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Subject as above

  • 1 subject as above

    Универсальный англо-русский словарь > subject as above

  • 2 on the subject noted above

    மேலே குறிக்கப்பட்ட பொருளின் பேரில்

    English-Tamil dictionary > on the subject noted above

  • 3 above

    A pron the above ( person) le susdit/la susdite m/f ; the above are all witnesses les personnes susnommées sont toutes témoins ; the above are all stolen vehicles les véhicules susmentionnés sont tous volés.
    B prep
    1 ( vertically higher) au-dessus de ; to live above a shop habiter au-dessus d'une boutique ; your name is above mine on the list ton nom est au-dessus du mien sur la liste ; the hills above Monte Carlo les collines qui surplombent Monte-Carlo ;
    2 ( north of) au nord de ; above this latitude au nord de cette latitude ;
    3 ( upstream of) en amont de ;
    4 ( morally) she's above such petty behaviour elle n'est pas capable d'un comportement aussi mesquin ; they're not above cheating/lying ils sont tout à fait capables de tricher /de mentir ; he's not above lending us a hand il n'hésitera pas à nous aider ;
    5 ( in preference to) par-dessus ; to admire sth above all others admirer qch par-dessus tout ; above all else par-dessus tout ; to value happiness above wealth accorder plus d'importance au bonheur qu'à l'argent ;
    6 (superior in status, rank) au-dessus de ; a general is above a corporal un général est au-dessus d'un caporal ; to be above sb in the world rankings être mieux placé que qn au classement mondial ; he thinks he's above us il se croit supérieur à nous ;
    7 ( greater than) au-dessus de ; above average au-dessus de la moyenne ; above the limit au-dessus de la limite ; children above the age of 12 les enfants âgés de plus de 12 ans ; to rise above dépasser [amount, percentage, limit, average] ; ⇒ over ;
    8 (transcending, beyond) above suspicion au-dessus de tout soupçon ; she's above criticism on ne peut pas la critiquer ; above reproach irréprochable ;
    9 ( too difficult for) to be above sb [subject, book] dépasser qn ;
    10 ( higher in pitch) au-dessus de ;
    11 ( over) I couldn't hear him above the sound of the drill je ne pouvais pas l'entendre à cause du bruit de la perceuse ; a shot was heard above the shouting on a entendu un coup de feu par-dessus les cris.
    C adj the above names/items les noms/articles susmentionnés fml or figurant ci-dessus.
    D adv
    1 ( higher up) a desk with a shelf above un bureau avec une étagère au-dessus ; the noise from the apartment above le bruit qui vient de l'appartement d'au-dessus ; the view from above la vue d'en haut ; an order from above un ordre qui vient d'en haut ; ideas imposed from above des idées imposées d'en haut ;
    2 ( earlier in the text) see above voir ci-dessus ; as stated above comme indiqué ci-dessus ;
    3 ( more) children of 12 and above les enfants âgés de 12 ans et plus ; tickets at £10 and above des billets à partir de dix livres ; those on incomes of £18,000 and above ceux dont les revenus atteignent ou dépassent 18 000 livres sterling ;
    4 ( in the sky) the sky up above was clear le ciel était dégagé ; to look up at the stars above lever les yeux vers les étoiles ; the powers above les puissances célestes ; in Heaven above aux cieux ; ⇒ cut.
    E above all adv phr surtout.
    to get above oneself ne plus se sentir ○.

    Big English-French dictionary > above

  • 4 subject as provided above

    Универсальный англо-русский словарь > subject as provided above

  • 5 The above quotation is subject to change through technical progress.

    Универсальный англо-русский словарь > The above quotation is subject to change through technical progress.

  • 6 SAB

    2) Техника: source address bus
    3) Бухгалтерия: Staff Accounting Bulletins
    4) Сокращение: Scientific Advisory Board (US Air Force)
    6) Физиология: Spontaneous abortion
    7) Электроника: Sensor/ Actuator Bus
    8) Вычислительная техника: Standards Activities Board
    9) Нефть: shallow auger bore
    10) Космонавтика: Solar Alignment Bay
    11) Фирменный знак: Sutherland, Asbill, & Brennan, L. L. P.
    12) Экология: Science Advisory Board
    13) Деловая лексика: Sixth Avenue Building, Swiss Admission Board
    14) Образование: Student Advisory Board
    15) Сахалин Ю: security advisory board
    16) Химическое оружие: Subject as above
    17) Имена и фамилии: Steve A. Baker
    18) Аэропорты: Saba, Netherlands Antilles

    Универсальный англо-русский словарь > SAB

  • 7 SAb

    2) Техника: source address bus
    3) Бухгалтерия: Staff Accounting Bulletins
    4) Сокращение: Scientific Advisory Board (US Air Force)
    6) Физиология: Spontaneous abortion
    7) Электроника: Sensor/ Actuator Bus
    8) Вычислительная техника: Standards Activities Board
    9) Нефть: shallow auger bore
    10) Космонавтика: Solar Alignment Bay
    11) Фирменный знак: Sutherland, Asbill, & Brennan, L. L. P.
    12) Экология: Science Advisory Board
    13) Деловая лексика: Sixth Avenue Building, Swiss Admission Board
    14) Образование: Student Advisory Board
    15) Сахалин Ю: security advisory board
    16) Химическое оружие: Subject as above
    17) Имена и фамилии: Steve A. Baker
    18) Аэропорты: Saba, Netherlands Antilles

    Универсальный англо-русский словарь > SAb

  • 8 Sab

    2) Техника: source address bus
    3) Бухгалтерия: Staff Accounting Bulletins
    4) Сокращение: Scientific Advisory Board (US Air Force)
    6) Физиология: Spontaneous abortion
    7) Электроника: Sensor/ Actuator Bus
    8) Вычислительная техника: Standards Activities Board
    9) Нефть: shallow auger bore
    10) Космонавтика: Solar Alignment Bay
    11) Фирменный знак: Sutherland, Asbill, & Brennan, L. L. P.
    12) Экология: Science Advisory Board
    13) Деловая лексика: Sixth Avenue Building, Swiss Admission Board
    14) Образование: Student Advisory Board
    15) Сахалин Ю: security advisory board
    16) Химическое оружие: Subject as above
    17) Имена и фамилии: Steve A. Baker
    18) Аэропорты: Saba, Netherlands Antilles

    Универсальный англо-русский словарь > Sab

  • 9 sab

    2) Техника: source address bus
    3) Бухгалтерия: Staff Accounting Bulletins
    4) Сокращение: Scientific Advisory Board (US Air Force)
    6) Физиология: Spontaneous abortion
    7) Электроника: Sensor/ Actuator Bus
    8) Вычислительная техника: Standards Activities Board
    9) Нефть: shallow auger bore
    10) Космонавтика: Solar Alignment Bay
    11) Фирменный знак: Sutherland, Asbill, & Brennan, L. L. P.
    12) Экология: Science Advisory Board
    13) Деловая лексика: Sixth Avenue Building, Swiss Admission Board
    14) Образование: Student Advisory Board
    15) Сахалин Ю: security advisory board
    16) Химическое оружие: Subject as above
    17) Имена и фамилии: Steve A. Baker
    18) Аэропорты: Saba, Netherlands Antilles

    Универсальный англо-русский словарь > sab

  • 10 Brunelleschi, Filippo

    [br]
    b. 1377 Florence, Italy
    d. 15 April 1446 Florence, Italy
    [br]
    Italian artist, craftsman and architect who introduced the Italian Renaissance style of classical architecture in the fifteenth century.
    [br]
    Brunelleschi was a true "Renaissance Man" in that he excelled in several disciplines, as did most artists of the Italian Renaissance of the fifteenth and sixteenth centuries. He was a goldsmith and sculptor; fifteenth-century writers acknowledge him as the first to study and demonstrate the principles of perspective, and he clearly possessed a deep mathematical understanding of the principles of architectural structure.
    Brunelleschi's Foundling Hospital in Florence, begun in 1419, is accepted as the first Renaissance building, one whose architectural style is based upon a blend of the classical principles and decoration of Ancient Rome and those of the Tuscan Romanesque. Brunelleschi went on to design a number of important Renaissance structures in Florence, such as the basilicas of San Lorenzo and Santo Spirito, the Pazzi Chapel at Santa Croce, and the unfinished church of Santa Maria degli Angeli.
    However, the artistic and technical feat for which Brunelleschi is most famed is the completion of Florence Cathedral by constructing a dome above the octagonal drum which had been completed in 1412. The building of this dome presented what appeared to be at the time insuperable problems, which had caused previous cathedral architects to shy away from tackling it. The drum was nearly 140 ft (43 m) in diameter and its base was 180 ft (55 m) above floor level: no wooden centering was possible because no trees long enough to span the gap could be found, and even if they had been available, the weight of such a massive framework would have broken centering beneath. In addition, the drum had no external abutment, so the weight of the dome must exert excessive lateral thrust. Aesthetically, the ideal Renaissance dome, like the Roman dome before it (for example, the Pantheon) was a hemisphere, but in the case of the Florence Cathedral such a structure would have been unsafe, so Brunelleschi created a pointed dome that would create less thrust laterally. He constructed eight major ribs of stone and, between them, sixteen minor ones, using a light infilling. He constructed a double-shell dome, which was the first of this type but is a design that has been followed by nearly all major architects since this date (for example Michelangelo's Saint Peter's in Rome, and Wren's Saint Paul's in London). Further strength is given by a herringbone pattern of masonry and brick infilling, and by tension chains of massive blocks, fastened with iron and with iron chains above, girding the dome at three levels. A large lantern finally stops the 50 ft (15.25 m) diameter eye at the point of the dome. Construction of the Florence Cathedral dome was begun on 7 August 1420 and was completed to the base of the lantern sixteen years later. It survives as the peak of Brunelleschi's Renaissance achievement.
    [br]
    Further Reading
    Peter Murray, 1963, The Architecture of the Italian Renaissance, Batsford, Ch. 2. Howard Saalman, 1980, Filippo Brunelleschi: The Cupola of Santa Maria del Fiore, Zwemmer.
    Piero Sanpaolesi, 1977, La Cupola di Santa Maria del Fiore: Il Progetto: La Costruzione, Florence: Edam.
    Eugenio Battisti, 1981, Brunelleschi: The Complete Work, Thames and Hudson.
    DY

    Biographical history of technology > Brunelleschi, Filippo

  • 11 Pliny the Elder (Gaius Plinius Secundus)

    SUBJECT AREA: Metallurgy
    [br]
    b. c. 23 AD Como, Italy
    d. 25 August 79 AD near Pompeii, Italy
    [br]
    Roman encyclopedic writer on the natural world.
    [br]
    Pliny was well educated in Rome, and for ten years or so followed a military career with which he was able to combine literary work, writing especially on historical subjects. He completed his duties c. 57 AD and concentrated on writing until he resumed his official career in 69 AD with administrative duties. During this last phase he began work on his only extant work, the thirty-seven "books" of his Historia Naturalis (Natural History), each dealing with a broad subject such as astronomy, geography, mineralogy, etc. His last post was the command of the fleet based at Misenum, which came to an end when he sailed too near Vesuvius during the eruption that engulfed Pompeii and he was overcome by the fumes.
    Pliny developed an insatiable curiosity about the natural world. Unlike the Greeks, the Romans made few original contributions to scientific thought and observation, but some made careful compilations of the learning and observations of Greek scholars. The most notable and influential of these was the Historia Naturalis. To the ideas about the natural world gleaned from earlier Greek authors, he added information about natural history, mineral resources, crafts and some technological processes, such as the extraction of metals from their ores, reported to him from the corners of the Empire. He added a few observations of his own, noted during travels on his official duties. Not all the reports were reliable, and the work often presents a tangled web of fact and fable. Gibbon described it as an immense register in which the author has "deposited the discoveries, the arts, and the errors of mankind". Pliny was indefatigable in his relentless note-taking, even dictating to his secretary while dining.
    During the Dark Ages and early Middle Ages in Western Europe, Pliny's Historia Naturalis was the largest known collection of facts about the natural world and was drawn upon freely by a succession of later writers. Its influence survived the influx into Western Europe, from the twelfth century, of translations of the works of Greek and Arab scholars. After the invention of printing in the middle of the fifteenth century, Pliny was the first work on a scientific subject to be printed, in 1469. Many editions followed and it may still be consulted with profit for its insights into technical knowledge and practice in the ancient world.
    [br]
    Bibliography
    The standard Latin text with English translation is that edited by H.Rackham et al.(1942– 63, Loeb Classical Library, London: Heinemann, 10 vols). The French version is by A.
    Ernout et al. (1947–, Belles Lettres, Paris).
    Further Reading
    The editions mentioned above include useful biographical and other details. For special aspects of Pliny, see K.C.Bailey, 1929–32, The Elder Pliny's Chapters on Chemical Subjects, London, 2 vols.
    LRD

    Biographical history of technology > Pliny the Elder (Gaius Plinius Secundus)

  • 12 Anthemios of Tralles

    [br]
    fl. sixth century AD Tralles, Lydia, Asia Minor
    [br]
    Greek architect, geometer, mathematician and physicist.
    [br]
    Tralles was a wealthy city in ancient Greece. Ruins of the city are situated on a plateau above the present-day Turkish city of Aydin, in Asia Minor, which is near to Ephesus. In 334 BC Tralles was used as a base by Alexander the Great and later it was occupied by the Romans. After the collapse of the western half of the Roman Empire in the fifth century AD Tralles remained a part of the Byzantine Empire until its destruction in 1282. Anthemios was one of the great sons of Tralles and was probably educated in Alexandria. He is especially famed as architect (with Isodorus of Miletos) of the great Church of Santa Sophia in Istanbul. This vast building, later a Turkish mosque and now a museum, was built for the Emperor Justinian between 532 and 537 AD. It was an early and, certainly for many centuries, the largest example of pendentive construction to support a dome. This form, using the spherical triangles of the pendentives, enabled a circular-based dome to be supported safely upon piers that stood on a square plan below. It gradually replaced the earlier squinch type of structure, though both forms of design stem from Middle Eastern origins. At Santa Sophia the dome rises to 180ft (55m) above floor level and has a diameter of over 100ft (30m). Together with Isodorus, Anthemios also worked upon the Church of the Holy Apostles in Istanbul.
    [br]
    Further Reading
    G.L.Huxley, 1959, Anthemius of Tralles: A Study in Later Greek Geometry, Cambridge, Mass.: Harvard University Press.
    Procopius, 1913, De Aedificiis, On the Buildings Constructed by the Emperor Justinian, Leipzig.
    Richard Krautheimer, 1965, Early Christian and Byzantine Architcture, Penguin.
    DY

    Biographical history of technology > Anthemios of Tralles

  • 13 Jenney, William Le Baron

    [br]
    b. 25 September 1832 Fairhaven, Massachusetts, USA
    d. 15 June 1907 Los Angeles, California, USA
    [br]
    American architect and engineer who pioneered a method of steel-framed construction that made the skyscraper possible.
    [br]
    Jenney's Home Insurance Building in Chicago was completed in 1885 but demolished in 1931. It was the first building to rise above ten to twelve storeys and was possible because it did not require immensely thick walls on the lower storeys to carry the weight above. Using square-sectioned cast-iron wall piers, hollow cylindrical cast-iron columns on the interior and, across these, steel and cast-iron beams and girders, Jenney produced a load-bearing metal framework independent of the curtain walling. Beams and girders were united by ties as well as being bolted to the vertical members, so providing a strong framework to take the building load. Jenney went on to build in Chicago the Second Leiter Building (1889–91) and, in 1891, the Manhattan Building. He played a considerable part in the planning of the 1893 Chicago World's Fair. Jenney is accepted as having been the founder of the Chicago school of architecture, and he trained many of the later noted architects and builders of the city, such as William Holabird, Martin Roche and Louis Sullivan.
    [br]
    Further Reading
    A.Woltersdorf, 1924, "The father of the skeleton frame building", Western Architecture 33.
    F.A.Randall, 1949, History of the Development of Building Construction in Chicago, Urbana: University of Illinois Press.
    C.Condit, 1964, The Chicago School of Architecture: A History of Commercial and Public Building in the Chicago Area 1875–1925, Chicago: University of Chicago Press.
    DY

    Biographical history of technology > Jenney, William Le Baron

  • 14 Lombe, John

    SUBJECT AREA: Textiles
    [br]
    b. c. 1693 probably Norwich, England
    d. 20 November 1722 Derby, England
    [br]
    English creator of the first successful powered textile mill in Britain.
    [br]
    John Lombe's father, Henry Lombe, was a worsted weaver who married twice. John was the second son of the second marriage and was still a baby when his father died in 1695. John, a native of the Eastern Counties, was apprenticed to a trade and employed by Thomas Cotchett in the erection of Cotchett's silk mill at Derby, which soon failed however. Lombe went to Italy, or was sent there by his elder half-brother, Thomas, to discover the secrets of their throwing machinery while employed in a silk mill in Piedmont. He returned to England in 1716 or 1717, bringing with him two expert Italian workmen.
    Thomas Lombe was a prosperous London merchant who financed the construction of a new water-powered silk mill at Derby which is said to have cost over £30,000. John arranged with the town Corporation for the lease of the island in the River Derwent, where Cotchett had erected his mill. During the four years of its construction, John first set up the throwing machines in other parts of the town. The machines were driven manually there, and their product helped to defray the costs of the mill. The silk-throwing machine was very complex. The water wheel powered a horizontal shaft that was under the floor and on which were placed gearwheels to drive vertical shafts upwards through the different floors. The throwing machines were circular, with the vertical shafts running through the middle. The doubled silk threads had previously been wound on bobbins which were placed on spindles with wire flyers at intervals around the outer circumference of the machine. The bobbins were free to rotate on the spindles while the spindles and flyers were driven by the periphery of a horizontal wheel fixed to the vertical shaft. Another horizontal wheel set a little above the first turned the starwheels, to which were attached reels for winding the silk off the bobbins below. Three or four sets of these spindles and reels were placed above each other on the same driving shaft. The machine was very complicated for the time and must have been expensive to build and maintain.
    John lived just long enough to see the mill in operation, for he died in 1722 after a painful illness said to have been the result of poison administered by an Italian woman in revenge for his having stolen the invention and for the injury he was causing the Italian trade. The funeral was said to have been the most superb ever known in Derby.
    [br]
    Further Reading
    Samuel Smiles, 1890, Men of Invention and Industry, London (probably the only biography of John Lombe).
    Rhys Jenkins, 1933–4, "Historical notes on some Derbyshire industries", Transactions of the Newcomen Society 14 (provides an acount of John Lombe and his part in the enterprise at Derby).
    R.L.Hills, 1970, Power in the Industrial Revolution, Manchester (briefly covers the development of early silk-throwing mills).
    W.English, 1969, The Textile Industry, London (includes a chapter on "Lombe's Silk Machine").
    P.Barlow, 1836, Treatise of Manufactures and Machinery of Great Britain, London (describes Lombe's mill and machinery, but it is not known how accurate the account may be).
    RLH

    Biographical history of technology > Lombe, John

  • 15 Telford, Thomas

    SUBJECT AREA: Canals, Civil engineering
    [br]
    b. 9 August 1757 Glendinning, Dumfriesshire, Scotland
    d. 2 September 1834 London, England.
    [br]
    Scottish civil engineer.
    [br]
    Telford was the son of a shepherd, who died when the boy was in his first year. Brought up by his mother, Janet Jackson, he attended the parish school at Westerkirk. He was apprenticed to a stonemason in Lochmaben and to another in Langholm. In 1780 he walked from Eskdale to Edinburgh and in 1872 rode to London on a horse that he was to deliver there. He worked for Sir William Chambers as a mason on Somerset House, then on the Eskdale house of Sir James Johnstone. In 1783–4 he worked on the new Commissioner's House and other buildings at Portsmouth dockyard.
    In late 1786 Telford was appointed County Surveyor for Shropshire and moved to Shrewsbury Castle, with work initially on the new infirmary and County Gaol. He designed the church of St Mary Magdalene, Bridgnorth, and also the church at Madley. Telford built his first bridge in 1790–2 at Montford; between 1790 and 1796 he built forty-five road bridges in Shropshire, including Buildwas Bridge. In September 1793 he was appointed general agent, engineer and architect to the Ellesmere Canal, which was to connect the Mersey and Dee rivers with the Severn at Shrewsbury; William Jessop was Principal Engineer. This work included the Pont Cysyllte aqueduct, a 1,000 ft (305 m) long cast-iron trough 127 ft (39 m) above ground level, which entailed an on-site ironworks and took ten years to complete; the aqueduct is still in use today. In 1800 Telford put forward a plan for a new London Bridge with a single cast-iron arch with a span of 600 ft (183 m) but this was not built.
    In 1801 Telford was appointed engineer to the British Fisheries Society "to report on Highland Communications" in Scotland where, over the following eighteen years, 920 miles (1,480 km) of new roads were built, 280 miles (450 km) of the old military roads were realigned and rebuilt, over 1,000 bridges were constructed and much harbour work done, all under Telford's direction. A further 180 miles (290 km) of new roads were also constructed in the Lowlands of Scotland. From 1804 to 1822 he was also engaged on the construction of the Caledonian Canal: 119 miles (191 km) in all, 58 miles (93 km) being sea loch, 38 miles (61 km) being Lochs Lochy, Oich and Ness, 23 miles (37 km) having to be cut.
    In 1808 he was invited by King Gustav IV Adolf of Sweden to assist Count Baltzar von Platen in the survey and construction of a canal between the North Sea and the Baltic. Telford surveyed the 114 mile (183 km) route in six weeks; 53 miles (85 km) of new canal were to be cut. Soon after the plans for the canal were completed, the King of Sweden created him a Knight of the Order of Vasa, an honour that he would have liked to have declined. At one time some 60,000 soldiers and seamen were engaged on the work, Telford supplying supervisors, machinery—including an 8 hp steam dredger from the Donkin works and machinery for two small paddle boats—and ironwork for some of the locks. Under his direction an ironworks was set up at Motala, the foundation of an important Swedish industrial concern which is still flourishing today. The Gotha Canal was opened in September 1832.
    In 1811 Telford was asked to make recommendations for the improvement of the Shrewsbury to Holyhead section of the London-Holyhead road, and in 1815 he was asked to survey the whole route from London for a Parliamentary Committee. Construction of his new road took fifteen years, apart from the bridges at Conway and over the Menai Straits, both suspension bridges by Telford and opened in 1826. The Menai bridge had a span of 579 ft (176 m), the roadway being 153 ft (47 m) above the water level.
    In 1817 Telford was appointed Engineer to the Exchequer Loan Commission, a body set up to make capital loans for deserving projects in the hard times that followed after the peace of Waterloo. In 1820 he became the first President of the Engineers Institute, which gained its Royal Charter in 1828 to become the Institution of Civil Engineers. He was appointed Engineer to the St Katharine's Dock Company during its construction from 1825 to 1828, and was consulted on several early railway projects including the Liverpool and Manchester as well as a number of canal works in the Midlands including the new Harecastle tunnel, 3,000 ft (914 m) long.
    Telford led a largely itinerant life, living in hotels and lodgings, acquiring his own house for the first time in 1821, 24 Abingdon Street, Westminster, which was partly used as a school for young civil engineers. He died there in 1834, after suffering in his later years from the isolation of deafness. He was buried in Westminster Abbey.
    [br]
    Principal Honours and Distinctions
    FRSE 1803. Knight of the Order of Vasa, Sweden 1808. FRS 1827. First President, Engineers Insitute 1820.
    Further Reading
    L.T.C.Rolt, 1979, Thomas Telford, London: Penguin.
    C.Hadfield, 1993, Thomas Telford's Temptation, London: M. \& M.Baldwin.
    IMcN

    Biographical history of technology > Telford, Thomas

  • 16 Moissan, Ferdinand-Frédéric-Henri

    SUBJECT AREA: Chemical technology
    [br]
    b. 28 September 1852 Paris, France
    d. 20 February 1907 Paris, France
    [br]
    French chemist, the first to isolate fluorine, and a pioneer in high-temperature technology.
    [br]
    His family, of modest means, moved in 1864 to Meaux, where he attended the municipal college; he returned to Paris before completing his education and apprenticed himself to a pharmacist. In 1872 he began work as a laboratory assistant at the Musée d'Histoire Naturelle, while continuing studies in chemistry. He qualified as a pharmacist at the Ecole Supérieure de Pharmacie in 1879, and by this time he had decided that his main interest was inorganic chemistry. His early investigations concerned the oxides of iron and related metals; his work attracted the favourable attention of Sainte-Claire Deville and was the subject of his doctoral thesis. In 1882 Moissan married Leonie Lugan, whose father provided generous financial support, enabling him to pursue his researches with greater freedom and security. He became, successively, Professor of Toxicology at the Ecole in 1886 and of Inorganic Chemistry in 1899. In 1884 Moissan began both his investigation of the compounds of fluorine and his attempts to isolate the highly reactive element itself. Previous attempts by chemists had ended in failure and sometimes injury. Moissan's health, too, was affected, but in June 1886 he succeeded in isolating fluorine by electrolysing potassium fluoride in hydrogen fluoride at −50°C (−58°F) in platinum apparatus. He was then able to prepare further compounds of fluorine, some of technological importance, such as carbon tetrafluoride. At the same time, Moissan turned his attention to the making of artificial diamonds. To achieve this, he devised his celebrated electric-arc furnace; this was first demonstrated in December 1892 and consisted of two lime blocks placed one above the other, with a cavity for a crucible and two grooves for carbon electrodes, and could attain a temperature of 3,500°C (6,332°F). It seemed at first that he had succeeded in making diamonds, but this attempt is now regarded as a failure. Nevertheless, with the aid of his furnace he was able to produce and study many substances of technological importance, including refractory oxides, borides and carbides, and such metals as manganese, chromium, uranium, tungsten, vanadium, molybdenum, titanium and zirconium; many of these materials had useful applications in the chemical and metallurgical industries (e.g. calcium carbide became the main source of acetylene).
    [br]
    Principal Honours and Distinctions
    Nobel Prize in Chemistry 1906.
    Bibliography
    There are several listings of his more than 300 publications, such as Lebeau, cited below. Major works are Le Four électrique (1897, Paris) and Le Fluor et ses composés (1900, Paris).
    Further Reading
    Centenaire de l'Ecole supérieure de pharmacie de l'Université de Paris 1803–1903,
    1904, Paris, pp. 249–57.
    B.Harrow, 1927, Eminent Chemists of Our Time, 2nd edn, New York, pp. 135–54, 374– 88.
    P.Lebeau, 1908, "Notice sur la vie et les travaux de Henri Moissan", Bulletin Soc. chim. de France (4 ser.) 3:i–xxxviii.
    LRD

    Biographical history of technology > Moissan, Ferdinand-Frédéric-Henri

  • 17 Appleton, Sir Edward Victor

    [br]
    b. 6 September 1892 Bradford, England
    d. 21 April 1965 Edinburgh, Scotland
    [br]
    English physicist awarded the Nobel Prize for Physics for his discovery of the ionospheric layer, named after him, which is an efficient reflector of short radio waves, thereby making possible long-distance radio communication.
    [br]
    After early ambitions to become a professional cricketer, Appleton went to St John's College, Cambridge, where he studied under J.J.Thompson and Ernest Rutherford. His academic career interrupted by the First World War, he served as a captain in the Royal Engineers, carrying out investigations into the propagation and fading of radio signals. After the war he joined the Cavendish Laboratory, Cambridge, as a demonstrator in 1920, and in 1924 he moved to King's College, London, as Wheatstone Professor of Physics.
    In the following decade he contributed to developments in valve oscillators (in particular, the "squegging" oscillator, which formed the basis of the first hard-valve time-base) and gained international recognition for research into electromagnetic-wave propagation. His most important contribution was to confirm the existence of a conducting ionospheric layer in the upper atmosphere capable of reflecting radio waves, which had been predicted almost simultaneously by Heaviside and Kennelly in 1902. This he did by persuading the BBC in 1924 to vary the frequency of their Bournemouth transmitter, and he then measured the signal received at Cambridge. By comparing the direct and reflected rays and the daily variation he was able to deduce that the Kennelly- Heaviside (the so-called E-layer) was at a height of about 60 miles (97 km) above the earth and that there was a further layer (the Appleton or F-layer) at about 150 miles (240 km), the latter being an efficient reflector of the shorter radio waves that penetrated the lower layers. During the period 1927–32 and aided by Hartree, he established a magneto-ionic theory to explain the existence of the ionosphere. He was instrumental in obtaining agreement for international co-operation for ionospheric and other measurements in the form of the Second Polar Year (1932–3) and, much later, the International Geophysical Year (1957–8). For all this work, which made it possible to forecast the optimum frequencies for long-distance short-wave communication as a function of the location of transmitter and receiver and of the time of day and year, in 1947 he was awarded the Nobel Prize for Physics.
    He returned to Cambridge as Jacksonian Professor of Natural Philosophy in 1939, and with M.F. Barnett he investigated the possible use of radio waves for radio-location of aircraft. In 1939 he became Secretary of the Government Department of Scientific and Industrial Research, a post he held for ten years. During the Second World War he contributed to the development of both radar and the atomic bomb, and subsequently served on government committees concerned with the use of atomic energy (which led to the establishment of Harwell) and with scientific staff.
    [br]
    Principal Honours and Distinctions
    Knighted (KCB 1941, GBE 1946). Nobel Prize for Physics 1947. FRS 1927. Vice- President, American Institute of Electrical Engineers 1932. Royal Society Hughes Medal 1933. Institute of Electrical Engineers Faraday Medal 1946. Vice-Chancellor, Edinburgh University 1947. Institution of Civil Engineers Ewing Medal 1949. Royal Medallist 1950. Institute of Electrical and Electronics Engineers Medal of Honour 1962. President, British Association 1953. President, Radio Industry Council 1955–7. Légion d'honneur. LLD University of St Andrews 1947.
    Bibliography
    1925, joint paper with Barnett, Nature 115:333 (reports Appleton's studies of the ionosphere).
    1928, "Some notes of wireless methods of investigating the electrical structure of the upper atmosphere", Proceedings of the Physical Society 41(Part III):43. 1932, Thermionic Vacuum Tubes and Their Applications (his work on valves).
    1947, "The investigation and forecasting of ionospheric conditions", Journal of the
    Institution of Electrical Engineers 94, Part IIIA: 186 (a review of British work on the exploration of the ionosphere).
    with J.F.Herd \& R.A.Watson-Watt, British patent no. 235,254 (squegging oscillator).
    Further Reading
    Who Was Who, 1961–70 1972, VI, London: A. \& C.Black (for fuller details of honours). R.Clark, 1971, Sir Edward Appleton, Pergamon (biography).
    J.Jewkes, D.Sawers \& R.Stillerman, 1958, The Sources of Invention.
    KF

    Biographical history of technology > Appleton, Sir Edward Victor

  • 18 Baxter, George

    SUBJECT AREA: Paper and printing
    [br]
    b. 31 July 1804 Lewes, Sussex, England
    d. 11 January 1867 Sydenham, London, England
    [br]
    English pioneer in colour printing.
    [br]
    The son of a printer, Baxter was apprenticed to a wood engraver and there began his search for improved methods of making coloured prints, hitherto the perquisite of the rich, in order to bring them within reach of a wider public. After marriage to the daughter of Robert Harrild, founder of the printing firm of Harrild \& Co., he set up house in London, where he continued his experiments on colour while maintaining the run-of-the-mill work that kept the family.
    The nineteenth century saw a tremendous advance in methods of printing pictures, produced as separate prints or as book illustrations. For the first three decades colour was supplied by hand, but from the 1830s attempts were made to print in colour, using a separate plate for each one. Coloured prints were produced by chromolithography and relief printing on a small scale. Prints were first made with the latter method on a commercial scale by Baxter with a process that he patented in 1835. He generally used a key plate that was engraved, aquatinted or lithographed; the colours were then printed separately from wood or metal blocks. Baxter was a skilful printer and his work reached a high standard. An early example is the frontispiece to Robert Mudie's Summer (1837). In 1849 he began licensing his patent to other printers, and after the Great Exhibition of 1851 colour relief printing came into its own. Of the plethora of illustrated literature that appeared then, Baxter's Gems of the Great Exhibition was one of the most widely circulated souvenirs of the event.
    Baxter remained an active printer through the 1850s, but increasing competition from the German coloured lithographic process undermined his business and in 1860 he gave up the unequal struggle. In May of that year, all his oil pictures, engravings and blocks went up for auction, some 3,000 lots altogether. Baxter retired to Sydenham, then a country place, making occasional visits to London until injuries sustained in a mishap while he was ascending a London omnibus led to his death. Above all, he helped to initiate the change from the black and white world of pre-Victorian literature to the riotously colourful world of today.
    [br]
    Further Reading
    C.T.Courtney Lewis, 1908, George Baxter, the Picture Printer, London: Sampson Lowe, Marsden (the classic account).
    M.E.Mitzmann, 1978, George Baxter and the Baxter Prints, Newton Abbot: David \& Charles.
    LRD

    Biographical history of technology > Baxter, George

  • 19 Behr, Fritz Bernhard

    [br]
    b. 9 October 1842 Berlin, Germany
    d. 25 February 1927
    [br]
    German (naturalized British in 1876) engineer, promoter of the Lartigue monorail system.
    [br]
    Behr trained as an engineer in Britain and had several railway engineering appointments before becoming associated with C.F.M.-T. Lartigue in promoting the Lartigue monorail system in the British Isles. In Lartigue's system, a single rail was supported on trestles; vehicles ran on the rail, their bodies suspended pannier-fashion, stabilized by horizontal rollers running against light guide rails fixed to the sides of the trestles. Behr became Managing Director of the Listowel \& Ballybunion Railway Company, which in 1888 opened its Lartigue system line between those two places in the south-west of Ireland. Three locomotives designed by J.T.A. Mallet were built for the line by Hunslet Engine Company, each with two horizontal boilers, one either side of the track. Coaches and wagons likewise were in two parts. Technically the railway was successful, but lack of traffic caused the company to go bankrupt in 1897: the railway continued to operate until 1924.
    Meanwhile Behr had been thinking in terms far more ambitious than a country branch line. Railway speeds of 150mph (240km/h) or more then lay far in the future: engineers were uncertain whether normal railway vehicles would even be stable at such speeds. Behr was convinced that a high-speed electric vehicle on a substantial Lartigue monorail track would be stable. In 1897 he demonstrated such a vehicle on a 3mile (4.8km) test track at the Brussels International Exhibition. By keeping the weight of the motors low, he was able to place the seats above rail level. Although the generating station provided by the Exhibition authorities never operated at full power, speeds over 75mph (120 km/h) were achieved.
    Behr then promoted the Manchester-Liverpool Express Railway, on which monorail trains of this type running at speeds up to 110mph (177km/h) were to link the two cities in twenty minutes. Despite strong opposition from established railway companies, an Act of Parliament authorizing it was made in 1901. The Act also contained provision for the Board of Trade to require experiments to prove the system's safety. In practice this meant that seven miles of line, and a complete generating station to enable trains to travel at full speed, must be built before it was known whether the Board would give its approval for the railway or not. Such a condition was too severe for the scheme to attract investors and it remained stillborn.
    [br]
    Further Reading
    H.Fayle, 1946, The Narrow Gauge Railways of Ireland, Greenlake Publications, Part 2, ch. 2 (describes the Listowel \& Ballybunion Railway and Behr's work there).
    D.G.Tucker, 1984, "F.B.Behr's development of the Lartigue monorail", Transactions of
    the Newcomen Society 55 (covers mainly the high speed lines).
    See also: Brennan, Louis
    PJGR

    Biographical history of technology > Behr, Fritz Bernhard

  • 20 Bosch, Robert August

    [br]
    b. 23 September 1861 Albeck, near Ulm, Germany
    d. 9 March 1942 Stuttgart, Germany
    [br]
    German engineer, industrialist and pioneer of internal combustion engine electrical systems.
    [br]
    Robert was the eighth of twelve children of the landlord of a hotel in the village of Albeck. He wanted to be a botanist and zoologist, but at the age of 18 he was apprenticed as a precision mechanic. He travelled widely in the south of Germany, which is unusual for an apprenticeship. In 1884, he went to the USA, where he found employment with Thomas A. Edison and his colleague, the German electrical engineer Siegmund Bergmann. During this period he became interested and involved in the rights of workers.
    In 1886 he set up his own workshop in Stuttgart, having spent a short time with Siemens in England. He built up a sound reputation for quality, but the firm outgrew its capital and in 1892 he had to sack nearly all his employees. Fortunately, among the few that he was able to retain were Arnold Zähringer, who later became Manager, and an apprentice, Gottlieb Harold. These two, under Bosch, were responsible for the development of the low-tension (1897) and the high-tension (1902) magneto. They also developed the Bosch sparking plug, again in 1902. The distributor for multi-cylinder engines followed in 1910. These developments, with a strong automotive bias, were stimulated by Bosch's association with Frederick Simms, an Englishman domiciled in Hamburg, who had become a director of Daimler in Canstatt and had secured the UK patent rights of the Daimler engine. Simms went on to invent, in about 1898, a means of varying ignition timing with low-tension magnetos.
    It must be emphasized, as pointed out above, that the invention of neither type of magneto was due to Bosch. Nikolaus Otto introduced a crude low-tension magneto in 1884, but it was not patented in Germany, while the high-tension magneto was invented by Paul Winand, a nephew of Otto's partner Eugen Langen, in 1887, this patent being allowed to lapse in 1890.
    Bosch's social views were advanced for his time. He introduced an eight-hour day in 1906 and advocated industrial arbitration and free trade, and in 1932 he wrote a book on the prevention of world economic crises, Die Verhütung künftiger Krisen in der Weltwirtschaft. Other industrialists called him the "Red Bosch" because of his short hours and high wages; he is reputed to have replied, "I do not pay good wages because I have a lot of money, I have a lot of money because I pay good wages." The firm exists to this day as the giant multi-national company Robert Bosch GmbH, with headquarters still in Stuttgart.
    [br]
    Further Reading
    T.Heuss, 1994, Robert Bosch: His Life and Achievements (trans. S.Gillespie and J. Kapczynski), New York: Henry Holt \& Co.
    JB

    Biographical history of technology > Bosch, Robert August

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