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1 mechanics
1. noun singular1) the science of the action of forces on objects:عِلْم الميكانيكاHe is studying mechanics.
2) the art of building machines:مَعْرِفَه آليَّهHe applied his knowledge of mechanics to designing a new wheelchair.
2. noun pluralthe ways in which something works or is applied:آلِيَّة, طُرُق آليَّهthe mechanics of the legal system.
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2 μηχανικός
2 c. gen. rei,τῶν ἐπιτηδείων -ώτερος X.Lac.2.7
.II of or for machines, mechanical,ὄργανα μ. Arist.Pol. 1336a11
;αἱ.. κινήσεις αἱ μ. Id.Mech. 848a14
; μ. ἀποδείξεις in mechanics, Id.APo. 76a24: μηχανικά, τά, the science of mechanics, title of work ascribed to Aristotle: ἡ -κή (sc. τέχνη) Arist.Metaph. 1078a16, AP9.807;μ. ποίημα Sotad.15.6
;μ. ἔργα PFlor. 152.4
(iii A. D.): Subst. μηχανικός, ὁ, engineer, Plu.Per.27, Sammelb. 310. Adv. -κῶς Callix.2
.Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > μηχανικός
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3 Mechanik
f; -, -en, meist Sg.1. PHYS. mechanics Pl. (als Fach V. im Sg.)2. TECH. (Mechanismus) mechanism* * *die Mechanikmechanics* * *Me|cha|nik [me'çaːnɪk]f -, -en2) (rare = Mechanismus) mechanism* * *die1) (the science of the action of forces on objects: He is studying mechanics.) mechanics2) (the art of building machines: He applied his knowledge of mechanics to designing a new wheelchair.) mechanics* * *Me·cha·nik<-, -en>[meˈça:nɪk]f▪ die \Mechanik mechanics + sing vb▪ die \Mechanik mechanics + sing vb* * *die; Mechanik1) (Physik) mechanics sing., no art.2) (Mechanismus) mechanism3) (Funktion) mechanics sing. or pl* * ** * *die; Mechanik1) (Physik) mechanics sing., no art.2) (Mechanismus) mechanism3) (Funktion) mechanics sing. or pl* * *-en f.mechanics n. -
4 Banu Musa ibn Shakir
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]fl. c.850[br]Arab astronomers and engineers.[br]The Banu were the three sons of Musa ibn Shakir. His origins were unpromising, for he was a robber, but the caliph al-Ma'mun, a great patron of science and learning, took the sons into his academy and had them educated. The eldest and most prominent, Muhammed, took up the study of geometry, logic and astronomy, while another, al- Hasan, also studied geometry. The third, Ahmad, turned to mechanics. Together, the Banu established a group for the translation of texts from antiquity, especially Greece, on science and mechanics. They were responsible for compiling the Kitab al-Hiyal (Book of Ingenious Devices), the first of two major works on mechanics that appeared in the medieval Islamic world. The authors drew freely from earlier Greek writers, particularly Hero and Philon. The work is a technical manual for making devices such as lamps, pipes in spring wells and drinking vessels, most depending on differences in air pressure generated by the movement of liquids. These principles were applied to make a self-filling oil lamp. The work also demonstrated the lifting of heavy weights by means of pulleys. In another work, the Qarastun (Book of the Balance), the Banu showed how different weights could be balanced by varying the distance from the fulcrum.[br]Further ReadingDictionary of Scientific Biography.LRD -
5 Cayley, Sir George
SUBJECT AREA: Aerospace[br]b. 27 December 1773 Scarborough, Englandd. 15 December 1857 Brompton Hall, Yorkshire, England[br]English pioneer who laid down the basic principles of the aeroplane in 1799 and built a manned glider in 1853.[br]Cayley was born into a well-to-do Yorkshire family living at Brompton Hall. He was encouraged to study mathematics, navigation and mechanics, particularly by his mother. In 1792 he succeeded to the baronetcy and took over the daunting task of revitalizing the run-down family estate.The first aeronautical device made by Cayley was a copy of the toy helicopter invented by the Frenchmen Launoy and Bienvenu in 1784. Cayley's version, made in 1796, convinced him that a machine could "rise in the air by mechanical means", as he later wrote. He studied the aerodynamics of flight and broke away from the unsuccessful ornithopters of his predecessors. In 1799 he scratched two sketches on a silver disc: one side of the disc showed the aerodynamic force on a wing resolved into lift and drag, and on the other side he illustrated his idea for a fixed-wing aeroplane; this disc is preserved in the Science Museum in London. In 1804 he tested a small wing on the end of a whirling arm to measure its lifting power. This led to the world's first model glider, which consisted of a simple kite (the wing) mounted on a pole with an adjustable cruciform tail. A full-size glider followed in 1809 and this flew successfully unmanned. By 1809 Cayley had also investigated the lifting properties of cambered wings and produced a low-drag aerofoil section. His aim was to produce a powered aeroplane, but no suitable engines were available. Steam-engines were too heavy, but he experimented with a gunpowder motor and invented the hot-air engine in 1807. He published details of some of his aeronautical researches in 1809–10 and in 1816 he wrote a paper on airships. Then for a period of some twenty-five years he was so busy with other activities that he largely neglected his aeronautical researches. It was not until 1843, at the age of 70, that he really had time to pursue his quest for flight. The Mechanics' Magazine of 8 April 1843 published drawings of "Sir George Cayley's Aerial Carriage", which consisted of a helicopter design with four circular lifting rotors—which could be adjusted to become wings—and two pusher propellers. In 1849 he built a full-size triplane glider which lifted a boy off the ground for a brief hop. Then in 1852 he proposed a monoplane glider which could be launched from a balloon. Late in 1853 Cayley built his "new flyer", another monoplane glider, which carried his coachman as a reluctant passenger across a dale at Brompton, Cayley became involved in public affairs and was MP for Scarborough in 1832. He also took a leading part in local scientific activities and was co-founder of the British Association for the Advancement of Science in 1831 and of the Regent Street Polytechnic Institution in 1838.[br]BibliographyCayley wrote a number of articles and papers, the most significant being "On aerial navigation", Nicholson's Journal of Natural Philosophy (November 1809—March 1810) (published in three numbers); and two further papers with the same title in Philosophical Magazine (1816 and 1817) (both describe semi-rigid airships).Further ReadingL.Pritchard, 1961, Sir George Cayley, London (the standard work on the life of Cayley).C.H.Gibbs-Smith, 1962, Sir George Cayley's Aeronautics 1796–1855, London (covers his aeronautical achievements in more detail).—1974, "Sir George Cayley, father of aerial navigation (1773–1857)", Aeronautical Journal (Royal Aeronautical Society) (April) (an updating paper).JDS -
6 Bewegungslehre
f1. SPORT, MED. kinesiology2. PHYS., MATH. mechanics, synamics, kinematics* * *(the science that deals with movement and force.) dynamics* * *1. SPORT, MED kinesiology2. PHYS, MATH mechanics, synamics, kinematics -
7 Daguerre, Louis Jacques Mandé
SUBJECT AREA: Photography, film and optics[br]b. 18 November 1787 Carmeilles-en-Parisis, Franced. 10 July 1851 Petit-Bry-sur-Marne, France[br]French inventor of the first practicable photographic process.[br]The son of a minor official in a magistrate's court, Daguerre showed an early aptitude for drawing. He was first apprenticed to an architect, but in 1804 he moved to Paris to learn the art of stage design. He was particularly interested in perspective and lighting, and later showed great ingenuity in lighting stage sets. Fascinated by a popular form of entertainment of the period, the panorama, he went on to create a variant of it called the diorama. It is assumed that he used a camera obscura for perspective drawings and, by purchasing it from the optician Chevalier, he made contact with Joseph Nicéphore Niepce. In 1829 Niepce and Daguerre entered into a formal partnership to perfect Niepce's heliographic process, but the partnership was dissolved when Niepce died in 1833, when only limited progress had been made. Daguerre continued experimenting alone, however, using iodine and silver plates; by 1837 he had discovered that images formed in the camera obscura could be developed by mercury vapour and fixed with a hot salt solution. After unsuccessfully attempting to sell his process, Daguerre approached F.J.D. Arago, of the Académie des Sciences, who announced the discovery in 1839. Details of Daguerre's work were not published until August of that year when the process was presented free to the world, except England. With considerable business acumen, Daguerre had quietly patented the process through an agent, Miles Berry, in London a few days earlier. He also granted a monopoly to make and sell his camera to a Monsieur Giroux, a stationer by trade who happened to be a relation of Daguerre's wife. The daguerreotype process caused a sensation when announced. Daguerre was granted a pension by a grateful government and honours were showered upon him all over the world. It was a direct positive process on silvered copper plates and, in fact, proved to be a technological dead end. The future was to lie with negative-positive photography devised by Daguerre's British contemporary, W.H.F. Talbot, although Daguerre's was the first practicable photographic process to be announced. It captured the public's imagination and in an improved form was to dominate professional photographic practice for more than a decade.[br]Principal Honours and DistinctionsOfficier de la Légion d'honneur 1839. Honorary FRS 1839. Honorary Fellow of the National Academy of Design, New York, 1839. Honorary Fellow of the Vienna Academy 1843. Pour le Mérite, bestowed by Frederick William IV of Prussia, 1843.Bibliography14 August 1839, British patent no. 8,194 (daguerrotype photographic process).The announcement and details of Daguerre's invention were published in both serious and popular English journals. See, for example, 1839 publications of Athenaeum, Literary Gazette, Magazine of Science and Mechanics Magazine.Further ReadingH.Gernsheim and A.Gernsheim, 1956, L.J.M. Daguerre (the standard account of Daguerre's work).—1969, The History of Photography, rev. edn, London (a very full account).J.M.Eder, 1945, History of Photography, trans. E. Epstean, New York (a very full account).JWBiographical history of technology > Daguerre, Louis Jacques Mandé
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8 Dyer, Joseph Chessborough
SUBJECT AREA: Textiles[br]b. 15 November 1780 Stonnington Point, Connecticut, USAd. 2 May 1871 Manchester, England[br]American inventor of a popular type of roving frame for cotton manufacture.[br]As a youth, Dyer constructed an unsinkable life-boat but did not immediately pursue his mechanical bent, for at 16 he entered the counting-house of a French refugee named Nancrède and succeeded to part of the business. He first went to England in 1801 and finally settled in 1811 when he married Ellen Jones (d. 1842) of Gower Street, London. Dyer was already linked with American inventors and brought to England Perkins's plan for steel engraving in 1809, shearing and nail-making machines in 1811, and also received plans and specifications for Fulton's steamboats. He seems to have acted as a sort of British patent agent for American inventors, and in 1811 took out a patent for carding engines and a card clothing machine. In 1813 there was a patent for spinning long-fibred substances such as hemp, flax or grasses, and in 1825 there was a further patent for card making machinery. Joshua Field, on his tour through Britain in 1821, saw a wire drawing machine and a leather splitting machine at Dyer's works as well as the card-making machines. At first Dyer lived in Camden Town, London, but he had a card clothing business in Birmingham. He moved to Manchester c.1816, where he developed an extensive engineering works under the name "Joseph C.Dyer, patent card manufacturers, 8 Stanley Street, Dale Street". In 1832 he founded another works at Gamaches, Somme, France, but this enterprise was closed in 1848 with heavy losses through the mismanagement of an agent. In 1825 Dyer improved on Danforth's roving frame and started to manufacture it. While it was still a comparatively crude machine when com-pared with later versions, it had the merit of turning out a large quantity of work and was very popular, realizing a large sum of money. He patented the machine that year and must have continued his interest in these machines as further patents followed in 1830 and 1835. In 1821 Dyer had been involved in the foundation of the Manchester Guardian (now The Guardian) and he was linked with the construction of the Liverpool \& Manchester Railway. He was not so successful with the ill-fated Bank of Manchester, of which he was a director and in which he lost £98,000. Dyer played an active role in the community and presented many papers to the Manchester Literary and Philosophical Society. He helped to establish the Royal Institution in London and the Mechanics Institution in Manchester. In 1830 he was a member of the delegation to Paris to take contributions from the town of Manchester for the relief of those wounded in the July revolution and to congratulate Louis-Philippe on his accession. He called for the reform of Parliament and helped to form the Anti-Corn Law League. He hated slavery and wrote several articles on the subject, both prior to and during the American Civil War.[br]Bibliography1811, British patent no. 3,498 (carding engines and card clothing machine). 1813, British patent no. 3,743 (spinning long-fibred substances).1825, British patent no. 5,309 (card making machinery).1825, British patent no. 5,217 (roving frame). 1830, British patent no. 5,909 (roving frame).1835, British patent no. 6,863 (roving frame).Further ReadingDictionary of National Biography.J.W.Hall, 1932–3, "Joshua Field's diary of a tour in 1821 through the Midlands", Transactions of the Newcomen Society 6.Evan Leigh, 1875, The Science of Modern Cotton Spinning, Vol. II, Manchester (provides an account of Dyer's roving frame).D.J.Jeremy, 1981, Transatlantic Industrial Revolution: The Diffusion of TextileTechnologies Between Britain and America, 1790–1830s, Oxford (describes Dyer's links with America).See also: Arnold, AzaRLHBiographical history of technology > Dyer, Joseph Chessborough
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9 शिल्पविद्या
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10 mécanique
c black mécanique [mekanik]1. adjectivemechanical ; [jouet] clockwork• avoir des ennuis mécaniques (sur voiture) to have engine trouble ; (sur avion) to have mechanical problems2. feminine nouna. ( = activité, discipline) mechanical engineering ; ( = système) mechanics sgc black b. ( = mécanisme) c'est une belle mécanique this car is a fine piece of engineering━━━━━━━━━━━━━━━━━✎ Le mot anglais s'écrit avec un h.* * *mekanik
1.
1) ( manuel) [hachoir, tondeuse] hand (épith); [jouet] clockwork (épith)2) ( doté d'une machine) mechanical3) ( fait à la machine) machine (épith)4) ( de machine) [panne] mechanical5) Physique mechanical6) ( irréfléchi) [geste] mechanical; [rire] empty
2.
1) ( discipline) mechanics (+ v sg)2) ( fonctionnement) mechanics (pl)3) (colloq) (machine, véhicule) machine* * *mekanik1. adj2. nf1) (= science) mechanics sg2) (= technologie) engineering3) (= mécanisme) (= ensemble des pièces) mechanism* * *A adj1 ( manuel) [hachoir, tondeuse] hand ( épith); [machine à écrire] manual; [montre, petite voiture] wind-up ( épith); [jouet, train] clockwork ( épith), wind-up ( épith);2 Mécan ( doté d'une machine) mechanical; appareil/excavatrice mécanique mechanical equipment/excavator;3 Agric, Ind ( fait à la machine) machine ( épith); fil/tissage/séchage mécanique machine yarn/weaving/drying; traite/tonte mécanique machine milking/shearing;4 Mécan ( de machine) [ennui, panne] mechanical; défaillance mécanique mechanical failure; se déplacer de façon mécanique to move mechanically; pièce mécanique machine part; construction mécanique mechanical engineering; industrie mécanique engineering industry;5 Phys mechanical; lois mécaniques laws of mechanics;6 ( non chimique) méthodes mécaniques de contraception barrier methods of contraception;B nf1 Mécan ( science) mechanics (+ v sg); un génie de la mécanique a mechanical genius; un terme de mécanique a mechanical term; avoir le sens de la mécanique to be mechanically-minded; une merveille de mécanique a marvel of engineering;2 Phys mechanics (+ v sg);3 ( fonctionnement) mechanics (pl); la mécanique d'une campagne électorale the mechanics of running a campaign; la mécanique de la gestion the mechanics of management;4 ○( machine) machine; c'est une belle mécanique ta moto your motorbike is a fine machine.mécanique des fluides fluid mechanics (+ v sg); mécanique ondulatoire wave mechanics (+ v sg); mécanique quantique quantum mechanics (+ v sg); mécanique des sols soil mechanics (+ v sg).[mekanik] adjectif1. SCIENCES [loi] mechanical2. [non manuel - tapis, tissage] machine-made ; [ - abattage, remblayage] mechanical, machine (modificateur)3. [non électrique, non électronique - commande] mechanical ; [ - jouet] clockwork ; [ - montre] wind-up4. [du moteur] engine (modificateur)nous avons eu un incident mécanique ou des ennuis mécaniques en venant we had engine trouble on the way here5. [machinal] mechanical————————[mekanik] nom fémininmécanique quantique/relativiste quantum/relativistic mechanics3. [machine] piece of machinery[dispositif] mechanismmarcher ou tourner comme une mécanique bien huilée to work like a well-oiled machineune belle mécanique [moto, voiture] a fine piece of engineering -
11 Technik
f; -, -en1. nur Sg. (Technologie) technology; angewandte: meist engineering, applied technology; Studienfach: engineering; die moderne Technik modern ( oder today’s) technology; hoch entwickelte Technik advanced ( oder high) technology; Technik ist angewandte Wissenschaft technology is science in action ( oder at work); nach den anerkannten Regeln der Technik in accordance with the (well-known) laws of engineering; von Technik verstehe ich gar nichts I don’t know the first thing about technical matters, I’m hopeless with anything technical ( oder when it comes to technical things); Stand 22. (Methode, Verfahren) technique (auch KUNST, SPORT etc.), method, procedure, routine; hoch entwickelte oder verfeinerte Techniken advanced techniques3. nur Sg.; SPORT, KUNST (Können) technique, technical ability, mastery; er verfügt über eine hervorragende Technik he has superb technique ( oder prodigious technical ability)4. nur Sg. (technische Ausrüstung) technology, technical resources Pl. ( oder equipment); eine Firma mit modernster Technik a company using state-of-the-art technology5. nur Sg. (technische Beschaffenheit einer Maschine etc.) mechanics Pl., operation6. nur Sg. (Abteilung) technical department, engineering side umg.; jemanden von der Technik rufen send for one of the technical people* * *die Techniktechnology; technics; science; technique* * *Tẹch|nik ['tɛçnɪk]f -, -en1) (no pl = Technologie) technology; (esp als Studienfach) engineeringdas Zeitalter der Technik — the technological age, the age of technology
2) (= Arbeitsweise, Verfahren) techniquejdn mit der Technik von etw vertraut machen — to familiarize sb with the techniques or skills of sth
die Technik des Dramas/der Musik — dramatic/musical techniques
3) (no pl = Funktionsweise und Aufbau) (von Auto, Motor etc) mechanics pl4) (SCH = Schulfach) (= Haushaltslehre) home economics; (= Werken) technical studies5) (inf = technische Abteilung) technical department, back-room boys pl (inf)6) (Aus inf = Technische Hochschule) institute of technology* * *die1) (the ways in which something works or is applied: the mechanics of the legal system.) mechanic2) (the way in which a (usually skilled) process is, or should be, carried out: They admired the pianist's faultless technique.) technique* * *Tech·nik<-, -en>[ˈteçnɪk]fauf dem neuesten Stand der \Technik state-of-the-art technologymit modernster \Technik ausgestattet equipped with the most modern technology4. (besondere Methode) techniquejeder Hochspringer hat seine eigene \Technik every high jumper has his own technique* * *die; Technik, Techniken1) o. Pl. technology; (Studienfach) engineering no art.2) o. Pl. (Ausrüstung) equipment; machinery3) (Arbeitsweise, Verfahren) technique4) o. Pl. (eines Gerätes) workings pl* * *1. nur sg (Technologie) technology; angewandte: meist engineering, applied technology; Studienfach: engineering;die moderne Technik modern ( oder today’s) technology;hoch entwickelte Technik advanced ( oder high) technology;Technik ist angewandte Wissenschaft technology is science in action ( oder at work);nach den anerkannten Regeln der Technik in accordance with the (well-known) laws of engineering;von Technik verstehe ich gar nichts I don’t know the first thing about technical matters, I’m hopeless with anything technical ( oder when it comes to technical things); → Stand 2verfeinerte Techniken advanced techniqueser verfügt über eine hervorragende Technik he has superb technique ( oder prodigious technical ability)eine Firma mit modernster Technik a company using state-of-the-art technology5. nur sg (technische Beschaffenheit einer Maschine etc) mechanics pl, operation6. nur sg (Abteilung) technical department, engineering side umg;jemanden von der Technik rufen send for one of the technical people* * *die; Technik, Techniken1) o. Pl. technology; (Studienfach) engineering no art.2) o. Pl. (Ausrüstung) equipment; machinery3) (Arbeitsweise, Verfahren) technique4) o. Pl. (eines Gerätes) workings pl* * *-en f.engineering n.technics n.technique n.technology n. -
12 technik
f; -, -en1. nur Sg. (Technologie) technology; angewandte: meist engineering, applied technology; Studienfach: engineering; die moderne Technik modern ( oder today’s) technology; hoch entwickelte Technik advanced ( oder high) technology; Technik ist angewandte Wissenschaft technology is science in action ( oder at work); nach den anerkannten Regeln der Technik in accordance with the (well-known) laws of engineering; von Technik verstehe ich gar nichts I don’t know the first thing about technical matters, I’m hopeless with anything technical ( oder when it comes to technical things); Stand 22. (Methode, Verfahren) technique (auch KUNST, SPORT etc.), method, procedure, routine; hoch entwickelte oder verfeinerte Techniken advanced techniques3. nur Sg.; SPORT, KUNST (Können) technique, technical ability, mastery; er verfügt über eine hervorragende Technik he has superb technique ( oder prodigious technical ability)4. nur Sg. (technische Ausrüstung) technology, technical resources Pl. ( oder equipment); eine Firma mit modernster Technik a company using state-of-the-art technology5. nur Sg. (technische Beschaffenheit einer Maschine etc.) mechanics Pl., operation6. nur Sg. (Abteilung) technical department, engineering side umg.; jemanden von der Technik rufen send for one of the technical people* * *die Techniktechnology; technics; science; technique* * *Tẹch|nik ['tɛçnɪk]f -, -en1) (no pl = Technologie) technology; (esp als Studienfach) engineeringdas Zeitalter der Technik — the technological age, the age of technology
2) (= Arbeitsweise, Verfahren) techniquejdn mit der Technik von etw vertraut machen — to familiarize sb with the techniques or skills of sth
die Technik des Dramas/der Musik — dramatic/musical techniques
3) (no pl = Funktionsweise und Aufbau) (von Auto, Motor etc) mechanics pl4) (SCH = Schulfach) (= Haushaltslehre) home economics; (= Werken) technical studies5) (inf = technische Abteilung) technical department, back-room boys pl (inf)6) (Aus inf = Technische Hochschule) institute of technology* * *die1) (the ways in which something works or is applied: the mechanics of the legal system.) mechanic2) (the way in which a (usually skilled) process is, or should be, carried out: They admired the pianist's faultless technique.) technique* * *Tech·nik<-, -en>[ˈteçnɪk]fauf dem neuesten Stand der \Technik state-of-the-art technologymit modernster \Technik ausgestattet equipped with the most modern technology4. (besondere Methode) techniquejeder Hochspringer hat seine eigene \Technik every high jumper has his own technique* * *die; Technik, Techniken1) o. Pl. technology; (Studienfach) engineering no art.2) o. Pl. (Ausrüstung) equipment; machinery3) (Arbeitsweise, Verfahren) technique4) o. Pl. (eines Gerätes) workings pl* * *Schweißtechnik welding engineering ( oder technology);Sprengtechnik explosives technology;Verfahrenstechnik process engineering;Wurftechnik SPORT throwing technique* * *die; Technik, Techniken1) o. Pl. technology; (Studienfach) engineering no art.2) o. Pl. (Ausrüstung) equipment; machinery3) (Arbeitsweise, Verfahren) technique4) o. Pl. (eines Gerätes) workings pl* * *-en f.engineering n.technics n.technique n.technology n. -
13 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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14 Nature
To Newtonians, each question had its singular answer, one that would remain the same no matter who asked it, or why. But now, the uncertainty that undercuts every measurement of some fact in the real world compels the observer to choose which question to ask, which aspect of a phenomenon to study.The necessity of choice became overwhelmingly apparent when Heisenberg elevated uncertainty to a principle in quantum mechanics in 1927, having recognized that on the subatomic level the observer had to emphasize only one of a pair of properties to study at any one time. In one of the prominent interpretations of quantum mechanics, the idea took on a larger meaning: that in choosing what to study, the scientist in effect creates the object of his inquiry.... The impossibility of constructing a complete, accurate quantitative description of a complex system forces observers to pick which aspects of the system they most wish to understand....What one studies from among this wealth of choice depends on what one wants to know; the questions create-or at least determine-the range of possible answers. No such answer can be completely "true": instead of saying "This is what nature is like," they can claim only, "This is what nature seems like from here"-a vastly diminished claim from that of Newton. The critical issue raised by such subjectivity is how to decide what value each partial answer has, what connection it actually makes between the real world and our understanding of it. The object of study, the focus of much of modern science, has therefore shifted inward, to examine not nature itself but rather to study the abstract representations of nature, the choices made of what to leave in and what to drop out of any given study. (Levenson, 1995, pp. 228-229)Historical dictionary of quotations in cognitive science > Nature
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15 горная механика
горная механика
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
rock mechanics
The theoretical and applied science of the physical behavior of rocks, representing a "branch of mechanics concerned with the response of rock to the force fields of its physical environment". (Source: BJGEO)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-английский словарь нормативно-технической терминологии > горная механика
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16 connaître
connaître° [kɔnεtʀ]➭ TABLE 571. transitive verba. to know• connais-tu un bon restaurant ? do you know of a good restaurant?• connaître qn de vue/nom/réputation to know sb by sight/name/reputation• il l'a connu à l'université he met or knew him at university• vous connaissez la dernière (nouvelle) ? have you heard the latest (news)?b. [+ langue, science, auteur] to know• connaître les oiseaux/les plantes to know about birds/plants• il n'y connaît rien he doesn't know anything or a thing about itc. ( = éprouver) [+ faim, privations] to know ; [+ humiliations] to experienced. ( = avoir) [+ succès] to enjoy• cette pièce l'a fait connaître en Angleterre this play brought him to the attention of the English public2. reflexive verba.se connaître (soi-même) to know o.s.b. ( = se rencontrer) to meet• quand il s'agit d'embêter les autres, il s'y connaît ! (inf) when it comes to annoying people he's an expert! (inf)* * *kɔnɛtʀ
1.
1) to know [fait, nom, événement]il ne tient jamais ses promesses, c'est (bien) connu — it is common knowledge that he never keeps his promises
2) to know, to be acquainted with [sujet, méthode, auteur]la mécanique, je ne connais que ça or ça me connaît! — I know quite a bit about mechanics
3) to know [faim]; to experience [crise]; to enjoy [gloire]; to have [difficultés]les problèmes d'argent, ça me connaît! — (colloq) I could tell you a thing or two (colloq) about money problems!
connaître des hauts et des bas — to have one's/its ups and downs
4) to know [personne, acteur]c'est bien mal la connaître — they/you're misjudging her
5) (dated) ( coucher avec) to know (dated), to have a sexual relationship with6) Droitconnaître de — to have jurisdiction over [affaire, cause]
avoir à connaître de — to judge ou hear [cas]
2.
se connaître verbe pronominal1) ( soi-même) to know oneself‘connais-toi toi-même’ — ‘know thyself’
il ne se connaissait plus de joie — fml he was beside himself with joy
2) ( l'un l'autre) to know each other3) ( être compétent)c'est le carburateur qui est bouché ou je ne m'y connais pas — (colloq) if I know anything about it, it's the carburettor GB ou carburetor US that's blocked
••on connaît la chanson or musique! — we've heard it all before!
* * *kɔnɛtʀ vt1) [technique, matière] to know2) [ville, personne] to knowJe ne connais pas du tout cette région. — I don't know this area at all.
Je le connais de vue. — I know him by sight.
faire connaître qch [région, culture] — to introduce people to sth
se faire connaître en faisant qch; Le groupe s'est fait connaître en gagnant le concours Eurovision. — the group found fame when it won the Eurovision song contest.
3) [personne] (= éprouver) [sensation, sentiment] to experience, (= faire l'expérience de) [difficultés, misère, guerre] to experienceIl a fini dans la misère après avoir connu le faste et la gloire. — He ended up destitute, after having known fame and riches.
4) [film, chanson, économie, secteur] (= avoir, rencontrer) to have, to enjoyL'industrie du tourisme connaît une période exceptionnelle. — The tourist industry is having a very good period.
Ce film connaît actuellement un grand succès. — This film is currently enjoying a huge success.
* * *connaître verb table: connaîtreA vtr1 ( avoir connaissance de) to know [fait, nom, événement, résultat]; ne pas connaître sa force not to know one's own strength; vous connaissez la suite you know the rest; je connais les raisons de ta colère I know why you're angry; il nous a fait connaître son avis/ses intentions he made his opinion/his intentions known (to us); tu connais l'histoire de Toto qui… do you know the one about Toto who…; il ne tient jamais ses promesses, c'est (bien) connu it is common knowledge that he never keeps his promises; tes promesses, on connaît! we know all about your promises!; la rue de la Glacière? connais pas○! rue de la Glacière? never heard of it!; je lui connais de grands talents I know that he/she is very talented; je ne leur connais aucun vice I don't know them to have any vices; on te connaît plusieurs amants we know you to have several lovers; ne connaître ni le pourquoi ni le comment de qch not to know the whys and the wherefores of sth; leur vie privée est connue de tous everybody knows about their private life; tu connais la nouvelle? have you heard the news?; tu ne connais pas ta chance you don't know how lucky you are; j'en connais long sur ton passé I know a lot about your past; ne connaître que son plaisir/devoir to think of nothing but one's pleasure/duty; ⇒ Dieu, loup;2 ( pour avoir étudié) to know, to be acquainted with [sujet, méthode, auteur]; la mécanique, je ne connais que ça or ça me connaît! I know quite a bit about mechanics; elle connaît tout du solfège she knows all about music theory; c'est lui qui m'a fait connaître la musique cajun it was he who introduced me to Cajun music; connaître un poème/une partition musicale par cœur to know a poem/a score (off) by heart; en connaître un rayon○ en histoire/théâtre to know one's stuff○ when it comes to history/the theatreGB;3 ( faire l'expérience de) to know, to experience [faim, froid, pauvreté, amour]; to experience [crise, défaite, échec]; to enjoy [gloire, succès]; to have [difficultés, problèmes]; il connaît l'humiliation de la défaite he knows ou has experienced the humiliation of defeat; ils ont connu la défaite they were defeated; il a connu la prison he's been to prison before; il ne connaît pas la pitié/la honte he knows no pity/shame; c'est un homme qui connaît la vie he's a man who knows what life is about; connaître les femmes/hommes to know something about women/men; il a connu son heure de gloire he has had his hour of glory; les problèmes d'argent, ça me connaît○! I could tell you a thing or two○ about money problems!; connaître des hauts et des bas to have one's/its ups and downs; connaître une fin tragique to come to a tragic end; connaître une situation difficile to be in a difficult situation; connaître une forte croissance to show a rapid growth; le club sportif connaît un nouvel essor the sports club is having a new lease of GB ou on US life; ils auraient pu connaître un meilleur sort they could have had a better fate;4 ( de réputation) to know [personne, acteur]; elle est très connue she's (very) well-known; connaître qn de nom/vue to know sb by name/sight; je le connais de réputation mais je ne l'ai jamais rencontré I know ou I've heard of him but I've never met him; une œuvre connue/peu connue a well-known/little-known work (de by); être d'abord connu comme violoniste to be chiefly known as a violinist;5 ( personnellement) to know [ami, parent, relation]; je le connais depuis longtemps I've known him for a long time; vous ne me connaissez pas you don't know me; j'ai appris à connaître mon père en grandissant I got to know my father as I grew up; j'aimerais bien la connaître I'd really like to get to know her; c'est bien mal la connaître que de croire que… they/you're misjudging her if they/you think that…; je le connais trop bien I know him only too well; faire connaître qn à qn to introduce sb to sb; mes parents? je les connais, ils seront ravis! my parents? if I know them, they'll be delighted; Bernadette? je ne connais qu'elle! Bernadette? I know her very well!; il ne me connaît plus depuis qu'il est passé officier he ignores me now that he's an officer;6 †( coucher avec) to know†, to have a sexual relationship with;7 Jur connaître de to have jurisdiction over [affaire, cause]; avoir à connaître de to judge ou hear [cas].B se connaître vpr1 ( soi-même) to know oneself; il se connaît mal he doesn't know himself very well; ‘connais-toi toi-même’ ‘know thyself’; il ne se connaissait plus de joie fml he was beside himself with joy; quand il a bu, il ne se connaît plus when he's drunk, he goes berserk;2 ( l'un l'autre) to know each other; nous nous sommes connus chez des amis communs we met (each other) at the home of some mutual friends;3 ( être compétent) s'y connaître en électricité/théâtre to know all about electricity/theatre; c'est le carburateur qui est bouché ou je ne m'y connais pas if I know anything about it, it's the carburettor GB ou carburetor US that's blocked.on connaît la chanson or musique! we've heard it all before!, it's the same old story!; c'est un air connu it's the same old story; connaître qch comme sa poche to know sth like the back of one's hand, to know sth inside out.[kɔnɛtr] verbe transitifA.[AVOIR UNE IDÉE DE]1. [avoir mémorisé - code postal, itinéraire, mot de passe] to know2. [être informé de - information, nouvelle] to knowje suis impatient de connaître les résultats I'm anxious to know ou to hear the resultsa. [avis, sentiment] to make knownb. [décision, jugement] to make known, to announceje vous ferai connaître ma décision plus tard I'll inform you of my decision ou I'll let you know what I've decided later3. [avoir des connaissances sur - langue, ville, appareil, œuvre] to know, to be familiar with ; [ - technique] to know, to be acquainted with ; [ - sujet] to know (about)je ne connais pas l'italien I don't know ou can't speak Italianje connais un peu l'informatique I have some basic knowledge of computing, I know a little about computingson dernier film l'a fait connaître dans le monde entier his latest film has brought him worldwide famesa traduction a fait connaître son œuvre en France her translation has brought his work to French audiencescette émission est destinée à faire connaître des artistes étrangers this programme is aimed at introducing foreign artistsça me/le connaît (familier) : les bons vins, ça le connaît! he knows a thing or two about ou he's an expert on good wine!connaît pas (familier) : à cet âge-là, la propreté, connaît pas at that age they don't know the meaning of the word cleanlinessy connaître quelque chose en to have some idea ou to know something aboutje ne mange pas de cette horreur! — tu n'y connais rien! I won't eat that horrible stuff! — you don't know what's good for you!B.[IDENTIFIER, ÊTRE EN RELATION AVEC]1. [par l'identité] to knowconnaître quelqu'un de vue/nom/réputation to know somebody by sight/name/reputationa. [révéler son identité] to make oneself knownb. [devenir une personne publique] to make oneself ou to become knownnotre auditeur n'a pas voulu se faire connaître our listener didn't want his name to be known ou wished to remain anonymousla connaissant, ça ne me surprend pas knowing her, I'm not surprisedsi tu fais ça, je ne te connais plus! if you do that, I'll have nothing more to do with you!je te connais comme si je t'avais fait! (familier) I know you as if you were my own ou like the back of my hand!2. [rencontrer] to meetah, si je t'avais connue plus tôt! if only I'd met you earlier!C.[ÉPROUVER]2. [faire l'expérience de] to experienceah, l'insouciance de la jeunesse, j'ai connu ça! I was young and carefree once!enfin, elle connut la consécration she finally received the highest accolade3. [subir - crise] to go ou to live through (inseparable), to experience ; [ - épreuve, humiliation, guerre] to live through (inseparable), to suffer, to undergoil a connu bien des déboires he has had ou suffered plenty of setbacksD.[ADMETTRE]1. [suj: chose] to haveson ambition ne connaît pas de bornes ou limites her ambition is boundless ou knows no bounds2. [suj: personne]ne connaître que: il ne connaît que le travail work is the only thing he's interested in ou he knowscontre les rhumes, je ne connais qu'un bon grog there's nothing like a hot toddy to cure a cold————————se connaître verbe pronominal (emploi réfléchi)je n'oserai jamais, je me connais I'd never dare, I know what I'm like————————se connaître verbe pronominal (emploi réciproque)————————se connaître verbe pronominal intransitifc'est un escroc, ou je ne m'y connais pas! I know a crook when I see one! -
17 Hero of Alexandria
SUBJECT AREA: Architecture and building, Mechanical, pneumatic and hydraulic engineering, Photography, film and optics, Steam and internal combustion engines[br]fl. c.62 AD Alexandria[br]Alexandrian mathematician and mechanician.[br]Nothing is known of Hero, or Heron, apart from what can be gleaned from the books he wrote. Their scope and style suggest that he was a teacher at the museum or the university of Alexandria, writing textbooks for his students. The longest book, and the one with the greatest technological interest, is Pneumatics. Some of its material is derived from the works of the earlier writers Ctesibius of Alexandria and Philo of Byzantium, but many of the devices described were invented by Hero himself. The introduction recognizes that the air is a body and demonstrates the effects of air pressure, as when air must be allowed to escape from a closed vessel before water can enter. There follow clear descriptions of a variety of mechanical contrivances depending on the effects of either air pressure or heated gases. Most of the devices seem trivial, but such toys or gadgets were popular at the time and Hero is concerned to show how they work. Inventions with a more serious purpose are a fire pump and a water organ. One celebrated gadget is a sphere that is set spinning by jets of steam—an early illustration of the reaction principle on which modern jet propulsion depends.M echanics, known only in an Arabic version, is a textbook expounding the theory and practical skills required by the architect. It deals with a variety of questions of mechanics, such as the statics of a horizontal beam resting on vertical posts, the theory of the centre of gravity and equilibrium, largely derived from Archimedes, and the five ways of applying a relatively small force to exert a much larger one: the lever, winch, pulley, wedge and screw. Practical devices described include sledges for transporting heavy loads, cranes and a screw cutter.Hero's Dioptra describes instruments used in surveying, together with an odometer or device to indicate the distance travelled by a wheeled vehicle. Catoptrics, known only in Latin, deals with the principles of mirrors, plane and curved, enunciating that the angle of incidence is equal to that of reflection. Automata describes two forms of puppet theatre, operated by strings and drums driven by a falling lead weight attached to a rope wound round an axle. Hero's mathematical work lies in the tradition of practical mathematics stretching from the Babylonians through Islam to Renaissance Europe. It is seen most clearly in his Metrica, a treatise on mensuration.Of all his works, Pneumatics was the best known and most influential. It was one of the works of Greek science and technology assimilated by the Arabs, notably Banu Musa ibn Shakir, and was transmitted to medieval Western Europe.[br]BibliographyAll Hero's works have been printed with a German translation in Heronis Alexandrini opera quae supersunt omnia, 1899–1914, 5 vols, Leipzig. The book on pneumatics has been published as The Pneumatics of Hero of Alexandria, 1851, trans. and ed. Bennet Wood-croft, London (facs. repr. 1971, introd. Marie Boas Hall, London and New York).Further ReadingA.G.Drachmann, 1948, "Ktesibios, Philon and Heron: A Study in Ancient Pneumatics", Acta Hist. Sci. Nat. Med. 4, Copenhagen: Munksgaard.T.L.Heath, 1921, A History of Greek Mathematics, Oxford (still useful for his mathematical work).LRD -
18 Poncelet, Jean Victor
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 1 July 1788 Metz, Franced. 22 December 1867 Paris, France[br]French mathematician and military and hydraulic engineer.[br]Poncelet studied mathematics at the Ecole Polytechnique in Paris from 1807 to 1810. He joined the Army, gaining admission to the Corps of Engineers. He worked on the fortifications on the Isle of Walcheren in Holland, and in 1812 he found himself on the Russian front, engulfed in the disastrous defeat of the French at Krasnoi. Poncelet was left for dead on the field, but he was found by the Russians and taken to Saratov, where he was imprisoned for two years. He had ample opportunity there to ponder mathematical problems, a mental process from which stemmed his pioneering advances in projective geometry.After his release he returned to this native city of Metz, where he undertook routine military engineering and teaching tasks. These left him time to pursue his mathematical studies in projective geometry. This bore fruit in a series of publications, most notably the first volume of his Traité des propriétés projectives des figures (1822, Paris), the first book to be devoted to the new discipline of projective geometry. With his election to the Académie des Sciences in 1834, Poncelet moved to Paris and devoted much of his time to developing courses in applied mechanics in the Faculty of Science, resulting in a number of books, especially the Introduction à la mécanique industrielle, physique ou expérimentale (1841, Paris: Metz). In 1848 he had attained the rank of general and was made Commandant of the Ecole Polytechnique, a post he held for two years. After his retirement in 1850 he was deeply involved in the industrial machines and tools division at both the Great Exhibition in London in 1851 and the similar exhibition in Paris in 1855.Most of Poncelet's work in applied mechanics and technology was conceived during the period 1825–40. His technological innovations were centred on hydraulic engineering, and in 1826 he invented an inward-flow turbine. At the same time he directed his attention to the vertical undershot water-wheel, with wooden blades set radially and substituted curved metal blades: he used tight-fitting masonry and floors in the wheel pits so that all the water would be swept into the spaces between the blades. In addition, he ensured that the water flowing from the blades fell clear of the wheel and did not run in tail water. This greatly improved the efficiency of the water-wheel.[br]BibliographyH.Tribout, 1936, Un Grand Savant: le général Jean-Victor Poncelet, Paris, pp. 204–20 (the most complete list of his published works).Further ReadingI.Didion, 1870, "Notice sur la vie et les ouvrages du général J.-V.Poncelet", Mémoires de l'Académie de Metz 50:101–59.M.Daumas (ed), 1968, Histoire des techniques, Vol. 3, Paris (briefly describes his technological work).LRD -
19 Bell, Alexander Graham
SUBJECT AREA: Telecommunications[br]b. 3 March 1847 Edinburgh, Scotlandd. 3 August 1922 Beinn Bhreagh, Baddeck, Cape Breton Island, Nova Scotia, Canada[br]Scottish/American inventor of the telephone.[br]Bell's grandfather was a professor of elocution in London and his father an authority on the physiology of the voice and on elocution; Bell was to follow in their footsteps. He was educated in Edinburgh, leaving school at 13. In 1863 he went to Elgin, Morayshire, as a pupil teacher in elocution, with a year's break to study at Edinburgh University; it was in 1865, while still in Elgin, that he first conceived the idea of the electrical transmission of speech. He went as a master to Somersetshire College, Bath (now in Avon), and in 1867 he moved to London to assist his father, who had taken up the grandfather's work in elocution. In the same year, he matriculated at London University, studying anatomy and physiology, and also began teaching the deaf. He continued to pursue the studies that were to lead to the invention of the telephone. At this time he read Helmholtz's The Sensations of Tone, an important work on the theory of sound that was to exert a considerable influence on him.In 1870 he accompanied his parents when they emigrated to Canada. His work for the deaf gained fame in both Canada and the USA, and in 1873 he was apponted professor of vocal physiology and the mechanics of speech at Boston University, Massachusetts. There, he continued to work on his theory that sound wave vibrations could be converted into a fluctuating electric current, be sent along a wire and then be converted back into sound waves by means of a receiver. He approached the problem from the background of the theory of sound and voice production rather than from that of electrical science, and by 1875 he had succeeded in constructing a rough model. On 7 March 1876 Bell spoke the famous command to his assistant, "Mr Watson, come here, I want you": this was the first time a human voice had been transmitted along a wire. Only three days earlier, Bell's first patent for the telephone had been granted. Almost simultaneously, but quite independently, Elisha Gray had achieved a similar result. After a period of litigation, the US Supreme Court awarded Bell priority, although Gray's device was technically superior.In 1877, three years after becoming a naturalized US citizen, Bell married the deaf daughter of his first backer. In August of that year, they travelled to Europe to combine a honeymoon with promotion of the telephone. Bell's patent was possibly the most valuable ever issued, for it gave birth to what later became the world's largest private service organization, the Bell Telephone Company.Bell had other scientific and technological interests: he made improvements in telegraphy and in Edison's gramophone, and he also developed a keen interest in aeronautics, working on Curtiss's flying machine. Bell founded the celebrated periodical Science.[br]Principal Honours and DistinctionsLegion of Honour; Hughes Medal, Royal Society, 1913.Further ReadingObituary, 7 August 1922, The Times. Dictionary of American Biography.R.Burlingame, 1964, Out of Silence into Sound, London: Macmillan.LRD -
20 Rankine, William John Macquorn
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 5 July 1820 Edinburgh, Scotlandd. 1872[br][br]Rankine was educated at Ayr Academy and Glasgow High School, although he appears to have learned much of his basic mathematics and physics through private study. He attended Edinburgh University and then assisted his father, who was acting as Superintendent of the Edinburgh and Dalkeith Railway. This introduction to engineering practice was followed in 1838 by his appointment as a pupil to Sir John MacNeill, and for the next four years he served under MacNeill on his Irish railway projects. While still in his early twenties, Rankine presented pioneering papers on metal fatigue and other subjects to the Institution of Civil Engineers, for which he won a prize, but he appears to have resigned from the Civils in 1857 after an argument because the Institution would not transfer his Associate Membership into full Membership. From 1844 to 1848 Rankine worked on various projects for the Caledonian Railway Company, but his interests were becoming increasingly theoretical and a series of distinguished papers for learned societies established his reputation as a leading scholar in the new science of thermodynamics. He was elected Fellow of the Royal Society in 1853. At the same time, he remained intimately involved with practical questions of applied science, in shipbuilding, marine engineering and electric telegraphy, becoming associated with the influential coterie of fellow Scots such as the Thomson brothers, Napier, Elder, and Lewis Gordon. Gordon was then the head of a large and successful engineering practice, but he was also Regius Professor of Engineering at the University of Glasgow, and when he retired from the Chair to pursue his business interests, Rankine, who had become his Assistant, was appointed in his place.From 1855 until his premature death in 1872, Rankine built up an impressive engineering department, providing a firm theoretical basis with a series of text books that he wrote himself and most of which remained in print for many decades. Despite his quarrel with the Institution of Civil Engineers, Rankine took a keen interest in the institutional development of the engineering profession, becoming the first President of the Institution of Engineers and Shipbuilders in Scotland, which he helped to establish in 1857. Rankine campaigned vigorously for the recognition of engineering studies as a full university degree at Glasgow, and he achieved this in 1872, the year of his death. Rankine was one of the handful of mid-nineteenth century engineers who virtually created engineering as an academic discipline.[br]Principal Honours and DistinctionsFRS 1853. First President, Institution of Engineers and Shipbuilders in Scotland, 1857.Bibliography1858, Manual of Applied Mechanics.1859, Manual of the Steam Engine and Other Prime Movers.1862, Manual of Civil Engineering.1869, Manual of Machinery and Millwork.Further ReadingJ.Small, 1957, "The institution's first president", Proceedings of the Institution of Engineers and Shipbuilders in Scotland: 687–97.H.B.Sutherland, 1972, Rankine. His Life and Times.ABBiographical history of technology > Rankine, William John Macquorn
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List of engineering science and mechanics topics — This page aims to list all articles related to the specific discipline of Engineering Science and Mechanics (ESM). For a broad overview of engineering, please see Engineering. For biographies please see List of engineers and… … Wikipedia
mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application … Universalium
science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… … Universalium
Science in medieval Islam — In the history of science, Islamic science refers to the science developed under the Islamic civilization between the 8th and 16th centuries, during what is known as the Islamic Golden Age. [cite journal|first=A. I.|last=Sabra|authorlink=A. I.… … Wikipedia
Science (Philosophies of) — Philosophies of science Mach, Duhem, Bachelard Babette E.Babich THE TRADITION OF CONTINENTAL PHILOSOPHY OF SCIENCE If the philosophy of science is not typically represented as a ‘continental’ discipline it is nevertheless historically rooted in… … History of philosophy
Mechanics' Institutes — The Leeds City Mechanics Institutes Buildings Historically, Mechanics Institutes were educational establishments formed to provide adult education, particularly in technical subjects, to working men. As such, they were often funded by local… … Wikipedia
The Fabric of Reality — is a 1997 book by physicist David Deutsch, which expands upon his views of quantum mechanics and its meanings for understanding reality.This interpretation, or what he calls the multiverse hypothesis, is one strand of a four strand theory of… … Wikipedia
The Feynman Lectures on Physics — by Richard Feynman, Robert Leighton, and Matthew Sands is perhaps Feynman s most accessible technical work and is considered a classic introduction to modern physics. It includes lectures on mathematics, electromagnetism, Newtonian physics,… … Wikipedia
Science and British philosophy: Boyle and Newton — G.A.J.Rogers INTRODUCTION Achievements in the natural sciences in the period from Nicholas Copernicus (1473– 1543) to the death of Isaac Newton (1642–1727) changed our whole understanding of the nature of the universe and of the ways in which we… … History of philosophy
