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1 research chemist
Общая лексика: химик-исследователь -
2 research chemist
English-Russian perfumery & beauty care dictionary > research chemist
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3 chemist
1. n химик2. n аптекарь; фармацевт -
4 chemist
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5 research
A n1 (academic, medical etc) recherche f (into, on sur) ; to do research faire de la recherche ; money for cancer research de l'argent pour la recherche sur le cancer ; she's doing some research on cancer elle fait des recherches sur le cancer ; animal research expériences fpl sur les animaux ; a piece of research une recherche ;2 Comm ( for marketing) études fpl ; research shows that les études montrent que ; market research étude f de marché ;C modif [assistant, department, grant, institute, programme, project, unit] de recherche ; [student] qui fait de la recherche ; [funding] pour la recherche ; research work recherche f ; research biologist/chemist/physicist/scientist chercheur/-euse m/f en biologie/chimie/physique/science.D vtr1 gen, Univ faire des recherches dans [field] ; faire des recherches sur [topic] ; préparer [book, article, play] ;3 Comm faire une étude sur [consumer attitudes, customer needs] ; to research the market faire une étude de marché ; you will be required to research techniques for… votre tâche consistera à mettre au point des techniques de… -
6 research department
English-Russian big polytechnic dictionary > research department
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7 Muller, Paul Hermann
SUBJECT AREA: Agricultural and food technology[br]b. 12 January 1899 Olten, Solothurn, Switzerlandd. 13 October 1965 Basle, Switzerland[br]Swiss chemist, inventor of the insecticide DDT.[br]Muller was educated in Basle and his interest in chemistry was stimulated when he started work as a laboratory assistant in the chemical factory of Dreyfus \& Co. After further laboratory work, he entered the University of Basle in 1919, achieving his doctorate in 1925. The same year, he entered the dye works of J.R.Geigy AG as a research chemist. He spent the rest of his career there, rising to the position of Deputy Head of Pest Control Research. From 1935 he began the search for an insecticide that was fast acting and persistent, but harmless to plants and warmblooded animals. In 1940 he patented the use of a compound known since 1873, dichlorodiphenyltrichloroethane, or DDT. It could be easily and cheaply manufactured and was highly effective. Muller obtained a Swiss patent for DDT in 1940 and it went into commercial production two years later. One useful application of DDT at the end of the Second World War was in killing lice to prevent typhus epidemics. It was widely used and an important factor in farmers' postwar success in raising food production, but after twenty years or so, some species of insects were found to have developed resistance to its action, thus limiting its effectiveness. Worse, it was found to be harmful to other animals, which gave rise to anxieties about its persistence in the food chain. By the 1970s its use was banned or strictly limited in developed countries. Nevertheless, in its earlier career it had conferred undoubted benefits and was highly valued, as reflected by the award of a Nobel Prize in Medicine or Physiology in 1948.[br]Principal Honours and DistinctionsNobel Prize in Medicine or Physiology 1948.BibliographyMuller described DDT and related compounds in two papers in Helvetica chimica acta for 1944 and 1946.Further ReadingObituary, 1965, Nature 208:1,043–4.LRD -
8 Whinfield, John Rex
[br]b. 16 February 1901 Sutton, Surrey, Englandd. 6 July 1955 Dorking, Surrey, England[br]English inventor ofTerylene.[br]Whinfield was educated at Merchant Taylors' School and Caius College, Cambridge, where he studied chemistry. Before embarking on his career as a research chemist, he worked as an un-paid assistant to the chemist C.F. Cross, who had taken part in the discovery of rayon. Whinfield then joined the Calico Printers' Association. There his interest was aroused by the discovery of nylon by W.H. Carothers to seek other polymers which could be produced in fibre form, usable by the textile industries. With his colleague J.T. Dickson, he discovered in 1941 that a polymerized condensate of terephthalic acid and ethylene glycol, polyethylene terephthgal-late, could be drawn into strong fibres. Whinfield and Dickson filed a patent application in the same year, but due to war conditions it was not published until 1946. The Ministry of Supply considered that the new material might have military applications and undertook further research and development. Its industrial and textile possibilities were evaluated by Imperial Chemical Industries (ICI) in 1943 and "Terylene", as it came to be called, was soon recognized as being as important as nylon.In 1946, Dupont acquired rights to work the Calico Printers' Association patent in the USA and began large-scale manufacture in 1954, marketing the product under the name "Dacron". Meanwhile ICI purchased world rights except for the USA and reached the large-scale manufacture stage in 1955. A new branch of the textile industry has grown up from Whinfield's discovery: he lived to see most people in the western world wearing something made of Terylene. It was one of the major inventions of the twentieth century, yet Whinfield, perhaps because he published little, received scant recognition, apart from the CBE in 1954.[br]Principal Honours and DistinctionsCBE 1954.Further ReadingObituary, 1966, The Times (7 July).Obituary, 1967, Chemistry in Britain 3:26.J.Jewkes, D.Sawers and R.Stillerman, 1969, The Sources of Invention, 2nd edn, London: Macmillan.LRD -
9 blaze a path
(blaze a (или the) path (или trail; тж. blaze the way))быть новатором (отсюда trail-blazer, trail-blazing) [первонач. амер. отмечать дорогу в лесу зарубками на деревьях]This research chemist blazed a trail in the study of colloids. (P. Selver, ‘English Phraseology’) — Этот химик был зачинателем изучения коллоидов.
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10 Brearley, Harry
SUBJECT AREA: Metallurgy[br]b. 18 February 1871 Sheffield, Englandd. 14 July 1948 Torquay, Devon, England[br]English inventor of stainless steel.[br]Brearley was born in poor circumstances. He received little formal education and was nurtured rather in and around the works of Thomas Firth \& Sons, where his father worked in the crucible steel-melting shop. One of his first jobs was to help in their chemical laboratory where the chief chemist, James Taylor, encouraged him and helped him fit himself for a career as a steelworks chemist.In 1901 Brearley left Firth's to set up a laboratory at Kayser Ellison \& Co., but he returned to Firth's in 1904, when he was appointed Chief Chemist at their Riga works, and Works Manager the following year. In 1907 he returned to Sheffield to design and equip a research laboratory to serve both Firth's and John Brown \& Co. It was during his time as head of this laboratory that he made his celebrated discovery. In 1913, while seeking improved steels for rifle barrels, he used one containing 12.68 per cent chromium and 0.24 per cent carbon, in the hope that it would resist fouling and erosion. He tried to etch a specimen for microscopic examination but failed, from which he concluded that it would resist corrosion by, for example, the acids encountered in foods and cooking. The first knives made of this new steel were unsatisfactory and the 1914–18 war interrupted further research. But eventually the problems were overcome and Brearley's discovery led to a range of stainless steels with various compositions for domestic, medical and industrial uses, including the well-known "18–8" steel, with 18 per cent chromium and 8 per cent nickel.In 1915 Brearley left the laboratory to become Works Manager, then Technical Director, at Brown Bayley's steelworks until his retirement in 1925.[br]Principal Honours and DistinctionsIron and Steel Institute Bessemer Gold Medal 1920.BibliographyBrearley wrote several books, including: 1915 (?), with F.Ibbotson, The Analysis of Steelworks Materials, London.The Heat Treatment of Tool Steels. Ingots and Ingot Moulds.Later books include autobiographical details: 1946, Talks on Steelmaking, American Society for Metals.1941, Knotted String: Autobiography of a Steelmaker, London: Longmans, Green.Further ReadingObituary, 1948, Journal of the Iron and Steel Institute: 428–9.LRD -
11 Pasteur, Louis
[br]b. 27 December 1822 Dole, Franced. 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]BibliographyPasteur 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 ReadingP.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 -
12 Caro, Heinrich
[br]b. 13 February 1834 Poznan, Polandd. 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 ReadingA.Bernthsen, 1912, obituary, Berichte derDeutschen Chemischen Gesellschaft, 45; 1,987–2,042 (a substantial obituary).LRD -
13 Carothers, Wallace Hume
[br]b. 27 April 1896 Burlington, Iowa, USAd. 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 DistinctionsElected to the National Academy of Science 1936 (he was the first industrial organic chemist to be so honoured).BibliographyH.M.Whitby and G.S.Whitby, 1940, Collected Papers of Wallace H.Carothers on Polymerisation, New York.Further ReadingR.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).LRDBiographical history of technology > Carothers, Wallace Hume
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14 Daniell, John Frederick
SUBJECT AREA: Electricity[br]b. 12 March 1790 London, Englandd. 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 DistinctionsFRS 1814. Royal Society Rumford Medal 1832, Copley Medal 1837, Royal Medal 1842.Bibliography1836, "On voltaic combinations", Phil. Transactions of the Royal Society 126:107–24, 125–9 (the first report of his experiments).Listings of his scientific papers can be found in Catalogue of Scientific Papers, 1868, Vol. II, London: Royal Society.Further ReadingObituary, 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.GWBiographical history of technology > Daniell, John Frederick
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15 Gibson, R.O.
[br]fl. 1920s–30s[br]English chemist who, with E.O.Fawcett, discovered polythene.[br]Dr Gibson's work towards the discovery of polythene had its origin in a visit in 1925 to Dr A. Michels of Amsterdam University; the latter had made major advances in techniques for studying chemical reactions at very high pressures. After working with Michels for a time, in 1926 Gibson joined Brunner Mond, one of the companies that went on to form the chemical giant Imperial Chemical Industries (ICI). The company supported research into fundamental chemical research that had no immediate commercial application, including the field being cultivated by Michels and Gibson. In 1933 Gibson was joined by another ICI chemist, E.O.Fawcett, who had worked with W.H. Carothers in the USA on polymer chemistry. They were asked to study the effects of high pressure on various reaction systems, including a mixture of benzaldehyde and ethylene. Gibson's notebook for 27 March that year records that after a loss of pressure during which the benzaldehyde was blown out of the reaction tube, a waxy solid was observed in the tube. This is generally recognized as the first recorded observation of polythene. By the following June they had shown that the white, waxy solid was a fairly high molecular weight polymer of ethylene formed at a temperature of 443°K and a pressure of 2,000 bar. However, only small amounts of the material were produced and its significance was not immediately recognized. It was not until two years later that W.P.Perrin and others, also ICI chemists, restarted work on the polymer. They showed that it could be moulded, drawn into threads and cast into tough films. It was a good electrical insulator and almost inert chemically. A British patent for producing polythene was taken out in 1936, and after further development work a production plant began operating in September 1939, just as the Second World War was breaking out. Polythene had arrived in time to make a major contribution to the war effort, for it had the insulating properties required for newly developing work on radar. When peacetime uses became possible, polythene production surged ahead and became the major industry it is today, with a myriad uses in industry and in everyday life.[br]Bibliography1964, The Discovery of Polythene, Royal Institute of Chemistry Lecture Series 1, London.LRD -
16 at
preposition1) (expr. place) an (+ Dat.)at the station — am Bahnhof
at the baker's/butcher's/grocer's — beim Bäcker/Fleischer/Kaufmann
at the chemist's — in der Apotheke/Drogerie
at the supermarket — im Supermarkt
at the office/hotel — im Büro/Hotel
2) (expr. time)at Christmas/Whitsun/Easter — [zu od. an] Weihnachten/Pfingsten/Ostern
at six o'clock — um sechs Uhr
at [the age of] 40 — mit 40; im Alter von 40
at this/the moment — in diesem/im Augenblick od. Moment
3) (expr. price)at £2.50 [each] — zu od. für [je] 2,50 Pfund
4)while we're/you're etc. at it — wenn wir/du usw. schon dabei sind/bist usw.
so while I was at it,... — und wo od. da ich schon dabei war...
at that — (at that point) dabei; (at that provocation) daraufhin; (moreover) noch dazu
* * *[æt]( showing)2) (direction: He looked at her; She shouted at the boys.) zu; nach; auf5) (pace or speed: He drove at 120 kilometres per hour.) mit•- academic.ru/94827/at_all">at all* * *at[æt, ət]1. (in location of)she's standing \at the bar sie steht an der Thekemy number \at the office is 2154949 meine Nummer im Büro lautet 2154949she lives \at number 12, Darlington Road sie wohnt in der Darlington Road Nummer 12there's somebody \at the door da ist jemand an der Türhe was standing \at the top of the stairs er stand oben an der Treppe\at Anna's bei Anna\at the airport/station am Flughafen/Bahnhof\at the baker's/doctor's beim Bäcker/Arzt\at home zu Hause\at a hotel in einem Hotel\at the table am Tisch\at the window am Fenster\at the zoo im Zoo2. (attending)we spent the afternoon \at the museum wir verbrachten den Nachmittag im Museumwhile he was \at his last job, he learned a lot in seiner letzten Stelle hat er viel gelernt\at the institute am Institut\at the party/festival auf [o bei] der Party/dem Festival\at school in der Schule\at university auf [o an] der Universität\at work auf [o bei] der Arbeithe's \at work at the moment er arbeitet gerade3. (expressing point of time)he was defeated \at the election er wurde bei der Wahl geschlagenwhat are you doing \at Christmas? was macht ihr an Weihnachten?our train leaves \at 2 o'clock unser Zug fährt um 2:00 UhrI'm busy \at present [or the moment] ich bin gerade beschäftigtI can't come to the phone \at the moment ich kann gerade nicht ans Telefon kommenwe always read the kids a story \at bedtime wir lesen den Kindern zum Schlafengehen immer eine Geschichte vorI can't do ten things \at a time ich kann nicht tausend Sachen auf einmal machenhis death came \at a time when... sein Tod kam zu einem Zeitpunkt, als...the bells ring \at regular intervals die Glocken läuten in regelmäßigen Abständen\at the age of 60 im Alter von 60most people retire \at 65 die meisten Leute gehen mit 65 in Rente\at the beginning/end am Anfang/Ende\at daybreak/dawn im Morgengrauen\at lunch beim Mittagessen\at lunchtime in der Mittagspause\at midnight um Mitternacht\at night nachts\at nightfall bei Einbruch der Nacht\at this stage of research beim derzeitigen Stand der Forschungfive \at a time fünf auf einmal\at the time zu diesem Zeitpunkt\at the time, nobody knew damals wusste keiner BescheidI love snow — \at the same time, however, I hate the cold ich liebe Schnee — andererseits hasse ich jedoch die Kälte\at the weekend am Wochenendehe can see clearly \at a distance of 50 metres er kann auf eine Entfernung von 50 Metern noch alles erkennenlearners of English \at advanced levels Englischlernende mit fortgeschrittenen Kenntnissenthe horse raced to the fence \at a gallop das Pferd raste im Galopp auf den Zaun zuthe children came \at a run die Kinder kamen angeranntI'm not going to buy those shoes \at $150! ich zahle keine 150 Dollar für diese Schuhe!\at that price, I can't afford it zu diesem Preis kann ich es mir nicht leisteninflation is running \at 5% die Inflation liegt im Moment bei 5 %\at £20 apiece für 20 Pfund das Stück\at 50 kilometres per hour mit [o bei] 50 km/hhe denied driving \at 120 km per hour er leugnete, 120 Stundenkilometer gefahren zu sein5. (in state, condition of)the country was \at war das Land befand sich im Kriegthere was a murderer \at large ein Mörder war auf freiem Fußto be \at an advantage/a disadvantage im Vorteil/Nachteil seinto be \at ease with sb sich akk mit jdm zusammen wohl fühlento be \at fault im Unrecht sein\at a loss/profit mit Verlust/Gewinnto be \at peace ( euph) in Frieden ruhen\at play beim Spielen\at one's own risk auf eigene Gefahrto put sb/sth \at risk jdn/etw gefährdento be \at a standstill stillstehen6. + superlshe's \at her best when she's under stress sie ist am besten, wenn sie unter Druck stehthe was \at his happiest while he was still in school in der Schule war er am glücklichsten\at [the] most [aller]höchstens7. after adjI was so depressed \at the news die Nachricht hat mich sehr deprimiertwe are unhappy \at the current circumstances über die gegenwärtigen Umstände sind wir sehr unglücklichdon't be angry \at her! ( fam) sei nicht sauer auf sie!I'm amazed \at the way you can talk ich bin erstaunt, wie du reden kannstto be good/poor \at sth etw gut/schlecht könnento be good \at math gut in Mathematik sein8. after vbshe shuddered \at the thought of having to fly in an airplane sie erschauderte bei dem Gedanken, mit einem Flugzeug fliegen zu müssenhe excels \at diving er ist ein hervorragender Taucherthe dog gnawed \at the bone der Hund knabberte an dem Knochen herumshe clutched \at the thin gown sie klammerte sich an den dünnen Morgenmantelif you persevere \at a skill long enough,... wenn man eine Fertigkeit lange genug trainiert,...some dogs howl \at the moon manche Hunde heulen den Mond anto aim \at sb auf jdn zielento aim \at sth etw zum Ziel habento go \at sb jdn angreifento hint \at sth etw andeutento laugh \at sth über etw akk lachento look \at sb jdn anschauento rush \at sb auf jdn zurennento wave \at sb jdm zuwinken9. after nher pleasure \at the bouquet was plain to see ihre Freude über den Blumenstrauß war unübersehbarto be an expert \at sth ein Experte für etw akk seinto be a failure \at sth eine Niete in etw dat sein10. (in response to)I'm here \at his invitation ich bin hier, da er mich eingeladen hat\at your request... auf Ihre Bitte hin...\at her death, we all moved away nach ihrem Tod zogen wir alle weg\at this [or that] ... daraufhin...11. (repeatedly do)to be \at sth mit etw dat beschäftigt seinhe's been \at it for at least 15 years er macht das jetzt schon seit mindestens 15 Jahren12.▶ \at all:she barely made a sound \at all sie gab fast überhaupt keinen Laut von sichI haven't been well \at all recently in letzter Zeit ging es mir gar nicht gutdid she suffer \at all? hat sie denn gelitten?▶ nothing/nobody \at all gar [o überhaupt] nichts/niemand▶ not \at all (polite response) gern geschehen, keine Ursache, da nicht für NORDD; (definitely not) keineswegsI'm not \at all in a hurry ich habe es wirklich nicht eilig▶ to be \at sb jdm zusetzen▶ \at first zuerst, am Anfang▶ to be \at it:while we're \at it... wo wir gerade dabei sind,...▶ \at last endlich, schließlich▶ \at that:she's got a new boyfriend, and a nice one \at that sie hat einen neuen Freund, und sogar einen nettenLondon is where it's \at in London steppt der Bär! slshe really doesn't know where she's \at sie weiß wirklich nicht, wo ihr der Kopf steht* * *prepat the window — am or beim Fenster
he doesn't know where he's at (inf) — der weiß ja nicht, was er tut (inf)
2)to aim/shoot/point etc at sb/sth — auf jdn/etw zielen/schießen/zeigen etcto look/growl/swear etc at sb/sth —
3)at night/dawn — bei Nacht/beim or im Morgengrauen
at Christmas/Easter etc — zu Weihnachten/Ostern etc
at your age/16 (years of age) — in deinem Alter/mit 16 (Jahren)
at the start/end of sth — am Anfang/am Ende einer Sache (gen)
4)(activity)
at play — beim Spielgood/bad/an expert at sth — gut/schlecht/ein Experte in etw
his employees/creditors are at him — seine Angestellten/Gläubiger setzen ihm zu
while we are at it (inf) — wenn wir schon mal dabei sind
the couple in the next room were at it all night (inf) — die beiden im Zimmer nebenan haben es die ganze Nacht getrieben
5)(state, condition)
to be at an advantage — im Vorteil seinat a loss/profit — mit Verlust/Gewinn
See:6) (= as a result of, upon) auf (+acc)... (hin)at his request —
at that/this he left the room — daraufhin verließ er das Zimmer
8)at 50p a pound — für or zu 50 Pence pro or das Pfund
at 5% interest — zu 5% Zinsen
at a high/low price — zu einem hohen/niedrigen Preis
with inflation at this level — bei so einer Inflationsrate
See:* * *at [æt] präp1. (Ort, Stelle) in (dat), an (dat), bei, zu, auf (dat)( in Verbindung mit Städtenamen steht at im Allgemeinen bei kleineren Städten, bei größeren Städten nur dann, wenn sie bloß als Durchgangsstationen, besonders auf Reisen, betrachtet werden;at the baker’s beim Bäcker;at the battle of N. in der Schlacht bei N.;at the door an der Tür;he lives at 48, Main Street er wohnt Main Street Nr. 48;he was educated at Christ’s College er hat am Christ’s College studiert;jogging is where it’s at umg es geht nichts über Jogging2. (Richtung etc) auf (akk), gegen, nach, bei, durch:he threw a stone at the door er warf einen Stein gegen die Tür3. (Beschäftigung etc) bei, beschäftigt mit, in (dat):4. (Art und Weise, Zustand, Lage) in (dat), bei, zu, unter (dat), nach:at all überhaupt;not at all! umg nichts zu danken!, gern geschehen!;nothing at all gar nichts, überhaupt nichts;no doubts at all überhaupt oder gar keine Zweifel, keinerlei Zweifel;is he at all suitable? ist er überhaupt geeignet?;I wasn’t surprised at all ich war nicht im Geringsten überrascht5. (Ursprung, Grund, Anlass) über (akk), bei, von, aus, auf (akk), anlässlich6. (Preis, Wert, Verhältnis, Ausmaß, Grad etc) für, um, zu, auf (akk), mit, bei:at 6 dollars für oder zu 6 Dollar7. (Zeit, Alter) um, bei, zu, im Alter von, auf (dat), an (dat):at 21 mit 21 (Jahren), im Alter von 21 Jahren;at 3 o’clock um 3 Uhr;at his death bei seinem Tod (Siehe weitere Verbindungen bei den entsprechenden Stichwörtern.)* * *preposition1) (expr. place) an (+ Dat.)at the baker's/butcher's/grocer's — beim Bäcker/Fleischer/Kaufmann
at the chemist's — in der Apotheke/Drogerie
at the office/hotel — im Büro/Hotel
2) (expr. time)at Christmas/Whitsun/Easter — [zu od. an] Weihnachten/Pfingsten/Ostern
at midday — am Mittag; mittags
at [the age of] 40 — mit 40; im Alter von 40
at this/the moment — in diesem/im Augenblick od. Moment
3) (expr. price)at £2.50 [each] — zu od. für [je] 2,50 Pfund
4)while we're/you're etc. at it — wenn wir/du usw. schon dabei sind/bist usw.
so while I was at it,... — und wo od. da ich schon dabei war...
at that — (at that point) dabei; (at that provocation) daraufhin; (moreover) noch dazu
* * *(for) a reasonable price expr.kostengünstig adv. prep.an präp.auf präp.bei präp.im präp.in präp.um präp.zu präp.über präp. -
17 Abel, Sir Frederick August
[br]b. 17 July 1827 Woolwich, London, Englandd. 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 DistinctionsGrand 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.Bibliography1854, 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 ReadingDictionary of National Biography, 1912, Vol. 1, Suppl. 2, London: Smith, Elder.CMBiographical history of technology > Abel, Sir Frederick August
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18 Haber, Fritz
SUBJECT AREA: Chemical technology[br]b. 9 December 1868 Breslau, Germany (now Wroclaw, Poland)d. 29 January 1934 Basel, Switzerland[br]German chemist, inventor of the process for the synthesis of ammonia.[br]Haber's father was a manufacturer of dyestuffs, so he studied organic chemistry at Berlin and Heidelberg universities to equip him to enter his father's firm. But his interest turned to physical chemistry and remained there throughout his life. He became Assistant at the Technische Hochschule in Karlsruhe in 1894; his first work there was on pyrolysis and electrochemistry, and he published his Grundrisse der technischen Electrochemie in 1898. Haber became famous for thorough and illuminating theoretical studies in areas of growing practical importance. He rose through the academic ranks and was appointed a full professor in 1906. In 1912 he was also appointed Director of the Institute of Physical Chemistry and Electrochemistry at Dahlem, outside Berlin.Early in the twentieth century Haber invented a process for the synthesis of ammonia. The English chemist and physicist Sir William Crookes (1832–1919) had warned of the danger of mass hunger because the deposits of Chilean nitrate were becoming exhausted and nitrogenous fertilizers would not suffice for the world's growing population. A solution lay in the use of the nitrogen in the air, and the efforts of chemists centred on ways of converting it to usable nitrate. Haber was aware of contemporary work on the fixation of nitrogen by the cyanamide and arc processes, but in 1904 he turned to the study of ammonia formation from its elements, nitrogen and hydrogen. During 1907–9 Haber found that the yield of ammonia reached an industrially viable level if the reaction took place under a pressure of 150–200 atmospheres and a temperature of 600°C (1,112° F) in the presence of a suitable catalyst—first osmium, later uranium. He devised an apparatus in which a mixture of the gases was pumped through a converter, in which the ammonia formed was withdrawn while the unchanged gases were recirculated. By 1913, Haber's collaborator, Carl Bosch had succeeded in raising this laboratory process to the industrial scale. It was the first successful high-pressure industrial chemical process, and solved the nitrogen problem. The outbreak of the First World War directed the work of the institute in Dahlem to military purposes, and Haber was placed in charge of chemical warfare. In this capacity, he developed poisonous gases as well as the means of defence against them, such as gas masks. The synthetic-ammonia process was diverted to produce nitric acid for explosives. The great benefits and achievement of the Haber-Bosch process were recognized by the award in 1919 of the Nobel Prize in Chemistry, but on account of Haber's association with chemical warfare, British, French and American scientists denounced the award; this only added to the sense of bitterness he already felt at his country's defeat in the war. He concentrated on the theoretical studies for which he was renowned, in particular on pyrolysis and autoxidation, and both the Karlsruhe and the Dahlem laboratories became international centres for discussion and research in physical chemistry.With the Nazi takeover in 1933, Haber found that, as a Jew, he was relegated to second-class status. He did not see why he should appoint staff on account of their grandmothers instead of their ability, so he resigned his posts and went into exile. For some months he accepted hospitality in Cambridge, but he was on his way to a new post in what is now Israel when he died suddenly in Basel, Switzerland.[br]Bibliography1898, Grundrisse der technischen Electrochemie.1927, Aus Leben und Beruf.Further ReadingJ.E.Coates, 1939, "The Haber Memorial Lecture", Journal of the Chemical Society: 1,642–72.M.Goran, 1967, The Story of Fritz Haber, Norman, OK: University of Oklahoma Press (includes a complete list of Haber's works).LRD -
19 Staudinger, Hermann
[br]b. 23 March 1881 Worms, Germanyd. 8 September 1965 Freiberg im Breisgau, Germany[br]German chemist, founder of polymer chemistry.[br]Staudinger studied chemistry at the universities of Halle, Darmstadt and Munich, originally as a preparation for botanical studies, but chemistry claimed his full attention. He followed an academic career, with professorships at Karlsruhe in 1908, Zurich in 1912 and Freiberg from 1926 until his retirement in 1951. Staudinger began his work as an organic chemist by following well-established lines of research, but from 1920 he struck out in a new direction. Until that time, rubber and other apparently non-crystalline materials with high molecular weight were supposed to consist of a disordered collection of small molecules. Staudinger investigated the structure of rubber and realized that it was made up of very large molecules with many basic groups of atoms held together by normal chemical bonds. Substances formed in this way are known as "polymers". Staudinger's views first met with opposition, but he developed methods of determining the molecular weights of these "high polymers". Finally, the introduction of X-ray crystallographic investigation of chemical structure confirmed his views. This discovery has proved to be the basis of a new branch of chemistry with momentous consequences for industry. From it stemmed the synthetic rubber, plastics, fibres, adhesives and other industries, with all their multifarious applications in everyday life. The Staudinger equation, linking viscosity with molecular weight, is still widely used, albeit with some reservations, in the polymer industry.During the 1930s, Staudinger turned his attention to biopolymers and foresaw the discovery some twenty years later that these macromolecules were the building blocks of life. In 1953 he belatedly received the Nobel Prize in Chemistry.[br]Principal Honours and DistinctionsNobel Prize in Chemistry 1953.Bibliography1961, Arbeitserinnerungen, Heidelberg; pub. in English, 1970 as From Organic Chemistry to Macromolecules, New York (includes a comprehensive bibliography of 644 items).Further ReadingE.Farber, 1963, Nobel Prize Winners in Chemistry, New York.R.C.Olby, 1970, "The macromolecular concept and the origins of molecular biology", J. Chem. Ed. 47:168–74.LRD -
20 Voelcker, John Augustus
SUBJECT AREA: Agricultural and food technology[br]b. 24 June 1854 Cirencester, Englandd. 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 DistinctionsPresident, Royal Society of Public Analysts. Member of Council, Chemical Society, and Institute of Chemistry. Chairman, Farmers' Club.BibliographyMost 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 ReadingJ.H.Gilbert, 1937, obituary Journal of the Royal Agricultural Society of England, pp. 464–8.Sir E.John Russell, A History of Agricultural Science in Great Britain.APBiographical history of technology > Voelcker, John Augustus
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