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Eccentric
Eccentricity or eccentric may refer to: * Eccentricity (behavior), odd behavior on the part of a person, as opposed to being "normal" Mathematics, science and technology Mathematics * Off- center, in geometry * Eccentricity (graph theory) of a vertex in a graph * Eccentricity (mathematics), a parameter associated with every conic section Orbital mechanics * Orbital eccentricity, in astrodynamics, a measure of the non-circularity of an orbit * Eccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbit * Eccentricity vector, in celestial mechanics, a dimensionless vector with direction pointing from apoapsis to periapsis * Eccentric, a type of deferent, a circle or sphere used in obsolete epicyclical systems to carry a planet around the Earth or Sun Other uses in science and technology * Eccentric (mechanism), a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel * Horizo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eccentricity (behavior)
Eccentricity (also called quirkiness) is an unusual or odd behavior on the part of an individual. This behavior would typically be perceived as unusual or unnecessary, without being demonstrably maladaptive. Eccentricity is contrasted with normal behavior, the nearly universal means by which individuals in society solve given problems and pursue certain priorities in everyday life. People who consistently display benignly eccentric behavior are labeled as "eccentrics". Etymology From Medieval Latin ''eccentricus'', derived from Greek ', "out of the center", from '-, '- "out of" + ', "center". ''Eccentric'' first appeared in English essays as a neologism in 1551, as an astronomical term meaning "a circle in which the earth, sun, etc. deviates from its center." (See Orbital eccentricity.) Five years later, in 1556, an adjective form of the word was used. In 1685, the definition evolved from the literal to the figurative, and ''eccentric'' is noted to have begun being used to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muscle Contraction
Muscle contraction is the activation of Tension (physics), tension-generating sites within muscle cells. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as when holding something heavy in the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state. For the contractions to happen, the muscle cells must rely on the change in action of two types of Myofilament, filaments: thin and thick filaments. The major constituent of thin filaments is a chain formed by helical coiling of two strands of actin, and thick filaments dominantly consist of chains of the Motor protein, motor-protein myosin. Together, these two filaments form myofibrils - the basic functional organelles in the skeletal muscle system. In vertebrates, Muscle cell#Muscle contraction in striated muscle, skele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Eccentrics
''The Eccentrics'' ( ka, შერეკილები, ''Sherekilebi''; , ''Chudaki'') is a 1973 Soviet satire-comedy film The comedy film is a film genre that emphasizes humor. These films are designed to amuse audiences and make them laugh. Films in this genre typically have a happy ending, with dark comedy being an exception to this rule. Comedy is one of the o ... directed by Eldar Shengelaia. Plot Ertaoz Bregvadze goes to the city intending to sell a chicken and pay off his father's debts. Upon arrival, he falls instantly in love with a beautiful woman named Margalita and decides to help her dispose of the body of her lover, a policeman. At the cemetery, the policeman unexpectedly regains consciousness and arrests Ertaoz along with the chicken. Ertaoz is sentenced to ten years in prison, while the bird receives seven. In prison, they meet Khristofor, an inventor who has created a flying machine that runs on the power of love instead of fuel. Cast *Vasili Chkhaidze as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Eccentric
''The Eccentric'' or ''The Odd One'' () is a 1929 German silent comedy film directed by Walter Jerven and starring Karl Valentin, Liesl Karlstadt, and Truus van Aalten. It was made at the Emelka Studios in Munich Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is no .... Cast References Bibliography * External links * * 1929 films 1929 comedy films Silent German comedy films Films of the Weimar Republic German silent feature films German black-and-white films Films shot at Bavaria Studios 1920s German films Eccentricity (behavior) 1920s German-language films German-language comedy films {{1920s-Germany-silent-comedy-film-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eccentric Club
The Eccentric Club is the name of several London gentlemen's clubs, the best-known of which existed between 1890 and 1986. For much of its history it was based at 9–11 Ryder Street, St James's. The current Club was founded in 2008. First Eccentric Club The first Eccentric Club had its roots in the Society of Eccentrics which existed from 1781 to the 1820s. They were an offshoot of The Brilliants and were described as a convivial Club who met at a tavern in Chandos Street, Covent Garden. They were later renamed into The Eccentric Society Club, meeting at Tom Ree's in May's Building, St Martin's Lane, as well as several other addresses around Covent Garden until the club was finally dissolved in 1846. At May's Building they 'flourished at all hours' and among their members were many celebrities of the literary and political world; they were always treated with indulgence by the authorities. An inaugural ceremony was performed upon the making of a member, which terminated with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concentricity
In geometry, two or more objects are said to be ''concentric'' when they share the same center. Any pair of (possibly unalike) objects with well-defined centers can be concentric, including circles, spheres, regular polygons, regular polyhedra, parallelograms, cones, conic sections, and quadrics. Geometric objects are ''coaxial'' if they share the same axis (line of symmetry). Geometric objects with a well-defined axis include circles (any line through the center), spheres, cylinders, conic sections, and surfaces of revolution. Concentric objects are often part of the broad category of ''whorled patterns'', which also includes ''spirals'' (a curve which emanates from a point, moving farther away as it revolves around the point). Geometric properties In the Euclidean plane, two circles that are concentric necessarily have different radii from each other.. However, circles in three-dimensional space may be concentric, and have the same radius as each other, but nevertheless ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eccentric Training
Eccentric training is a type of strength training that involves using the target muscles to control weight as it moves in a downward motion. This type of training can help build muscle, improve athletic performance, and reduce the risk of injury. An eccentric contraction is the motion of an active muscle while it is lengthening under load. Eccentric training is repetitively doing eccentric muscle contractions. For example, in a biceps curl the action of lowering the dumbbell back down from the lift is the eccentric phase of that exercise – as long as the dumbbell is lowered slowly rather than letting it drop (i.e., the biceps are in a state of contraction to control the rate of descent of the dumbbell). An eccentric contraction is one of the distinct phases in the movement of muscles and tendons; they include isometric contraction (no movement), isotonic contraction, and concentric contraction (shortening). Eccentric training focuses on slowing down the process of muscle el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surveying
Surveying or land surveying is the technique, profession, art, and science of determining the land, terrestrial Plane (mathematics), two-dimensional or Three-dimensional space#In Euclidean geometry, three-dimensional positions of Point (geometry), points and the Euclidean distance, distances and angles between them. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as the designated positions of structural components for construction or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales. A professional in land surveying is called a land surveyor. Surveyors work with elements of geodesy, geometry, trigonometry, regression analysis, physics, engineering, metrology, programming languages, and the law. They use equipment, such as total stations, robotic total stations, theodolites, Satellite navigation, GNSS receivers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horizontal Eccentricity
Horizontal eccentricity refers to the horizontal axis, measured in degrees, along the visual field. The blind spot extends from an eccentricity ''d''1 to eccentricity ''d''2 in temporal direction from the fovea. The size of the blind spot can be calculated as :\arctan \left(\frac\right) - \arctan \left(\frac\right). External links Blind Spot {{eye-stub Eye Vision ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre (geometry)
In geometry, a centre (English in the Commonwealth of Nations, Commonwealth English) or center (American English) () of an shape, object is a point (geometry), point in some sense in the middle of the object. According to the specific definition of centre taken into consideration, an object might have no centre. If geometry is regarded as the study of isometry groups, then a centre is a fixed point of all the isometries that move the object onto itself. Circles, spheres, and segments The centre of a circle is the point equidistant from the points on the edge. Similarly the centre of a sphere is the point equidistant from the points on the surface, and the centre of a line segment is the midpoint of the two ends. Symmetric objects For objects with several symmetries, the centre of symmetry is the point left unchanged by the symmetric actions. So the centre of a square (geometry), square, rectangle, rhombus or parallelogram is where the diagonals intersect, this is (among other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eccentric (mechanism)
In mechanical engineering, an eccentric is a circular disk (''eccentric sheave'') solidly fixed to a rotating axle with its centre offset from that of the axle (hence the word " eccentric", out of the center). It is used most often in steam engines, and used to convert rotary motion into linear reciprocating motion to drive a sliding valve or pump ram. To do so, an eccentric usually has a groove at its circumference closely fitted a circular collar (''eccentric strap''). An attached ''eccentric rod'' is suspended in such a way that its other end can impart the required reciprocating motion. A return crank fulfills the same function except that it can only work at the end of an axle or on the outside of a wheel whereas an eccentric can also be fitted to the body of the axle between the wheels. Unlike a cam, which also converts rotary into linear motion at almost any rate of acceleration and deceleration, an eccentric or return crank can only impart an approximation of simple har ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deferent
In the Hipparchian, Ptolemaic, and Copernican systems of astronomy, the epicycle (, meaning "circle moving on another circle") was a geometric model used to explain the variations in speed and direction of the apparent motion of the Moon, Sun, and planets. In particular it explained the apparent retrograde motion of the five planets known at the time. Secondarily, it also explained changes in the apparent distances of the planets from the Earth. It was first proposed by Apollonius of Perga at the end of the 3rd century BC. It was developed by Apollonius of Perga and Hipparchus of Rhodes, who used it extensively, during the 2nd century BC, then formalized and extensively used by Ptolemy in his 2nd century AD astronomical treatise the '' Almagest''. Epicyclical motion is used in the Antikythera mechanism, itation requested/sup> an ancient Greek astronomical device, for compensating for the elliptical orbit of the Moon, moving faster at perigee and slower at apogee than ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
