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1 выпуклый участок
участок, обслуживаемый печатником — pressman's working area
Русско-английский новый политехнический словарь > выпуклый участок
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2 выпуклый участок
Metallurgy: convex area, convex area (заготовки УНрС) -
3 зеркало
mirror effect тлв, glass, mirror, ( антенны) secondary radiator, reflector, picture reverse, speculum* * *зе́ркало с.1. mirror2. радио reflectorзе́ркало анте́нны — aerial [antenna] reflectorбеспаралла́ксное зе́ркало — parallax-free mirrorво́гнутое зе́ркало — concave mirrorзе́ркало вод — water table, water surfaceвы́пуклое зе́ркало — convex mirrorзе́ркало горе́ния — firebed surfaceдвугра́нное зе́ркало — flat-roof mirrorдихро́ичное зе́ркало — dichroic mirrorзе́ркало за́днего ви́да авто — rear-view mirrorзе́ркало золотника́ — slide valve faceинтерференцио́нное зе́ркало — cold(-light) mirrorзе́ркало испаре́ния1. физ. evaporation surface2. тепл. steam relieving area, disengagement surfaceзе́ркало микроско́па — illuminating mirrorзе́ркало нару́жного покры́тия — front-surface mirrorнейтро́нное зе́ркало — neutron-reflecting mirrorнеослепля́ющее зе́ркало — anti-dazzle [glare-proof] mirrorзе́ркало объё́много резона́тора — cavity mirrorпло́ское зе́ркало — plane [flat] mirrorполупрозра́чное зе́ркало — semireflecting [semitransparent] mirrorпосеребрё́нное зе́ркало — silvered mirrorпротивопаралла́ксное зе́ркало — anti-parallax mirrorзе́ркало рентге́новской тру́бки — targetсветодели́тельное зе́ркало — beam-splitting mirrorзе́ркало секста́на, большо́е — index glass, index mirrorзе́ркало секста́на, ма́лое — horizon grass, horizon mirrorзе́ркало с изменя́емым накло́ном — tilting mirrorзе́ркало скольже́ния горн. — slickensidesсмотрово́е зе́ркало — viewing mirrorзе́ркало ты́льного покры́тия — back-surface mirrorзе́ркало фла́нца тепл. — faceцветоизбира́ющее зе́ркало — colour-selective mirrorзе́ркало цили́ндра авто — cylinder faceзе́ркало шли́рен-систе́мы — schlieren mirrorэлектро́нно-опти́ческое зе́ркало — electron-optical mirror* * * -
4 Отсутствие артиклей в выражениях, используемых после with, without, in, as и at для уточнения свойств основного существительного
We shall be concerned with real $n$-spaceThis program package can be installed without much difficultyThen $D$ becomes a locally convex space with dual space $D'$The set of points with distance 1 from $K$The set of all functions with compact supportThe compact set of all points at distance 1 from $K$An algebra with unit $e$An operator with domain $H^2$A solution with vanishing Cauchy dataA cube with sides parallel to the axes of coordinatesA domain with smooth boundaryAn equation with constant coefficientsA function with compact supportRandom variables with zero expectation (zero mean)Any random variable can be taken as coordinate variable on $X$Here $t$ is interpreted as area and volumeWe show that $G$ is a group with composition as group operationIt is assumed that the matrix $A$ is given in diagonal (triangular, upper (lower) triangular, Hessenberg) formThen $A$ is deformed into $B$ by pushing it at constant speed along the integral curves of $X$$G$ is now viewed as a set, without group structureThe (a) function in coordinate representationThe idea of a vector in real $n$-dimensional spaceThe point $x$ with coordinates $(1,1)$A solution in explicit (implicit, coordinate) formОднако: let $B$ be a Banach space with a weak sympletic form $w$Однако: (the) two random variables with a common distributionОднако: this representation of $A$ is well defined as the integral of $f$ over the domain $D$Then the matrix $A$ has the simple eigenvalue $lambda=1$ with eigenvectors $x=(1,0)$ and $y=(1,-100)$Русско-английский словарь по прикладной математике и механике > Отсутствие артиклей в выражениях, используемых после with, without, in, as и at для уточнения свойств основного существительного
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5 spiegel
1 [weerkaatsend voorwerp/oppervlak; ook figuurlijk] mirror2 [medicijnen, geneeskunde] [gehalte] level3 [drukwezen] type/text space/area♦voorbeelden:1 vlakke/holle/bolle spiegels • flat/concave/convex mirrorsin de spiegel kijken • look at oneself (in the mirror)de zee was als een spiegel • the sea was like a mirror -
6 Galilei, Galileo
SUBJECT AREA: Photography, film and optics[br]b. 15 February 1564 Pisa, Italyd. 8 January 1642 Arcetri, near Florence, Italy[br]Italian mathematician, astronomer and physicist who established the principle of the pendulum and was first to exploit the telescope.[br]Galileo began studying medicine at the University of Pisa but soon turned to his real interests, mathematics, mechanics and astronomy. He became Professor of Mathematics at Pisa at the age of 25 and three years later moved to Padua. In 1610 he transferred to Florence. While still a student he discovered the isochronous property of the pendulum, probably by timing with his pulse the swings of a hanging lamp during a religious ceremony in Pisa Cathedral. He later designed a pendulum-controlled clock, but it was not constructed until after his death, and then not successfully; the first successful pendulum clock was made by the Dutch scientist Christiaan Huygens in 1656. Around 1590 Galileo established the laws of motion of falling bodies, by timing rolling balls down inclined planes and not, as was once widely believed, by dropping different weights from the Leaning Tower of Pisa. These and other observations received definitive treatment in his Discorsi e dimostrazioni matematiche intorno a due nuove scienzi attenenti alla, meccanica (Dialogues Concerning Two New Sciences…) which was completed in 1634 and first printed in 1638. This work also included Galileo's proof that the path of a projectile was a parabola and, most importantly, the development of the concept of inertia.In astronomy Galileo adopted the Copernican heliocentric theory of the universe while still in his twenties, but he lacked the evidence to promote it publicly. That evidence came with the invention of the telescope by the Dutch brothers Lippershey. Galileo heard of its invention in 1609 and had his own instrument constructed, with a convex object lens and concave eyepiece, a form which came to be known as the Galilean telescope. Galileo was the first to exploit the telescope successfully with a series of striking astronomical discoveries. He was also the first to publish the results of observations with the telescope, in his Sidereus nuncius (Starry Messenger) of 1610. All the discoveries told against the traditional view of the universe inherited from the ancient Greeks, and one in particular, that of the four satellites in orbit around Jupiter, supported the Copernican theory in that it showed that there could be another centre of motion in the universe besides the Earth: if Jupiter, why not the Sun? Galileo now felt confident enough to advocate the theory, but the advance of new ideas was opposed, not for the first or last time, by established opinion, personified in Galileo's time by the ecclesiastical authorities in Rome. Eventually he was forced to renounce the Copernican theory, at least in public, and turn to less contentious subjects such as the "two new sciences" of his last and most important work.[br]Bibliography1610, Sidereus nuncius (Starry Messenger); translation by A.Van Helden, 1989, Sidereus Nuncius, or the Sidereal Messenger; Chicago: University of Chicago Press.1623, Il Saggiatore (The Assayer).1632, Dialogo sopre i due massimi sistemi del mondo, tolemaico e copernicano (Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican); translation, 1967, Berkeley: University of California Press.1638, Discorsi e dimostrazioni matematiche intorno a due nuove scienzi attenenti allameccanica (Dialogues Concerning Two New Sciences…); translation, 1991, Buffalo, New York: Prometheus Books (reprint).Further ReadingG.de Santillana, 1955, The Crime of Galileo, Chicago: University of Chicago Press; also 1958, London: Heinemann.H.Stillman Drake, 1980, Galileo, Oxford: Oxford Paperbacks. M.Sharratt, 1994, Galileo: Decisive Innovator, Oxford: Blackwell.J.Reston, 1994, Galileo: A Life, New York: HarperCollins; also 1994, London: Cassell.A.Fantoli, 1994, Galileo: For Copemicanism and for the Church, trans. G.V.Coyne, South Bend, Indiana: University of Notre Dame Press.LRD -
7 Lippershey, Hans (Johannes)
SUBJECT AREA: Photography, film and optics[br]fl. sixteenth/seventeenth centuries the Netherlands[br]Dutch probable inventor of the telescope.[br]Lippershey was a spectacle maker of Middelburg, a contender for the invention of the telescope. It is said that about 1600 two children were playing about his workshop and chanced to place a convex and a concave lens in a line, and noted a great magnification of the nearby church. Lippershey confirmed this and started manufacture of "instruments for seeing at a distance". In 1608 he petitioned the States General of the Netherlands for a patent for thirty years. A committee appointed to look into the matter declared that the device was likely to be of use to the State and suggested the improvement of a binocular arrangement. Other Dutch glass-workers, however, put forward claims to have constructed similar instruments, and, in the confusion, the States General turned down Lippershey's plea and he received no financial reward or patent protection.[br]Further ReadingD.J.Boorstin, 1984, The Discoverers, London: J.M.Dent.IMcNBiographical history of technology > Lippershey, Hans (Johannes)
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8 Porta, Giovanni Battista (Giambattista) della
SUBJECT AREA: Steam and internal combustion engines[br]b. between 3 October and 15 November 1535 Vico Equense, near Naples, Italyd. 4 February 1615 Naples, Italy[br]Italian natural philosopher who published many scientific books, one of which covered ideas for the use of steam.[br]Giambattista della Porta spent most of his life in Naples, where some time before 1580 he established the Accademia dei Segreti, which met at his house. In 1611 he was enrolled among the Oziosi in Naples, then the most renowned literary academy. He was examined by the Inquisition, which, although he had become a lay brother of the Jesuits by 1585, banned all further publication of his books between 1592 and 1598.His first book, the Magiae Naturalis, which covered the secrets of nature, was published in 1558. He had been collecting material for it since the age of 15 and he saw that science should not merely represent theory and contemplation but must arrive at practical and experimental expression. In this work he described the hardening of files and pieces of armour on quite a large scale, and it included the best sixteenth-century description of heat treatment for hardening steel. In the 1589 edition of this work he covered ways of improving vision at a distance with concave and convex lenses; although he may have constructed a compound microscope, the history of this instrument effectively begins with Galileo. His theoretical and practical work on lenses paved the way for the telescope and he also explored the properties of parabolic mirrors.In 1563 he published a treatise on cryptography, De Furtivis Liter arum Notis, which he followed in 1566 with another on memory and mnemonic devices, Arte del Ricordare. In 1584 and 1585 he published treatises on horticulture and agriculture based on careful study and practice; in 1586 he published De Humana Physiognomonia, on human physiognomy, and in 1588 a treatise on the physiognomy of plants. In 1593 he published his De Refractione but, probably because of the ban by the Inquisition, no more were produced until the Spiritali in 1601 and his translation of Ptolemy's Almagest in 1605. In 1608 two new works appeared: a short treatise on military fortifications; and the De Distillatione. There was an important work on meteorology in 1610. In 1601 he described a device similar to Hero's mechanisms which opened temple doors, only Porta used steam pressure instead of air to force the water out of its box or container, up a pipe to where it emptied out into a higher container. Under the lower box there was a small steam boiler heated by a fire. He may also have been the first person to realize that condensed steam would form a vacuum, for there is a description of another piece of apparatus where water is drawn up into a container at the top of a long pipe. The container was first filled with steam so that, when cooled, a vacuum would be formed and water drawn up into it. These are the principles on which Thomas Savery's later steam-engine worked.[br]Further ReadingDictionary of Scientific Biography, 1975, Vol. XI, New York: C.Scribner's Sons (contains a full biography).H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (contains an account of his contributions to the early development of the steam-engine).C.Singer (ed.), 1957, A History of Technology, Vol. III, Oxford University Press (contains accounts of some of his other discoveries).I.Asimov (ed.), 1982, Biographical Encyclopaedia of Science and Technology, 2nd edn., New York: Doubleday.G.Sarton, 1957, Six wings: Men of Science in the Renaissance, London: Bodley Head, pp. 85–8.RLH / IMcNBiographical history of technology > Porta, Giovanni Battista (Giambattista) della
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