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https://en.wikipedia.org/wiki/Ecological%20pyramid | An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid') is a graphical representation designed to show the biomass or bioproductivity at each trophic level in an ecosystem.
A pyramid of energy shows how much energy is retained in the form of new biomass from each trop... |
https://en.wikipedia.org/wiki/Bracewell%20probe | A Bracewell probe is a hypothetical concept for an autonomous interstellar space probe dispatched for the express purpose of communication with one or more alien civilizations. It was proposed by Ronald N. Bracewell in a 1960 paper, as an alternative to interstellar radio communication between widely separated civiliza... |
https://en.wikipedia.org/wiki/Data%20scrubbing | Data scrubbing is an error correction technique that uses a background task to periodically inspect main memory or storage for errors, then corrects detected errors using redundant data in the form of different checksums or copies of data. Data scrubbing reduces the likelihood that single correctable errors will accumu... |
https://en.wikipedia.org/wiki/Baire%20function | In mathematics, Baire functions are functions obtained from continuous functions by transfinite iteration of the operation of forming pointwise limits of sequences of functions. They were introduced by René-Louis Baire in 1899. A Baire set is a set whose characteristic function is a Baire function.
Classification of B... |
https://en.wikipedia.org/wiki/Liners | "Liners" is a horticultural term referring to very young plants, usually grown for sale to retailers or wholesalers, who then grow them to a larger size before selling them to consumers. Liners are usually grown from seed, but may also be grown from cuttings or tissue culture. They are grown in plastic trays with man... |
https://en.wikipedia.org/wiki/Buddy%20box | Buddy box or buddy boxing is a colloquialism referring to two R/C aircraft radio systems joined together for pilot training purposes.
This training system is universal among the six major R/C radio manufacturers (Spektrum, Futaba, JR, Hitec, Sanwa/Airtronics and KO Propo) which means that transmitters do not have to b... |
https://en.wikipedia.org/wiki/Pyramid%20Head | Pyramid Head, also known as , "Red Pyramid" or is a character from the Silent Hill series, a survival horror video game series created by Japanese company Konami.
Introduced in the 2001 installment Silent Hill 2, he is a type of monster that serves as the secondary antagonist, stalking James Sunderland, the primary p... |
https://en.wikipedia.org/wiki/Osteitis | Osteitis is inflammation of bone. More specifically, it can refer to one of the following conditions:
Osteomyelitis, or infectious osteitis, mainly bacterial osteitis
Alveolar osteitis or "dry socket"
Condensing osteitis (or Osteitis condensans)
Osteitis deformans (or Paget's disease of bone)
Osteitis fibrosa cyst... |
https://en.wikipedia.org/wiki/Montina | Montina is a brand name of a type of flour created from milled Indian ricegrass (Achnatherum hymenoides), a type of grass native to the western United States. Indian rice grass was grown and used by Native Americans as much as 7,000 years ago. The grass is not related to rice, and the flour is gluten-free.
Indian ric... |
https://en.wikipedia.org/wiki/Laurance%20Doyle | Laurance R. Doyle (born 1953) is an American scientist who received his Ph.D. from the Ruprecht Karl University of Heidelberg.
Doyle has worked at the SETI Institute since 1987 where he is a principal investigator and astrophysicist. His main area of study has been the formation and detection of extrasolar planets, bu... |
https://en.wikipedia.org/wiki/Nectar%20guide | Nectar guides are markings or patterns seen in flowers of some angiosperm species, that guide pollinators to their rewards. Rewards commonly take the form of nectar, pollen, or both, but various plants produce oil, resins, scents, or waxes. Such patterns also are known as "pollen guides" and "honey guides", though som... |
https://en.wikipedia.org/wiki/Arthroconidium | Arthroconidia are a type of fungal spore typically produced by segmentation of pre-existing fungal hyphae.
Background
These spores are asexual and are generally not as durable and environmentally persistent as, for instance, bacterial endospores or chlamydospores. Some medically significant pathogens, such as Coccidi... |
https://en.wikipedia.org/wiki/Single-unit%20recording | In neuroscience, single-unit recordings (also, single-neuron recordings) provide a method of measuring the electro-physiological responses of a single neuron using a microelectrode system. When a neuron generates an action potential, the signal propagates down the neuron as a current which flows in and out of the cel... |
https://en.wikipedia.org/wiki/Microsoft%20Write | Microsoft Write is a basic word processor included with Windows 1.0 and later, until Windows NT 3.51. Throughout its lifespan it was minimally updated, and is comparable to early versions of MacWrite. Early versions of Write only work with Write Document (.wri) files, which are a subset of the Rich Text Format (RTF). A... |
https://en.wikipedia.org/wiki/Defense%20Data%20Network | The Defense Data Network (DDN) was a computer networking effort of the United States Department of Defense from 1983 through 1995. It was based on ARPANET technology.
History
As an experiment, from 1971 to 1977, the Worldwide Military Command and Control System (WWMCCS) purchased and operated an ARPANET-type system ... |
https://en.wikipedia.org/wiki/Kelvin%20water%20dropper | The Kelvin water dropper, invented by Scottish scientist William Thomson (Lord Kelvin) in 1867, is a type of electrostatic generator. Kelvin referred to the device as his water-dropping condenser. The apparatus is variously called the Kelvin hydroelectric generator, the Kelvin electrostatic generator, or Lord Kelvin's... |
https://en.wikipedia.org/wiki/Radio-controlled%20glider | A radio-controlled glider is a type of radio-controlled aircraft that normally does not have any form of propulsion. They are able to sustain continuous flight by exploiting the lift produced by slopes and thermals, controlled remotely from the ground with a transmitter. They can be constructed from a variety of materi... |
https://en.wikipedia.org/wiki/Lacandon%20Jungle | The Lacandon Jungle (Spanish: Selva Lacandona) is an area of rainforest which stretches from Chiapas, Mexico, into Guatemala. The heart of this rainforest is located in the Montes Azules Biosphere Reserve in Chiapas near the border with Guatemala in the Montañas del Oriente region of the state. Although much of the jun... |
https://en.wikipedia.org/wiki/Generalized%20expected%20utility | Generalized expected utility is a decision-making metric based on any of a variety of theories that attempt to resolve some discrepancies between expected utility theory and empirical observations, concerning choice under risky (probabilistic) circumstances. Given its motivations and approach, generalized expected util... |
https://en.wikipedia.org/wiki/Orthotropic%20material | In material science and solid mechanics, orthotropic materials have material properties at a particular point which differ along three orthogonal axes, where each axis has twofold rotational symmetry. These directional differences in strength can be quantified with Hankinson's equation.
They are a subset of anisotropi... |
https://en.wikipedia.org/wiki/Tree%20of%20life%20%28Kabbalah%29 | The Tree of Life (Hebrew: עֵץ חַיִּים ʿĒṣ Ḥayyīm) is a diagram used in Kabbalah and various other mystical traditions. It is usually referred to as the Kabbalistic tree of life in order to distinguish it from the biblical tree of life and the archetypal tree of life found in many cultures.
Scholars have asserted that ... |
https://en.wikipedia.org/wiki/Bandwidth-delay%20product | In data communications, the bandwidth-delay product is the product of a data link's capacity (in bits per second) and its round-trip delay time (in seconds). The result, an amount of data measured in bits (or bytes), is equivalent to the maximum amount of data on the network circuit at any given time, i.e., data that h... |
https://en.wikipedia.org/wiki/Agreement%20on%20the%20Application%20of%20Sanitary%20and%20Phytosanitary%20Measures | The Agreement on the Application of Sanitary and Phytosanitary Measures, also known as the SPS Agreement or just SPS, is an international treaty of the World Trade Organization (WTO). It was negotiated during the Uruguay Round of the General Agreement on Tariffs and Trade (GATT), and entered into force with the establi... |
https://en.wikipedia.org/wiki/Kistler%20Prize | The Kistler Prize (1999-2011) was awarded annually to recognize original contributions "to the understanding of the connection between human heredity and human society," and was named after its benefactor, physicist and inventor Walter Kistler. The prize was awarded by the Foundation For the Future and it included a ca... |
https://en.wikipedia.org/wiki/Metalaxyl | Metalaxyl is an acylalanine fungicide with systemic function. Its chemical name is methyl N-(methoxyacetyl)-N-(2,6-xylyl)-DL-alaninate. It can be used to control Pythium in a number of vegetable crops, and Phytophthora in peas. Metalaxyl-M is the ISO common name and Ridomil Gold is the trade name for the optically pur... |
https://en.wikipedia.org/wiki/Internship%20%28medicine%29 | A medical (or surgical) intern is a physician in training who has completed medical school and has a medical degree, but does not yet have a license to practice medicine unsupervised. Medical education generally ends with a period of practical training similar to internship, but the way the overall program of academic ... |
https://en.wikipedia.org/wiki/Chlorothalonil | Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is an organic compound mainly used as a broad spectrum, nonsystemic fungicide, with other uses as a wood protectant, pesticide, acaricide, and to control mold, mildew, bacteria, algae. Chlorothalonil-containing products are sold under the names Bravo, Echo, and Daco... |
https://en.wikipedia.org/wiki/Iprodione | Iprodione is a hydantoin fungicide and nematicide.
Application
Iprodione is used on crops affected by Botrytis bunch rot, Brown rot, Sclerotinia and other fungal diseases in plants. It is currently applied in a variety of crops: fruit, vegetables, ornamental trees and shrubs and on lawns. It is a contact fungicide tha... |
https://en.wikipedia.org/wiki/Kundt%27s%20tube | Kundt's tube is an experimental acoustical apparatus invented in 1866 by German physicist August Kundt for the measurement of the speed of sound in a gas or a solid rod. The experiment is still taught today due to its ability to demonstrate longitudinal waves in a gas (which can often be difficult to visualise). It is... |
https://en.wikipedia.org/wiki/Pore%20water%20pressure | Pore water pressure (sometimes abbreviated to pwp) refers to the pressure of groundwater held within a soil or rock, in gaps between particles (pores). Pore water pressures below the phreatic level of the groundwater are measured with piezometers. The vertical pore water pressure distribution in aquifers can generally ... |
https://en.wikipedia.org/wiki/Effective%20stress | The effective stress can be defined as the stress, depending on the applied tension and pore pressure , which controls the strain or strength behaviour of soil and rock (or a generic porous body) for whatever pore pressure value or, in other terms, the stress which applied over a dry porous body (i.e. at ) provides th... |
https://en.wikipedia.org/wiki/4Pi%20microscope | A 4Pi microscope is a laser scanning fluorescence microscope with an improved axial resolution. With it the typical range of the axial resolution of 500–700 nm can be improved to 100–150 nm, which corresponds to an almost spherical focal spot with 5–7 times less volume than that of standard confocal microscopy.
Workin... |
https://en.wikipedia.org/wiki/Expense%20ratio | The expense ratio of a stock or asset fund is the total percentage of fund assets used for administrative, management, advertising (12b-1), and all other expenses. An expense ratio of 1% per annum means that each year 1% of the fund's total assets will be used to cover expenses. The expense ratio does not include sal... |
https://en.wikipedia.org/wiki/Mercury%20%28cipher%20machine%29 | Mercury was a British cipher machine used by the Air Ministry from 1950 until at least the early 1960s. Mercury was an online rotor machine descended from Typex, but modified to achieve a longer cycle length using a so-called double-drum basket system.
History
Mercury was designed by Wing Commander E. W. Smith and F.... |
https://en.wikipedia.org/wiki/Polysorbate%2080 | Polysorbate 80 is a nonionic surfactant and emulsifier often used in pharmaceuticals, foods, and cosmetics. This synthetic compound is a viscous, water-soluble yellow liquid.
Chemistry
Polysorbate 80 is derived from polyethoxylated sorbitan and oleic acid. The hydrophilic groups in this compound are polyethers also kn... |
https://en.wikipedia.org/wiki/Scroll%20%28art%29 | The scroll in art is an element of ornament and graphic design featuring spirals and rolling incomplete circle motifs, some of which resemble the edge-on view of a book or document in scroll form, though many types are plant-scrolls, which loosely represent plant forms such as vines, with leaves or flowers attached. ... |
https://en.wikipedia.org/wiki/Scaffold%20protein | In biology, scaffold proteins are crucial regulators of many key signalling pathways. Although scaffolds are not strictly defined in function, they are known to interact and/or bind with multiple members of a signalling pathway, tethering them into complexes. In such pathways, they regulate signal transduction and he... |
https://en.wikipedia.org/wiki/Scalar%20%28mathematics%29 | A scalar is an element of a field which is used to define a vector space.
In linear algebra, real numbers or generally elements of a field are called scalars and relate to vectors in an associated vector space through the operation of scalar multiplication (defined in the vector space), in which a vector can be multipl... |
https://en.wikipedia.org/wiki/NUbuntu |
nUbuntu or Network Ubuntu was a project to take the existing Ubuntu operating system LiveCD and Full Installer and remaster it with tools needed for penetration testing servers and networks. The main idea is to keep Ubuntu's ease of use and mix it with popular penetration testing tools. Besides usage for network and... |
https://en.wikipedia.org/wiki/Prix%20Wilder-Penfield | The Prix Wilder-Penfield is an award by the government of Quebec that is part of the Prix du Québec, which "goes to scientists whose research aims fall within the field of biomedicine. These fields include the medical sciences, the natural sciences, and engineering". It is named in honour of Wilder Penfield.
Winners
S... |
https://en.wikipedia.org/wiki/Scalar%20%28physics%29 | In physics, scalars (or scalar quantities) are physical quantities that are unaffected by changes to a vector space basis (i.e., a coordinate system transformation). Scalars are often accompanied by units of measurement, as in "10cm".
Examples of scalar quantities are mass, distance, charge, volume, time, speed, and t... |
https://en.wikipedia.org/wiki/Cellular%20component | Cellular components are the complex biomolecules and structures of which cells, and thus living organisms, are composed. Cells are the structural and functional units of life. The smallest organisms are single cells, while the largest organisms are assemblages of trillions of cells. DNA, double stranded macromolecule t... |
https://en.wikipedia.org/wiki/Hardness | In materials science, hardness (antonym: softness) is a measure of the resistance to plastic deformation, such as an indentation (over an area) or a scratch (linear), induced mechanically either by pressing or abrasion. In general, different materials differ in their hardness; for example hard metals such as titanium ... |
https://en.wikipedia.org/wiki/Christofides%20algorithm | The Christofides algorithm or Christofides–Serdyukov algorithm is an algorithm for finding approximate solutions to the travelling salesman problem, on instances where the distances form a metric space (they are symmetric and obey the triangle inequality).
It is an approximation algorithm that guarantees that its solut... |
https://en.wikipedia.org/wiki/Sweden%20Solar%20System | The Sweden Solar System is the world's largest permanent scale model of the Solar System. The Sun is represented by the Avicii Arena in Stockholm, the second-largest hemispherical building in the world. The inner planets can also be found in Stockholm but the outer planets are situated northward in other cities along t... |
https://en.wikipedia.org/wiki/Heisenbug | In computer programming jargon, a heisenbug is a software bug that seems to disappear or alter its behavior when one attempts to study it. The term is a pun on the name of Werner Heisenberg, the physicist who first asserted the observer effect of quantum mechanics, which states that the act of observing a system inevit... |
https://en.wikipedia.org/wiki/STEbus | The STEbus (also called the IEEE-1000 bus) is a non-proprietary, processor-independent, computer bus with 8 data lines and 20 address lines. It was popular for industrial control systems in the late 1980s and early 1990s before the ubiquitous IBM PC dominated this market. STE stands for STandard Eurocard.
Although no... |
https://en.wikipedia.org/wiki/Interface%20%28matter%29 | In the physical sciences, an interface is the boundary between two spatial regions occupied by different matter, or by matter in different physical states. The interface between matter and air, or matter and vacuum, is called a surface, and studied in surface science. In thermal equilibrium, the regions in contact are ... |
https://en.wikipedia.org/wiki/Concrete%20Mathematics | Concrete Mathematics: A Foundation for Computer Science, by Ronald Graham, Donald Knuth, and Oren Patashnik, first published in 1989, is a textbook that is widely used in computer-science departments as a substantive but light-hearted treatment of the analysis of algorithms.
Contents and history
The book provides mat... |
https://en.wikipedia.org/wiki/Round%20dance%20%28honey%20bee%29 | A round dance is the communicative behaviour of a foraging honey bee (Apis mellifera), in which it moves on the comb in close circles, alternating right and then left. It was previously believed that the round dance indicates that the forager has located a profitable food source close to the hive and the round dance tr... |
https://en.wikipedia.org/wiki/Francis%20Sowerby%20Macaulay | Francis Sowerby Macaulay FRS (11 February 1862, Witney – 9 February 1937, Cambridge) was an English mathematician who made significant contributions to algebraic geometry. He is known for his 1916 book The Algebraic Theory of Modular Systems (an old term for ideals), which greatly influenced the later course of commuta... |
https://en.wikipedia.org/wiki/Segue | A segue (; ) is a transition from one topic or section to the next. The term is derived from Italian segue, which literally means "follows".
In music
In music, segue is a direction to the performer. It means continue (the next section) without a pause. The term attacca is used synonymously. For written music, it impl... |
https://en.wikipedia.org/wiki/Siege%20of%20Fort%20Pitt | The siege of Fort Pitt took place during June and July 1763 in what is now the city of Pittsburgh, Pennsylvania, United States. The siege was a part of Pontiac's War, an effort by Native Americans to remove the Anglo-Americans from the Ohio Country and Allegheny Plateau after they refused to honor their promises and tr... |
https://en.wikipedia.org/wiki/Relay%20channel | In information theory, a relay channel is a probability model of the communication between a sender and a receiver aided by one or more intermediate relay nodes.
General discrete-time memoryless relay channel
A discrete memoryless single-relay channel can be modelled as four finite sets, and , and a conditional pro... |
https://en.wikipedia.org/wiki/Power%20optimization%20%28EDA%29 | Power optimization is the use of electronic design automation tools to optimize (reduce) the power consumption of a digital design, such as that of an integrated circuit, while preserving the functionality.
Introduction and history
The increasing speed and complexity of today’s designs implies a significant increase ... |
https://en.wikipedia.org/wiki/Atomic%20layer%20epitaxy | Atomic layer epitaxy (ALE), more generally known as atomic layer deposition (ALD), is a specialized form of thin film growth (epitaxy) that typically deposit alternating monolayers of two elements onto a substrate. The crystal lattice structure achieved is thin, uniform, and aligned with the structure of the substrate... |
https://en.wikipedia.org/wiki/Chemical%20beam%20epitaxy | Chemical beam epitaxy (CBE) forms an important class of deposition techniques for semiconductor layer systems, especially III-V semiconductor systems. This form of epitaxial growth is performed in an ultrahigh vacuum system. The reactants are in the form of molecular beams of reactive gases, typically as the hydride or... |
https://en.wikipedia.org/wiki/Business%20mathematics | Business mathematics are mathematics used by commercial enterprises to record and manage business operations. Commercial organizations use mathematics in accounting, inventory management, marketing, sales forecasting, and financial analysis.
Mathematics typically used in commerce includes elementary arithmetic, elem... |
https://en.wikipedia.org/wiki/Winnipeg%20%28bear%29 | Winnipeg (1914 – 12 May 1934), or Winnie, was the name given to a female black bear that lived at London Zoo from 1915 until her death in 1934. Rescued by cavalry veterinarian Harry Colebourn, Winnie is best-remembered for inspiring the name of A. A. Milne and E. H. Shepard's character, Winnie-the-Pooh.
History
Upon ... |
https://en.wikipedia.org/wiki/Hisense | Hisense Group is a Chinese multinational major appliance and electronics manufacturer headquartered in Qingdao, Shandong Province, China. Televisions are the main products of Hisense, and it is the largest TV manufacturer in China by market share since 2004. Hisense is also an OEM, so some of its products are sold to o... |
https://en.wikipedia.org/wiki/Alfred%20Y.%20Cho | Alfred Yi Cho (; born July 10, 1937) is a Chinese-American electrical engineer, inventor, and optical engineer. He is the Adjunct Vice President of Semiconductor Research at Alcatel-Lucent's Bell Labs. He is known as the "father of molecular beam epitaxy"; a technique he developed at that facility in the late 1960s. ... |
https://en.wikipedia.org/wiki/Cyclic%20stress | Cyclic stress is the distribution of forces (aka stresses) that change over time in a repetitive fashion. As an example, consider one of the large wheels used to drive an aerial lift such as a ski lift. The wire cable wrapped around the wheel exerts a downward force on the wheel and the drive shaft supporting the whee... |
https://en.wikipedia.org/wiki/Dynamic%20Multipoint%20Virtual%20Private%20Network | Dynamic Multipoint Virtual Private Network (DMVPN) is a dynamic tunneling form of a virtual private network (VPN) supported on Cisco IOS-based routers, and Huawei AR G3 routers, and on Unix-like operating systems.
Benefits
DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-conf... |
https://en.wikipedia.org/wiki/List%20of%20ERP%20software%20packages | This is a list of notable enterprise resource planning (ERP) software. The first section is devoted to free and open-source software, and the second is for proprietary software.
Free and open-source ERP software
Proprietary ERP vendors and software
1C Company – 1C:Enterprise
24SevenOffice – 24SevenOffice Start, P... |
https://en.wikipedia.org/wiki/Maximum%20power%20principle | The maximum power principle or Lotka's principle has been proposed as the fourth principle of energetics in open system thermodynamics, where an example of an open system is a biological cell. According to Howard T. Odum, "The maximum power principle can be stated: During self-organization, system designs develop and p... |
https://en.wikipedia.org/wiki/Diphenylamine | Diphenylamine is an organic compound with the formula (C6H5)2NH. The compound is a derivative of aniline, consisting of an amine bound to two phenyl groups. The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities. Diphenylamine dissolves well in many common organic solvents... |
https://en.wikipedia.org/wiki/Narendra%20Nayak | Narendra Nayak (born 5 February 1951) is a rationalist, sceptic, and godman debunker from Mangalore, Karnataka, India. Nayak is the current president of the Federation of Indian Rationalist Associations (FIRA). He founded the Dakshina Kannada Rationalist Association in 1976 and has been its secretary since then. He als... |
https://en.wikipedia.org/wiki/Schoof%27s%20algorithm | Schoof's algorithm is an efficient algorithm to count points on elliptic curves over finite fields. The algorithm has applications in elliptic curve cryptography where it is important to know the number of points to judge the difficulty of solving the discrete logarithm problem in the group of points on an elliptic cur... |
https://en.wikipedia.org/wiki/Minimum%20total%20potential%20energy%20principle | The minimum total potential energy principle is a fundamental concept used in physics and engineering. It dictates that at low temperatures a structure or body shall deform or displace to a position that (locally) minimizes the total potential energy, with the lost potential energy being converted into kinetic energy (... |
https://en.wikipedia.org/wiki/Einzel%20lens | An einzel lens (from – single lens), or unipotential lens, is a charged particle electrostatic lens that focuses without changing the energy of the beam. It consists of three or more sets of cylindrical or rectangular apertures or tubes in series along an axis. It is used in ion optics to focus ions in flight, which i... |
https://en.wikipedia.org/wiki/Ball-and-socket%20joint | The ball-and-socket joint (or spheroid joint) is a type of synovial joint in which the ball-shaped surface of one rounded bone fits into the cup-like depression of another bone. The distal bone is capable of motion around an indefinite number of axes, which have one common center. This enables the joint to move in many... |
https://en.wikipedia.org/wiki/Common%20gamma%20chain | The common gamma chain (γc) (or CD132), also known as interleukin-2 receptor subunit gamma or IL-2RG, is a cytokine receptor sub-unit that is common to the receptor complexes for at least six different interleukin receptors: IL-2, IL-4, IL-7, IL-9, IL-15 and interleukin-21 receptor. The γc glycoprotein is a member of t... |
https://en.wikipedia.org/wiki/Paul%20Horn%20%28computer%20scientist%29 | Paul M. Horn (born August 16, 1946) is an American computer scientist and solid state physicist who has made contributions to pervasive computing, pioneered the use of copper and self-assembly in chip manufacturing, and he helped manage the development of deep computing, an important tool that provides business decisio... |
https://en.wikipedia.org/wiki/Resel | In image analysis, a resel (from resolution element) represents the actual spatial resolution in an image or a volumetric dataset.
The number of resels in the image may be lower or equal to the number of pixel/voxels in the image.
In an actual image the resels can vary across the image and indeed the local resolution ... |
https://en.wikipedia.org/wiki/Magnetosphere%20particle%20motion | The ions and electrons of a plasma interacting with the Earth's magnetic field generally follow its magnetic field lines. These represent the force that a north magnetic pole would experience at any given point. (Denser lines indicate a stronger force.) Plasmas exhibit more complex second-order behaviors, studied as... |
https://en.wikipedia.org/wiki/Magnetosphere%20chronology | The following is a chronology of discoveries concerning the magnetosphere.
1600 - William Gilbert in London suggests the Earth is a giant magnet.
1741 - Hiorter and Anders Celsius note that the polar aurora is accompanied by a disturbance of the magnetic needle.
1820 - Hans Christian Ørsted discovers electric currents... |
https://en.wikipedia.org/wiki/God%20helmet | The God helmet is an experimental apparatus originally called the Koren helmet after its inventor Stanley Koren. It was developed by Koren and neuroscientist Michael Persinger to study creativity, religious experience and the effects of subtle stimulation of the temporal lobes. Reports by participants of a "sensed pres... |
https://en.wikipedia.org/wiki/Energy%20principles%20in%20structural%20mechanics | Energy principles in structural mechanics express the relationships between stresses, strains or deformations, displacements, material properties, and external effects in the form of energy or work done by internal and external forces. Since energy is a scalar quantity, these relationships provide convenient and altern... |
https://en.wikipedia.org/wiki/Deus%20Ex%20Machina%20%28video%20game%29 | Deus Ex Machina is a video game designed and created by Mel Croucher and published by Automata UK for the ZX Spectrum in October 1984 and later converted to MSX and Commodore 64.
The game was the first to be accompanied by a fully synchronised soundtrack which featured narration, celebrity artists and music. The cast ... |
https://en.wikipedia.org/wiki/Extreme%20programming%20practices | Extreme programming (XP) is an agile software development methodology used to implement software projects. This article details the practices used in this methodology. Extreme programming has 12 practices, grouped into four areas, derived from the best practices of software engineering.
Fine scale feedback
Pair prog... |
https://en.wikipedia.org/wiki/Fermi%E2%80%93Walker%20transport | Fermi–Walker transport is a process in general relativity used to define a coordinate system or reference frame such that all curvature in the frame is due to the presence of mass/energy density and not to arbitrary spin or rotation of the frame.
Fermi–Walker differentiation
In the theory of Lorentzian manifolds, Fer... |
https://en.wikipedia.org/wiki/Secretion%20assay | Secretion assay is a process used in cell biology to identify cells that are secreting a particular protein (usually a cytokine). It was first developed by Manz et al. in 1995.
Usually, a cell that is secreting the protein of interest is isolated using an antibody-antibody complex that coats the cell and is able to "c... |
https://en.wikipedia.org/wiki/Tsallis%20statistics | The term Tsallis statistics usually refers to the collection of mathematical functions and associated probability distributions that were originated by Constantino Tsallis. Using that collection, it is possible to derive Tsallis distributions from the optimization of the Tsallis entropic form. A continuous real paramet... |
https://en.wikipedia.org/wiki/Shot%20transition%20detection | Shot transition detection (or simply shot detection) also called cut detection is a field of research of video processing. Its subject is the automated detection of transitions between shots in digital video with the purpose of temporal segmentation of videos.
Use
Shot transition detection is used to split up a film... |
https://en.wikipedia.org/wiki/Dysferlin | Dysferlin also known as dystrophy-associated fer-1-like protein is a protein that in humans is encoded by the DYSF gene. Dysferlin is linked with plasma membrane repair., stabilization of calcium signaling and the development of the T-tubule system of the muscle A defect in the DYSF gene, located on chromosome 2p12-14,... |
https://en.wikipedia.org/wiki/Dynamic%20linker | In computing, a dynamic linker is the part of an operating system that loads and links the shared libraries needed by an executable when it is executed (at "run time"), by copying the content of libraries from persistent storage to RAM, filling jump tables and relocating pointers. The specific operating system and exec... |
https://en.wikipedia.org/wiki/Volume%20fraction | In chemistry and fluid mechanics, the volume fraction φi is defined as the volume of a constituent Vi divided by the volume of all constituents of the mixture V prior to mixing:
Being dimensionless, its unit is 1; it is expressed as a number, e.g., 0.18. It is the same concept as volume percent (vol%) except that the ... |
https://en.wikipedia.org/wiki/Edgeworth%20price%20cycle | An Edgeworth price cycle is cyclical pattern in prices characterized by an initial jump, which is then followed by a slower decline back towards the initial level. The term was introduced by Maskin and Tirole (1988) in a theoretical setting featuring two firms bidding sequentially and where the winner captures the full... |
https://en.wikipedia.org/wiki/Shock%20diamond | Shock diamonds (also known as Mach diamonds or thrust diamonds) are a formation of standing wave patterns that appear in the supersonic exhaust plume of an aerospace propulsion system, such as a supersonic jet engine, rocket, ramjet, or scramjet, when it is operated in an atmosphere. The "diamonds" are actually a compl... |
https://en.wikipedia.org/wiki/SIMNET | SIMNET was a wide area network with vehicle simulators and displays for real-time distributed combat simulation: tanks, helicopters and airplanes in a virtual battlefield. SIMNET was developed for and used by the United States military. SIMNET development began in the mid-1980s, was fielded starting in 1987, and was ... |
https://en.wikipedia.org/wiki/T-cell%20vaccination | T-cell vaccination is immunization with inactivated autoreactive T cells. The concept of T-cell vaccination is, at least partially, analogous to classical vaccination against infectious disease. However, the agents to be eliminated or neutralized are not foreign microbial agents but a pathogenic autoreactive T-cell pop... |
https://en.wikipedia.org/wiki/Nielsen%20theory | Nielsen theory is a branch of mathematical research with its origins in topological fixed-point theory. Its central ideas were developed by Danish mathematician Jakob Nielsen, and bear his name.
The theory developed in the study of the so-called minimal number of a map f from a compact space to itself, denoted MF[f]. ... |
https://en.wikipedia.org/wiki/Genetic%20Information%20Research%20Institute | The Genetic Information Research Institute (GIRI) is a non-profit institution that was founded in 1994 by Jerzy Jurka. The mission of the institute "is to understand biological processes which alter the genetic makeup of different organisms, as a basis for potential gene therapy and genome engineering techniques." The ... |
https://en.wikipedia.org/wiki/Herzog%E2%80%93Sch%C3%B6nheim%20conjecture | In mathematics, the Herzog–Schönheim conjecture is a combinatorial problem in the area of group theory, posed by Marcel Herzog and Jochanan Schönheim in 1974.
Let be a group, and let
be a finite system of left cosets of subgroups
of .
Herzog and Schönheim conjectured
that if forms a partition of
with ,
then the... |
https://en.wikipedia.org/wiki/Tire%20code | Automotive tires are described by an alphanumeric tire code (in North American English) or tyre code (in Commonwealth English), which is generally molded into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed. Somet... |
https://en.wikipedia.org/wiki/XML%20for%20Analysis | XML for Analysis (XMLA) is an industry standard for data access in analytical systems, such as online analytical processing (OLAP) and data mining. XMLA is based on other industry standards such as XML, SOAP and HTTP. XMLA is maintained by XMLA Council with Microsoft, Hyperion and SAS Institute being the XMLA Council f... |
https://en.wikipedia.org/wiki/FASMI | Fast Analysis of Shared Multidimensional Information (FASMI) is an alternative term for OLAP. The term was coined by Nigel Pendse of The OLAP Report (now known as The BI Verdict), because he felt that the 12 rules that Tedd Codd used to define OLAP were too controversial and biased (the rules were sponsored by Arbor S... |
https://en.wikipedia.org/wiki/Relativistic%20particle | In particle physics, a relativistic particle is an elementary particle with kinetic energy greater than or equal to its rest-mass energy given by Einstein's relation, , or specifically, of which the velocity is comparable to the speed of light .
This is achieved by photons to the extent that effects described by spec... |
https://en.wikipedia.org/wiki/Percy%20John%20Heawood | Percy John Heawood (8 September 1861 – 24 January 1955) was a British mathematician, who concentrated on graph colouring.
Life
He was the son of the Rev. John Richard Heawood of Newport, Shropshire, and his wife Emily Heath, daughter of the Rev. Joseph Heath of Wigmore, Herefordshire; and a first cousin of Oliver Lodg... |
https://en.wikipedia.org/wiki/Amaurote | Amaurote is a British video game for 8-bit computer systems that was released in 1987 by Mastertronic on their Mastertronic Added Dimension label. The music for the game was written by David Whittaker.
Plot
From the game's instructions:
The city of Amaurote has been invaded by huge, aggressive insects who have built ... |
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