki/Blast%20injury | A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. Blast injuries occur with the detonation of high-order explosives as well as the deflagration of low order explosives. These injuries are compounded when the explosion occurs in a confined space.
Classificat... | Blast injury | Chemistry | 1,995 |
15,966,621 | https://en.wikipedia.org/wiki/Z-SAN | Z-SAN is a proprietary type of storage area network licensed by Zetera corporation. Z-SAN hardware is bundled with a modified version of SAN-FS, which is a shared disk file system driver and management software product SAN File System (SFS) made by DataPlow. The shared disk file system allows multiple computers to ac... | Z-SAN | Technology | 357 |
24,019,665 | https://en.wikipedia.org/wiki/C16H13O7 | {{DISPLAYTITLE:C16H13O7}}
The molecular formula C16H13O7 (or C16H13O7+, molar mass : 317.27 g/mol, exact mass : 317.066127317) or C16H13ClO7 (exact mass : 352.03498) may refer to:
Petunidin, an anthocyanidin
Pulchellidin, an anthocyanidin | C16H13O7 | Chemistry | 102 |
66,511,145 | https://en.wikipedia.org/wiki/Makita%20AWS | Makita Auto-Start Wireless System (AWS, 2017‒), Festool Autostart (2018‒) and Bosch Wireless Auto-Start (2024‒) are Bluetooth-based systems for remotely starting industrial vacuum cleaners from power tools. Several power tools, cordless battery packs, and industrial vacuum cleaners ship with wireless connectivity, mos... | Makita AWS | Technology | 1,548 |
5,264,737 | https://en.wikipedia.org/wiki/Decay%20scheme | The decay scheme of a radioactive substance is a graphical presentation of all the transitions occurring in a decay, and of their relationships. Examples are shown below.
It is useful to think of the decay scheme as placed in a coordinate system, where the vertical axis is energy, increasing from bottom to top, and th... | Decay scheme | Physics,Chemistry | 757 |
54,558,969 | https://en.wikipedia.org/wiki/Seventh%20power | In arithmetic and algebra, the seventh power of a number n is the result of multiplying seven instances of n together. So:
.
Seventh powers are also formed by multiplying a number by its sixth power, the square of a number by its fifth power, or the cube of a number by its fourth power.
The sequence of seventh powers... | Seventh power | Mathematics | 487 |
24,306,227 | https://en.wikipedia.org/wiki/Galactooligosaccharide | Galactooligosaccharides (GOS), also known as oligogalactosyllactose, oligogalactose, oligolactose or transgalactooligosaccharides (TOS), belong to the group of prebiotics. Prebiotics are defined as non-digestible food ingredients that beneficially affect the host by stimulating the growth and/or activity of beneficial ... | Galactooligosaccharide | Chemistry | 781 |
40,604,563 | https://en.wikipedia.org/wiki/Rosiridin | Rosiridin is a chemical compound that has been isolated from Rhodiola sachalinensis. Rosiridin can inhibit monoamine oxidases A and B, possibly meaning that the compound could help in the treatment of depression and senile dementia.
References
Crassulaceae
Terpenoid glycosides | Rosiridin | Chemistry | 68 |
764,833 | https://en.wikipedia.org/wiki/Poiseuille | The poiseuille (symbol Pl) has been proposed as a derived SI unit of dynamic viscosity, named after the French physicist Jean Léonard Marie Poiseuille (1797–1869).
In practice the unit has never been widely accepted and most international standards bodies do not include the poiseuille in their list of units. The thir... | Poiseuille | Mathematics | 196 |
73,789,728 | https://en.wikipedia.org/wiki/Blow%20Up%20%28Australian%20TV%20series%29 | Blow Up is an Australian reality television show based on a Dutch format, in which ten artists compete to create the best balloon artworks for a $100,000 prize. It is hosted by Stephen Curry and Becky Lucas and judged by professional balloon artist Chris Adamo. The series premiered on 15 May 2023 on the Seven Network.
... | Blow Up (Australian TV series) | Chemistry | 405 |
3,003,614 | https://en.wikipedia.org/wiki/Bis%282-ethylhexyl%29%20phthalate | Bis(2-ethylhexyl) phthalate (di-2-ethylhexyl phthalate, diethylhexyl phthalate, diisooctyl phthalate, DEHP; incorrectly — dioctyl phthalate, DIOP) is an organic compound with the formula C6H4(CO2C8H17)2. DEHP is the most common member of the class of phthalates, which are used as plasticizers. It is the diester of phth... | Bis(2-ethylhexyl) phthalate | Chemistry | 3,469 |
31,149,453 | https://en.wikipedia.org/wiki/Silicon%20Border | Silicon Border Holding Company, LLC is a commercial development site designed to produce semi-conductors for consumers in North America. The site is located in Mexicali, Baja California, along the southwestern border of the United States of America and Mexico. The site began manufacturing semiconductors between 2004-2... | Silicon Border | Technology | 389 |
75,565,886 | https://en.wikipedia.org/wiki/Ethiopian%20Electric%20Power%20Headquarters | Ethiopian Electric Power Headquarters is a 62-storey office building under construction in the Kirkos district of Addis Ababa, the capital and largest city of Ethiopia. The building is located right on Mexico Square, and once completed, it is expected to become the tallest building both in East Africa and sub-Saharan A... | Ethiopian Electric Power Headquarters | Engineering | 359 |
38,761,100 | https://en.wikipedia.org/wiki/Tertiary%20%28chemistry%29 | Tertiary is a term used in organic chemistry to classify various types of compounds (e. g. alcohols, alkyl halides, amines) or reactive intermediates (e. g. alkyl radicals, carbocations).
See also
Primary (chemistry)
Secondary (chemistry)
Quaternary (chemistry)
References
Chemical nomenclature | Tertiary (chemistry) | Chemistry | 72 |
1,013,768 | https://en.wikipedia.org/wiki/LAPACK | LAPACK ("Linear Algebra Package") is a standard software library for numerical linear algebra. It provides routines for solving systems of linear equations and linear least squares, eigenvalue problems, and singular value decomposition. It also includes routines to implement the associated matrix factorizations such as... | LAPACK | Mathematics | 1,248 |
326,566 | https://en.wikipedia.org/wiki/Concertina%20wire | Concertina wire or Dannert wire is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape) and steel pickets, it is most often used to form military-style wire obstacles. It is also used in non-military set... | Concertina wire | Engineering | 974 |
37,211,063 | https://en.wikipedia.org/wiki/Theta%20Indi | Theta Indi (θ Ind) is a binary star in the constellation Indus. Its apparent magnitude is 4.40 and it is approximately 98.8 light years away based on parallax. The smaller companion, B, has a spectral type of G0V (yellow main-sequence) and an apparent magnitude of 7.18 at a separation of 6.71″. Recent observations sugg... | Theta Indi | Astronomy | 141 |
30,594,071 | https://en.wikipedia.org/wiki/Alternative%20Splicing%20and%20Transcript%20Diversity%20database | The Alternative Splicing and Transcript Diversity database (ASTD) was a database of transcript variants maintained by the European Bioinformatics Institute from 2008 to 2012. It contained transcription initiation, polyadenylation and splicing variant data.
See also
Alternative Splicing Annotation Project
AspicDB
RN... | Alternative Splicing and Transcript Diversity database | Chemistry,Biology | 123 |
74,330,503 | https://en.wikipedia.org/wiki/Jennifer%20Waters | Jennifer Waters is an American scientist who is a Lecturer on Cell Biology, the Director of the Core for Imaging Technology & Education(CITE; formally the NIC) and the Director of the Cell Biology Microscopy Facility at Harvard Medical School. She is an imaging expert and educator whose efforts to educate life scientis... | Jennifer Waters | Chemistry | 573 |
36,233,960 | https://en.wikipedia.org/wiki/Feed%20ramp | A feed ramp is a basic feature of many breech loading cartridge firearm designs. It is a tightly machined and polished piece of metal which guides a cartridge from the top of the magazine into the firing chamber of the barrel. The feed ramp may be part of the magazine (AR-7), part of the receiver or frame (Mauser C96),... | Feed ramp | Technology | 297 |
63,411,811 | https://en.wikipedia.org/wiki/Spendor | Spendor is a British loudspeaker manufacturing company founded in 1969 by audio engineer Spencer Hughes (1924–1983) and his wife Dorothy. It is located in East Sussex. The name was derived from the first names of both.
Research in the 1960s
Spencer Hughes worked in an investigation team of the BBC research department ... | Spendor | Engineering | 801 |
13,276,958 | https://en.wikipedia.org/wiki/Initial%20value%20formulation%20%28general%20relativity%29 | The initial value formulation of general relativity is a reformulation of Albert Einstein's theory of general relativity that describes a universe evolving over time.
Each solution of the Einstein field equations encompasses the whole history of a universe – it is not just some snapshot of how things are, but a whole ... | Initial value formulation (general relativity) | Physics | 737 |
20,726,862 | https://en.wikipedia.org/wiki/Digital%20citizen | The term digital citizen is used with different meanings. According to the definition provided by Karen Mossberger, one of the authors of Digital Citizenship: The Internet, Society, and Participation, digital citizens are "those who use the internet regularly and effectively." In this sense, a digital citizen is a pers... | Digital citizen | Technology | 6,575 |
304,942 | https://en.wikipedia.org/wiki/Heart%20rate | Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm). The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide. It is also modulated by numerous factors, including (but n... | Heart rate | Physics,Mathematics | 8,476 |
60,110,175 | https://en.wikipedia.org/wiki/2%2C3-Dichlorobutadiene | 2,3-Dichlorobutadiene is a chlorinated derivative of butadiene. This colorless liquid is prone to polymerization, more so than 2-chlorobutadiene. It is used to produce specialized neoprene rubbers.
It can be prepared by the copper-catalyzed isomerization of dichlorobutynes. Alternatively dehydrochlorination of 2,3,... | 2,3-Dichlorobutadiene | Chemistry,Materials_science | 181 |
3,850,023 | https://en.wikipedia.org/wiki/Boyce%E2%80%93Codd%20normal%20form | Boyce–Codd normal form (BCNF or 3.5NF) is a normal form used in database normalization. It is a slightly stricter version of the third normal form (3NF). By using BCNF, a database will remove all redundancies based on functional dependencies.
History
Edgar F. Codd released his original article "A Relational Model of D... | Boyce–Codd normal form | Mathematics | 2,055 |
77,655,555 | https://en.wikipedia.org/wiki/Paleobiota%20of%20the%20Green%20River%20Formation | The Green River Formation is a geological formation located in the Intermountain West of the United States, in the states of Colorado, Utah, and Wyoming. It comprises sediments deposited during the Early Eocene in a series of large freshwater lakes: Lake Gosiute, Lake Uinta, and Fossil Lake (the last containing Fossil ... | Paleobiota of the Green River Formation | Biology | 768 |
14,359 | https://en.wikipedia.org/wiki/Huygens%E2%80%93Fresnel%20principle | The Huygens–Fresnel principle (named after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel) states that every point on a wavefront is itself the source of spherical wavelets, and the secondary wavelets emanating from different points mutually interfere. The sum of these spherical wavelets ... | Huygens–Fresnel principle | Physics,Chemistry,Materials_science | 2,738 |
16,782,315 | https://en.wikipedia.org/wiki/HD%20183263%20b | HD 183263 b is an extrasolar planet orbiting the star HD 183263. This planet has a minimum mass of 3.6 times more than Jupiter and takes 625 days to orbit the star. The planet was discovered on January 25, 2005 using multiple Doppler measurements of five nearby FGK main-sequence stars and subgiants obtained during the ... | HD 183263 b | Astronomy | 248 |
12,274,025 | https://en.wikipedia.org/wiki/Available%20expression | In the field of compiler optimizations, available expressions is an analysis algorithm that determines for each point in the program the set of expressions that need not be recomputed. Those expressions are said to be available at such a point. To be available on a program point, the operands of the expression should n... | Available expression | Technology | 266 |
61,098,866 | https://en.wikipedia.org/wiki/Circular%20measure | A circular measure was used in comparing circular cross-sections, e.g., of wires, etc. A circular unit of the ares is the area of the circle whose diameter is one linear unit.
For example, 1 circular mil is equivalent to 0.7854 square mil in area, 1 circular millimeter = 1550 circular mils = 0.7854 square millimeter. ... | Circular measure | Mathematics | 84 |
21,844,112 | https://en.wikipedia.org/wiki/Impression%20formation | Impression formation in social psychology refers to the processes by which different pieces of knowledge about another are combined into a global or summary impression. Social psychologist Solomon Asch is credited with the seminal research on impression formation and conducted research on how individuals integrate info... | Impression formation | Biology | 3,256 |
51,729,450 | https://en.wikipedia.org/wiki/Snap%20Inc. | Snap Inc. is an American technology company, founded on September 16, 2011, by Evan Spiegel, Bobby Murphy, and Reggie Brown based in Santa Monica, California. The company developed and maintains technological products and services, namely Snapchat, Spectacles, and Bitmoji. The company was named Snapchat Inc. at its inc... | Snap Inc. | Technology | 3,249 |
58,176,588 | https://en.wikipedia.org/wiki/Joint%20Global%20Ocean%20Flux%20Study | The Joint Global Ocean Flux Study (JGOFS) was an international research programme on the fluxes of carbon between the atmosphere and ocean, and within the ocean interior. Initiated by the Scientific Committee on Oceanic Research (SCOR), the programme ran from 1987 through to 2003, and became one of the early core proje... | Joint Global Ocean Flux Study | Physics,Chemistry,Environmental_science | 428 |
38,525,554 | https://en.wikipedia.org/wiki/5052%20aluminium%20alloy | 5052 is an aluminium–magnesium alloy, primarily alloyed with magnesium and chromium. 5052 is not a heat treatable aluminum alloy, but can be hardened through cold working.
Chemical properties
The alloy composition of 5052 is:
Magnesium - 2.2%-2.8% by weight
Chromium - 0.15%-0.35% maximum
Copper - 0.1% maximum
Iron... | 5052 aluminium alloy | Chemistry | 256 |
2,194,910 | https://en.wikipedia.org/wiki/4-Aminopyridine | 4-Aminopyridine (4-AP) is an organic compound with the chemical formula . It is one of the three isomeric aminopyridines. It is used as a research tool in characterizing subtypes of the potassium channel. It has also been used as a drug, to manage some of the symptoms of multiple sclerosis, and is indicated for symp... | 4-Aminopyridine | Chemistry,Biology | 1,304 |
187,398 | https://en.wikipedia.org/wiki/Cisco%20IOS | The Internetworking Operating System (IOS) is a family of proprietary network operating systems used on several router and network switch models manufactured by Cisco Systems. The system is a package of routing, switching, internetworking, and telecommunications functions integrated into a multitasking operating system... | Cisco IOS | Engineering | 3,124 |
1,761,921 | https://en.wikipedia.org/wiki/Polar%20high | In meteorology, the polar highs are areas of high atmospheric pressure, sometimes similar to anticyclones, around the North and South Poles; the south polar high (Antarctic high) being the stronger one because land gains and loses heat more effectively than sea, which the north has much less of. The cold temperatures ... | Polar high | Physics | 295 |
1,336,470 | https://en.wikipedia.org/wiki/Clinker%20%28boat%20building%29 | Clinker-built, also known as lapstrake-built, is a method of boat building in which the edges of longitudinal (lengthwise-running) hull planks overlap each other. Where necessary in larger craft, shorter hull planks can be joined end to end, creating a longer hull plank (strake).
The technique originated in Nordic shi... | Clinker (boat building) | Engineering | 4,536 |
2,156,081 | https://en.wikipedia.org/wiki/One%20Laptop%20per%20Child | One Laptop per Child (OLPC) was a non-profit initiative that operated from 2005 to 2014 with the goal of transforming education for children around the world by creating and distributing educational devices for the developing world, and by creating software and content for those devices.
When the program launched, the... | One Laptop per Child | Technology | 6,584 |
77,956,445 | https://en.wikipedia.org/wiki/Thuchomyces | Thuchomyces (sometimes mistakenly called “Thucomyces”) is a genus of Archean fossils from the Witwatersrand of South Africa, and is the earliest macroscopic land life known. The generic name derives from thucholite, the carbonaceous material which Thuchomyces is preserved in, and the Ancient Greek word "myces", meaning... | Thuchomyces | Biology | 473 |
59,403,236 | https://en.wikipedia.org/wiki/Morteza%20Gharib | Morteza (Mory) Gharib () (born December 9, 1952) is the Hans W. Liepmann Professor of Aeronautics and Bio-Inspired Engineering at Caltech.
Gharib was elected a member of the National Academy of Engineering in 2015 for contributions to fluid flow diagnostics and imagery, and engineering of bioinspired devices and pheno... | Morteza Gharib | Chemistry | 355 |
48,428,998 | https://en.wikipedia.org/wiki/Tricholoma%20busuense | Tricholoma busuense is an agaric fungus of the genus Tricholoma. Found in Papua New Guinea, it was described as new to science in 1994 by English mycologist E.J.H. Corner.
See also
List of Tricholoma species
References
busuense
Fungi described in 1994
Fungi of New Guinea
Taxa named by E. J. H. Corner
Fungus species | Tricholoma busuense | Biology | 84 |
64,653,862 | https://en.wikipedia.org/wiki/Cyril%20Hazard | Cyril Hazard is a British astronomer. He is known for revolutionising quasar observation with John Bolton in 1962. His work allowed other astronomers to find redshifts from the emission lines from other radio sources.
Early work
Cyril Hazard was born on 18th March 1928 in No.6, Flosh Cottages, Cleator, Cumberland.
Cy... | Cyril Hazard | Astronomy | 399 |
34,793,528 | https://en.wikipedia.org/wiki/Telecommunications%20billing | Telecommunications billing is the group of processes of communications service providers that are responsible to collect consumption data, calculate charging and billing information, produce bills to customers, process their payments and manage debt collection.
A telecommunications billing system is an enterprise appl... | Telecommunications billing | Technology | 838 |
70,458,075 | https://en.wikipedia.org/wiki/Hexenuronic%20acid | Hexenuronic acid (HexA) is an organic compound with the formula C13H20O10. It is an unsaturated sugar produced during the kraft process in the creation of wood pulp.
Kraft process
During the kraft process, which is the turning of wood into wood pulp for papermaking, wood chips are treated with sodium hydroxide and so... | Hexenuronic acid | Chemistry | 393 |
16,868,590 | https://en.wikipedia.org/wiki/Cumberland%20Pontoons | Cumberland pontoons were folding pontoon bridges developed during the American Civil War to facilitate the movement of Union forces across the rivers of the Mid-South as the Federal forces advanced southward through Tennessee and Georgia.
Early pontoon bridges during the Civil War were heavy and awkward, and required... | Cumberland Pontoons | Engineering | 522 |
11,484,716 | https://en.wikipedia.org/wiki/Soil%20vapor%20extraction | Soil vapor extraction (SVE) is a physical treatment process for in situ remediation of volatile contaminants in vadose zone (unsaturated) soils (EPA, 2012). SVE (also referred to as in situ soil venting or vacuum extraction) is based on mass transfer of contaminant from the solid (sorbed) and liquid (aqueous or non-aq... | Soil vapor extraction | Chemistry,Engineering,Environmental_science | 2,036 |
31,277,386 | https://en.wikipedia.org/wiki/John%20R.%20Isbell | John Rolfe Isbell (October 27, 1930 – August 6, 2005) was an American mathematician. For many years he was a professor of mathematics at the University at Buffalo (SUNY).
Biography
Isbell was born in Portland, Oregon, the son of an army officer from Isbell, a town in Franklin County, Alabama. He attended several under... | John R. Isbell | Mathematics | 603 |
43,569,494 | https://en.wikipedia.org/wiki/Maurandya%20scandens | Maurandya scandens, also known as trailing snapdragon and snapdragon vine, is a climbing herbaceous perennial native to Mexico, with snapdragon-like flowers and untoothed leaves. It is grown as an ornamental plant in many parts of the world, and has commonly escaped from cultivation to become naturalized. Other names f... | Maurandya scandens | Biology | 617 |
3,616,959 | https://en.wikipedia.org/wiki/Gonioreflectometer | A gonioreflectometer is a device for measuring a bidirectional reflectance distribution function (BRDF).
The device consists of a light source illuminating the material to be measured and a sensor that captures light reflected from that material. The light source should be able to illuminate and the sensor should be a... | Gonioreflectometer | Technology,Engineering | 406 |
255,432 | https://en.wikipedia.org/wiki/Honeyguide | Honeyguides (family Indicatoridae) are a family of birds in the order Piciformes. They are also known as indicator birds, or honey birds, although the latter term is also used more narrowly to refer to species of the genus Prodotiscus. They have an Old World tropical distribution, with the greatest number of species in... | Honeyguide | Biology | 1,023 |
2,386,081 | https://en.wikipedia.org/wiki/Dentine%20bonding%20agents | Also known as a "bonderizer" bonding agents (spelled dentin bonding agents in American English) are resin materials used to make a dental composite filling material adhere to both dentin and enamel.
Bonding agents are often methacrylates with some volatile carrier and solvent like acetone. They may also contain diluen... | Dentine bonding agents | Physics,Chemistry,Materials_science,Engineering | 2,027 |
213,521 | https://en.wikipedia.org/wiki/Lick%20Observatory | The Lick Observatory is an astronomical observatory owned and operated by the University of California. It is on the summit of Mount Hamilton, in the Diablo Range just east of San Jose, California, United States. The observatory is managed by the University of California Observatories, with headquarters on the Universi... | Lick Observatory | Astronomy | 2,383 |
32,903,787 | https://en.wikipedia.org/wiki/Eden%20Landing%20Ecological%20Reserve | Eden Landing Ecological Reserve is a nature reserve in Hayward and Union City, California, on the eastern shore of San Francisco Bay. The reserve is managed by the California Department of Fish and Game and includes of former industrial salt ponds now used as a low salinity waterbird habitat.
Background
The reserve l... | Eden Landing Ecological Reserve | Chemistry,Engineering | 336 |
49,779,115 | https://en.wikipedia.org/wiki/Prior-free%20mechanism | A prior-free mechanism (PFM) is a mechanism in which the designer does not have any information on the agents' valuations, not even that they are random variables from some unknown probability distribution.
A typical application is a seller who wants to sell some items to potential buyers. The seller wants to price th... | Prior-free mechanism | Mathematics | 1,343 |
68,448,599 | https://en.wikipedia.org/wiki/Fungus%20pocket | Fungus pockets are any of various convergently evolved inoculum-retention and -cultivation organs in a wide range of insect taxa. They are generally divided into mycangia (or "mycetangia") and infrabuccal pockets.
Fungus pockets are found in ambrosia beetles, bark beetles, termites and attine ants.
References
Insect... | Fungus pocket | Biology | 82 |
23,815,973 | https://en.wikipedia.org/wiki/Music%20Encoding%20Initiative | The Music Encoding Initiative (MEI) is an open-source effort to create a system for representation of musical documents in a machine-readable structure. MEI closely mirrors work done by text scholars in the Text Encoding Initiative (TEI) and while the two encoding initiatives are not formally related, they share many c... | Music Encoding Initiative | Technology | 411 |
51,235,898 | https://en.wikipedia.org/wiki/Fractional%20synthetic%20rate | A fractional synthetic rate (FSR) is the rate at which a precursor compound is incorporated into a product per unit of product mass. The metric has been used to estimate the rate at which proteins, lipids, and lipoproteins are synthesized within humans and other animals. The formula used to calculate the FSR from a sta... | Fractional synthetic rate | Chemistry,Mathematics,Biology | 85 |
78,378,854 | https://en.wikipedia.org/wiki/NGC%202550A | NGC2550A is a spiral galaxy in the constellation of Camelopardalis. Its velocity with respect to the cosmic microwave background is 3670 ± 10km/s, which corresponds to a Hubble distance of . The discovery of this galaxy is credited to Philip C. Keenan, in his paper Studies of Extra-Galactic Nebulae. Part I: Determinati... | NGC 2550A | Astronomy | 263 |
78,790,007 | https://en.wikipedia.org/wiki/Great%20Comet%20of%20390 | The Great Comet of 390 AD, also known as C/390 Q1 by its modern designation, was a comet that appeared very bright in the night sky. It was recorded prominently in ancient Chinese and Korean texts, particularly the Chén Shū.
Discovery and observations
No surviving contemporary records of the comet are known. The earl... | Great Comet of 390 | Astronomy | 258 |
26,980,274 | https://en.wikipedia.org/wiki/Stephen%20J.%20Lippard | Stephen James Lippard (born October 12, 1940) is the Arthur Amos Noyes Emeritus Professor of Chemistry at the Massachusetts Institute of Technology. He is considered one of the founders of bioinorganic chemistry, studying the interactions of nonliving substances such as metals with biological systems.
He is also consi... | Stephen J. Lippard | Chemistry | 2,794 |
10,869 | https://en.wikipedia.org/wiki/Frequentist%20probability | Frequentist probability or frequentism is an interpretation of probability; it defines an event's probability as the limit of its relative frequency in infinitely many trials (the long-run probability).
Probabilities can be found (in principle) by a repeatable objective process (and are thus ideally devoid of opinion).... | Frequentist probability | Mathematics | 1,794 |
58,630,568 | https://en.wikipedia.org/wiki/Knee-chest%20position | The knee-chest position or genupectoral position is a position used in a number of medical situations including gynecological examination and surgery, lumbar spine surgery, repair of vesico-vaginal fistula (VVF) by Sims's saucerisation procedure, labor and delivery for which it is recommended in those with a cord prola... | Knee-chest position | Biology | 98 |
78,668,488 | https://en.wikipedia.org/wiki/NGC%204632 | NGC4632 is a spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background for is , which corresponds to a Hubble distance of . However, 15 non-redshift measurements give a much closer distance of . It was discovered by German-British astronomer William Herschel on 22 Februar... | NGC 4632 | Astronomy | 275 |
69,436,351 | https://en.wikipedia.org/wiki/Gliese%20367%20b | Gliese 367 b, formally named Tahay, is a sub-Earth exoplanet orbiting the red dwarf star Gliese 367 (GJ 367), from Earth in the constellation of Vela. The exoplanet takes just 7.7 hours to orbit its star, one of the shortest orbits of any planet.
, Gliese 367 b is the smallest known exoplanet within 10 parsecs of the... | Gliese 367 b | Astronomy | 580 |
44,981,423 | https://en.wikipedia.org/wiki/Central%20Anatolia%20region%20%28statistical%29 | The Central Anatolia Region (Turkish: Orta Anadolu Bölgesi) (TR7) is a statistical region in Turkey.
Subregions and provinces
Kırıkkale Subregion (TR71)
Kırıkkale Province (TR711)
Aksaray Province (TR712)
Niğde Province (TR713)
Nevşehir Province (TR714)
Kırşehir Province (TR715)
Kayseri Subregion (TR72)
Kays... | Central Anatolia region (statistical) | Mathematics | 178 |
33,794,361 | https://en.wikipedia.org/wiki/Antonio%20Nieto | Antonio Nieto (born September 1967) is an Earth Systems and Mining engineer.
Career
Prof. Dr. Nieto is Director of the FLSmidth Mining and Minerals Technology and Research Center located in Salt Lake City, USA. Previously, Dr. Nieto served as Professor and JCI Chair in Minerals Resources and Reserves at The School of... | Antonio Nieto | Engineering | 338 |
60,030,692 | https://en.wikipedia.org/wiki/Packaging%20waste | Packaging waste, the part of the waste that consists of packaging and packaging material, is a major part of the total global waste, and the major part of the packaging waste consists of single-use plastic food packaging, a hallmark of throwaway culture. Notable examples for which the need for regulation was recognized... | Packaging waste | Physics | 3,063 |
2,212,867 | https://en.wikipedia.org/wiki/Detailed%20balance | The principle of detailed balance can be used in kinetic systems which are decomposed into elementary processes (collisions, or steps, or elementary reactions). It states that at equilibrium, each elementary process is in equilibrium with its reverse process.
History
The principle of detailed balance was explicitly i... | Detailed balance | Physics,Chemistry,Mathematics | 4,096 |
40,769 | https://en.wikipedia.org/wiki/Balancing%20network | In a hybrid set, hybrid coil, or resistance hybrid, balancing network is a circuit used to match, i.e., to balance, the impedance of a uniform transmission line, (e.g., a twisted metallic pair, coaxial cable, etc.) over a selected range of frequencies. A balancing network is required to ensure isolation between the two... | Balancing network | Engineering | 153 |
53,163,575 | https://en.wikipedia.org/wiki/Avinash%20Kumar%20Agarwal | Avinash Kumar Agarwal (born 22 August 1972) is director of Indian Institute of Technology, Jodhpur. He is an Indian mechanical engineer, tribologist and a professor at the Department of Mechanical Engineering of the Indian Institute of Technology, Kanpur. He is known for his studies on internal combustion engines, Emi... | Avinash Kumar Agarwal | Materials_science | 3,545 |
9,783,078 | https://en.wikipedia.org/wiki/Proteins%40home | proteins@home was a volunteer computing project that used the BOINC architecture. The project was run by the Department of Biology at . The project began on December 28, 2006 and ended in June 2008.
Purpose
proteins@home was a large-scale non-profit protein structure prediction project utilizing volunteer computing t... | Proteins@home | Chemistry,Technology | 325 |
7,146,636 | https://en.wikipedia.org/wiki/Hexabromocyclododecane | Hexabromocyclododecane (HBCD or HBCDD) is a brominated flame retardant. It consists of twelve carbon, eighteen hydrogen, and six bromine atoms tied to the ring. Its primary application is in extruded (XPS) and expanded (EPS) polystyrene foam used as thermal insulation in construction. Other uses are upholstered furnitu... | Hexabromocyclododecane | Chemistry | 1,524 |
880,483 | https://en.wikipedia.org/wiki/Self%20number | In number theory, a self number or Devlali number in a given number base is a natural number that cannot be written as the sum of any other natural number and the individual digits of . 20 is a self number (in base 10), because no such combination can be found (all give a result less than 20; all other give a resul... | Self number | Mathematics | 566 |
16,854,527 | https://en.wikipedia.org/wiki/Separoid | In mathematics, a separoid is a binary relation between disjoint sets which is stable as an ideal in the canonical order induced by inclusion. Many mathematical objects which appear to be quite different, find a common generalisation in the framework of separoids; e.g., graphs, configurations of convex sets, oriented m... | Separoid | Mathematics | 582 |
219,807 | https://en.wikipedia.org/wiki/Keel | The keel is the bottom-most longitudinal structural element of a watercraft. On some sailboats, it may have a hydrodynamic and counterbalancing purpose as well. The laying of the keel is often the initial step in constructing a ship. In the British and American shipbuilding traditions, this event marks the beginning da... | Keel | Engineering | 1,207 |
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