to study at the University of Heidelberg

f; -, -en; UNIV. university; USA, nur für den ersten Grad: auch college; die Freie Universität Berlin the Free University of Berlin; die Universität besuchen go to university (Am. auch college); an der Universität at university, Am. auch in college; auf welcher Universität ist er? which university does he go to?; an der Freiburger Universität studieren / lehren study / teach at the University of Freiburg ( oder at Freiburg University); als Studentin der Rechtswissenschaften an der Universität Freiburg immatrikuliert sein be (registered as) a student of law ( oder law student) at the University of Freiburg; technisch

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varsity; university

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f -, -en

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f university

die \Universität München the University of Munich

an der \Universität studieren to study at university

die \Universität besuchen to attend university

auf die \Universität gehen (fam) to go to university

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Universität f; -, -en; UNIV university; USA, nur für den ersten Grad: auch college;

die Freie Universität Berlin the Free University of Berlin;

die Universität besuchen go to university (US auch college);

an der Universität at university, US auch in college;

auf welcher Universität ist er? which university does he go to?;

an der Freiburger Universität studieren/lehren study/teach at the University of Freiburg ( oder at Freiburg University);

als Studentin der Rechtswissenschaften an der Universität Freiburg immatrikuliert sein be (registered as) a student of law ( oder law student) at the University of Freiburg; → technisch

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university n.

varsity n.

SUBJECT AREA: Chemical technology

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Bunsen's father was Librarian and Professor of Linguistics at Göttingen University and Bunsen himself studied chemistry there. Obtaining his doctorate at the age of only 19, he travelled widely, meeting some of the leading chemists of the day and visiting many engineering works. On his return he held various academic posts, finally as Professor of Chemistry at Heidelberg in 1852, a post he held until his retirement in 1889.

During 1837–41 Bunsen studied a series of compounds shown to contain the cacodyl (CH3)2As-group or radical. The elucidation of the structure of these compounds gave support to the radical theory in organic chemistry and earned him fame, but it also cost him the sight of an eye and other ill effects resulting from these dangerous and evil-smelling substances. With the chemist Gustav Robert Kirchhoff (1824–87), Bunsen pioneered the use of spectroscopy in chemical analysis from 1859, and with its aid he discovered the elements caesium and rubidium. He developed the Bunsen cell, a zinc-carbon primary cell, with which he isolated a number of alkali and other metals by electrodeposition from solution or electrolysis of fused chlorides.

Bunsen's main work was in chemical analysis, in the course of which he devised some important laboratory equipment, such as a filter pump. The celebrated Bunsen gas burner was probably devised by his technician Peter Desdega. During 1838–44 Bunsen applied his methods of gas analysis to the study of the gases produced by blast furnaces for the production of cast iron. He demonstrated that no less than 80 per cent of the heat was lost during smelting, and that valuable gaseous by-products, such as ammonia, were also lost. Lyon Playfair in England was working along similar lines, and in 1848 the two men issued a paper, "On the gases evolved from iron furnaces", to draw attention to these drawbacks.

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SUBJECT AREA: Medical technology

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Quincke trained in medicine at Berlin, Würzburg and Heidelberg Universities. Following three years as a postgraduate at the University of Berlin, he was appointed Professor of Internal Medicine at Berne. Five years later he was appointed to the Chair in Kiel that he held for the next thirty years.

During this time his researches included the study of angioneurotic oedema, blood pressure and the systemic responses to carotid sinus stimulation. His studies of lumbar puncture procedures in animals led to the use of the technique in humans, and in 1911 he reported on the results of using the procedure twenty-two times in ten patients.

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SUBJECT AREA: Chemical technology

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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.

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