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scientific chemist

  • 1 химик-исследователь

    1) General subject: research chemist
    2) Perfume: scientific chemist

    Универсальный русско-английский словарь > химик-исследователь

  • 2 mancebo

    m.
    youth, boyo, young man, ephebe.
    * * *
    ► nombre masculino,nombre femenino
    1 coloquial (joven - hombre) young man; (- mujer) young woman
    2 (dependiente) assistant
    * * *
    masculino (arc) youth, shaveling (arch)
    * * *
    Ex. This book charts the rise of Humphry Davy from his lowly beginnings as a chemist's assistant to one of the most brilliant scientific minds of the 19th century.
    ----
    * mancebo de farmacia = chemist's assistant.
    * * *
    masculino (arc) youth, shaveling (arch)
    * * *

    Ex: This book charts the rise of Humphry Davy from his lowly beginnings as a chemist's assistant to one of the most brilliant scientific minds of the 19th century.

    * mancebo de farmacia = chemist's assistant.

    * * *
    ( arc)
    youth, shaveling ( arch)
    * * *
    mancebo, -a
    ♦ nm,f
    [en farmacia] assistant
    ♦ nm
    Literario o Hum [mozo] swain
    * * *
    m youth

    Spanish-English dictionary > mancebo

  • 3 mancebo de farmacia

    Ex. This book charts the rise of Humphry Davy from his lowly beginnings as a chemist's assistant to one of the most brilliant scientific minds of the 19th century.
    * * *

    Ex: This book charts the rise of Humphry Davy from his lowly beginnings as a chemist's assistant to one of the most brilliant scientific minds of the 19th century.

    Spanish-English dictionary > mancebo de farmacia

  • 4 esforzarse

    1 (físicamente) to make an effort, exert oneself; (moralmente) to try hard, strive
    * * *
    verb
    to strive, make an effort
    * * *
    VPR to exert o.s., make an effort

    hay que esforzarse más — you must try harder, you must make more effort

    esforzarse en o por conseguir algo — to struggle o strive to achieve sth

    * * *
    = put forth + effort, put forth + energy, strive, strain, labour [labor, -USA], toil, struggle, work + hard, slave away, try + hard.
    Ex. Because of this human characteristic of dislike of work, most people must be coerced, controlled, directed, threatened with punishment to get them to put forth adequate effort.
    Ex. The goal may be of little value or of high scientific or cultural significance, but energy is put forth to accomplish a task.
    Ex. The abstractor must resist the temptation to use long sentences in striving to avoid repetition.
    Ex. His small foreign-made car strained with the added burden of an interior packed to capacity with personal belongings and a heavily laden U-Haul trailor attached to the rear.
    Ex. So we see many wits and ingenuities lying scattered up and down the world, whereof some are now labouring to do what is already done and puzzling themselves to reinvent what is already invented.
    Ex. His novels reflect the story of the spirit of man, undaunted and ceaselessly toiling and achieving ever higher levels of culture.
    Ex. The chemist, struggling with the synthesis of an organic compound, has all the chemical literature before him in his laboratory.
    Ex. Not only are the standards written, but there is a body called the Peer Council which works very hard at enforcing the standards.
    Ex. Anyone who's spoken to me recently is probably aware that on most nights I'm up slaving away to the wee hours of the morning on my project.
    Ex. Over the years the profession has tried hard to ignore the steady stream of library school closings.
    ----
    * esforzarse al máximo = do + Posesivo + utmost, stretch + Reflexivo, stretch + Nombre + to the limit, give + Posesivo + utmost, lean over + backwards, work + hard, give + Posesivo + best.
    * esforzarse por = endeavour [endeavor, -USA], try + Posesivo + best, go out of + Posesivo + way to + Infinitivo, do + Posesivo + best, exert + effort, try + Posesivo + heart out, give + Posesivo + best, take + (great) pains to.
    * esforzarse por conseguir = strive for, work toward(s).
    * esforzarse por lograr = strive for.
    * * *
    = put forth + effort, put forth + energy, strive, strain, labour [labor, -USA], toil, struggle, work + hard, slave away, try + hard.

    Ex: Because of this human characteristic of dislike of work, most people must be coerced, controlled, directed, threatened with punishment to get them to put forth adequate effort.

    Ex: The goal may be of little value or of high scientific or cultural significance, but energy is put forth to accomplish a task.
    Ex: The abstractor must resist the temptation to use long sentences in striving to avoid repetition.
    Ex: His small foreign-made car strained with the added burden of an interior packed to capacity with personal belongings and a heavily laden U-Haul trailor attached to the rear.
    Ex: So we see many wits and ingenuities lying scattered up and down the world, whereof some are now labouring to do what is already done and puzzling themselves to reinvent what is already invented.
    Ex: His novels reflect the story of the spirit of man, undaunted and ceaselessly toiling and achieving ever higher levels of culture.
    Ex: The chemist, struggling with the synthesis of an organic compound, has all the chemical literature before him in his laboratory.
    Ex: Not only are the standards written, but there is a body called the Peer Council which works very hard at enforcing the standards.
    Ex: Anyone who's spoken to me recently is probably aware that on most nights I'm up slaving away to the wee hours of the morning on my project.
    Ex: Over the years the profession has tried hard to ignore the steady stream of library school closings.
    * esforzarse al máximo = do + Posesivo + utmost, stretch + Reflexivo, stretch + Nombre + to the limit, give + Posesivo + utmost, lean over + backwards, work + hard, give + Posesivo + best.
    * esforzarse por = endeavour [endeavor, -USA], try + Posesivo + best, go out of + Posesivo + way to + Infinitivo, do + Posesivo + best, exert + effort, try + Posesivo + heart out, give + Posesivo + best, take + (great) pains to.
    * esforzarse por conseguir = strive for, work toward(s).
    * esforzarse por lograr = strive for.

    * * *

    ■esforzarse verbo reflexivo to make an effort [por, to]: se esfuerza por ser agradable, he takes pains to be pleasant
    ' esforzarse' also found in these entries:
    Spanish:
    afanarse
    - aplicarse
    - desvivirse
    - esmerarse
    - pelear
    - pujar
    - sudar
    - trabajarse
    - empeñar
    - esforzar
    - matar
    English:
    all-out
    - buck up
    - effort
    - exert
    - flog
    - pain
    - peer
    - seek
    - strain
    - strive
    - endeavor
    - try
    - utmost
    * * *
    vpr
    to make an effort;
    tienes que esforzarte más si quieres aprobar you'll have to make more of an effort if you want to pass;
    nos esforzamos, pero fue imposible ganarlos we tried very hard, but they were impossible to beat;
    no te esfuerces, no puede oírte don't bother (shouting), she can't hear you;
    se esforzaron enormemente en la tarea they put a huge amount of effort into the task;
    esforzarse en o [m5] por hacer algo to make an effort to do sth;
    me esforcé por ayudarlos I made a real effort o did my best to help them;
    nos hemos esforzado mucho por ti we've made a real effort for you, we've really put ourselves out for you;
    se esforzó en contener las lágrimas she tried hard to hold back the tears
    * * *
    v/r make an effort, try hard
    * * *
    vr
    : to make an effort
    * * *
    esforzarse vb to try hard [pt. & pp. tried] / to work hard
    se esforzó mucho he tried very hard / he worked very hard

    Spanish-English dictionary > esforzarse

  • 5 Abel, Sir Frederick August

    [br]
    b. 17 July 1827 Woolwich, London, England
    d. 6 September 1902 Westminster, London, England
    [br]
    English chemist, co-inventor of cordite find explosives expert.
    [br]
    His family came from Germany and he was the son of a music master. He first became interested in science at the age of 14, when visiting his mineralogist uncle in Hamburg, and studied chemistry at the Royal Polytechnic Institution in London. In 1845 he became one of the twenty-six founding students, under A.W.von Hofmann, of the Royal College of Chemistry. Such was his aptitude for the subject that within two years he became von Hermann's assistant and demonstrator. In 1851 Abel was appointed Lecturer in Chemistry, succeeding Michael Faraday, at the Royal Military Academy, Woolwich, and it was while there that he wrote his Handbook of Chemistry, which was co-authored by his assistant, Charles Bloxam.
    Abel's four years at the Royal Military Academy served to foster his interest in explosives, but it was during his thirty-four years, beginning in 1854, as Ordnance Chemist at the Royal Arsenal and at Woolwich that he consolidated and developed his reputation as one of the international leaders in his field. In 1860 he was elected a Fellow of the Royal Society, but it was his studies during the 1870s into the chemical changes that occur during explosions, and which were the subject of numerous papers, that formed the backbone of his work. It was he who established the means of storing gun-cotton without the danger of spontaneous explosion, but he also developed devices (the Abel Open Test and Close Test) for measuring the flashpoint of petroleum. He also became interested in metal alloys, carrying out much useful work on their composition. A further avenue of research occurred in 1881 when he was appointed a member of the Royal Commission set up to investigate safety in mines after the explosion that year in the Sealham Colliery. His resultant study on dangerous dusts did much to further understanding on the use of explosives underground and to improve the safety record of the coal-mining industry. The achievement for which he is most remembered, however, came in 1889, when, in conjunction with Sir James Dewar, he invented cordite. This stable explosive, made of wood fibre, nitric acid and glycerine, had the vital advantage of being a "smokeless powder", which meant that, unlike the traditional ammunition propellant, gunpowder ("black powder"), the firer's position was not given away when the weapon was discharged. Although much of the preliminary work had been done by the Frenchman Paul Vieille, it was Abel who perfected it, with the result that cordite quickly became the British Army's standard explosive.
    Abel married, and was widowed, twice. He had no children, but died heaped in both scientific honours and those from a grateful country.
    [br]
    Principal Honours and Distinctions
    Grand Commander of the Royal Victorian Order 1901. Knight Commander of the Most Honourable Order of the Bath 1891 (Commander 1877). Knighted 1883. Created Baronet 1893. FRS 1860. President, Chemical Society 1875–7. President, Institute of Chemistry 1881–2. President, Institute of Electrical Engineers 1883. President, Iron and Steel Institute 1891. Chairman, Society of Arts 1883–4. Telford Medal 1878, Royal Society Royal Medal 1887, Albert Medal (Society of Arts) 1891, Bessemer Gold Medal 1897. Hon. DCL (Oxon.) 1883, Hon. DSc (Cantab.) 1888.
    Bibliography
    1854, with C.L.Bloxam, Handbook of Chemistry: Theoretical, Practical and Technical, London: John Churchill; 2nd edn 1858.
    Besides writing numerous scientific papers, he also contributed several articles to The Encyclopaedia Britannica, 1875–89, 9th edn.
    Further Reading
    Dictionary of National Biography, 1912, Vol. 1, Suppl. 2, London: Smith, Elder.
    CM

    Biographical history of technology > Abel, Sir Frederick August

  • 6 Daniell, John Frederick

    SUBJECT AREA: Electricity
    [br]
    b. 12 March 1790 London, England
    d. 13 March 1845 London, England
    [br]
    English chemist, inventor of the Daniell primary electric cell.
    [br]
    With an early bias towards science, Daniell's interest in chemistry was formed when he joined a relative's sugar-refining business. He formed a lifelong friendship with W.T.Brande, Professor of Chemistry at the Royal Institution, and together they revived the journal of the Royal Institution, to which Daniell submitted many of his early papers on chemical subjects. He made many contributions to the science of meteorology and in 1820 invented a hydrometer, which became widely used and gave precision to the measurement of atmospheric moisture. As one of the originators of the Society for Promoting Useful Knowledge, Daniell edited several of its early publications. His work on crystallization established his reputation as a chemist and in 1831 he was appointed the first Professor of Chemistry at King's College, London, where he was largely responsible for establishing its department of applied science. He was also involved in the Chemical Society of London and served as its Vice-President. At King's College he began the research into current electricity with which his name is particularly associated. His investigations into the zinc-copper cell revealed that the rapid decline in power was due to hydrogen gas being liberated at the positive electrode. Daniell's cell, invented in 1836, employed a zinc electrode in dilute sulphuric acid and a copper electrode in a solution of copper sulphate, the electrodes being separated by a porous membrane, typically an unglazed earthenware pot. He was awarded the Copley Medal of the Royal Society for his invention which avoided the "polarization" of the simple cell and provided a further source of current for electrical research and for commercial applications such as electroplating. Although the high internal resistance of the Daniell cell limited the current and the potential was only 1.1 volts, the voltage was so unchanging that it was used as a reference standard until the 1870s, when J. Lattimer Clark devised an even more stable cell.
    [br]
    Principal Honours and Distinctions
    FRS 1814. Royal Society Rumford Medal 1832, Copley Medal 1837, Royal Medal 1842.
    Bibliography
    1836, "On voltaic combinations", Phil. Transactions of the Royal Society 126:107–24, 125–9 (the first report of his experiments).
    Further Reading
    Obituary, 1845, Proceedings of the Royal Society, 5:577–80.
    J.R.Partington, 1964, History of Chemistry, Vol. IV, London (describes the Daniell cell and his electrical researches).
    B.Bowers, 1982, History of Electric Light and Power, London.
    GW

    Biographical history of technology > Daniell, John Frederick

  • 7 Voelcker, John Augustus

    [br]
    b. 24 June 1854 Cirencester, England
    d. 1937 England
    [br]
    English agricultural chemist.
    [br]
    John Augustus Voelcker, as the son of Dr John Christopher Voelcker, grew up in an atmosphere of scientific agriculture and would have had contact with the leading agriculturists of the day. He was educated at University College School and then University College, London, where he obtained both a BA and a BSc Following in his father's footsteps, he studied for his PhD at Giessen University in Germany. At college he enjoyed athletics, an interest he was to pursue for the rest of his life. He decided to take up agricultural chemistry and was to succeed to all the public offices once held by his father, from whom he also took over the directorship of Woburn Farm. The experimental farm had been started in 1876 and was used to study the residual effects of chemicals in the soil. The results of these studies were used as the basis for compensation awards to tenant farmers giving up their farms. Voelcker broadened the range of studies to include trace elements in the soil, but by 1921 the Royal Agricultural Society of England had decided to give up the farm. This was a blow to Voelcker and occurred just before experiments elsewhere highlighted the importance of these elements to healthy plant growth. He continued the research at his own expense until the Rothampsted Experimental Station took over the farm in 1926. Aside from his achievements in Britain, Voelcker undertook a study tour of India in 1890, the report on which led to the appointment of an Agricultural Chemist, and the establishment of a scientific service for the Indian subcontinent.
    [br]
    Principal Honours and Distinctions
    President, Royal Society of Public Analysts. Member of Council, Chemical Society, and Institute of Chemistry. Chairman, Farmers' Club.
    Bibliography
    Most of his publications were in the Journal of the Royal Agricultural Society of England, for which he wrote an annual report, and in another series of reports relating to Woburn Farm. The Improvements of Indian Agriculture was the result of his tour in 1890.
    Further Reading
    Sir E.John Russell, A History of Agricultural Science in Great Britain.
    AP

    Biographical history of technology > Voelcker, John Augustus

  • 8 Mond, Ludwig

    SUBJECT AREA: Chemical technology
    [br]
    b. 7 March 1839 Cassel, Germany
    d. 11 December 1909 London, England
    [br]
    German (naturalized English) industrial chemist.
    [br]
    Born into a prosperous Jewish merchant family, Mond studied at the Polytechnic in Cassel and then under the distinguished chemists Hermann Kolbe at Marburg and Bunsen at Heidelberg from 1856. In 1859 he began work as an industrial chemist in various works in Germany and Holland. At this time, Mond was pursuing his method for recovering sulphur from the alkali wastes in the Leblanc soda-making process. Mond came to England in 1862 and five years later settled permanently, in partnership with John Hutchinson \& Co. at Widnes, to perfect his process, although complete success eluded him. He became a naturalized British subject in 1880.
    In 1872 Mond became acquainted with Ernest Solvay, the Belgian chemist who developed the ammonia-soda process which finally supplanted the Leblanc process. Mond negotiated the English patent rights and set up the first ammoniasoda plant in England at Winnington in Cheshire, in partnership with John Brunner. After overcoming many difficulties by incessant hard work, the process became a financial success and in 1881 Brunner, Mond \& Co. was formed, for a time the largest alkali works in the world. In 1926 the company merged with others to form Imperial Chemical Industries Ltd (ICI). The firm was one of the first to adopt the eight-hour day and to provide model dwellings and playing fields for its employees.
    From 1879 Mond took up the production of ammonia and this led to the Mond producer-gas plant, patented in 1883. The process consisted of passing air and steam over coal and coke at a carefully regulated temperature. Ammonia was generated and, at the same time, so was a cheap and useful producer gas. Mond's major discovery followed the observation in 1889 that carbon monoxide could combine with nickel in its ore at around 60°C to form a gaseous compound, nickel carbonyl. This, on heating to a higher temperature, would then decompose to give pure nickel. Mond followed up this unusual way of producing and purifying a metal and by 1892 had succeeded in setting up a pilot plant to perfect a large-scale process and went on to form the Mond Nickel Company.
    Apart from being a successful industrialist, Mond was prominent in scientific circles and played a leading role in the setting up of the Society of Chemical Industry in 1881. The success of his operations earned him great wealth, much of which he donated for learned and charitable purposes. He formed a notable collection of pictures which he bequeathed to the National Gallery.
    [br]
    Principal Honours and Distinctions
    FRS 1891.
    Bibliography
    1885, "On the origin of the ammonia-soda process", Journal of the Society of Chemical Industry 4:527–9.
    1895. "The history of the process of nickel extraction", Journal of the Society of Chemical Industry 14:945–6.
    Further Reading
    J.M.Cohen, 1956, The Life of Ludwig Mond, London: Methuen. Obituary, 1918, Journal of the Chemical Society 113:318–34.
    F.C.Donnan, 1939, Ludwig Mond 1839–1909, London (a valuable lecture).
    LRD

    Biographical history of technology > Mond, Ludwig

  • 9 Wollaston, William Hyde

    SUBJECT AREA: Metallurgy
    [br]
    b. 6 August 1766 East Dereham, Norfolk, England
    d. 22 December 1828 London, England
    [br]
    English chemist and metallurgist who discovered palladium and rhodium, pioneer in the fabrication of platinum.
    [br]
    Wollaston qualified in medicine at Cambridge University but gave up his practice in 1800 to devote himself to chemistry and metallurgy, funded from the profits from making malleable platinum. In partnership with Smithson Tennant, a friend from his Cambridge days, he worked on the extraction of platinum by dissolving it in aqua regia. In 1802 he found that in addition to platinum the solution contained a new metal, which he named palladium. Two years later he identified another new metal, rhodium.
    Wollaston developed a method of forming platinum by means of powder metallurgy and was the first to produce malleable and ductile platinum on a commercial scale. He produced platinum vessels for sulphuric acid manufacture and scientific apparatus such as crucibles. He devised an elegant method for forming fine platinum wire. He also applied his inventive talents to improving scientific apparatus, including the sextant and microscope and a reflecting goniometer for measuring crystal angles. In 1807 he was appointed Joint Secretary of the Royal Society with Sir Humphry Davy, which entailed a heavy workload and required them to referee all the papers submitted to the Society for publication.
    Wollaston's output of platinum began to decline after 1822. Due to ill health he ceased business operations in 1828 and at last made public the details of his secret platinum fabrication process. It was fully described in the Bakerian Lecture he delivered to the Royal Society on 28 November 1828, shortly before his death.
    [br]
    Principal Honours and Distinctions
    FRS 1793.
    Bibliography
    His scientific papers were published in various journals, nearly all listed in the Royal Society Catalogue of Scientific Papers.
    Further Reading
    There is no good general biography, the best general account being the entry in
    Dictionary of Scientific Biography.
    D.McDonald, 1960, A History of Platinum from the Earliest Times to the Eighteen- Eighties, London (provides a good discussion of his work on platinum).
    M.E.Weeks, 1939, "The discovery of the elements", Journal of Chemical Education: 184–5.
    ASD

    Biographical history of technology > Wollaston, William Hyde

  • 10 Faraday, Michael

    SUBJECT AREA: Electricity
    [br]
    b. 22 September 1791 Newington, Surrey, England
    d. 25 August 1867 London, England
    [br]
    English physicist, discoverer of the principles of the electric motor and dynamo.
    [br]
    Faraday's father was a blacksmith recently moved south from Westmorland. The young Faraday's formal education was limited to attendance at "a Common Day School", and then he worked as an errand boy for George Riebau, a bookseller and bookbinder in London's West End. Riebau subsequently took him as an apprentice bookbinder, and Faraday seized every opportunity to read the books that came his way, especially scientific works.
    A customer in the shop gave Faraday tickets to hear Sir Humphry Davy lecturing at the Royal Institution. He made notes of the lectures, bound them and sent them to Davy, asking for scientific employment. When a vacancy arose for a laboratory assistant at the Royal Institution, Davy remembered Faraday, who he took as his assistant on an 18- month tour of France, Italy and Switzerland (despite the fact that Britain and France were at war!). The tour, and especially Davy's constant company and readiness to explain matters, was a scientific education for Faraday, who returned to the Royal Institution as a competent chemist in his own right. Faraday was interested in electricity, which was then viewed as a branch of chemistry. After Oersted's announcement in 1820 that an electric current could affect a magnet, Faraday devised an arrangement in 1821 for producing continuous motion from an electric current and a magnet. This was the basis of the electric motor. Ten years later, after much thought and experiment, he achieved the converse of Oersted's effect, the production of an electric current from a magnet. This was magneto-electric induction, the basis of the electric generator.
    Electrical engineers usually regard Faraday as the "father" of their profession, but Faraday himself was not primarily interested in the practical applications of his discoveries. His driving motivation was to understand the forces of nature, such as electricity and magnetism, and the relationship between them. Faraday delighted in telling others about science, and studied what made a good scientific lecturer. At the Royal Institution he introduced the Friday Evening Discourses and also the Christmas Lectures for Young People, now televised in the UK every Christmas.
    [br]
    Bibliography
    1991, Curiosity Perfectly Satisfyed. Faraday's Travels in Europe 1813–1815, ed. B.Bowers and L.Symons, Peter Peregrinus (Faraday's diary of his travels with Humphry Davy).
    Further Reading
    L.Pearce Williams, 1965, Michael Faraday. A Biography, London: Chapman \& Hall; 1987, New York: Da Capo Press (the most comprehensive of the many biographies of Faraday and accounts of his work).
    For recent short accounts of his life see: B.Bowers, 1991, Michael Faraday and the Modern World, EPA Press. G.Cantor, D.Gooding and F.James, 1991, Faraday, Macmillan.
    J.Meurig Thomas, 1991, Michael Faraday and the Royal Institution, Adam Hilger.
    BB

    Biographical history of technology > Faraday, Michael

  • 11 Caro, Heinrich

    [br]
    b. 13 February 1834 Poznan, Poland
    d. 11 October 1911 Dresden, Germany
    [br]
    German dyestuffi chemist.
    [br]
    Caro received vocational training as a dyer at the Gewerbeinstitut in Berlin from 1852, at the same time attending chemistry lectures at the university there. In 1855 he was hired as a colourist by a firm of calico printers in Mulheim an der Ruhr, where he was able to demonstrate the value of scientific training in solving practical problems. Two years later, the year after Perkin's discovery of aniline dyes, he was sent to England in order to learn the latest dyeing techniques. He took up a post an analytical chemist with the chemical firm Roberts, Dale \& Co. in Manchester; after finding a better way of synthesizing Perkin's mauve, he became a partner in the business. Caro was able to enlarge both his engineering experience and his chemical knowledge there, particularly by studying Hofmann's researches on the aniline dyes. He made several discoveries, including induline, Bismark brown and Martius yellow.
    Like other German chemists, however, he found greater opportunities opening up in Germany, and in 1866 he returned to take up a post in Bunsen's laboratory in Heidelberg. In 1868 Caro obtained the important directorship of Badische Anilin-Soda- Fabrik (BASF), the first true industrial research organization and leading centre of dyestuffs research. A steady stream of commercial successes followed. In 1869, after Graebe and Liebermann had showed him their laboratory synthesis of the red dye alizarin, Caro went on to develop a cheaper and commercially viable method. During the 1870s he collaborated with Adolf von Baeyer to make methylene blue and related dyes, and then went on to the azo dyes. His work on indigo was important, but was not crowned with commercial success; that came in 1897 when his successor at BASF discovered a suitable process for producing indigo on a commercial scale. Caro had resigned his post in 1889, by which time he had made notable contributions to German supremacy in the fast-developing dyestuffs industry.
    [br]
    Further Reading
    A.Bernthsen, 1912, obituary, Berichte derDeut
    schen Chemischen Gesellschaft, 45; 1,987–2,042 (a substantial obituary).
    LRD

    Biographical history of technology > Caro, Heinrich

  • 12 Carothers, Wallace Hume

    [br]
    b. 27 April 1896 Burlington, Iowa, USA
    d. 29 April 1937 Philadelphia, Pennsylvania, USA
    [br]
    American chemist, inventor of nylon.
    [br]
    After graduating in chemistry, Carothers embarked on academic research at several universities, finally at Harvard University. His earliest published papers, from 1923, heralded the brilliance and originality of his later work. In 1928, Du Pont de Nemours persuaded him to forsake the academic world to lead their new organic-chemistry group in a programme of fundamental research at their central laboratories at Wilmington, Delaware. The next nine years were extraordinarily productive, yielding important contributions to theoretical organic chemistry and the foundation of two branches of chemical industry, namely the production of synthetic rubber and of wholly synthetic fibres.
    Carothers began work on high molecular weight substances yielding fibres and introduced polymerization by condensation: polymerization by addition was already known. He developed a clear understanding of the relation between the repeating structural units in a large molecule and its physical chemical properties. In 1931, Carothers found that chloroprene could be polymerized much faster than isoprene, the monomer in natural rubber. This process yielded polychloroprene or neoprene, a synthetic rubber with improved properties. Manufacture began the following year, and the material has continued to be used for speciality rubbers.
    There followed many publications announcing new condensations polymers. On 2 January 1935, he obtained a patent for the formation of new polyamides, including one from adipic acid and hexamethylenediamene. After four years of development work, which cost Du Pont some $27 million, this new polyamide, or nylon, reached the stage of commercial production, beginning on 23 October 1938. Nylon stockings appeared the following year and 64 million were sold during the first twelve months. However, Carothers saw none of this spectacular success: he had died by his own hand in 1937, after a long history of gradually intensifying depression.
    [br]
    Principal Honours and Distinctions
    Elected to the National Academy of Science 1936 (he was the first industrial organic chemist to be so honoured).
    Bibliography
    H.M.Whitby and G.S.Whitby, 1940, Collected Papers of Wallace H.Carothers on Polymerisation, New York.
    Further Reading
    R.Adams, 1939, memoir, Biographical Memoirs of the National Academy of Sciences 20:293–309 (includes a complete list of Carothers's sixty-two scientific papers and most of his sixty-nine US patents).
    LRD

    Biographical history of technology > Carothers, Wallace Hume

  • 13 Hurter, Ferdinand

    [br]
    b. 15 March 1844 Schaffhausen, Switzerland
    d. 5 March 1898
    [br]
    Swiss chemist who, with Vero Charles Driffield, established the basis of modern sensitometry in England.
    [br]
    Ferdinand Hurter worked for three years as a dyer's apprentice before entering the Polytechnic in Zurich; he transferred to Heidelberg, where he graduated in 1866. A year later he secured an appointment as a chemist for the British alkali manufacturing company, Gaskell, Deacon \& Co. of Widnes, Cheshire. In 1871 he was joined at the company by the young engineer Vero Charles Driffield, who was to become his co-worker. Driffield had worked for a professional photographer before beginning his engineering apprenticeship and it was in 1876, when Hurter sought to draw on this experience, that the partnership began. At this time the speed of the new gelatine halide dry plates was expressed in terms of the speed of a wet-collodion plate, an almost worthless concept as the speed of a collodion plate was itself variable. Hurter and Driffield sought to place the study of photographic emulsions on a more scientific basis. They constructed an actinometer to measure the intensity of sunlight and in 1890 published the first of a series of papers on the sensitivity of photographic plates. They suggested methods of exposing a plate to lights of known intensities and measuring the densities obtained on development. They were able to plot curves based on density and exposure which became known as the H \& D curve. Hurter and Driffield's work allowed them to express the characteristics of an emulsion with a nomenclature which was soon adopted by British plate manufacturers. From the 1890s onwards most British-made plates were identified with H \& D ratings. Hurter and Driffield's partnership was ended by the former's death in 1898.
    [br]
    Further Reading
    W.B.Ferguson (ed.), 1920, The Photographic Researches of Ferdinand Hurter \& Vero C. Driffield, London: Royal Photographic Society reprinted in facsimile, with a new introd. by W.Clark, 1974, New York (a memorial volume; the most complete account of Hurter and Driffield's work, includes a reprint of all their published papers).
    JW

    Biographical history of technology > Hurter, Ferdinand

  • 14 Liebig, Justus von

    [br]
    b. 12 May 1803 Darmstadt, Germany
    d. 18 April 1873 Munich, Germany
    [br]
    German chemist, pioneer in the training of chemists and in agricultural chemistry.
    [br]
    As the son of a pharmacist, Lei big early acquired an interest in chemistry. In 1822 he pursued his chemical studies in Paris under Joseph Louis Gay-Lussac (1778–1850), one of the leading chemists of the time. Three years later he became Professor of Chemistry in the small university of Giessen, near Frankfurt, where he remained for over thirty years. It was there that he established his celebrated laboratory for training in practical chemistry. The laboratory itself and the instruction given by Liebig were a model for the training of chemists throughout Europe and a steady stream of well-qualified chemists issued forth from Giessen. It was the supply of well-trained chemists that proved to be the basis for Germany's later success in industrial chemistry. The university now bears Liebig's name, and the laboratory has been preserved as a museum in the same state that it was in after the extensions of 1839. Liebig's many and important researches into chemical theory and organic chemistry lie outside the scope of this Dictionary. From 1840 he turned to the chemistry of living things. In agriculture, he stressed the importance of fertilizers containing potassium and phosphorus, although he underrated the role of nitrogen. Liebig thereby exerted a powerful influence on the movement to provide agriculture with a scientific basis.
    [br]
    Further Reading
    C.Paoloni, 1968, Justus von Liebig: eine Bibliographie sämtlicher Veröffentlichungen, Heidelberg: Carl Winter (includes a complete list of Liebig's papers and books, published collections of his letters and a list of secondary works about him).
    A.W.Hofmann, 1876, The Life Work of Liebig (Faraday Lecture), London (a valuable reference).
    J.R.Partington, 1964, A History of Chemistry, Vol. 4, London (a well-documented account of his work).
    F.R.Moulton, 1942, Liebig and After Liebig: A Century of Progress in Agricultural Chemistry, Washington, DC: American Association for the Advancement of Science, publication 18 (for Liebig's work in agricultural chemistry).
    J.B.Morrell, 1972, "The chemist breeders", Ambix 19:1–47 (for information about Liebig's laboratory).
    LRD

    Biographical history of technology > Liebig, Justus von

  • 15 Pasteur, Louis

    [br]
    b. 27 December 1822 Dole, France
    d. 28 September 1895 Paris, France
    [br]
    French chemist, founder of stereochemistry, developer of microbiology and immunology, and exponent of the germ theory of disease.
    [br]
    Sustained by the family tanning business in Dole, near the Swiss border, Pasteur's school career was undistinguished, sufficing to gain him entry into the teacher-training college in Paris, the Ecole Normale, There the chemical lectures by the great organic chemist J.B.A.Dumas (1800–84) fired Pasteur's enthusiasm for chemistry which never left him. Pasteur's first research, carried out at the Ecole, was into tartaric acid and resulted in the discovery of its two optically active forms resulting from dissymmetrical forms of their molecules. This led to the development of stereochemistry. Next, an interest in alcoholic fermentation, first as Professor of Chemistry at Lille University in 1854 and then back at the Ecole from 1857, led him to deny the possibility of spontaneous generation of animal life. Doubt had previously been cast on this, but it was Pasteur's classic research that finally established that the putrefaction of broth or the fermentation of sugar could not occur spontaneously in sterile conditions, and could only be caused by airborne micro-organisms. As a result, he introduced pasteurization or brief, moderate heating to kill pathogens in milk, wine and other foods. The suppuration of wounds was regarded as a similar process, leading Lister to apply Pasteur's principles to revolutionize surgery. In 1860, Pasteur himself decided to turn to medical research. His first study again had important industrial implications, for the silk industry was badly affected by diseases of the silkworm. After prolonged and careful investigation, Pasteur found ways of dealing with the two main infections. In 1868, however, he had a stroke, which prevented him from active carrying out experimentation and restricted him to directing research, which actually was more congenial to him. Success with disease in larger animals came slowly. In 1879 he observed that a chicken treated with a weakened culture of chicken-cholera bacillus would not develop symptoms of the disease when treated with an active culture. He compared this result with Jenner's vaccination against smallpox and decided to search for a vaccine against the cattle disease anthrax. In May 1881 he staged a demonstration which clearly showed the success of his new vaccine. Pasteur's next success, finding a vaccine which could protect against and treat rabies, made him world famous, especially after a person was cured in 1885. In recognition of his work, the Pasteur Institute was set up in Paris by public subscription and opened in 1888. Pasteur's genius transcended the boundaries between science, medicine and technology, and his achievements have had significant consequences for all three fields.
    [br]
    Bibliography
    Pasteur published over 500 books, monographs and scientific papers, reproduced in the magnificent Oeuvres de Pasteur, 1922–39, ed. Pasteur Vallery-Radot, 7 vols, Paris.
    Further Reading
    P.Vallery-Radot, 1900, La vie de Louis Pasteur, Paris: Hachette; 1958, Louis Pasteur. A Great Life in Brief, English trans., New York (the standard biography).
    E.Duclaux, 1896, Pasteur: Histoire d ' un esprit, Paris; 1920, English trans., Philadelphia (perceptive on the development of Pasteur's thought in relation to contemporary science).
    R.Dobos, 1950, Louis Pasteur, Free Lance of Science, Boston, Mass.; 1955, French trans.
    LRD

    Biographical history of technology > Pasteur, Louis

  • 16 camino

    m.
    1 path, track (sendero).
    camino de Santiago Milky Way; (astronomy) = pilgrimage route to Santiago de Compostela (religion)
    camino trillado well-trodden path
    2 way.
    el camino de la estación the way to the station
    camino de on the way to
    está camino de la capital it's on the way to the capital
    a estas horas ya estarán en camino they'll be on their way by now
    me pilla de camino it's on my way
    en el o de camino on the way
    por este camino this way
    3 journey (viaje).
    nos espera un largo camino we have a long journey ahead of us
    ponerse en camino to set off
    4 road, footpath, pathway, track.
    5 cart track, cart road.
    pres.indicat.
    1st person singular (yo) present indicative of spanish verb: caminar.
    * * *
    1 (vía) path, track
    2 (ruta) way, route
    3 (viaje) journey
    \
    a medio camino half-way
    abrir camino to clear the way (a, for)
    abrir el camino to clear the way (a, for)
    abrirse camino to make one's way
    abrirse camino en la vida to get on in life
    coger de camino / pillar de camino to be on the way
    estar en camino to be on the way
    ir camino de to be on one's way to
    ir por (el) buen/mal camino figurado to be on the right/wrong track
    llevar buen camino to be on the right track
    llevar camino de to be on the way to, be heading for, look set to
    ponerse en camino to set off (on a journey)
    camino de herradura bridle path
    camino forestal forest track
    el camino del éxito figurado the road to success
    * * *
    noun m.
    1) road, path, track
    2) way
    * * *
    SM
    1) [sin asfaltar] track; (=sendero) path; (=carretera) road

    Caminos, Canales y Puertos — (Univ) Civil Engineering

    camino de ingresos, camino de peaje — toll road

    camino de rosas, la vida no es ningún camino de rosas — life's no bed of roses

    camino forestal — forest track; [para paseos] forest trail

    = Camino de Santiago

    camino trillado, caminos turísticos no trillados — tourist routes that are off the beaten track

    experimentan con nuevas técnicas, huyen de los caminos trillados — they are experimenting with new techniques and avoiding conventional approaches o the well-trodden paths

    este escritor ha recorrido los caminos trillados de sus antecesores — this writer has been down the well-trodden paths followed by his predecessors

    2) (=ruta)
    a) (lit) way, route; (=viaje) journey

    ¿sabes el camino a su casa? — do you know the way to his house?

    ¿cuánto camino hay de aquí a San José? — how far is it from here to San José?

    • abrirse camino entre la multitud — to make one's way through the crowd

    • de camino a, lo puedo recoger de camino al trabajo — I can collect it on my way to work

    • echar camino adelante — to strike out

    • en el camino — on the way, en route

    tienen dos niños, y otro en camino — they have two children, and another on the way

    • a medio camino — halfway (there)

    a medio camino paramos para comer — halfway there, we stopped to eat

    • se quedaron a mitad de camino — they only got halfway (there)

    b) (fig) (=medio) path, course

    • el camino a seguir, yo te explico el camino a seguir — I'll tell you the way o route

    allanar el camino —

    ir camino de —

    traer a algn por buen camino — (=orientar) to put sb on the right track o road; (=desengañar) to set sb straight

    quedarse en el camino —

    un 70% sacó el diploma y el resto se quedó en el camino — 70 per cent of them got the diploma, the rest didn't make it

    no me fijo en mis rivales, yo sigo por mi camino — I don't take any notice of what my rivals are doing, I just do my own thing

    3) (Inform) path
    4) And, Cono Sur (=alfombra, tapete) runner, strip of carpet o matting
    CAMINO DE SANTIAGO The Camino de Santiago is a medieval pilgrim route stretching from the Pyrenees to Santiago de Compostela in northwest Spain, where tradition has it that the body of Saint James the Apostle (Spain's patron saint) is buried. Those who had made the long, dangerous journey returned proudly wearing on their hat or cloak the venera or concha (scallop shell) traditionally associated with this pilgrimage - Saint James' body had reportedly been found covered in scallops. Today this symbolic shell can still be seen all along the Camino de Santiago, carved on ancient buildings and painted on modern-day road signs marking the historic route for the benefit of tourists and pilgrims. In astronomy the Camino de Santiago is another name for the Vía Láctea (Milky Way), hence the title of Buñuel's famous satirical film about the route to Compostela.
    * * *
    1) ( de tierra) track; ( sendero) path; ( en general) road

    abrir nuevos caminos — to break new o fresh ground

    allanar or preparar or abrir el camino — to pave the way, prepare the ground

    el camino trillado — the well-worn o well-trodden path

    la vida no es un camino de rosas — life is no bed of roses

    tener el camino trillado: tenía el camino trillado he'd had the ground prepared for him; todos los caminos llevan or conducen a Roma — all roads lead to Rome

    2)
    a) (ruta, dirección) way

    me salieron al camino — asaltantes they blocked my path o way; amigos/niños they came out to meet me

    el camino a la fama — the road o path to fame

    se me fue por mal camino or por el otro camino — it went down the wrong way

    abrir camino a algo — to clear the way for something

    abrirse camino — to make one's way

    buen/mal camino: este niño va por mal camino or lleva mal camino this boy's heading for trouble; ibas por or llevabas buen camino pero te equivocaste you were on the right track but you made a mistake; las negociaciones van por or llevan muy buen camino the negotiations are going extremely well; llevar a alguien por mal camino to lead somebody astray; cruzarse en el camino de alguien: superó todos los obstáculos que se le cruzaron en el camino he overcame all the problems that arose; errar el camino to be in the wrong job o the wrong line of work; tirar por el camino de en medio — to take the middle path

    b) (trayecto, viaje)

    llevamos 300 kms/una hora de camino — we've done 300 kms/been traveling for an hour

    todavía estamos a o nos quedan dos horas de camino — we still have two hours to go

    paramos a mitad de camino or a medio camino — we stopped halfway

    cortar o acortar camino — to take a shortcut

    a mitad de or a medio camino — halfway through

    camino de/a: me encontré con él camino del or al mercado I ran into him on the o on my way to the market; ya vamos camino del invierno winter's on the way o on its way; llevar or ir camino de algo: una tradición que va camino de desaparecer a tradition which looks set to disappear; de camino on the way to; pilla de camino it's on the way; me queda de camino I pass it on my way; de camino a on the way; está de camino a la estación it is on the way to the station; en el camino or de camino al trabajo on my/his/her way o the way to work; en camino on the way; tiene un niño y otro en camino she has one child and another on the way; deben estar ya en camino they must be on their way already; por el camino — on the way

    •
    * * *
    = avenue, path, road, route, footpath, lane, pathway, way.
    Ex. In the attempt to match the above criteria, there are two fundamentally distinct avenues to the construction of the schedules of a classification scheme.
    Ex. It can be in only one place, unless duplicates are used; one has to have rules as to which path will locate it, and the rules are cumbersome.
    Ex. Use of Woolston Library has declined slightly: the area is isolated by the River Itchen, a busy main road, and a natural escarpment.
    Ex. Each packet includes the address of the final destination, and the packets travel separately, perhaps taking different routes through the network.
    Ex. Equivalence relationships normally imply the selection of one form as the preferred term, as we have seen, so we make a cross-reference pointing from the non-preferred term to the preferred term: footpaths See Trails; Bovines USE Cattle.
    Ex. The title of the article is 'Changing lanes on the information superhighway: academic libraries and the Internet'.
    Ex. This system automates the scientific task of determining the pathway of steps underlying a chemical reaction.
    Ex. He has chosen self-denial and altruism as the way to follow.
    ----
    * abrir camino a = make + way (for).
    * abrir nuevos caminos = break + new ground, push + Nombre + into new latitudes, break + ground, blaze + trail.
    * abrirse camino = plough through, elbow + Posesivo + way into, elbow into, foist + Posesivo + way into, make + Posesivo + way in the world.
    * abrirse camino (a empujones) = push + Posesivo + way across/into.
    * abrirse camino en el mundo = make + Posesivo + way in the world.
    * abrirse camino en la vida = get on in + life.
    * abrir un camino = chart + direction.
    * al borde del camino = at the roadside.
    * alto en el camino = stopover.
    * a medio camino = halfway [half-way/half way].
    * a mitad de camino = halfway [half-way/half way].
    * a mitad de camino entre... y... = midway between, half way between... and....
    * a mitad de camino entre... y... = astride... and....
    * andar camino trillado = tread + well-worn ground.
    * apartarse del buen camino = go off + the rails, stray from + the straight and narrow.
    * apartarse del camino de la verdad = stray from + the straight and narrow.
    * apartarse de los caminos principales = go + off-road.
    * borde del camino = roadside, wayside.
    * buen camino, el = straight and narrow (path), the.
    * buscar el camino = wind + Posesivo + way.
    * cambiar de opinión a mitad de camino = change + horses in midstream.
    * cambiar de parecer a mitad de camino = change + horses in midstream.
    * cambiar de política a mitad de camino = change + horses in midstream.
    * camino apartado = byway.
    * camino a seguir, el = way forward, the.
    * camino correcto, el = way forward, the.
    * camino de acceso = approach path.
    * camino definido = charted route.
    * camino de herradura = bridle path, bridleway.
    * camino de la verdad, el = straight and narrow (path), the.
    * camino de tierra = dirt track, dirt road.
    * camino elevado = causeway.
    * camino hacia el estrellato = road to stardom.
    * camino hacia la fama = road to stardom.
    * camino largo y difícil = long haul.
    * camino largo y tortuoso = long and winding road.
    * camino lleno de baches = bumpy road.
    * camino más fácil, el = path of least resistance, the.
    * camino muy largo = circuitous route.
    * camino pecuario = cattle lane.
    * camino por recorrer, el = road ahead, the.
    * camino rural = country lane, country road.
    * camino seguro al desastre = blueprint for disaster.
    * camino seguro al éxito = blueprint for success.
    * camino seguro al fracaso = blueprint for failure.
    * camino sin rumbo = the road to nowhere.
    * camino trillado = worn path, beaten road.
    * camino vecinal = country road, minor road, back road.
    * construcción de caminos = road construction.
    * continuar + Posesivo camino = continue on + Posesivo + way.
    * cruce de caminos = crossroads, fork in the road.
    * cruzar en el camino de Alguien = cross + Posesivo + path.
    * cruzársele a Uno en el camino = come + Posesivo + way.
    * de camino = on the way, while we're at it.
    * de camino a = en route for, on + Posesivo + way to, en route to.
    * descanso en el camino = rest stop.
    * desviarse del buen camino = go off + the rails.
    * detener en el camino = waylay.
    * detenerse en el camino = stop along + the way.
    * detenerse en el lado del camino = pull over.
    * el camino a seguir = the way ahead, the way to go.
    * el camino correcto = the way ahead, the way to go.
    * el camino hacia + Nombre + está lleno de + Nombre = the road (to/towards) + Nombre + is paved with + Nombre.
    * el camino hacia + Nombre + está plagado de + Nombre = the road (to/towards) + Nombre + is paved with + Nombre.
    * el camino por recorrer = the way ahead.
    * el camino que lleva a = a/the doorway to.
    * el camino recorrido = the road travelled so far.
    * el camino se hace andando = actions speak louder than words.
    * elegir el camino más fácil = take + the path of least resistance.
    * en camino = on the way.
    * encontrar el camino = wayfinding.
    * encontrar el camino de vuelta = find + Posesivo + way back.
    * en el camino = along the way, en route, in the process.
    * estar a medio camino entre... y... = lie + midway between... and....
    * estar de camino a = be on the road to.
    * estar en camino de = be on the way to.
    * fuera de los caminos trillados = off the beaten track.
    * hacerse camino = foist + Posesivo + way into.
    * hacer una parada en el camino = stop along + the way.
    * hallar el camino de la verdad = think + Posesivo + way to the truth.
    * indicar el camino a seguir = point + the way forward.
    * indicar el camino a seguir para = point + the way to.
    * indicar el camino correcto = point + Nombre + in the right direction.
    * ingeniería de caminos = civil engineering.
    * ingeniero de caminos = civil engineer.
    * ir por buen camino = be on the right track.
    * ir por el buen camino = be right on track.
    * ir por mal camino = be on the wrong track, be headed down the wrong track.
    * junto al camino = by the roadside.
    * lado del camino = wayside.
    * ¡la vida no es un camino de rosas! = the course of true love never did run smooth!.
    * llevar camino de enfrentamiento con = be on a collision course with.
    * llevar por el camino de = lead + Pronombre + down the road to.
    * llevar por el mal camino = lead + astray.
    * llevar por mal camino = mislead.
    * mantener Algo en el buen camino = keep + Nombre + on track.
    * marcar el camino correcto = point + Nombre + in the right direction.
    * mostrar el camino = blaze + the way, light + the way.
    * mostrar el camino a seguir = point + the way forward.
    * mostrar el camino para = point + the way to, show + the way to.
    * no apartarse del buen camino = keep on + the right track.
    * parada en el camino = rest stop, stop along the way.
    * parapeto del camino = road bank.
    * pararse en el lado del camino = pull over.
    * perderse por los caminos secundarios = go + off-road.
    * por buen camino = a step in the right direction.
    * por caminos apartados = off-road.
    * por mal camino = astray.
    * preparar el camino = set + the scene, smooth + the way, open + the way, set + the stage, pave + the path (for/towards/to), pave + the way (for/towards/to), pave + the road (for/towards/to).
    * preparar el camino para = smooth + the path of.
    * quedarse en el camino = fall by + the wayside.
    * retomar el camino = get back on + Posesivo + path.
    * retomar su camino = get back on + track.
    * seguir el buen camino = keep on + the right track, keep on + the straight and narrow.
    * seguir el camino de la verdad = keep on + the straight and narrow.
    * seguir el camino más ético = take + the high ground, take + the high road.
    * seguir este camino = go along + this road.
    * seguir por el buen camino = keep out of + trouble, keep on + the right track.
    * seguir un camino = take + path, take + direction, tread + path, walk + path.
    * seguir un camino diferente = strike out on + a different path.
    * tener mucho camino que recorrer = have + a long way to go.
    * un alto en el camino = a stop on the road, a pit stop on the road.
    * un camino largo y difícil = a long haul.
    * volver a su camino = get back on + track, get back on + Posesivo + path.
    * * *
    1) ( de tierra) track; ( sendero) path; ( en general) road

    abrir nuevos caminos — to break new o fresh ground

    allanar or preparar or abrir el camino — to pave the way, prepare the ground

    el camino trillado — the well-worn o well-trodden path

    la vida no es un camino de rosas — life is no bed of roses

    tener el camino trillado: tenía el camino trillado he'd had the ground prepared for him; todos los caminos llevan or conducen a Roma — all roads lead to Rome

    2)
    a) (ruta, dirección) way

    me salieron al camino — asaltantes they blocked my path o way; amigos/niños they came out to meet me

    el camino a la fama — the road o path to fame

    se me fue por mal camino or por el otro camino — it went down the wrong way

    abrir camino a algo — to clear the way for something

    abrirse camino — to make one's way

    buen/mal camino: este niño va por mal camino or lleva mal camino this boy's heading for trouble; ibas por or llevabas buen camino pero te equivocaste you were on the right track but you made a mistake; las negociaciones van por or llevan muy buen camino the negotiations are going extremely well; llevar a alguien por mal camino to lead somebody astray; cruzarse en el camino de alguien: superó todos los obstáculos que se le cruzaron en el camino he overcame all the problems that arose; errar el camino to be in the wrong job o the wrong line of work; tirar por el camino de en medio — to take the middle path

    b) (trayecto, viaje)

    llevamos 300 kms/una hora de camino — we've done 300 kms/been traveling for an hour

    todavía estamos a o nos quedan dos horas de camino — we still have two hours to go

    paramos a mitad de camino or a medio camino — we stopped halfway

    cortar o acortar camino — to take a shortcut

    a mitad de or a medio camino — halfway through

    camino de/a: me encontré con él camino del or al mercado I ran into him on the o on my way to the market; ya vamos camino del invierno winter's on the way o on its way; llevar or ir camino de algo: una tradición que va camino de desaparecer a tradition which looks set to disappear; de camino on the way to; pilla de camino it's on the way; me queda de camino I pass it on my way; de camino a on the way; está de camino a la estación it is on the way to the station; en el camino or de camino al trabajo on my/his/her way o the way to work; en camino on the way; tiene un niño y otro en camino she has one child and another on the way; deben estar ya en camino they must be on their way already; por el camino — on the way

    •
    * * *
    = avenue, path, road, route, footpath, lane, pathway, way.

    Ex: In the attempt to match the above criteria, there are two fundamentally distinct avenues to the construction of the schedules of a classification scheme.

    Ex: It can be in only one place, unless duplicates are used; one has to have rules as to which path will locate it, and the rules are cumbersome.
    Ex: Use of Woolston Library has declined slightly: the area is isolated by the River Itchen, a busy main road, and a natural escarpment.
    Ex: Each packet includes the address of the final destination, and the packets travel separately, perhaps taking different routes through the network.
    Ex: Equivalence relationships normally imply the selection of one form as the preferred term, as we have seen, so we make a cross-reference pointing from the non-preferred term to the preferred term: footpaths See Trails; Bovines USE Cattle.
    Ex: The title of the article is 'Changing lanes on the information superhighway: academic libraries and the Internet'.
    Ex: This system automates the scientific task of determining the pathway of steps underlying a chemical reaction.
    Ex: He has chosen self-denial and altruism as the way to follow.
    * abrir camino a = make + way (for).
    * abrir nuevos caminos = break + new ground, push + Nombre + into new latitudes, break + ground, blaze + trail.
    * abrirse camino = plough through, elbow + Posesivo + way into, elbow into, foist + Posesivo + way into, make + Posesivo + way in the world.
    * abrirse camino (a empujones) = push + Posesivo + way across/into.
    * abrirse camino en el mundo = make + Posesivo + way in the world.
    * abrirse camino en la vida = get on in + life.
    * abrir un camino = chart + direction.
    * al borde del camino = at the roadside.
    * alto en el camino = stopover.
    * a medio camino = halfway [half-way/half way].
    * a mitad de camino = halfway [half-way/half way].
    * a mitad de camino entre... y... = midway between, half way between... and....
    * a mitad de camino entre... y... = astride... and....
    * andar camino trillado = tread + well-worn ground.
    * apartarse del buen camino = go off + the rails, stray from + the straight and narrow.
    * apartarse del camino de la verdad = stray from + the straight and narrow.
    * apartarse de los caminos principales = go + off-road.
    * borde del camino = roadside, wayside.
    * buen camino, el = straight and narrow (path), the.
    * buscar el camino = wind + Posesivo + way.
    * cambiar de opinión a mitad de camino = change + horses in midstream.
    * cambiar de parecer a mitad de camino = change + horses in midstream.
    * cambiar de política a mitad de camino = change + horses in midstream.
    * camino apartado = byway.
    * camino a seguir, el = way forward, the.
    * camino correcto, el = way forward, the.
    * camino de acceso = approach path.
    * camino definido = charted route.
    * camino de herradura = bridle path, bridleway.
    * camino de la verdad, el = straight and narrow (path), the.
    * camino de tierra = dirt track, dirt road.
    * camino elevado = causeway.
    * camino hacia el estrellato = road to stardom.
    * camino hacia la fama = road to stardom.
    * camino largo y difícil = long haul.
    * camino largo y tortuoso = long and winding road.
    * camino lleno de baches = bumpy road.
    * camino más fácil, el = path of least resistance, the.
    * camino muy largo = circuitous route.
    * camino pecuario = cattle lane.
    * camino por recorrer, el = road ahead, the.
    * camino rural = country lane, country road.
    * camino seguro al desastre = blueprint for disaster.
    * camino seguro al éxito = blueprint for success.
    * camino seguro al fracaso = blueprint for failure.
    * camino sin rumbo = the road to nowhere.
    * camino trillado = worn path, beaten road.
    * camino vecinal = country road, minor road, back road.
    * construcción de caminos = road construction.
    * continuar + Posesivo camino = continue on + Posesivo + way.
    * cruce de caminos = crossroads, fork in the road.
    * cruzar en el camino de Alguien = cross + Posesivo + path.
    * cruzársele a Uno en el camino = come + Posesivo + way.
    * de camino = on the way, while we're at it.
    * de camino a = en route for, on + Posesivo + way to, en route to.
    * descanso en el camino = rest stop.
    * desviarse del buen camino = go off + the rails.
    * detener en el camino = waylay.
    * detenerse en el camino = stop along + the way.
    * detenerse en el lado del camino = pull over.
    * el camino a seguir = the way ahead, the way to go.
    * el camino correcto = the way ahead, the way to go.
    * el camino hacia + Nombre + está lleno de + Nombre = the road (to/towards) + Nombre + is paved with + Nombre.
    * el camino hacia + Nombre + está plagado de + Nombre = the road (to/towards) + Nombre + is paved with + Nombre.
    * el camino por recorrer = the way ahead.
    * el camino que lleva a = a/the doorway to.
    * el camino recorrido = the road travelled so far.
    * el camino se hace andando = actions speak louder than words.
    * elegir el camino más fácil = take + the path of least resistance.
    * en camino = on the way.
    * encontrar el camino = wayfinding.
    * encontrar el camino de vuelta = find + Posesivo + way back.
    * en el camino = along the way, en route, in the process.
    * estar a medio camino entre... y... = lie + midway between... and....
    * estar de camino a = be on the road to.
    * estar en camino de = be on the way to.
    * fuera de los caminos trillados = off the beaten track.
    * hacerse camino = foist + Posesivo + way into.
    * hacer una parada en el camino = stop along + the way.
    * hallar el camino de la verdad = think + Posesivo + way to the truth.
    * indicar el camino a seguir = point + the way forward.
    * indicar el camino a seguir para = point + the way to.
    * indicar el camino correcto = point + Nombre + in the right direction.
    * ingeniería de caminos = civil engineering.
    * ingeniero de caminos = civil engineer.
    * ir por buen camino = be on the right track.
    * ir por el buen camino = be right on track.
    * ir por mal camino = be on the wrong track, be headed down the wrong track.
    * junto al camino = by the roadside.
    * lado del camino = wayside.
    * ¡la vida no es un camino de rosas! = the course of true love never did run smooth!.
    * llevar camino de enfrentamiento con = be on a collision course with.
    * llevar por el camino de = lead + Pronombre + down the road to.
    * llevar por el mal camino = lead + astray.
    * llevar por mal camino = mislead.
    * mantener Algo en el buen camino = keep + Nombre + on track.
    * marcar el camino correcto = point + Nombre + in the right direction.
    * mostrar el camino = blaze + the way, light + the way.
    * mostrar el camino a seguir = point + the way forward.
    * mostrar el camino para = point + the way to, show + the way to.
    * no apartarse del buen camino = keep on + the right track.
    * parada en el camino = rest stop, stop along the way.
    * parapeto del camino = road bank.
    * pararse en el lado del camino = pull over.
    * perderse por los caminos secundarios = go + off-road.
    * por buen camino = a step in the right direction.
    * por caminos apartados = off-road.
    * por mal camino = astray.
    * preparar el camino = set + the scene, smooth + the way, open + the way, set + the stage, pave + the path (for/towards/to), pave + the way (for/towards/to), pave + the road (for/towards/to).
    * preparar el camino para = smooth + the path of.
    * quedarse en el camino = fall by + the wayside.
    * retomar el camino = get back on + Posesivo + path.
    * retomar su camino = get back on + track.
    * seguir el buen camino = keep on + the right track, keep on + the straight and narrow.
    * seguir el camino de la verdad = keep on + the straight and narrow.
    * seguir el camino más ético = take + the high ground, take + the high road.
    * seguir este camino = go along + this road.
    * seguir por el buen camino = keep out of + trouble, keep on + the right track.
    * seguir un camino = take + path, take + direction, tread + path, walk + path.
    * seguir un camino diferente = strike out on + a different path.
    * tener mucho camino que recorrer = have + a long way to go.
    * un alto en el camino = a stop on the road, a pit stop on the road.
    * un camino largo y difícil = a long haul.
    * volver a su camino = get back on + track, get back on + Posesivo + path.

    * * *
    camino Camino de Santiago (↑ camino a1)
    A (de tierra) track; (sendero) path; (en general) road
    sigan por ese camino continue along that path ( o road etc)
    han abierto/hecho un caminito a través del bosque they've opened up/made a path o little track through the wood
    están todos los caminos cortados all the roads are blocked
    abrir nuevos caminos to break new o fresh ground
    allanar or preparar or abrir el camino to pave the way, prepare the ground
    el camino trillado the well-worn o well-trodden path
    la vida no es un camino de rosas life is no bed of roses, life isn't a bowl of cherries
    tener el camino trillado: tenía el camino trillado he'd had the ground prepared for him
    todos los caminos llevan or conducen a Roma: por todos los caminos se va a Roma all roads lead to Rome
    el camino del infierno está empedrado de buenas intenciones the road to hell is paved o strewn with good intentions
    Compuestos:
    bridle path
    towpath
    ( Hist) highway
    ● Caminos, Canales y Puertos
    civil engineering ingeniero
    B
    1 (ruta, dirección) way
    tomamos el camino más corto we took the shortest route o way
    ¿sabes el camino para ir allí? do you know how to get there?, do you know the way there?
    me salieron al camino «asaltantes» they blocked my path o way;
    «amigos/niños» they came out to meet me
    afrontaron todas las dificultades que se les presentaron en el camino they faced up to all the difficulties in their path
    éste es el mejor camino a seguir en estas circunstancias this is the best course to follow in these circumstances
    por ese camino no vas a ninguna parte you won't get anywhere that way o like that
    al terminar la carrera cada cual se fue por su camino after completing their studies they all went their separate ways
    sigue caminos muy diferentes de los trazados por sus predecesores he is taking very different paths from those of his predecessors
    se me fue por mal caminoor por el otro camino it went down the wrong way
    abrir(le) camino (a algo/algn) to clear the way (for sth/sb)
    los vehículos que abrían camino a los corredores the vehicles that were clearing the way for the runners
    abrirse camino to make one's way
    se abrió camino entre la espesura/a través de la multitud she made her way through the dense thickets/through the crowds of people
    no es fácil abrirse camino en esa profesión it's not easy to carve a niche for oneself in that profession
    estas técnicas se están abriendo camino entre nuestros médicos these techniques are gaining ground o are beginning to gain acceptance with our doctors
    tuvo que luchar mucho para abrirse camino en la vida he had to fight hard to get on in life
    buen/mal camino: este niño va por mal caminoor lleva mal camino this boy's heading for trouble
    ya tiene trabajo, va por buen camino he's found a job already, he's doing well
    ibas por or llevabas buen camino pero te equivocaste aquí you were on the right track o lines, but you made a mistake here
    las negociaciones van por or llevan muy buen camino the negotiations are going extremely well o very smoothly
    llevar a algn por mal camino to lead sb astray
    cruzarse en el camino de algn: la mala suerte se cruzó en su camino he ran up against o came up against some bad luck
    supo superar todos los obstáculos que se le cruzaron en el camino he was able to overcome all the problems which arose o which he came across
    errar el camino to be in the wrong job o the wrong line of work
    2
    (trayecto, viaje): emprendimos el camino de regreso we set out on the return journey
    se me hizo muy largo el camino the journey seemed to take forever
    lo debí perder en el camino de casa al trabajo I must have lost it on my o on the way to work
    se pusieron en camino al amanecer they set off at dawn
    llevamos ya una hora de camino we've been traveling for an hour now, we've been on the road for an hour now
    estamos todavía a dos horas de camino we still have two hours to go o two hours ahead of us
    paramos a mitad de caminoor a medio camino a descansar we stopped halfway to rest
    por aquí cortamos or acortamos camino we can take a shortcut this way o this way's shorter
    hizo todo el camino a pie he walked the whole way, he did the whole journey on foot
    se ha avanzado mucho en este campo, pero queda aún mucho camino por recorrer great advances have been made in this field, but there's still a long way to go
    el camino será largo y difícil, pero venceremos the road will be long and difficult, but we shall be victorious
    quedarse a mitad de or a medio camino: iba para médico, pero se quedó a mitad de camino he was studying to be a doctor, but he never completed the course o he gave up halfway through the course
    el programa de remodelación se quedó a medio camino the renovation project was left unfinished
    no creo que terminemos este año, ni siquiera estamos a mitad de camino I don't think we'll finish it this year, we're not even half way through yet
    3 ( en locs):
    camino de/a: me encontré con él camino del or al mercado I ran into him on the o on my way to the market
    ya vamos camino del invierno winter's coming o approaching, winter's on the way o on its way
    llevar or ir camino de algo: un actor que va camino del estrellato an actor on his way o on the road to stardom, an actor heading for stardom, an actor who looks set for stardom
    van camino de la bancarrota they are on the road to o heading for bankruptcy, they look set to go bankrupt
    una tradición que va camino de desaparecer a tradition which looks set to disappear
    de camino: tu casa me queda de camino I pass your house on my way, your house is on my way
    ve por el pan y, de camino, compra el periódico go and get the bread and buy a newspaper on the way o your way
    de camino a: íbamos de camino a Zacatecas we were on our way o the way to Zacatecas
    está de camino a la estación it is on the way to the station
    en el caminoor de camino al trabajo paso por tres bancos I pass three banks on my way o the way to work
    en camino: deben estar ya en camino they must be on the o on their way already
    tiene un niño y otro en camino she has one child and another on the way
    por el camino on the way
    te lo cuento por el camino I'll tell you on the way
    Compuestos:
    Inca trail
    el Camino de Santiago ( Hist, Relig) the pilgrims' road to Santiago;
    ( Astron) the Milky Way
    * * *

     

    Del verbo caminar: ( conjugate caminar)

    camino es:

    1ª persona singular (yo) presente indicativo

    caminó es:

    3ª persona singular (él/ella/usted) pretérito indicativo

    Multiple Entries:
    caminar    
    camino
    caminar ( conjugate caminar) verbo intransitivo
    1 ( andar) to walk;

    podemos ir caminando we can walk, we can go on foot;
    camino hacia algo ‹hacia meta/fin› to move toward(s) sth
    2 (AmL) [reloj/motor] to work;

    verbo transitivo ‹ distancia› to walk
    camino sustantivo masculino
    1 ( en general) road;
    ( de tierra) track;
    ( sendero) path;

    2
    a) (ruta, dirección) way;


    me salieron al camino [ asaltantes] they blocked my path o way;

    [ amigos] they came out to meet me;

    el camino a la fama the road o path to fame;
    se abrió camino entre la espesura she made her way through the dense thickets;
    abrirse camino en la vida to get on in life;
    buen/mal camino: este niño va por mal camino this boy's heading for trouble;
    ibas por buen camino pero te equivocaste you were on the right track but you made a mistake;
    llevar a algn por mal camino to lead sb astray
    b) (trayecto, viaje):


    se pusieron en camino they set off;
    todavía nos quedan dos horas de camino we still have two hours to go
    c) ( en locs)

    ◊ camino de/a … on my/his/her way to …;

    ir camino de algo: una tradición que va camino de desaparecer a tradition which looks set to disappear;
    de camino on the way;
    pilla de camino it's on the way;
    me queda de camino I pass it on my way;
    de camino a la estación on the way to the station;
    en camino on the way;
    deben estar ya en camino they must be on their way already;
    por el camino on the way;
    a mitad de or a medio camino halfway through
    caminar
    I verbo intransitivo to walk
    II verbo transitivo (recorrer a pie) to cover,walk: camino un par de kilómetros diarios, I walk two kilometres every day
    camino sustantivo masculino
    1 (estrecho, sin asfaltar) path, track
    (en general) road
    2 (itinerario, ruta) route, way
    3 (medio, modo) way
    ♦ Locuciones: coger o pillar de camino, to be on the way
    estar en camino, to be on the way
    ir camino de, to be going to
    figurado ir por buen/mal camino, to be on the right/wrong track
    ponerse en camino, to set off
    a medio camino, halfway: lo deja todo a medio camino, she drops everything she starts halfway through
    figurado una casa de turismo rural es un sitio a medio camino entre un hotel y una casa de labranza, a rural tourism house is something halfway between a hotel and a farmhouse
    de camino a, on the way to
    ' camino' also found in these entries:
    Spanish:
    abrirse
    - acceso
    - ahorrar
    - andar
    - baja
    - bajo
    - bifurcación
    - borde
    - caminar
    - como
    - conducir
    - cruzarse
    - desbloquear
    - desviarse
    - dificultosa
    - dificultoso
    - división
    - empinada
    - empinado
    - enderezar
    - enfilar
    - enrevesada
    - enrevesado
    - enseñar
    - entorpecer
    - escultórica
    - escultórico
    - franca
    - franco
    - ir
    - guiar
    - horqueta
    - indicar
    - interponerse
    - intersectarse
    - intrincada
    - intrincado
    - lado
    - marcha
    - margen
    - media
    - mitad
    - mostrar
    - obstáculo
    - orientar
    - orilla
    - paso
    - pillar
    - por
    - promedio
    English:
    astray
    - blaze
    - bridle path
    - circuitous
    - claw
    - concrete
    - devious
    - dirt road
    - drive
    - driveway
    - en route
    - fight
    - footpath
    - guide
    - half-way
    - lane
    - midway
    - passable
    - path
    - pathway
    - pave
    - road
    - rocky
    - rough
    - set off
    - set out
    - show
    - signpost
    - sloping
    - stray
    - strike out
    - struggle on
    - thrust aside
    - towpath
    - track
    - up
    - uphill
    - wade through
    - way
    - wayside
    - weave
    - wind
    - winding
    - work
    - work up to
    - bound
    - by
    - continue
    - direct
    - do
    * * *
    camino nm
    1. [sendero] path, track;
    [carretera] road;
    han abierto un camino a través de la selva they've cleared a path through the jungle;
    acorté por el camino del bosque I took a shortcut through the forest;
    Univ
    Caminos(, Canales y Puertos) [ingeniería] civil engineering;
    la vida no es un camino de rosas life is no bed of roses;
    todos los caminos llevan a Roma all roads lead to Rome
    camino de acceso access road; Fam Fig camino de cabras rugged path;
    camino forestal forest track;
    camino de grava gravel path;
    camino de herradura bridle path;
    camino de hierro railway, US railroad;
    Am camino de mesa table runner; Hist camino real king's highway;
    Camino de Santiago Rel = pilgrimage route to Santiago de Compostela;
    Astron Milky Way;
    camino de sirga towpath;
    Fig camino trillado well-trodden path; Fig
    tiene el camino trillado the hard work has already been done for him;
    camino vecinal country lane
    2. [ruta, vía] way;
    el camino de la estación the way to the station;
    equivocarse de camino to go the wrong way;
    indicar el camino a alguien to show sb the way;
    no recuerdo el camino de vuelta I can't remember the way back;
    iremos por el camino más corto we'll go by the shortest route, we'll go the quickest way;
    está camino de la capital it's on the way to the capital;
    me encontré a Elena camino de casa I met Elena on the way home;
    de camino [de paso] on the way;
    ve a comprar el periódico, y de camino sube también la leche go for the newspaper and bring the milk up while you're at it;
    me pilla de camino it's on my way;
    a estas horas ya estarán en camino they'll be on their way by now;
    en el camino on the way;
    por este camino this way
    3. [viaje] journey;
    nos espera un largo camino we have a long journey ahead of us;
    se detuvieron tras cinco horas de camino they stopped after they had been on the road for five hours;
    estamos casi a mitad de camino we're about halfway there;
    pararemos a mitad de camino we'll stop halfway;
    hicimos un alto en el camino para comer we stopped (along the way) to have a bite to eat;
    también Fig
    todavía nos queda mucho camino por delante we've still got a long way to go;
    ponerse en camino to set off
    4. [medio] way;
    el camino para conseguir tus propósitos es la honestidad the way to get what you want is to be honest
    5. Comp
    abrir camino a to clear the way for;
    el hermano mayor ha abierto camino a los pequeños the older brother cleared the way for the younger ones;
    dos jinetes abrían camino a la procesión two people rode ahead to clear a path for the procession;
    abrirse camino to get on o ahead;
    se abrió camino entre la maraña de defensas he found a way through the cluster of defenders;
    abrirse camino en el mundo to make one's way in the world;
    le costó mucho abrirse camino, pero ahora tiene una buena posición it wasn't easy for him to get on, but he's got a good job now;
    allanar el camino to smooth the way;
    atravesarse o [m5] cruzarse o [m5] interponerse en el camino de alguien to stand in sb's way;
    no permitiré que nadie se cruce en mi camino I won't let anyone stand in my way;
    Fam
    tienen un bebé en camino they've got a baby on the way;
    ir por buen camino to be on the right track;
    ir por mal camino to go astray;
    con su comportamiento, estos alumnos van por mal camino the way they are behaving, these pupils are heading for trouble;
    fueron cada cual por su camino they went their separate ways;
    van camino del desastre/éxito they're on the road to disaster/success;
    va o [m5] lleva camino de convertirse en estrella she's on her way to stardom;
    a medio camino halfway;
    siempre deja todo a medio camino she always leaves things half-done;
    estar a medio camino to be halfway there;
    está a medio camino entre un delantero y un centrocampista he's somewhere between a forward and a midfielder;
    quedarse a medio camino to stop halfway through;
    el proyecto se quedó a medio camino por falta de presupuesto the project was left unfinished o was abandoned halfway through because the funds dried up;
    iba para estrella, pero se quedó a mitad de camino she looked as if she would become a star, but never quite made it;
    traer a alguien al buen camino to put sb back on the right track
    CAMINO DE SANTIAGO
    The Galician city of Santiago de Compostela in northwestern Spain, traditionally held to be the burial site of the Apostle St James, was one of the most important Christian pilgrimage centres in Europe during the Middle Ages, second only to Rome. Countless pilgrims made the journey from different parts of Europe to Santiago along recognized pilgrimage routes. The main one crosses the north of Spain from the Pyrenees to Galicia and is known as the Camino de Santiago. Although its religious significance has declined, it has become a popular tourist route attracting a wide range of travellers: nature lovers on day trips, hikers and cyclists, and even latter-day pilgrims, whether solitary walkers or on package tours. Many of them avail themselves of the free or low-cost accommodation provided along the way by local councils and religious institutions.
    * * *
    m
    1 ( senda) path;
    no es (todo) un camino de rosas it isn’t all a bed of roses
    2 INFOR path
    3 ( ruta) way;
    a medio camino halfway;
    de camino a on the way to;
    por el camino on the way;
    camino de on the way to;
    abrirse camino fig make one’s way;
    estar en camino be on the way;
    abrirse camino en la vida get on;
    ir por buen/mal camino fig be on the right/wrong track;
    abrir camino hacia algo fig pave the way for sth;
    mitad de camino fig leave sth half finished
    * * *
    camino nm
    1) : path, road
    2) : journey
    ponerse en camino: to set off
    3) : way
    a medio camino: halfway there
    * * *
    1. (sendero) path
    2. (ruta, medio) way
    camino de on the way / on your way
    ponerse en camino to set off [pt. & pp. set]

    Spanish-English dictionary > camino

  • 17 recherche

    recherche [ʀ(ə)∫εʀ∫]
    feminine noun
       a. ( = action de rechercher) search (de for)
    • être/se mettre à la recherche de qch/qn to be/go in search of sth/sb
       b. ( = enquête) recherches investigations
       c. ( = poursuite) search (de for)
       d. ( = métier, spécialité) la recherche research
    • recherches ( = études) research
       e. ( = raffinement) [de tenue] studied elegance ; (pejorative = affectation) affectation
    • être habillé avec recherche/sans recherche to be dressed with studied elegance/carelessly
    * * *
    ʀ(ə)ʃɛʀʃ
    1) ( étude) research [U]

    faire des recherches en biologie/sur le cancer — to do research in biology/into cancer

    2) ( fouille) search

    être à la recherche de — to be looking for, to be in search of

    4) ( soin) ( raffinement) meticulousness; ( affectation) pej affectation

    avec recherche — [habillé, décoré, écrit] with meticulous care

    sans recherche — ( non affecté) without affectation; ( négligé) carelessly

    •
    Phrasal Verbs:
    * * *
    ʀ(ə)ʃɛʀʃ
    1. nf
    1) (= action) search

    être à la recherche de [livre, emploi, pièce détachée] — to be looking for, [bonheur, équilibre, partenaire idéal] to be in search of

    Je suis à la recherche d'un emploi. — I'm looking for a job.

    se mettre à la recherche de [livre, emploi, pièce détachée] — to go looking for, [bonheur, équilibre, partenaire idéal] go in search of

    2) (= raffinement) studied elegance
    3) (scientifique) research

    La recherche est une priorité pour ce gouvernement. — Research is a priority for this government.

    Je voudrais faire de la recherche. — I'd like to do research.

    2. recherches nfpl
    1) [police] search

    La police a interrompu les recherches. — The police called off the search.

    2) (scientifiques) research sg
    * * *
    1 ( étude) research ¢; la recherche et le développement research and development; recherche fondamentale/appliquée basic/applied research; recherche scientifique/militaire/spatiale scientific/military/space research; fonds pour la recherche research funds; être/travailler dans la recherche to be/to work in research; faire des recherches en biologie/sur le cancer/pour améliorer un produit to do research in biology/into cancer/into improving a product;
    2 ( fouille) search; après deux heures de recherche after a two-hour search; tout le monde a participé aux recherches everyone took part in the search; les recherches pour retrouver l'enfant n'ont rien donné the search for the child drew a blank; la recherche d'un livre/d'un criminel the search for a book/for a criminal; la recherche de vos renseignements lui a pris deux heures he spent two hours searching for the information you wanted; à la recherche de qn/qch in search of sb/sth; être à la recherche de to be looking for, to be in search of; aller or partir or se mettre à la recherche de to go looking for, to go in search of; ils sont à la recherche d'un logement they're looking for somewhere to live; être à la recherche d'un emploi to be looking for a job, to be job-hunting; se mettre à la recherche d'un emploi to go job-hunting; travailler à la recherche d'une solution to work on finding a solution;
    3 ( volonté d'atteindre) recherche de pursuit of; être à la recherche d'un bonheur idéal to be in pursuit of ideal happiness;
    4 ( soin) ( raffinement) meticulousness; ( affectation) pej affectation; avec recherche [habillé, décoré, écrit] with meticulous care; sans recherche ( non affecté) without affectation; ( négligé) carelessly; il y a trop de recherche dans votre style/votre tenue you are too fastidious about your style/your dress.
    recherche assistée par ordinateur, RAO computer-aided retrieval, CAR; recherche dichotomique Ordinat binary ou dichotomizing search; recherche d'emploi job-hunting; c'est sa première recherche d'emploi he's looking for his first job; recherche opérationnelle operations ou operational research; recherche de paternité Jur establishment of paternity; action en recherche de paternité paternity suit.
    [rəʃɛrʃ] nom féminin
    1. [d'un objet, d'une personne, d'un emploi etc.] search
    [du bonheur, de la gloire, du plaisir] pursuit
    [d'informations] research
    4. [prospection]
    5. SCIENCES & UNIVERSITÉ
    bourse/travaux de recherche research grant/work
    a. [spécialiste] she's a research chemist
    6. [raffinement] sophistication, refinement
    sans recherche simple, plain
    ————————
    recherches nom féminin pluriel
    [enquête] search
    [travaux - généralement] work, research ; [ - de médecine] research
    à la recherche de locution prépositionnelle
    in search of, looking ou searching for
    être/partir/se mettre à la recherche de to be/to set off/to go in search of
    ‘À la recherche du temps perdu’ Proust ‘In Search of Lost Time’

    Dictionnaire Français-Anglais > recherche

  • 18 Berthollet, Claude-Louis

    SUBJECT AREA: Textiles
    [br]
    b. 9 November 1748 Talloise, near Lake Annecy, France
    d. 6 November 1822 Arceuil, France
    [br]
    French chemist who made important innovations in textile chemistry.
    [br]
    Berthollet qualified as a medical doctor and pursued chemical researches, notably into "muriatic acid" (chlorine), then recently discovered by Scheele. He was one of the first chemists to embrace the new system of chemistry advanced by Lavoisier. Berthollet held several official appointments, among them inspector of dye works (from 1784) and Director of the Manufacture Nationale des Gobelins. These appointments enabled him to continue his researches and embark on a series of publications on the practical applications of chlorine, prussic acid (hydrocyanic acid) and ammonia. He clearly demonstrated the benefits of the French practice of appointing scientists to the state manufactories.
    There were two practical results of Berthollet's studies of chlorine. First, he produced a powerful explosive by substituting potassium chlorate, formed by the action of chlorine on potash, in place of nitre (potassium nitrate) in gunpowder. Then, mainly from humanitarian motives, he followed up Scheele's observation of the bleaching properties of chlorine water, in order to release for cultivation the considerable areas of land that had hitherto been required by the old bleaching process. The chlorine method greatly speeded up bleaching; this was a vital factor in the revolution in the textile industries.
    After a visit to Egypt in 1799, Berthollet carried out many experiments on dyeing, seeking to place this ancient craft onto a scientific basis. His work is summed up in his Eléments de l'art de la teinture, Paris, 1791.
    [br]
    Bibliography
    1791, Eléments de Van de la teinture, Paris (covers his work on dyeing).
    Berthollet published two books of importance in the early history of physical chemistry: 1801, Recherches sur les lois de l'affinité, Paris.
    Annales de Chimie.
    Further Reading
    E.Farber, 1961, Great Chemists, New York: Interscience, pp. 32–4 (includes a short biographical account).
    LRD

    Biographical history of technology > Berthollet, Claude-Louis

  • 19 Grove, Sir William Robert

    SUBJECT AREA: Electricity
    [br]
    b. 11 July 1811 Swansea, Wales
    d. 1 August 1896 London, England
    [br]
    Welsh chemist and physicist, inventor of the Grove electrochemical primary cell.
    [br]
    After education at Brasenose College, Oxford, Grove was called to the Bar in 1835. Instead of immediately practising, he became involved in electrical research, devising in 1839 the cell that bears his name. He became Professor of Experimental Philosophy at the London Institution from 1840 to 1845; it was during this period that he built up his high reputation among physicists. In 1846 he published On the Correlation of Physical Forces, which was based on a course of his lectures. He returned to the practice of law, becoming a judge in 1871, but retained his interest in scientific research during his sixteen-year occupancy of the Bench. He served as a member of the Council of the Royal Society in 1846 and 1847 and played a leading part in its reform. Contributing to the science of electrochemistry, he invented the Grove cell, which together with its modification by Bunsen became an important source of electrical energy during the middle of the nineteenth century, before mechanically driven generators became available. The Grove cell had a platinum electrode immersed in strong nitric acid, separated by a porous diaphragm from a zinc electrode in weak sulphuric acid. The hydrogen formed at the platinum electrode was immediately oxidized by the acid, turning it into water. This avoided the polarization which occurred in the early copper-zinc cells. It was a very powerful primary cell with a high voltage and a low internal resistance, but it produced objectionable fumes. Grove also invented his "gas battery", the earliest fuel cell, in which a current resulted from the chemical energy released from combining oxygen and hydrogen. This was developed by Rawcliffe and others, and found applications as a power source in manned spacecraft.
    [br]
    Principal Honours and Distinctions
    Knighted 1872. FRS 1840. Fellow of the Chemistry Society 1841. Royal Society Royal Medal 1847.
    Bibliography
    1846, On the Correlation of Physical Forces, London; 1874, 6th edn, with reprints of many of Grove's papers (his only book, an early view on the conservation of energy).
    1839, "On a small voltaic battery of great energy", Philosophical Magazine 15:287–93 (his account of his cell).
    Further Reading
    Obituary, 1896, Electrician 37:483–4.
    K.R.Webb, 1961, "Sir William Robert Grove (1811–1896) and the origin of the fuel cell", Journal of the Royal Institute of Chemistry 85: 291–3 (for the present-day significance of Grove's experiments).
    C.C.Gillispie (ed.), 1972, Dictionary of Scientific Biography, Vol. V, New York, pp. 559–61.
    GW

    Biographical history of technology > Grove, Sir William Robert

  • 20 Lavoisier, Antoine Laurent

    SUBJECT AREA: Chemical technology
    [br]
    b. 26 August 1743 Paris, France
    d. 8 May 1794 Paris, France
    [br]
    French founder of the modern science of chemistry.
    [br]
    As well as receiving a formal education in law and literature, Lavoisier studied science under some of the leading figures of the day. This proved to be an ideal formation of the man in whom "man of science" and "public servant" were so intimately combined. His early work towards the first geological map of France and on the water supply of Paris helped to win him election to the Royal Academy of Sciences in 1768 at the youthful age of 25. In the same year he used some of his private income to buy a part-share in the "tax farm", a private company which leased from the Government the right to collect certain indirect taxes.
    In 1772 Lavoisier began his researches into the related phenomena of combustion, respiration and the calcination or oxidation of metals. This culminated in the early 1780s in the overthrow of the prevailing theory, based on an imponderable combustion principle called "phlogiston", and the substitution of the modern explanation of these processes. At the same time, understanding of the nature of acids, bases and salts was placed on a sounder footing. More important, Lavoisier defined a chemical element in its modern sense and showed how it should be applied by drawing up the first modern list of the chemical elements. With the revolution in chemistry initiated by Lavoisier, chemists could begin to understand correctly the fundamental processes of their science. This understanding was the foundationo of the astonishing advance in scientific and industrial chemistry that has taken place since then. As an academician, Lavoisier was paid by the Government to carry out investigations into a wide variety of practical questions with a chemical bias, such as the manufacture of starch and the distillation of phosphorus. In 1775 Louis XVI ordered the setting up of the Gunpowder Commission to improve the supply and quality of gunpowder, deficiencies in which had hampered France's war efforts. Lavoisier was a member of the Commission and, as usual, took the leading part, drawing up its report and supervising its implementation. As a result, the industry became profitable, output increased so that France could even export powder, and the range of the powder increased by two-thirds. This was a material factor in France's war effort in the Revolution and the Napoleonic wars.
    As if his chemical researches and official duties were not enough, Lavoisier began to apply his scientific principles to agriculture when he purchased an estate at Frechines, near Blois. After ten years' work on his experimental farm there, Lavoisier was able to describe his results in the memoir "Results of some agricultural experiments and reflections on their relation to political economy" (Paris, 1788), which holds historic importance in agriculture and economics. In spite of his services to the nation and to humanity, his association with the tax farm was to have tragic consequences: during the reign of terror in 1794 the Revolutionaries consigned to the guillotine all the tax farmers, including Lavoisier.
    [br]
    Bibliography
    1862–93, Oeuvres de Lavoisier, Vols I–IV, ed. J.B.A.Dumas; Vols V–VI, ed. E.Grimaux, Paris (Lavoisier's collected works).
    Further Reading
    D.I.Duveen and H.S.Klickstein, 1954, A Bibliography of the Works of Antoine Laurent Lavoisier 1743–1794, London: William Dawson (contains valuable biographical material).
    D.McKie, 1952, Antoine Lavoisier, Scientist, Economist, Social Reformer, London: Constable (the best modern, general biography).
    H.Guerlac, 1975, Antoine Laurent Lavoisier, Chemist and Revolutionary, New York: Charles Scribner's Sons (a more recent work).
    LRD

    Biographical history of technology > Lavoisier, Antoine Laurent

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