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41 соглашение соглашени·е
1) (договор) agreement, accord, covenantаннулировать соглашение — to annul / to cancel / to rescind / to nullify an agreement
внести изменения в соглашение, изменить соглашение — to alter / to modify an agreement
выполнять соглашение — to implement / to abide by an agreement, to adhere / to accede to a convention
выработать соглашение — to work out an agreement / a convention, to hammer out an agreement
заключить соглашение — to conclude / to enter into / to make an agreement, to make an arrangement
нарушать соглашение — to transgress / to break an agreement
одобрить соглашение — to endorse an agreement, to approve a contract
отказаться от соглашения — to repudiate an agreement / an accord
подпадать под соглашение — to fall within an agreement, to be covered by an agreement
подрывать соглашение — to undermine an / agreement
придерживаться соглашения — to adhere to / to stand by an agreement
признать соглашение недействительным — to declare an agreement invalid / (mull and) void
присоединиться к соглашению — to accede to an agreement / a covenant
ратифицировать соглашение — to ratify an agreement / a covenant
соблюдать соглашение / условия соглашения — to honour / to observe an agreement
сорвать соглашение — to wreck / to frustrate an agreement
все эти соглашения лишены силы и не могут быть приведены в исполнение / выполнены — all such agreements are void and unenforceable
бессрочное соглашение — agreement of unlimited duration, open-ended agreement
взаимоприемлемое соглашение — mutually acceptable / concerted agreement
временное соглашение — interim / temporary agreement / contract
всеобъемлющее соглашение — comprehensive agreement, across-the-board agreement
всеобъемлющее соглашение о неприменении и ликвидации ядерного оружия — all-embracing agreement on the non-use and elimination of nuclear arms
Генеральное соглашение по таможенным тарифам и торговле — General Agreement on Tariffs and Trade, GATT
кабальное соглашение — fettering / enslaving agreement
компенсационное соглашение — compensation / offsetting agreement
контролируемое должным образом соглашение — adequately supervised / verified agreement
международное соглашение — international agreement / covenant
письменное соглашение — agreement in writing / in written form
предварительное соглашение — preliminary / tentative agreement
рабочее соглашение — implementing / working agreement
справедливое, поддающееся контролю соглашение — equitable, verifiable agreement
товарное соглашение, соглашение по сырьевым товарам — commodity agreement
торговые соглашения — commercial / trade agreements
торговое и платёжное соглашение, соглашение о торговле и платежах — trade-and-payment agreement
трёхстороннее соглашение — triangular / tripartite agreement
устное соглашение — oral / parol agreement
выполнение соглашения — execution of the convention, implementation of an agreement
действенность / жизнеспособность соглашения — viability / force of an agreement
нарушение соглашения — violation of an agreement, breach of a contract
несоблюдение соглашения — noncompliance with / nonobservance of an agreement
положения / статьи соглашения, регулирующие торговлю — enactments for the regulation of trade
соглашение, в основе которого лежит тайный сговор (например, монополистических фирм) — collusive agreement
соглашение, выполнение которого поддаётся проверке — verifiable agreement
соглашение, достигнутое на основе консенсуса — consensus agreement
соглашение, заключаемое путём обмена нотами или письмами — agreement by exchange of notes or letters
соглашение, касающееся существа вопроса — substantive agreement
соглашение, не требующее ратификации — agreement without the requirement of ratification
соглашение об аннулировании долгов, моратории, сроков погашения или субсидировании процентов юр. — agreement on debt cancellation, moratorium, rescheduling or interest subsidigation
соглашение о взаимном предоставлении государственных кредитов — arrangements for the reciprocal availability of government credits
соглашение о глубоководной разработке полезных ископаемых на дне морей и океанов — agreement on deep seabed mining
соглашение "о двойном глобальном нуле" — a global double zero agreement
соглашение о мерах по уменьшению риска ядерной войны — agreement on measures to reduce the risk of the outbreak of nuclear war
соглашение о механизме разрешения торговых споров в арбитраже — agreement establishing an arbitration mechanism for settling commercial disputes
соглашение о проходе войск через... — agreement on the passage of troops through...
соглашение о 50-процентном сокращении стратегических наступательных вооружений, СНВ — agreement on 50 percent reductions in strategic offensive forces
соглашение об установлении дипломатических отношений и обмене дипломатическими представительствами — agreement on the establishment of diplomatic relations and exchange of diplomatic representatives
соглашение по вопросам наследования, наследственное соглашение — inheritance agreement
соглашение, подлежащее обнародованию — public convention
соглашение, устанавливающее модус вивенди — agreement providing for a modus vivendi
истечение / прекращение срока действия соглашения — expiration / termination of an agreement
страны, участвующие в данном соглашении — affected countries
выработать текст соглашения — to draft / to draw up the text of an agreement
2) (взаимное согласие) agreement, arrangement, understandingдостигнуть соглашения — to reach an agreement, to come to an agreement / arrangement (on, about)
достигнуть соглашения (по какому-л.) вопросу — to agree on / as to (smth.)
прийти к соглашению — to come to an agreement / understanding, to arrive at an agreement / understanding
джентльменское соглашение — gentlemen's agreement, honourable understanding
дружеское / полюбовное соглашение — amicable arrangement
мирное соглашение — peace / peaceful agreement
специальное соглашение — specific / ad hoc arrangement
устное соглашение — oral / parol / verbal agreement
частное соглашение — private understanding, special agreement
вопросы, по которым возможно или достигнуто соглашение — areas of agreement
соглашение между государственными / министерскими канцеляриями — chancellery agreement
соглашение об условиях проведения конференции / совещания / заседания — conference agreement
по взаимному соглашению — by mutual agreement / consent
Russian-english dctionary of diplomacy > соглашение соглашени·е
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42 cabestro
(Sp. model spelled same [kabéstro] < Latin capistrum 'halter')1) DARE: 1805. Originally a halter or tether made of a hair rope. Watts notes that its original meaning was broadened to refer to any hair rope, or even to a reata, which is generally a rope made of rawhide. This last application is not widespread, however, and can be confusing, since cabestro is often used to distinguish a rope made of hair from one made of rawhide or leather. The DRAE defines cabestro as a halter that is tied to the head or neck of a horse to lead or secure it. Islas's definition differs from the DRAE's in that the horsehair cabestro need not be attached to a halter. According to Islas, it is the term most commonly used in Mexico to refer to a twisted horsehair rope used to restrain, lead, or train a horse. Its length is variable—it may be some sixteen feet long and serve as a halter, or about twenty feet long and function as a double-rein, or from twenty-six to thirty-three feet long and serve as a "false rein" (or halter and headstall used when breaking a horse). The thickness of the cabestro or cabresto also varies, depending on the function of the rope. Santamaría concurs with Islas, noting that cabresto is so common in Mexico that cabestro sounds strange to the ear. He cites Salvá as saying that cabresto is an antiquated form that appears in writing in the sixteenth century. (Linguistically, the fact that the /r/ appears to move from one syllable to the next and forms a consonant cluster with /b/ or /t/ is known as metathesis. Such variation is common in popularly transmitted forms and is evidenced in the history of both Spanish and English.) Cobos indicates that in New Mexico and southern Colorado cabresto can refer to a rope in general.Alternate forms: cabarista, cabaros, caberes, caberos, caboras, caboris, cabras, cabrass, cabressa, cabresse, cabresta, cabresto, cabris, cavraces.2) According to Smith, cabestro can also refer to "one who might be led around by the nose." Spanish sources do not reference this term as a noun that can be applied to a person. However, the DRAE references cabestrear and Santamaría references cabrestear as verbs meaning to lead an animal around with a cabestro or cabresto. Santamaría indicates that the verb form can be used figuratively to lead a person "by the nose" or to coerce him or her to do something against his or her will. According to the DRAE, llevar/ traer del cabestro a alguien has the same figurative meaning in Spain. -
43 θέσις
A setting, placing, ἐπέων θ. setting of words in verse, Pi.O.3.8;πλίνθων καὶ λίθων Pl.R. 333b
, cf. IG7.3073.33 (Lebad.); θ. νόμων law giving, X.Ath.3.2, Pl.Lg. 690d: in pl.,νόμων θέσεις D.18.309
, Arist.Pol. 1289a22; θ. ὀνόματος giving of a name, Pl.Cra. 390d; ἐπί τινος application of word to object, Demetr.Eloc. 145; θ. ἀγώνων institution of games, D.S.4.53; ordinance, disposition, S.Ichn.277 (only here in Trag.); setting forth in legal form,ἀσφαλειῶν POxy.1027.12
(i A.D.).II laying down, ὅπλων, opp. ἀναίρεσις, Pl.Lg. 814a; of diggers, plunging of the spade, opp. ἄρσις, Gp.2.45.5.2 deposit of money, preparatory to a law-suit, Ar.Nu. 1191 (pl.): generally, sum deposited in a temple, Inscr.Délos 365.14 (iii B.C.), IG12(3).322 (pl., Thera).3 pledging, giving as security, D.33.12, Lys.8.10.III adoption of a child,κατὰ θέσιν υἱωνός Plb.18.35.9
, cf. Ph.2.36, Philostr. VA6.11;Κρινοτέλην Πινδάρου, θέσει δὲ Φιλοξένου IG12(3).274
([place name] Anaphe), cf. 12(7).50 ([place name] Amorgos); adoption as a citizen of a foreign state, Ἁλεξανδρεὺς θέσει, Ἁθηναῖος θ. (opp. φύσει), Suid. s.v. Ἀρίσταρχος, Ἀριστοφάνης Πόδιος.IV situation, of a city, Hp.Aër.6;πόλις αὐτάρκη θ. κειμένη Th.1.37
, cf. 5.7;ἡ θ. τῆς χώρας πρὸς τὰ πνεύματα Thphr.CP3.23.5
; τόπων θ. Plb.1.41.7: Astron.,θ. τῶν ἄστρων Herm. in Phdr.p.149A.
; position, arrangement,λεγομένων καὶ γραφομένων Pl.Tht. 206a
;τῶν μερῶν θέσεις Id.Lg. 668e
, cf. Epicur.Ep.1p.11U., Fr.30 (pl.).2 Math., local position, Arist.GC 322b33; ἔχειν θ. Id.APo. 88a34; θ. ἔχειν πρὸς ἄλληλα to have a local relation, Id.Cat. 4b21, cf. Pl.R. 586c;τῇ θ. μέσον Arist.APr. 25b36
: Geom., θέσει δεδόσθαι or εἶναι, to be given in position, Archim.Sph.Cyl.2.3, Euc.Dat.4, Apollon.Perg.Con.2.46, al.; παρὰ θέσει parallel to a straight line given in position, [Euc.]Dat.Def.15; εἰς δύο θέσεις τὰς AB, AT to meet the two straight lines AB, AT given in position, Hero Metr.3.10;κατὰ τὴν θ. τὴν πρὸς ἡμᾶς Arist.Ph. 208b23
, etc.; οὐ τῇ θ. διαφέροντα μόνον, ἀλλὰ καὶ τῇ δυνάμει ib.22; so in Music, of notes in a scale, κατὰ θέσιν, opp. κατὰ δύναμιν, Ptol.Harm.2.5.V Philos., thesis, position, assumed and requiring proof, Pl.R. 335a, Arist.Top. 104b19, APo. 72a15; θέσιν διαφυλάττειν to maintain a thesis, Id.EN 1096a2; κινεῖν to controvert it, Plu.2.687b, cf. 328a, etc.2 general question, opp. ὑπόθεσις ( special case), Aphth.Prog.13, Theon Prog.12, cf. Cic.Top.21.79, Quint.3.5.5 (but θ. includes ὑπόθεσις and ὁρισμός, Phlp.in APo.35.1; opp. ἀξίωμα, ib.34.9).3 arbitrary determination, esp. in dat.θέσει, τὰ ὀνόματα μὴ θ. γενέσθαι Epicur.Ep. 1p.27U.
; opp. φύσει, Chrysipp.Stoic.3.76, Str.2.3.7, etc.; τὰ θ. δίκαια, νόμιμα, Ph.1.50, 112; σημαίνειν θ. S.E.P.2.256.VI a setting down, opp. ἄρσις ( lifting),πᾶσα πορεία ἐξ ἄρσεως καὶ θέσεως συντελεῖται Arist.Pr. 885b6
: hence, in rhythm, downward beat, opp. the upward ([etym.] ἄρσις), Aristid.Quint.1.13, Bacch.Harm.98, etc.VII in prosody, θέσει μακρὰ συλλαβή long by position, opp. φύσει, D.T.632.30, Heph. 1.3: orig. prob. in signf. v.3, cf. Sch.D.T.p.206H.2 θέσεις, αἱ, in punctuation, stops, Donat.in Gramm.Lat.4.372 K.VIII part of a horse's hoof,ἡ θ. τοῦ ποδός Hippiatr.82
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44 dampi
English Definition: (noun) light and gentle touch (as by the soft breeze on one's skin); light and gentle application of medication (as on wounds)Notes: Malay -
45 Branca, Giovanni de
SUBJECT AREA: Steam and internal combustion engines[br]b. 1571 Italyd. 1640 Italy[br]Italian architect who proposed what has been suggested as an early turbine, using a jet of steam to turn a wheel.[br]Branca practised architecture at Loretto. In 1629 he published Le Machine: volume nuovo et di molto artificio, in which he described various mechanisms. One was the application of rolls for working copper, lead or the precious metals gold and silver. The rolls were powered by a form of smokejack with the gases from the fire passing up a long tube forming a chimney which, through gearing, turned the rolls. Another device used a jet of steam from a boiler issuing from a mouthpiece shaped like the head of a person to impinge upon blades around the circumference of a horizontal wheel, connected through triple reduction gearing to drop stamps, for pounding drugs. This was a form of impulse turbine and has been claimed as the first machine worked by steam to do a particular operation since Heron's temple doors.[br]Further ReadingH.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (includes a description and picture of the turbine).C.Singer (ed.), 1957, A History of Technology, Vols III and IV, Oxford University Press (provides notes on Branca).RLH -
46 Edison, Thomas Alva
SUBJECT AREA: Architecture and building, Automotive engineering, Electricity, Electronics and information technology, Metallurgy, Photography, film and optics, Public utilities, Recording, Telecommunications[br]b. 11 February 1847 Milan, Ohio, USAd. 18 October 1931 Glenmont[br]American inventor and pioneer electrical developer.[br]He was the son of Samuel Edison, who was in the timber business. His schooling was delayed due to scarlet fever until 1855, when he was 8½ years old, but he was an avid reader. By the age of 14 he had a job as a newsboy on the railway from Port Huron to Detroit, a distance of sixty-three miles (101 km). He worked a fourteen-hour day with a stopover of five hours, which he spent in the Detroit Free Library. He also sold sweets on the train and, later, fruit and vegetables, and was soon making a profit of $20 a week. He then started two stores in Port Huron and used a spare freight car as a laboratory. He added a hand-printing press to produce 400 copies weekly of The Grand Trunk Herald, most of which he compiled and edited himself. He set himself to learn telegraphy from the station agent at Mount Clements, whose son he had saved from being run over by a freight car.At the age of 16 he became a telegraphist at Port Huron. In 1863 he became railway telegraphist at the busy Stratford Junction of the Grand Trunk Railroad, arranging a clock with a notched wheel to give the hourly signal which was to prove that he was awake and at his post! He left hurriedly after failing to hold a train which was nearly involved in a head-on collision. He usually worked the night shift, allowing himself time for experiments during the day. His first invention was an arrangement of two Morse registers so that a high-speed input could be decoded at a slower speed. Moving from place to place he held many positions as a telegraphist. In Boston he invented an automatic vote recorder for Congress and patented it, but the idea was rejected. This was the first of a total of 1180 patents that he was to take out during his lifetime. After six years he resigned from the Western Union Company to devote all his time to invention, his next idea being an improved ticker-tape machine for stockbrokers. He developed a duplex telegraphy system, but this was turned down by the Western Union Company. He then moved to New York.Edison found accommodation in the battery room of Law's Gold Reporting Company, sleeping in the cellar, and there his repair of a broken transmitter marked him as someone of special talents. His superior soon resigned, and he was promoted with a salary of $300 a month. Western Union paid him $40,000 for the sole rights on future improvements on the duplex telegraph, and he moved to Ward Street, Newark, New Jersey, where he employed a gathering of specialist engineers. Within a year, he married one of his employees, Mary Stilwell, when she was only 16: a daughter, Marion, was born in 1872, and two sons, Thomas and William, in 1876 and 1879, respectively.He continued to work on the automatic telegraph, a device to send out messages faster than they could be tapped out by hand: that is, over fifty words per minute or so. An earlier machine by Alexander Bain worked at up to 400 words per minute, but was not good over long distances. Edison agreed to work on improving this feature of Bain's machine for the Automatic Telegraph Company (ATC) for $40,000. He improved it to a working speed of 500 words per minute and ran a test between Washington and New York. Hoping to sell their equipment to the Post Office in Britain, ATC sent Edison to England in 1873 to negotiate. A 500-word message was to be sent from Liverpool to London every half-hour for six hours, followed by tests on 2,200 miles (3,540 km) of cable at Greenwich. Only confused results were obtained due to induction in the cable, which lay coiled in a water tank. Edison returned to New York, where he worked on his quadruplex telegraph system, tests of which proved a success between New York and Albany in December 1874. Unfortunately, simultaneous negotiation with Western Union and ATC resulted in a lawsuit.Alexander Graham Bell was granted a patent for a telephone in March 1876 while Edison was still working on the same idea. His improvements allowed the device to operate over a distance of hundreds of miles instead of only a few miles. Tests were carried out over the 106 miles (170 km) between New York and Philadelphia. Edison applied for a patent on the carbon-button transmitter in April 1877, Western Union agreeing to pay him $6,000 a year for the seventeen-year duration of the patent. In these years he was also working on the development of the electric lamp and on a duplicating machine which would make up to 3,000 copies from a stencil. In 1876–7 he moved from Newark to Menlo Park, twenty-four miles (39 km) from New York on the Pennsylvania Railway, near Elizabeth. He had bought a house there around which he built the premises that would become his "inventions factory". It was there that he began the use of his 200- page pocket notebooks, each of which lasted him about two weeks, so prolific were his ideas. When he died he left 3,400 of them filled with notes and sketches.Late in 1877 he applied for a patent for a phonograph which was granted on 19 February 1878, and by the end of the year he had formed a company to manufacture this totally new product. At the time, Edison saw the device primarily as a business aid rather than for entertainment, rather as a dictating machine. In August 1878 he was granted a British patent. In July 1878 he tried to measure the heat from the solar corona at a solar eclipse viewed from Rawlins, Wyoming, but his "tasimeter" was too sensitive.Probably his greatest achievement was "The Subdivision of the Electric Light" or the "glow bulb". He tried many materials for the filament before settling on carbon. He gave a demonstration of electric light by lighting up Menlo Park and inviting the public. Edison was, of course, faced with the problem of inventing and producing all the ancillaries which go to make up the electrical system of generation and distribution-meters, fuses, insulation, switches, cabling—even generators had to be designed and built; everything was new. He started a number of manufacturing companies to produce the various components needed.In 1881 he built the world's largest generator, which weighed 27 tons, to light 1,200 lamps at the Paris Exhibition. It was later moved to England to be used in the world's first central power station with steam engine drive at Holborn Viaduct, London. In September 1882 he started up his Pearl Street Generating Station in New York, which led to a worldwide increase in the application of electric power, particularly for lighting. At the same time as these developments, he built a 1,300yd (1,190m) electric railway at Menlo Park.On 9 August 1884 his wife died of typhoid. Using his telegraphic skills, he proposed to 19-year-old Mina Miller in Morse code while in the company of others on a train. He married her in February 1885 before buying a new house and estate at West Orange, New Jersey, building a new laboratory not far away in the Orange Valley.Edison used direct current which was limited to around 250 volts. Alternating current was largely developed by George Westinghouse and Nicola Tesla, using transformers to step up the current to a higher voltage for long-distance transmission. The use of AC gradually overtook the Edison DC system.In autumn 1888 he patented a form of cinephotography, the kinetoscope, obtaining film-stock from George Eastman. In 1893 he set up the first film studio, which was pivoted so as to catch the sun, with a hinged roof which could be raised. In 1894 kinetoscope parlours with "peep shows" were starting up in cities all over America. Competition came from the Latham Brothers with a screen-projection machine, which Edison answered with his "Vitascope", shown in New York in 1896. This showed pictures with accompanying sound, but there was some difficulty with synchronization. Edison also experimented with captions at this early date.In 1880 he filed a patent for a magnetic ore separator, the first of nearly sixty. He bought up deposits of low-grade iron ore which had been developed in the north of New Jersey. The process was a commercial success until the discovery of iron-rich ore in Minnesota rendered it uneconomic and uncompetitive. In 1898 cement rock was discovered in New Village, west of West Orange. Edison bought the land and started cement manufacture, using kilns twice the normal length and using half as much fuel to heat them as the normal type of kiln. In 1893 he met Henry Ford, who was building his second car, at an Edison convention. This started him on the development of a battery for an electric car on which he made over 9,000 experiments. In 1903 he sold his patent for wireless telegraphy "for a song" to Guglielmo Marconi.In 1910 Edison designed a prefabricated concrete house. In December 1914 fire destroyed three-quarters of the West Orange plant, but it was at once rebuilt, and with the threat of war Edison started to set up his own plants for making all the chemicals that he had previously been buying from Europe, such as carbolic acid, phenol, benzol, aniline dyes, etc. He was appointed President of the Navy Consulting Board, for whom, he said, he made some forty-five inventions, "but they were pigeonholed, every one of them". Thus did Edison find that the Navy did not take kindly to civilian interference.In 1927 he started the Edison Botanic Research Company, founded with similar investment from Ford and Firestone with the object of finding a substitute for overseas-produced rubber. In the first year he tested no fewer than 3,327 possible plants, in the second year, over 1,400, eventually developing a variety of Golden Rod which grew to 14 ft (4.3 m) in height. However, all this effort and money was wasted, due to the discovery of synthetic rubber.In October 1929 he was present at Henry Ford's opening of his Dearborn Museum to celebrate the fiftieth anniversary of the incandescent lamp, including a replica of the Menlo Park laboratory. He was awarded the Congressional Gold Medal and was elected to the American Academy of Sciences. He died in 1931 at his home, Glenmont; throughout the USA, lights were dimmed temporarily on the day of his funeral.[br]Principal Honours and DistinctionsMember of the American Academy of Sciences. Congressional Gold Medal.Further ReadingM.Josephson, 1951, Edison, Eyre \& Spottiswode.R.W.Clark, 1977, Edison, the Man who Made the Future, Macdonald \& Jane.IMcN -
47 Maxwell, James Clerk
[br]b. 13 June 1831 Edinburgh, Scotlandd. 5 November 1879 Cambridge, England[br]Scottish physicist who formulated the unified theory of electromagnetism, the kinetic theory of gases and a theory of colour.[br]Maxwell attended school at the Edinburgh Academy and at the age of 16 went on to study at Edinburgh University. In 1850 he entered Trinity College, Cambridge, where he graduated four years later as Second Wrangler with the award of the Smith's Prize. Two years later he was appointed Professor at Marischal College, Aberdeen, where he married the Principal's daughter. In 1860 he moved to King's College London, but on the death of his father five years later, Maxwell returned to the family home in Scotland, where he continued his researches as far as the life of a gentleman farmer allowed. This rural existence was interrupted in 1874 when he was persuaded to accept the chair of Cavendish Professor of Experimental Physics at Cambridge. Unfortunately, in 1879 he contracted the cancer that brought his brilliant career to an untimely end. While at Cambridge, Maxwell founded the Cavendish Laboratory for research in physics. A succession of distinguished physicists headed the laboratory, making it one of the world's great centres for notable discoveries in physics.During the mid-1850s, Maxwell worked towards a theory to explain electrical and magnetic phenomena in mathematical terms, culminating in 1864 with the formulation of the fundamental equations of electromagnetism (Maxwell's equations). These equations also described the propagation of light, for he had shown that light consists of transverse electromagnetic waves in a hypothetical medium, the "ether". This great synthesis of theories uniting a wide range of phenomena is worthy to set beside those of Sir Isaac Newton and Einstein. Like all such syntheses, it led on to further discoveries. Maxwell himself had suggested that light represented only a small part of the spectrum of electromagnetic waves, and in 1888 Hertz confirmed the discovery of another small part of the spectrum, radio waves, with momentous implications for the development of telecommunication technology. Maxwell contributed to the kinetic theory of gases, which by then were viewed as consisting of a mass of randomly moving molecules colliding with each other and with the walls of the containing vessel. From 1869 Maxwell applied statistical methods to describe the molecular motion in mathematical terms. This led to a greater understanding of the behaviour of gases, with important consequences for the chemical industry.Of more direct technological application was Maxwell's work on colour vision, begun in 1849, showing that all colours could be derived from the three primary colours, red, yellow and blue. This enabled him in 1861 to produce the first colour photograph, of a tartan. Maxwell's discoveries about colour vision were quickly taken up and led to the development of colour printing and photography.[br]BibliographyMost of his technical papers are reprinted in The Scientific Papers of J.Clerk Maxwell, 1890, ed. W.D.Niven, Cambridge, 2 vols; reprinted 1952, New York.Maxwell published several books, including Theory of Heat, 1870, London (1894, 11th edn, with notes by Lord Rayleigh) and Theory of Electricity and Magnetism, 1873, Oxford (1891, ed. J.J.Thomson, 3rd edn).Further ReadingL.Campbell and W.Garnett, 1882, The Life of James Clerk Maxwell, London (the standard biography).J.J.Thomson (ed.), 1931, James Clerk Maxwell 1831–1931, Cambridge. J.G.Crowther, 1932, British Scientists of the Nineteenth Century, London.LRD -
48 Sickels, Frederick Ellsworth
[br]b. 20 September 1819 Gloucester County, New Jersey, USAd. 8 March 1895 Kansas City, Missouri, USA[br]American inventor of a steam-inlet cut-off valve mechanism for engines and steam steering apparatus for ships.[br]Sickels was educated in New York City, where his father was a practising physician. As he showed mechanical aptitude, at the age of 16 he joined the Harlem Railroad as a rod man, and a year later became a machinist in the Allaire Works in New York, studying physics and mechanics in his spare time. He perfected his cut-off mechanism for drop valves in 1841 and patented it the following year. The liberating mechanism allowed the valve to fall quickly onto its seat and so eliminated "wire-drawing" of the steam, and Sickels arranged a dashpot to prevent the valve hitting the seat violently. Through further improvements patented in 1843 and 1845, he gained a considerable fortune, but he subsequently lost it through fighting patent infringements because his valve gear was copied extensively.In 1846 he turned his attention to using a steam engine to assist the steering in ships. He filed a patent application in 1849 and completed a machine in 1854, but he could not find any ship owner willing to try it until 1858, when it was fitted to the August. A patent was granted in 1860, but as no American ship owners showed interest Sickels went to England, where he obtained three British patents; once again, however, he found no interest. He returned to the United States in 1867 and continued his fruitless efforts until he was financially ruined. He patented improved compound engines in 1875 and also contributed improvements in sinking pneumatic piles. He turned to civil engineering and engaged in railway and bridge construction in the west. In about 1890 he was made Consulting Engineer to the National Water Works Company of New York and in 1891 became Chief Engineer of its operations at Kansas City.[br]Further ReadingDictionary of American Biography, 1935, Vol. XVII, New York: C.Scribner's Sons. C.T.Porter, 1908, Engineering Reminiscences, reprinted 1985, Bradley, Ill.: Lindsay Publications (comments on his cut-off valve gear).H.G.Conway, 1955–6, "Some notes on the origins of mechanical servo systems", Transactions of the Newcomen Society 29 (comments on his steam steering apparatus).RLHBiographical history of technology > Sickels, Frederick Ellsworth
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