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21 Nervi, Pier Luigi
[br]b. 21 June 1891 Sondrio, Italyd. 9 January 1979 (?), Italy[br]Italian engineer who played a vital role in the use and adaptation of reinforced concrete as a structural material from the 1930s to the 1970s.[br]Nervi early established a reputation in the use of reinforced concrete with his stadium in Florence (1930–2). This elegant concrete structure combines graceful curves with functional solidity and is capable of seating some 35,000 spectators. The stadium was followed by the aircraft hangars built for the Italian Air Force at Orvieto and Ortebello, in which he spanned the vast roofs of the hangars with thin-shelled vaults supported by precast concrete beams and steel-reinforced ribs. The structural strength and subtle curves of these ribbed roofs set the pattern for Nervi's techniques, which he subsequently varied and elaborated on to solve problems that arose in further commissions.Immediately after the Second World War Italy was short of supplies of steel for structural purposes so, in contrast to the USA, Britain and Germany, did not for some years construct any quantity of steel-framed rectangular buildinngs used for offices, housing or industrial use. It was Nervi who led the way to a ferroconcrete approach, using a new type of structure based on these materials in the form of a fine steel mesh sprayed with cement mortar and used to roof all kinds of structures. It was a method that resulted in expressionist curves instead of rectangular blocks, and the first of his great exhibition halls at Turin (1949), with a vault span of 240 ft (73 m), was an early example of this technique. Nervi continued to create original and beautiful ferroconcrete structures of infinite variety: for example, the hall at the Lido di Roma, Ostia; the terme at Chianciano; and the three buildings that he designed for the Rome Olympics in 1960. The Palazzetto dello Sport is probably the most famous of these, for which he co-operated with the architect Annibale Vitellozzi to construct a small sports palace seating 5,000 spectators under a concrete "big top" of 194 ft (59 m) diameter, its enclosing walls supported by thirtysix guy ropes of concrete; inside, the elegant roof displays a floral quality. In 1960 Nervi returned to Turin to build his imaginative Palace of Labour for the centenary celebrations of Garibaldi and Victor Emmanuel in the city. This vast hall, like the Crystal Palace in England a century earlier (see Paxton), had to be built quickly and be suitable for later adaptation. It was therefore constructed partly in steel, and the metal supporting columns rose to palm-leaf capitals reminiscent of those in ancient Nile palaces.Nervi's aim was always to create functional buildings that simultaneously act by their aesthetic qualities as an effective educational influence. Functionalism for Nervi never became "brutalism". In consequence, his work is admired by the lay public as well as by architects. He collaborated with many of the outstanding architects of the day: with Gio Ponti on the Pirelli Building in Milan (1955–9); with Zehrfuss and Breuer on the Y-plan UNESCO Building in Paris (1953–7); and with Marcello Piacentini on the 16,000-seat Palazzo dello Sport in Rome. Nervi found time to write a number of books on building construction and design, lectured in the Universities of Rio de Janiero and Buenos Aires, and was for many years Professor of Technology and Technique of Construction in the Faculty of Architecture at the University of Rome. He continued to design new structures until well into the 1970s.[br]Principal Honours and DistinctionsRIBA Royal Gold Medal 1960. Royal Institute of Structural Engineers Gold Medal 1968. Honorary Degree Edinburgh University, Warsaw University, Munich University, London University, Harvard University. Member International Institute of Arts and Letters, Zurich; American Academy of Arts and Sciences; Royal Academy of Fine Arts, Stockholm.Bibliography1956, Structures, New York: Dodge.1945, Scienza o Arte del Costruire?, Rome: Bussola.Further ReadingP.Desideri et al., 1979, Pier Luigi Nervi, Bologna: Zanichelli.A.L.Huxtable, 1960, Masters of World Architecture; Pier Luigi Nervi, New York: Braziller.DY -
22 Psychology
We come therefore now to that knowledge whereunto the ancient oracle directeth us, which is the knowledge of ourselves; which deserveth the more accurate handling, by how much it toucheth us more nearly. This knowledge, as it is the end and term of natural philosophy in the intention of man, so notwithstanding it is but a portion of natural philosophy in the continent of nature.... [W]e proceed to human philosophy or Humanity, which hath two parts: the one considereth man segregate, or distributively; the other congregate, or in society. So as Human philosophy is either Simple and Particular, or Conjugate and Civil. Humanity Particular consisteth of the same parts whereof man consisteth; that is, of knowledges which respect the Body, and of knowledges that respect the Mind... how the one discloseth the other and how the one worketh upon the other... [:] the one is honored with the inquiry of Aristotle, and the other of Hippocrates. (Bacon, 1878, pp. 236-237)The claims of Psychology to rank as a distinct science are... not smaller but greater than those of any other science. If its phenomena are contemplated objectively, merely as nervo-muscular adjustments by which the higher organisms from moment to moment adapt their actions to environing co-existences and sequences, its degree of specialty, even then, entitles it to a separate place. The moment the element of feeling, or consciousness, is used to interpret nervo-muscular adjustments as thus exhibited in the living beings around, objective Psychology acquires an additional, and quite exceptional, distinction. (Spencer, 1896, p. 141)Kant once declared that psychology was incapable of ever raising itself to the rank of an exact natural science. The reasons that he gives... have often been repeated in later times. In the first place, Kant says, psychology cannot become an exact science because mathematics is inapplicable to the phenomena of the internal sense; the pure internal perception, in which mental phenomena must be constructed,-time,-has but one dimension. In the second place, however, it cannot even become an experimental science, because in it the manifold of internal observation cannot be arbitrarily varied,-still less, another thinking subject be submitted to one's experiments, comformably to the end in view; moreover, the very fact of observation means alteration of the observed object. (Wundt, 1904, p. 6)It is [Gustav] Fechner's service to have found and followed the true way; to have shown us how a "mathematical psychology" may, within certain limits, be realized in practice.... He was the first to show how Herbart's idea of an "exact psychology" might be turned to practical account. (Wundt, 1904, pp. 6-7)"Mind," "intellect," "reason," "understanding," etc. are concepts... that existed before the advent of any scientific psychology. The fact that the naive consciousness always and everywhere points to internal experience as a special source of knowledge, may, therefore, be accepted for the moment as sufficient testimony to the rights of psychology as science.... "Mind," will accordingly be the subject, to which we attribute all the separate facts of internal observation as predicates. The subject itself is determined p. 17) wholly and exclusively by its predicates. (Wundt, 1904,The study of animal psychology may be approached from two different points of view. We may set out from the notion of a kind of comparative physiology of mind, a universal history of the development of mental life in the organic world. Or we may make human psychology the principal object of investigation. Then, the expressions of mental life in animals will be taken into account only so far as they throw light upon the evolution of consciousness in man.... Human psychology... may confine itself altogether to man, and generally has done so to far too great an extent. There are plenty of psychological text-books from which you would hardly gather that there was any other conscious life than the human. (Wundt, 1907, pp. 340-341)The Behaviorist began his own formulation of the problem of psychology by sweeping aside all medieval conceptions. He dropped from his scientific vocabulary all subjective terms such as sensation, perception, image, desire, purpose, and even thinking and emotion as they were subjectively defined. (Watson, 1930, pp. 5-6)According to the medieval classification of the sciences, psychology is merely a chapter of special physics, although the most important chapter; for man is a microcosm; he is the central figure of the universe. (deWulf, 1956, p. 125)At the beginning of this century the prevailing thesis in psychology was Associationism.... Behavior proceeded by the stream of associations: each association produced its successors, and acquired new attachments with the sensations arriving from the environment.In the first decade of the century a reaction developed to this doctrine through the work of the Wurzburg school. Rejecting the notion of a completely self-determining stream of associations, it introduced the task ( Aufgabe) as a necessary factor in describing the process of thinking. The task gave direction to thought. A noteworthy innovation of the Wurzburg school was the use of systematic introspection to shed light on the thinking process and the contents of consciousness. The result was a blend of mechanics and phenomenalism, which gave rise in turn to two divergent antitheses, Behaviorism and the Gestalt movement. The behavioristic reaction insisted that introspection was a highly unstable, subjective procedure.... Behaviorism reformulated the task of psychology as one of explaining the response of organisms as a function of the stimuli impinging upon them and measuring both objectively. However, Behaviorism accepted, and indeed reinforced, the mechanistic assumption that the connections between stimulus and response were formed and maintained as simple, determinate functions of the environment.The Gestalt reaction took an opposite turn. It rejected the mechanistic nature of the associationist doctrine but maintained the value of phenomenal observation. In many ways it continued the Wurzburg school's insistence that thinking was more than association-thinking has direction given to it by the task or by the set of the subject. Gestalt psychology elaborated this doctrine in genuinely new ways in terms of holistic principles of organization.Today psychology lives in a state of relatively stable tension between the poles of Behaviorism and Gestalt psychology.... (Newell & Simon, 1963, pp. 279-280)As I examine the fate of our oppositions, looking at those already in existence as guide to how they fare and shape the course of science, it seems to me that clarity is never achieved. Matters simply become muddier and muddier as we go down through time. Thus, far from providing the rungs of a ladder by which psychology gradually climbs to clarity, this form of conceptual structure leads rather to an ever increasing pile of issues, which we weary of or become diverted from, but never really settle. (Newell, 1973b, pp. 288-289)The subject matter of psychology is as old as reflection. Its broad practical aims are as dated as human societies. Human beings, in any period, have not been indifferent to the validity of their knowledge, unconcerned with the causes of their behavior or that of their prey and predators. Our distant ancestors, no less than we, wrestled with the problems of social organization, child rearing, competition, authority, individual differences, personal safety. Solving these problems required insights-no matter how untutored-into the psychological dimensions of life. Thus, if we are to follow the convention of treating psychology as a young discipline, we must have in mind something other than its subject matter. We must mean that it is young in the sense that physics was young at the time of Archimedes or in the sense that geometry was "founded" by Euclid and "fathered" by Thales. Sailing vessels were launched long before Archimedes discovered the laws of bouyancy [ sic], and pillars of identical circumference were constructed before anyone knew that C IID. We do not consider the ship builders and stone cutters of antiquity physicists and geometers. Nor were the ancient cave dwellers psychologists merely because they rewarded the good conduct of their children. The archives of folk wisdom contain a remarkable collection of achievements, but craft-no matter how perfected-is not science, nor is a litany of successful accidents a discipline. If psychology is young, it is young as a scientific discipline but it is far from clear that psychology has attained this status. (Robinson, 1986, p. 12)Historical dictionary of quotations in cognitive science > Psychology
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23 Bailey, Sir Donald Coleman
SUBJECT AREA: Civil engineering[br]b. 15 September 1901 Rotherham, Yorkshire, Englandd. 5 May 1985 Bournemouth, Dorset, England[br]English engineer, designer of the Bailey bridge.[br]Bailey was educated at the Leys School, Cambridge, before going to Sheffield University where he studied for a degree in engineering. He joined the Civil Service in 1928 and was posted to the staff of the Experimental Bridging Establishment of the Ministry of Supply at Christchurch, Hampshire. There he continued his boyhood hobby of making model bridges of wood and string. He evolved a design for a prefabricated metal bridge assembled from welded panels linked by pinned joints; this became known as the Bailey bridge. Its design was accepted by the War Office in 1941 and from then on it was used throughout the subsequent conflict of the Second World War. It was a great improvement on its predecessor, the Inglis bridge, designed by a Cambridge University professor of engineering, Charles Inglis, with tubular members that were 10 or 12 ft (3.66 m) long; this bridge was notoriously difficult to construct, particularly in adverse weather conditions, whereas the Bailey bridge's panels and joints were far more manageable and easy to assemble. The simple and standardized component parts of the Bailey bridge made it highly adaptable: it could be strengthened by increasing the number of truss girders, and wide rivers could be crossed by a series of Bailey bridges connected by pontoons. Field Marshal Montgomery is recorded as saying that without the Bailey bridge we should not have won the war'.[br]Principal Honours and DistinctionsKnighted 1946.Further ReadingObituary, 1985, The Guardian 6 May.IMcNBiographical history of technology > Bailey, Sir Donald Coleman
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24 Colpitts, Edwin Henry
[br]b. 9 January 1872 Pointe de Bute, Canadad. 6 March 1949 Orange, New Jersey, USA[br]Canadian physicist and electrical engineer responsible for important developments in electronic-circuit technology.[br]Colpitts obtained Bachelor's degrees at Mount Allison University, Sackville, New Brunswick, and Harvard in 1894 and 1896, respectively, followed by a Master's degree at Harvard in 1897. After two years as assistant to the professor of physics there, he joined the American Bell Telephone Company. When the Bell Company was reorganized in 1907, he moved to the Western Electric branch of the company in New York as Head of the Physical Laboratories. In 1911 he became a director of the Research Laboratories, and in 1917 he became Assistant Chief Engineer of the company. During this time he invented both the push-pull amplifier and the Colpitts oscillator, both major developments in communications. In 1917, during the First World War, he spent some time in France helping to set up the US Signal Corps Research Laboratories. Afterwards he continued to do much, both technically and as a manager, to place telephone communications on a firm scientific basis, retiring as Vice-President of the Bell Telephone Laboratories in 1937. With the outbreak of the Second World War in 1941 he was recalled from retirement and appointed Director of the Engineering Foundation to work on submarine warfare techniques, particularly echo-ranging.[br]Principal Honours and DistinctionsOrder of the Rising Sun, Japan, 1938. US Medal of Merit 1948.Bibliography1919, with E.B.Craft, "Radio telephony", Proceedings of the American Institution of Electrical Engineers 38:337.1921, with O.B.Blackwell, "Carrier current telephony and telegraphy", American Institute of Electrical Engineers Transactions 40:205.11 September 1915, US reissue patent no. 15,538 (control device for radio signalling).28 August 1922, US patent no. 1,479,638 (multiple signal reception).Further ReadingM.D.Fagen, 1975, A History of Engineering \& Science in the Bell System, Vol. 1, Bell Laboratories.See also: Hartley, Ralph V.L.KF -
25 Shannon, Claude Elwood
[br]b. 30 April 1916 Gaylord, Michigan, USA[br]American mathematician, creator of information theory.[br]As a child, Shannon tinkered with radio kits and enjoyed solving puzzles, particularly crypto-graphic ones. He graduated from the University of Michigan in 1936 with a Bachelor of Science in mathematics and electrical engineering, and earned his Master's degree from the Massachusetts Institute of Technology (MIT) in 1937. His thesis on applying Boolean algebra to switching circuits has since been acclaimed as possibly the most significant this century. Shannon earned his PhD in mathematics from MIT in 1940 with a dissertation on the mathematics of genetic transmission.Shannon spent a year at the Institute for Advanced Study in Princeton, then in 1941 joined Bell Telephone Laboratories, where he began studying the relative efficiency of alternative transmission systems. Work on digital encryption systems during the Second World War led him to think that just as ciphers hide information from the enemy, "encoding" information could also protect it from noise. About 1948, he decided that the amount of information was best expressed quantitatively in a two-value number system, using only the digits 0 and 1. John Tukey, a Princeton colleague, named these units "binary digits" (or, for short, "bits"). Almost all digital computers and communications systems use such on-off, or two-state logic as their basis of operation.Also in the 1940s, building on the work of H. Nyquist and R.V.L. Hartley, Shannon proved that there was an upper limit to the amount of information that could be transmitted through a communications channel in a unit of time, which could be approached but never reached because real transmissions are subject to interference (noise). This was the beginning of information theory, which has been used by others in attempts to quantify many sciences and technologies, as well as subjects in the humanities, but with mixed results. Before 1970, when integrated circuits were developed, Shannon's theory was not the preferred circuit-and-transmission design tool it has since become.Shannon was also a pioneer in the field of artificial intelligence, claiming that computing machines could be used to manipulate symbols as well as do calculations. His 1953 paper on computers and automata proposed that digital computers were capable of tasks then thought exclusively the province of living organisms. In 1956 he left Bell Laboratories to join the MIT faculty as Professor of Communications Science.On the lighter side, Shannon has built many devices that play games, and in particular has made a scientific study of juggling.[br]Principal Honours and DistinctionsNational Medal of Science. Institute of Electrical and Electronics Engineers Medal of Honor, Kyoto Prize.BibliographyHis seminal paper (on what has subsequently become known as information theory) was entitled "The mathematical theory of communications", first published in Bell System Technical Journal in 1948; it is also available in a monograph (written with Warren Weaver) published by the University of Illinois Press in 1949, and in Key Papers in the Development of Information Theory, ed. David Slepian, IEEE Press, 1974, 1988. For readers who want all of Shannon's works, see N.J.A.Sloane and A.D.Wyner, 1992, TheCollected Papers of Claude E.Shannon.HO -
26 Stibitz, George R.
SUBJECT AREA: Electronics and information technology[br]b. 20 April 1904 York, Pennsylvania, USA[br]American mathematician responsible for the conception of the Bell Laboratories "Complex " computer.[br]Stibitz spent his early years in Dayton, Ohio, and obtained his first degree at Denison University, Granville, Ohio, his MS from Union College, Schenectady, New York, in 1927 and his PhD in mathematical physics from Cornell University, Ithaca, New York, in 1930. After working for a time for General Electric, he joined Bell Laboratories to work on various communications problems. In 1937 he started to experiment at home with telephone relays as the basis of a calculator for addition, multiplication and division. Initially this was based on binary arithmetic, but later he used binary-coded decimal (BCD) and was able to cope with complex numbers. In November 1938 the ideas were officially taken up by Bell Laboratories and, with S.B.Williams as Project Manager, Stibitz built a complex-number computer known as "Complex", or Relay I, which became operational on 8 January 1940.With the outbreak of the Second World War, he was co-opted to the National Defence Research Council to work on anti-aircraft (AA) gun control, and this led to Bell Laboratories Relay II computer, which was completed in 1943 and which had 500 relays, bi-quinary code and selfchecking of errors. A further computer, Relay III, was used for ballistic simulation of actual AA shell explosions and was followed by more machines before and after Stibitz left Bell after the end of the war. Stibitz then became a computer consultant, involved in particular with the development of the UNIVAC computer by John Mauchly and J.Presper Eckert.[br]Principal Honours and DistinctionsInstitute of Electrical and Electronics Engineers Emanuel R.Priore Award 1977.Bibliography1957, with J.A.Larrivee, Mathematics and Computers, New York: McGraw-Hill. 1967, "The Relay computer at the Bell Laboratories", Datamation 35.Further ReadingE.Loveday, 1977, "George Stibitz and the Bell Labs Relay computer", Datamation 80. M.R.Williams, 1985, A History of Computing Technology, London: Prentice-Hall.KF -
27 Marton, Ladislaus (Laslo)
[br]b. 15 August 1901 Budapest Hungary[br]Hungarian physicist, pioneer of the development and practical application of the electron microscope.[br]He studied and obtained his degree at Zurich in 1924 and undertook research there until 1925, when he moved to Budapest to work at the Tungsram Lamp Company. He moved to the University of Brussels in 1928, and during the ensuing ten years was involved in the construction and development of a focusing electron microscope. With the second of these he was able to take micrographs of cells in 1932 and of a bacterium in 1937.In 1941 he moved to the USA to work with Radio Corporation of America (RCA).[br]Principal Honours and DistinctionsInternational Union Against Cancer Medal 1938. Verhagen Medical, Brussels 1947. US Department of Commerce Gold Medal 1955.Bibliography1947, Advances in Electronics and Electron Physics.1957, Methods of Experimental Physics.1968, Early History of the Electron Microscope.Further ReadingWatt, 1984, Principles and Practice of Electron Microscopy, Cambridge. M.Hayat, 1973–80, Principles and Techniques of Electron Microscopy.MGBiographical history of technology > Marton, Ladislaus (Laslo)
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28 master
1. feminine - mistress; noun1) (a person or thing that commands or controls: I'm master in this house!) señor, dueño; señora, dueña2) (an owner (of a slave, dog etc): The dog ran to its master.) amo, ama3) (a male teacher: the Maths master.) maestro, profesor; maestra, profesora4) (the commander of a merchant ship: the ship's master.) capitán, patrón; capitana, patrona5) (a person very skilled in an art, science etc: He's a real master at painting.) maestro, maestra6) ((with capital) a polite title for a boy, in writing or in speaking: Master John Smith.) señor; señora
2. adjective((of a person in a job) fully qualified, skilled and experienced: a master builder/mariner/plumber.) maestro, experto
3. verb1) (to overcome (an opponent, handicap etc): She has mastered her fear of heights.) superar, vencer, dominar2) (to become skilful in: I don't think I'll ever master arithmetic.) dominar, ser experto en•- masterfully
- masterfulness
- masterly
- masterliness
- mastery
- master key
- mastermind
4. verb(to plan (such a scheme): Who masterminded the robbery?) planear, dirigir- master stroke
- master switch
- master of ceremonies
master1 n1. señor / amo / dueño2. maestro / profesormaster2 vb dominar
Multiple Entries: master máster
máster /'master/ sustantivo masculino (pl◊ - ters)1 (Audio, Vídeo) master 2 (Educ) master's degree
máster sustantivo masculino master's degree ' máster' also found in these entries: Spanish: ama - amo - dominar - jefa - jefe - maestra - maestro - capitán - llave English: destiny - hard - MA - master - master copy - master key - master plan - master's degree - MBA - MPhil - MSc - gang - head - MC - MS - school - stationtr['mɑːstəSMALLr/SMALL]3 SMALLBRITISH ENGLISH/SMALL (teacher - infant school) maestro, profesor nombre masculino; (- secondary) profesor nombre masculino4 (expert, artist, musician, etc) maestro5 (original copy of film, tape, etc) original nombre masculino1 Master SMALLEDUCATION/SMALL (second level degree) máster nombre masculino; (holder of master's degree) máster nombre masulino o femenino; (head of certain university colleges) director,-ra1 (expert, skilled) maestro,-a, experto,-a1 (original) original1 (overall, complete) total, general, global1 (main, principal) principal, maestro,-a1 (control) dominar; (overcome) superar, vencer1 (learn - subject, skill) llegar a dominar; (- craft) llegar a ser experto,-a en\SMALLIDIOMATIC EXPRESSION/SMALLto be master of a situation ser dueño de una situaciónto be master of one's own fate decidir su propio destinoto meet one's master ser vencido,-amaster bedroom dormitorio principalmaster builder (skilled workman) maestro de obras 2 (self-employed builder) contratista nombre masulino o femeninomaster copy original nombre masculinomaster key llave nombre femenino maestramaster of ceremonies maestro de ceremoniasmaster plan proyecto maestromaster race (nazi) raza superiormaster's degree licenciatura con tesina, master nombre masculinomaster switch interruptor nombre masculino centralmaster ['mæstər] vt1) subdue: dominar2) : llegar a dominarshe mastered French: llegó a dominar el francésmaster n1) teacher: maestro m, profesor m2) expert: experto m, -ta f; maestro m, -tra f3) : amo m (de animales o esclavos), señor m (de la casa)4)master's degree : maestría fadj.• amo, -a adj.• maestro, -a adj.• magistral adj.• principal adj.n.• amo s.m.• capitán s.m.• director s.m.• dueño s.m.• maestro s.m.• profesor s.m.• señor s.m.• señorito s.m.v.• amaestrar v.• domar v.• domeñar v.• dominar v.• poseer v.• saber v.(§pres: sé, sabes...) subj: sep-pret: sup-fut/c: sabr-•)• señorear v.• vencer v.
I 'mæstər, 'mɑːstə(r)1) ( of household) señor m, amo m; ( of animal) amo m, dueño m; ( of servant) amo m, patrón mto be one's own master — no tener* que darle cuentas a nadie
2) ( expert)master OF something — maestro, -tra m,f de algo, experto, -ta m,f en algo
to be a past master of something — ser* un maestro consumado en algo
3) ( Educ)a) ( degree)master's (degree) — master m, maestría f
Master of Arts/Science — poseedor de una maestría en Humanidades/Ciencias
b) (BrE) ( in secondary school) profesor m4) ( Naut) capitán m5) Mastera) ( Hist) ( as form of address used by servants) el señor; ( to younger man) señoritob) ( on letters to young boys) Sr6) ( for copies) (Audio, Comput, Print) original m
II
transitive verb \<\<technique/subject\>\> llegar* a dominar
III
adjective (before n, no comp)a) ( expert)master baker/builder — maestro m panadero/de obras
b) ( main) <switch/key> maestromaster bedroom — dormitorio m principal
master copy — original m
['mɑːstǝ(r)]master plan — plan m general
1. N- meet one's master- serve two masters2) (Naut) [of ship] capitán m4) (=expert) experto(-a) m / fpast6) (Univ)Master of Arts/Science — (=qualification) master m en letras/ciencias; (=person) persona que posee un master en letras/ciencias
See:see cultural note DEGREE in degree2.VT [+ subject, situation, technique] dominar3.CPDmaster baker N — maestro m panadero
master bedroom N — dormitorio m principal
master builder N — maestro m de obras
master card N — carta f maestra
master class N — clase f magistral
master copy N — original m
master disk N — disco m maestro
master file N — fichero m maestro
master key N — llave f maestra
master mariner N — capitán m
master mason N — albañil mf maestro(-a)
master of ceremonies N — maestro m de ceremonias; [of show] presentador m, animador m
master of foxhounds N — cazador m mayor
Master of the Rolls N — (Brit) juez mf del tribunal de apelación
master plan N — plan m maestro, plan m rector
master sergeant N — (US) sargento mf mayor
master spy N — jefe mf de espías, controlador(a) m / f de espías
master switch N — interruptor m general
master tape N — máster m, cinta f maestra
* * *
I ['mæstər, 'mɑːstə(r)]1) ( of household) señor m, amo m; ( of animal) amo m, dueño m; ( of servant) amo m, patrón mto be one's own master — no tener* que darle cuentas a nadie
2) ( expert)master OF something — maestro, -tra m,f de algo, experto, -ta m,f en algo
to be a past master of something — ser* un maestro consumado en algo
3) ( Educ)a) ( degree)master's (degree) — master m, maestría f
Master of Arts/Science — poseedor de una maestría en Humanidades/Ciencias
b) (BrE) ( in secondary school) profesor m4) ( Naut) capitán m5) Mastera) ( Hist) ( as form of address used by servants) el señor; ( to younger man) señoritob) ( on letters to young boys) Sr6) ( for copies) (Audio, Comput, Print) original m
II
transitive verb \<\<technique/subject\>\> llegar* a dominar
III
adjective (before n, no comp)a) ( expert)master baker/builder — maestro m panadero/de obras
b) ( main) <switch/key> maestromaster bedroom — dormitorio m principal
master copy — original m
master plan — plan m general
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29 first
fə:st
1. adjective, adverb(before all others in place, time or rank: the first person to arrive; The boy spoke first.) primero
2. adverb(before doing anything else: `Shall we eat now?' `Wash your hands first!) primero
3. noun(the person, animal etc that does something before any other person, animal etc: the first to arrive.) primero- firstly- first aid
- first-born
- first-class
- first-hand
- first-rate
- at first
- at first hand
- first and foremost
- first of all
first1 adj primerofirst2 adv1. primerohe came first in the race llegó el primero en la carrera / ganó la carrerayou play later, first you must finish your lunch podrás jugar luego, primero acaba de comer2. por primera veztr[fɜːst]1 primero,-a■ what was your first job? ¿cuál fue tu primer trabajo?■ who was the first man on the moon? ¿quién fue el primer hombre que pisó la luna?■ for the first time in my life... por primera vez en mi vida...■ my first reaction was to... mi reacción inicial fue...1 (before anything else) primero■ when you get up, what do you do first? al levantarte, ¿qué es lo primero que haces?■ first, I have to go to the bank primero, tengo que ir al banco2 (for the first time) por primera vez■ when we first met, he hated me cuando nos conocimos, me odiaba3 (in first place) primero, en primer lugar■ there are several reasons: first,... hay varias razones: en primer lugar,...4 (in preference to) antes■ he said he'd die first dijo que antes, preferiría morir1 la primera vez■ it's a first for me too! ¡es la primera vez para mí también!1 el primero, la primera, lo primero1 (first-class degree) ≈ sobresaliente nombre masculino (título universitario que corresponde a la nota más alta)2 (gear) primera\SMALLIDIOMATIC EXPRESSION/SMALLat first al principioat first sight a primera vistafirst come, first served el que llega primero tiene prioridadfirst of all en primer lugarfirst thing a primera hora (de la mañana)first things first lo primero es lo primerofrom the first desde el principiofrom first to last de principio a fin, desde el principio hasta el finalfirst aid primeros auxilios nombre masculino pluralfirst class primera clase nombre femeninoFirst Communion primera comunión nombre femeninoFirst Lady Primera Damafirst lieutenant teniente nombre masculino de navíofirst mate primer oficial nombre masculinofirst name nombre nombre masculino de pilafirst night estrenofirst offender delincuente nombre masculino sin antecedentesfirst person SMALLLINGUISTICS/SMALL primera personaFirst World War Primera Guerra Mundialfirst ['fərst] adv1) : primerofinish your homework first: primero termina tu tareafirst and foremost: ante todofirst of all: en primer lugar2) : por primera vezI saw it first in Boston: lo vi por primera vez en Bostonfirst adj1) : primerothe first time: la primera vezat first sight: a primera vistain the first place: en primer lugarthe first ten applicants: los diez primeros candidatos2) foremost: principal, primerofirst tenor: tenor principalfirst n1) : primero m, -ra f (en una serie)2) : primero m, primera parte f4)at first : al principioadj.• delantero, -a adj.• original adj.• primer adj.• primero, -a adj.• principal adj.adv.• primera velocidad adv.• primero adv.n.• primero s.m.
I fɜːrst, fɜːst1)Henry I — (léase: Henry the First) Enrique I (read as: Enrique primero)
who's going to be first? — ¿quién va a ser el primero?
our horse was first — nuestro caballo llegó en primer lugar or el primero
b) (in seniority, standing) primerothe first eleven/fifteen — (BrE) el equipo titular
she's first in line to the throne — está primera or es la primera en la línea de sucesión al trono
2) ( elliptical use)he'll be arriving on the first (of the month) — llegará el primero or (Esp tb) el uno (del mes)
he fell at the first — cayó en la primera valla (or el primer obstáculo etc)
he/she was the first to arrive — fue el primero/la primera en llegar
the first she knew about it was when... — la primera noticia que tuvo de ello fue cuando...
3) (in phrases)from the first — desde el principio, desde el primer momento
II
1)a) ( ahead of others) primerowhich comes first, your family or your career? — ¿para ti qué está primero, tu familia o tu carrera?
I always put my children first — para mí antes que nada or primero están mis hijos
first come, first served: tickets will be available on a first come, first served basis — se adjudicará(n) las entradas por riguroso orden de solicitud (or llegada etc)
b) (before other actions, events) primero, en primer lugarfirst, I want to thank everyone for coming — en primer lugar or primero quiero agradecerles a todos que hayan venido
c) ( beforehand) antes, primerod) ( for the first time) por primera veze) ( rather) antesform a coalition? I'd resign first — ¿formar una coalición? antes (que eso) renuncio!
2) (in phrases)first of all — en primer lugar, antes que nada
III
a) first (gear) ( Auto) (no art) primera fb) (original idea, accomplishment) primicia f[fɜːst]1.ADJ primero; (before m sing n) primerI was first! — ¡yo iba or estaba primero!
the first three correct answers win a prize — las tres primeras respuestas correctas se llevan un premio
•
at first — al principioinstance 1., 2), thing 2)to win first place — (in competition) conseguir el primer puesto, ganar
2. ADV1) (in place, priority) primerofirst one, then another — primero uno, después otro
we arrived first — fuimos los primeros en llegar, llegamos los primeros
women and children first! — ¡las mujeres y los niños primero!
•
first of all — ante todo, antes que nada•
to come first — (in race) ganar, llegar el primero; (=have priority) estar primero, tener prioridadthe customer/your homework must come first — el cliente es lo primero/tus deberes son lo primero
•
first and foremost — ante todo, antes que nada•
you go first! — ¡tú primero!, ¡pasa tú!•
head first — de cabeza•
you have to put your children's needs first — primero están las necesidades de tus hijosfree tickets, on a first-come-first-served basis — entradas gratis, por riguroso orden de llegada
2) (in time) (=before anything else) primero, antes de nadafirst, I need a drink — primero or antes de nada or antes que nada, necesito una copa
first, I don't like it, second, I haven't got the money — lo primero: no me gusta, lo segundo: no dispongo del dinero
•
first off * — primero de todo, antes de nada3) (=for the first time) por primera vez4) (=rather) primero, anteslet him in this house? I'd kill him first! — ¿dejarle pisar esta casa? ¡primero or antes lo mato!
I'd die first! — ¡antes me muero!
3.PRONthe first of January — el primero de enero, el uno de enero
it's the first I've heard of it — ahora me entero, no lo sabía
•
he came in an easy first — llegó el primero con ventaja•
from the (very) first — desde el principio•
to be the first to do sth — ser el primero en hacer algothey were the first to arrive — fueron los primeros en llegar, llegaron los primeros
4. N1) (Aut) primera f2) (Brit) (Univ) ≈ sobresaliente mhe got a first in French — ≈ se ha licenciado en francés con una media de sobresaliente
See:see cultural note DEGREE in degree5.CPDfirst-aidfirst aider N — socorrista mf
first base N — (Baseball) primera base f
first blood N —
•
to draw first blood — anotar el primer tanto•
first blood to sb — primer tanto para algnfirst cousin N — primo(-a) m / f hermano(-a)
first degree N — licenciatura f
first edition N — primera edición f ; [of early or rare book] edición f príncipe
first family N (US) [of president] —
first form or year N — (Scol) primer curso de secundaria
first-year student — (Univ) estudiante mf de primer año (de carrera universitaria)
first gear N — (Aut) primera f
first grade N — (US) primero m de primaria; first-grade
first hand N —
•
at first hand — directamente- see sth at first handfirst lady N — (US) primera dama f
first language N — (=mother tongue) lengua f materna; [of country] lengua f principal
first lieutenant N — (US) (Aer) teniente mf ; (Brit) (Naut) teniente mf de navío
first light N — amanecer m, alba f
•
at first light — al amanecer, al albafirst mate N — primer oficial m, primera oficial f
first minister N — (in Scotland) primer(a) ministro(-a) m / f
first name N — nombre m (de pila)
first night N — (Theat) estreno m
first offender N — (Jur) delincuente mf sin antecedentes penales
first officer N — primer oficial m, primera oficial f
first performance N — (Theat, Mus) estreno m
first person N — (Ling) primera persona f
first person plural N (Gram) —
first school N — (Brit) escuela para niños entre cinco y nueve años
first secretary, First Secretary N — (in Wales) primer(a) ministro(-a) m / f de Gales
first violin N — primer violín m, primera violín f
First World N —
First World War N —
First World War battlefield N — campo m de batalla de la Primera Guerra Mundial
first year N (Scol) — = first form
* * *
I [fɜːrst, fɜːst]1)Henry I — (léase: Henry the First) Enrique I (read as: Enrique primero)
who's going to be first? — ¿quién va a ser el primero?
our horse was first — nuestro caballo llegó en primer lugar or el primero
b) (in seniority, standing) primerothe first eleven/fifteen — (BrE) el equipo titular
she's first in line to the throne — está primera or es la primera en la línea de sucesión al trono
2) ( elliptical use)he'll be arriving on the first (of the month) — llegará el primero or (Esp tb) el uno (del mes)
he fell at the first — cayó en la primera valla (or el primer obstáculo etc)
he/she was the first to arrive — fue el primero/la primera en llegar
the first she knew about it was when... — la primera noticia que tuvo de ello fue cuando...
3) (in phrases)from the first — desde el principio, desde el primer momento
II
1)a) ( ahead of others) primerowhich comes first, your family or your career? — ¿para ti qué está primero, tu familia o tu carrera?
I always put my children first — para mí antes que nada or primero están mis hijos
first come, first served: tickets will be available on a first come, first served basis — se adjudicará(n) las entradas por riguroso orden de solicitud (or llegada etc)
b) (before other actions, events) primero, en primer lugarfirst, I want to thank everyone for coming — en primer lugar or primero quiero agradecerles a todos que hayan venido
c) ( beforehand) antes, primerod) ( for the first time) por primera veze) ( rather) antesform a coalition? I'd resign first — ¿formar una coalición? antes (que eso) renuncio!
2) (in phrases)first of all — en primer lugar, antes que nada
III
a) first (gear) ( Auto) (no art) primera fb) (original idea, accomplishment) primicia f -
30 lead
Ⅰ.lead1 [led]1 noun∎ it's made of lead c'est en plomb∎ they pumped him full of lead ils l'ont plombé(c) (in pencil) mine f(d) (piece of lead → for sounding) plomb m (de sonde); (→ on car wheel, fishing line) plomb m; Typography interligne m∎ to get the lead out (of one's pants) se magner (le train);∎ very familiar that'll put some lead in your pencil! (invigorate) ça te requinquera!;∎ very familiar to have lead in one's pencil (be sexually potent) ne pas avoir de problèmes pour bander(b) Typography interligner(made of lead) de ou en plomb; (containing lead) plombifère;∎ familiar to go down like a lead balloon tomber à plat□British Building industry (on roof) plombs mpl (de couverture); (on window) plombures fpl, plombs mpl►► lead crystal verre m de ou au plomb;lead glass verre m de ou au plomb;lead ore minerai m de plomb;lead oxide oxyde m de plomb;lead paint peinture f à base de plomb;lead pencil crayon m noir ou à papier ou à mine de plomb;lead poisoning Medicine intoxication f par le plomb, saturnisme m; American familiar (death) mort f par balle(s); (injury) blessure f par balle(s);lead pipe tuyau m de plomb;lead shot grenaille f de plombTypography (lines of text) augmenter l'interlignage deⅡ.lead2 [li:d]tête ⇒ 1 (a) initiative ⇒ 1 (b) indice ⇒ 1 (c) gros titre ⇒ 1 (d) rôle principal ⇒ 1 (e) laisse ⇒ 1 (g) fil ⇒ 1 (h) mener ⇒ 2 (a), 2 (c), 2 (e) être à la tête de ⇒ 2 (b) diriger ⇒ 2 (b) amener ⇒ 2 (d) aller devant ⇒ 3 (d) principal ⇒ 4(pt & pp led [led])1 noun∎ to be in the lead être en tête, mener;∎ to have a 10-point/10-length lead avoir 10 points/10 longueurs d'avance;∎ to have a good lead over the rest of the field avoir une bonne avance sur les autres concurrents;∎ he's opened up a tremendous lead il a pris une avance considérable;∎ France are hanging on to the lead (in race) la France reste en tête de la course; (in points table) la France reste en tête du classement(b) (initiative) initiative f;∎ he took the lead in asking questions il fut le premier à poser des questions;∎ take your lead from me prenez exemple sur moi;∎ to follow sb's lead suivre l'exemple de qn;∎ it's up to the government to give a lead on housing policy c'est au gouvernement (qu'il revient) de donner l'exemple en matière de politique du logement(c) (indication, clue) indice m, piste f;∎ to give sb a lead mettre qn sur la voie;∎ the police have several leads la police tient plusieurs pistes;∎ we're currently following up an important lead nous sommes actuellement sur une piste prometteuse∎ the news made the lead in all the papers la nouvelle était à la une de tous les journaux;∎ the 'Telegraph' opens with a lead on the Middle East crisis le 'Telegraph' consacre sa une à la crise au Proche-Orient(e) Cinema & Theatre (role) rôle m principal; (actor) premier rôle m masculin; (actress) premier rôle m féminin;∎ Jude Law plays the male lead Jude Law tient le premier rôle masculin∎ to have the lead jouer le premier;∎ your lead! à vous de jouer!;∎ whose lead is it? c'est à qui de jouer?;∎ you must follow the lead il faut fournir à la couleur demandée;∎ a heart lead une ouverture à cœur∎ dogs must be kept on a lead (sign) les chiens doivent être tenus en laisse(h) Electricity fil m(a) (take, guide) mener, emmener, conduire;∎ to lead sb somewhere mener ou conduire qn quelque part;∎ I was led into the garden on m'a emmené ou conduit dans le jardin;∎ he led them across the lawn il leur fit traverser la pelouse;∎ she led him down the stairs elle lui fit descendre l'escalier;∎ she led them to safety elle les a conduits en lieu sûr;∎ to lead an army into battle mener une armée au combat;∎ to lead a team to victory mener une équipe à la victoire;∎ the captain led the team onto the field le capitaine a conduit son équipe sur le terrain;∎ she led them through the garden (to get out) elle les fit passer par le jardin; (to visit) elle leur fit visiter le jardin;∎ literary he led her to the altar il la prit pour épouse;∎ to lead the way montrer le chemin;∎ police motorcyclists led the way des motards de la police ouvraient la route;∎ they led the cable along the edge of the floor ils ont fait passé le câble par terre, le long du mur;∎ Bible lead us not into temptation ne nous soumets pas à la tentation;∎ proverb you can lead a horse to water but you cannot make him drink on ne saurait faire boire un âne qui n'a pas soif;∎ figurative to lead sb up the garden path mener qn en bateau∎ to lead the prayers/singing diriger la prière/les chants∎ Stardust is leading Black Beauty by 10 lengths Stardust a pris 10 longueurs d'avance sur Black Beauty;∎ to lead the field mener;∎ to lead sb by 8 points avoir une avance sur qn de 8 points;∎ figurative Great Britain leads the field in heart transplant technology la Grande-Bretagne est le pays le plus avancé dans le domaine des greffes cardiaques∎ to lead sb to do sth amener qn à faire qch;∎ despair led him to commit suicide le désespoir l'a poussé au suicide;∎ he led me to believe (that) he was innocent il m'a amené à croire qu'il était innocent;∎ everything leads us to believe (that) she is still alive tout porte à croire ou nous avons toutes les raisons de croire qu'elle est encore en vie;∎ I was led to the conclusion that he had been lying all along je suis arrivé à la conclusion qu'il mentait depuis le début;∎ what led you to apply for this job? qu'est-ce qui vous a conduit ou amené à postuler?;∎ he is easily led il se laisse facilement influencer;∎ figurative subsequent events led the country into war des événements ultérieurs ont entraîné le pays dans la guerre;∎ this leads me to my second point ceci m'amène à ma seconde remarque;∎ he led the conversation round to money again il a ramené la conversation sur la question de l'argent∎ he has lead a life of debauchery il a mené une vie de débauche;∎ she has led a full and happy life elle a eu une vie heureuse et bien remplie∎ to lead trumps demander ou jouer atout;∎ what was led? qu'est-ce qui a été demandé?∎ to lead a witness poser des questions tendancieuses à un témoin∎ this path leads to the village ce chemin mène au village;∎ where does this door lead to? sur quoi ouvre cette porte?;∎ the stairs lead to the cellar l'escalier mène ou conduit à la cave;∎ take the street that leads away from the station prenez la rue qui part de la gare;∎ that road leads nowhere cette route ne mène nulle part;∎ figurative this is leading nowhere! cela ne rime à rien!∎ to lead by 2 metres avoir 2 mètres d'avance;∎ to lead by 3 points to 1 mener par 3 points à 1;∎ Black Beauty is leading Black Beauty est en tête∎ hearts led cœur (a été) demandé;∎ Joanne to lead c'est à Joanne de jouer∎ if you lead, I'll follow allez-y, je vous suis∎ to lead with sth mettre qch à la une;∎ the 'Times' led with news of the plane hijack le détournement d'avion faisait la une ou était en première page du 'Times'∎ he leads with his right il attaque toujours du droit ou de la droite(g) (in dancing) conduire∎ he led for the prosecution il dirigea l'accusation en tant qu'avocat principal►► Commerce leads and lags termaillage m;Banking & Stock Exchange lead manager (banque f) chef m de file;Marketing lead user utilisateur(trice) m,f piloteemmener;∎ the guards led him away les gardes l'ont emmené;∎ he led her away from the scene of the accident il l'éloigna du lieu de l'accidentramener, reconduire;∎ they led him back to his room ils l'ont ramené ou reconduit à sa chambre;∎ she led the conversation back to the question of money elle a ramené la conversation sur la question de l'argent∎ this path leads back to the beach ce chemin ramène à la plage➲ lead off(in conversation) commencer, débuter; (in debate) entamer les débats; (in game) jouer le(la) premier(ère); (at dance) ouvrir le bal; (in relay race) être le premier relayeur∎ several avenues lead off the square plusieurs avenues partent de la place(person) conduire;∎ they were led off to jail ils ont été conduits ou emmenés en prison➲ lead onaller ou marcher devant;∎ lead on! allez-y!∎ to lead sb on faire marcher qn;∎ you shouldn't lead him on like that vous ne devriez pas le faire marcher comme ça(b) (bring on) faire entrer;∎ lead on the horses! faites entrer les chevaux!(c) (in progression) amener;∎ this leads me on to my second point ceci m'amène à mon deuxième point(result in, have as consequence) mener ou aboutir à;∎ what's all this leading to? sur quoi tout ceci va-t-il déboucher?;∎ the decision led to panic on Wall Street la décision a semé la panique à Wall Street;∎ one thing led to another une chose en amenait une autre;∎ a course leading to a degree un cursus qui débouche sur un diplôme;∎ several factors led to his decision to leave plusieurs facteurs le poussèrent ou l'amenèrent à décider de partir;∎ this led to several of them losing their jobs à cause de cela, plusieurs d'entre eux ont perdu leur emploi;∎ drinking too much can lead to violence l'excès d'alcool peut conduire à la violence;∎ his statement led to a misunderstanding sa déclaration est à l'origine d'un malentendu;∎ this could lead to some confusion ça pourrait provoquer une certaine confusion;∎ her research led to nothing ses recherches n'ont abouti à rien ou n'ont rien donné(a) (path, road) conduire à, mener à;∎ a narrow path led up to the house un étroit sentier menait jusqu'à la maison;∎ those stairs lead up to the attic cet escalier mène au grenier∎ she's leading up to something je me demande où elle veut en venir;∎ what are you leading up to? où voulez-vous en venir?;∎ I was just leading up to that j'allais justement y venir(c) (precede, cause)∎ the events leading up to the war les événements qui devaient déclencher la guerre;∎ in the months leading up to her death pendant les mois qui précédèrent sa mort;∎ Music the chords that lead up to the final movement les accords qui introduisent le dernier mouvementⓘ Lead on, MacDuff Cette phrase ("après toi, MacDuff") est une déformation d'un vers de Macbeth de Shakespeare, dans un passage où Macbeth défie à l'épée son ennemi MacDuff en prononçant les mots lay on, MacDuff ("frappe, MacDuff"). On utilise la version modifiée de cette phrase de façon humoristique lorsque l'on demande à quelqu'un d'ouvrir la marche. -
31 term
1) термин2) мат. член; терм3) элемент; составляющая4) срок5) условие (напр. контракта)6) мат. одночлен•- n-th term of expansion - totally labeled term -
32 Wozniak, Stephen G.
SUBJECT AREA: Electronics and information technology[br]b. 1950 Sunnyvale, California, USA[br]American computer engineer who with Steven Jobs built the first home computer.[br]Bored by school at Sunnyvale, the young Wozniak became interested in computers and at the age of only 13 years he constructed a transistorized calculator that won a prize at the Bay Area Science Fair. After high school, he went to the University of Colorado, but he left the following year to study at the De Anza College in Cupertino, California, finally dropping out of formal education altogether and working as a programmer for a small computer company. In 1971 he made another attempt at studying for a degree in engineering, this time at the University of California at Berkeley, but he again dropped out and went to work for Hewlett-Packard, where he met 16-year-old Steve Jobs. Joining the Homebrew Computer Club, and with Jobs's help, he built a home computer based on the MOS Technology 8-bit, 6502 microprocessor chip. With 4 K of random access memory (RAM) and the first BASIC interpreter written by Wozniak himself, he demonstrated the computer to Hewlett-Packard management, but they showed little interest in taking it up. With Jobs he therefore founded Apple Company, and with assembly in Jobs's home they found an interested buyer in the shape of Paul Terrill, owner of the newly established Byte Shop chain store, who ordered 100 boards at US$500 each. As a result, with the support of a backer, Mike Markkula, Wozniak in 1976 designed a second computer, the Apple II, which had 16 K of RAM and was offered for sale (without a monitor) at $1195. This was an immediate success and sales rose from $775,000 in 1977 to $335 million in 1981 and $983 million in 1983. In the meantime, however, Wozniak was seriously injured in a plane crash in 1980. He recovered slowly from his injuries and in 1982 returned to college to complete his degree course, after which he spent much of his time with his family. Eventually he became increasingly unhappy with the chaotic management at Apple, and he left the company in 1985, subsequently forming his own computer company, Cloud 9.[br]Principal Honours and DistinctionsFirst National Technology Medal (with Jobs) 1985.Further ReadingM.Moritz, 1984, The Little Kingdom. The Private Story of Apple Computers.J.S.Young, 1988, Steve Jobs: The Journey is the Reward: Scott Foreman \& Co.KF -
33 class
class [klα:s]1. nouna. ( = group) classe f• first class honours in history ≈ licence f d'histoire avec mention très bien• to give or take a class faire un coursc. ( = style) classe f3. adjective( = very good) (inf) de grande classe4. compounds* * *[klɑːs], US [klæs] 1.1) Sociology classe f2) ( group of students) classe f; ( lesson) cours m (in de)to take a class — GB assurer un cours; US suivre un cours
3) ( year group) promotion f, classe f4) ( category) classe f, catégorie f5) (colloq) ( elegance) classe f6) Tourism classe fto travel first/second class — voyager en première/deuxième classe
7) GB University ≈ mention fa first-/second-class degree — ≈ licence avec mention très bien/bien
8) Biology, Mathematics classe f2.transitive verb classerto class somebody/something as — assimiler quelqu'un/quelque chose à
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34 Harrison, John
[br]b. 24 March 1693 Foulby, Yorkshire, Englandd. 24 March 1776 London, England[br]English horologist who constructed the first timekeeper of sufficient accuracy to determine longitude at sea and invented the gridiron pendulum for temperature compensation.[br]John Harrison was the son of a carpenter and was brought up to that trade. He was largely self-taught and learned mechanics from a copy of Nicholas Saunderson's lectures that had been lent to him. With the assistance of his younger brother, James, he built a series of unconventional clocks, mainly of wood. He was always concerned to reduce friction, without using oil, and this influenced the design of his "grasshopper" escapement. He also invented the "gridiron" compensation pendulum, which depended on the differential expansion of brass and steel. The excellent performance of his regulator clocks, which incorporated these devices, convinced him that they could also be used in a sea dock to compete for the longitude prize. In 1714 the Government had offered a prize of £20,000 for a method of determining longitude at sea to within half a degree after a voyage to the West Indies. In theory the longitude could be found by carrying an accurate timepiece that would indicate the time at a known longitude, but the requirements of the Act were very exacting. The timepiece would have to have a cumulative error of no more than two minutes after a voyage lasting six weeks.In 1730 Harrison went to London with his proposal for a sea clock, supported by examples of his grasshopper escapement and his gridiron pendulum. His proposal received sufficient encouragement and financial support, from George Graham and others, to enable him to return to Barrow and construct his first sea clock, which he completed five years later. This was a large and complicated machine that was made out of brass but retained the wooden wheelwork and the grasshopper escapement of the regulator clocks. The two balances were interlinked to counteract the rolling of the vessel and were controlled by helical springs operating in tension. It was the first timepiece with a balance to have temperature compensation. The effect of temperature change on the timekeeping of a balance is more pronounced than it is for a pendulum, as two effects are involved: the change in the size of the balance; and the change in the elasticity of the balance spring. Harrison compensated for both effects by using a gridiron arrangement to alter the tension in the springs. This timekeeper performed creditably when it was tested on a voyage to Lisbon, and the Board of Longitude agreed to finance improved models. Harrison's second timekeeper dispensed with the use of wood and had the added refinement of a remontoire, but even before it was tested he had embarked on a third machine. The balance of this machine was controlled by a spiral spring whose effective length was altered by a bimetallic strip to compensate for changes in temperature. In 1753 Harrison commissioned a London watchmaker, John Jefferys, to make a watch for his own personal use, with a similar form of temperature compensation and a modified verge escapement that was intended to compensate for the lack of isochronism of the balance spring. The time-keeping of this watch was surprisingly good and Harrison proceeded to build a larger and more sophisticated version, with a remontoire. This timekeeper was completed in 1759 and its performance was so remarkable that Harrison decided to enter it for the longitude prize in place of his third machine. It was tested on two voyages to the West Indies and on both occasions it met the requirements of the Act, but the Board of Longitude withheld half the prize money until they had proof that the timekeeper could be duplicated. Copies were made by Harrison and by Larcum Kendall, but the Board still continued to prevaricate and Harrison received the full amount of the prize in 1773 only after George III had intervened on his behalf.Although Harrison had shown that it was possible to construct a timepiece of sufficient accuracy to determine longitude at sea, his solution was too complex and costly to be produced in quantity. It had, for example, taken Larcum Kendall two years to produce his copy of Harrison's fourth timekeeper, but Harrison had overcome the psychological barrier and opened the door for others to produce chronometers in quantity at an affordable price. This was achieved before the end of the century by Arnold and Earnshaw, but they used an entirely different design that owed more to Le Roy than it did to Harrison and which only retained Harrison's maintaining power.[br]Principal Honours and DistinctionsRoyal Society Copley Medal 1749.Bibliography1767, The Principles of Mr Harrison's Time-keeper, with Plates of the Same, London. 1767, Remarks on a Pamphlet Lately Published by the Rev. Mr Maskelyne Under theAuthority of the Board of Longitude, London.1775, A Description Concerning Such Mechanisms as Will Afford a Nice or True Mensuration of Time, London.Further ReadingR.T.Gould, 1923, The Marine Chronometer: Its History and Development, London; reprinted 1960, Holland Press.—1978, John Harrison and His Timekeepers, 4th edn, London: National Maritime Museum.H.Quill, 1966, John Harrison, the Man who Found Longitude, London. A.G.Randall, 1989, "The technology of John Harrison's portable timekeepers", Antiquarian Horology 18:145–60, 261–77.J.Betts, 1993, John Harrison London (a good short account of Harrison's work). S.Smiles, 1905, Men of Invention and Industry; London: John Murray, Chapter III. Dictionary of National Biography, Vol. IX, pp. 35–6.DV -
35 master
1. n хозяин, владелец; господинthe master of the house — глава семьи; хозяин дома
to play the master — хозяйничать, распоряжаться
I am not my own master — я не волен поступать, как хочу, я собой не распоряжаюсь
to be master of oneself — владеть собой, держать себя в руках
we will see which of us is master — посмотрим, кто из нас хозяин положения
after hard fighting, the defenders were still masters of the city — после тяжёлых боёв город оставался в руках его защитников
master of the house — хозяин, глава семьи
2. n учитель3. n глава колледжаthe master of the household — хозяин дома, глава семьи
4. n магистрGrand Master — великий магистр, гроссмейстер
5. n мастер, знаток своего дела, специалистhe is master of this subject — он глубоко знает этот предмет, он специалист по этому предмету
6. n квалифицированный рабочий; мастерmaster hand — мастер, специалист
7. n великий, знаменитый художник, мастерmaster gunner — старший инструктор по стрельбе; мастер стрельбы
8. n в названиях должностей9. n молодой барин, барчук; мастер, господинcomplete master of fence — настоящий мастер фехтования, искусный фехтовальщик
10. n шотл. старший сын титулованного лицаmaster index — главный индекс; старший индекс
11. n Христос12. n капитан, шкиперmaster mariner — капитан, шкипер
13. n ист. штурман14. n спец. модель; оригинал, образецmaster drawing — оригинал; эталонный чертеж
15. n первый оригиналfilm master — оригинал микрофильма; оригинал на плёнке
16. n руководство17. a главный, старшийmaster bedroom — спальня хозяев, господская спальня
18. a основной; сводный19. a контрольный20. v справляться, одолевать, подчинять себеto master the enemy — наносить поражение противнику, одерживать победу над противником
21. v преодолевать22. v овладевать23. v руководить, управлять24. v русск. как компонент сложных слов, соответствует компоненту -мачтовикСинонимический ряд:1. dominant (adj.) ascendant; dominant; outweighing; overbalancing; overbearing; overweighing; paramount; predominant; predominate; preponderant; prevalent; regnant; sovereign2. major (adj.) chief; excellent; leading; main; major; principal; supreme3. proficient (adj.) accomplished; adept; crack; crackerjack; deft; expert; masterful; masterly; practiced; proficient; skilled; skillful4. expert (noun) adept; artist; artiste; authority; champion; connoisseur; doyen; expert; genius; maestro; master-hand; maven; passed master; past master; pro; professional; proficient; sage; scholar; swell; virtuoso; whiz; wiz; wizard5. leader (noun) boss; captain; chief; chieftain; cock; commander; director; dominator; head; headman; hierarch; honcho; leader; lord; overlord; ruler; superintendent; supervisor6. lover (noun) boyfriend; fancy man; lover; man; paramour7. original (noun) archetype; original; prototype8. owner (noun) holder; owner; possessor; proprietor9. supreme being (noun) Christ; god; messiah; supreme being10. teacher (noun) educator; instructor; mentor; preceptor; teacher11. victor (noun) conqueror; defeater; subduer; subjugator; vanquisher; victor; winner12. conquer (verb) conquer; defeat; humble; overpower; rule; subdue; vanquish13. domesticate (verb) domesticate; domesticize; domiciliate; gentle; tame14. learn (verb) comprehend; control; dominate; gain mastery in; get; learn; pick up; study; understand15. overcome (verb) best; down; hurdle; lick; overcome; prevail; surmount; throw; triumph; worstАнтонимический ряд:inept; novice; resist; student; subject -
36 Scheutz, George
SUBJECT AREA: Electronics and information technology[br]b. 23 September 1785 Jonkoping, Swedend. 27 May 1873 Stockholm, Sweden[br]Swedish lawyer, journalist and self-taught engineer who, with his son Edvard Raphael Scheutz (b. 13 September 1821 Stockholm, Sweden; d. 28 January 1881 Stockholm, Sweden) constructed a version of the Babbage Difference Engine.[br]After early education at the Jonkoping elementary school and the Weixo Gymnasium, George Scheutz entered the University of Lund, gaining a degree in law in 1805. Following five years' legal work, he moved to Stockholm in 1811 to work at the Supreme Court and, in 1814, as a military auditor. In 1816, he resigned, bought a printing business and became editor of a succession of industrial and technical journals, during which time he made inventions relating to the press. It was in 1830 that he learned from the Edinburgh Review of Babbage's ideas for a difference engine and started to make one from wood, pasteboard and wire. In 1837 his 15-yearold student son, Edvard Raphael Scheutz, offered to make it in metal, and by 1840 they had a working machine with two five-digit registers, which they increased the following year and then added a printer. Obtaining a government grant in 1851, by 1853 they had a fully working machine, now known as Swedish Difference Engine No. 1, which with an experienced operator could generate 120 lines of tables per hour and was used to calculate the logarithms of the numbers 1 to 10,000 in under eighty hours. This was exhibited in London and then at the Paris Great Exhibition, where it won the Gold Medal. It was subsequently sold to the Dudley Observatory in Albany, New York, for US$5,000 and is now in a Chicago museum.In England, the British Registrar-General, wishing to produce new tables for insurance companies, and supported by the Astronomer Royal, arranged for government finance for construction of a second machine (Swedish Difference Engine No. 2). Comprising over 1,000 working parts and weighing 1,000 lb (450 kg), this machine was used to calculate over 600 tables. It is now in the Science Museum.[br]Principal Honours and DistinctionsMember of the Swedish Academy of Sciences, Paris Exhibition Medal of Honour (jointly with Edvard) 1856. Annual pension of 1,200 marks per annum awarded by King Carl XV 1860.Bibliography1825, "Kranpunpar. George Scheutz's patent of 14 Nov 1825", Journal for Manufacturer och Hushallning 8.1855, with E.S.Scheutz, Machine à calcul qui présente les résultats en les imprimantellemême, Stockholm.Further ReadingR.C.Archibald, 1947, "P.G.Scheutz, publicist, author, scientific mechanic and Edvard Scheutz, engineer. Biography and Bibliography", MTAC 238.U.C.Merzbach, 1977, "George Scheutz and the first printing calculator", SmithsonianStudies in History and Technology 36:73.M.Lindgren, 1990, Glory and Failure (the Difference Engines of Johan Muller, Charles Babbage and George \& Edvard Scheutz), Cambridge, Mass.: MIT Press.KF
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