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Journal of Industrial Engineering

  • 1 Haynes, Elwood

    [br]
    b. 14 October 1857 Portland, Indiana, USA
    d. 13 April 1925 Kokomo, Indiana, USA
    [br]
    American inventor ofStellite cobalt-based alloys, early motor-car manufacturer and pioneer in stainless steels.
    [br]
    From his early years, Haynes was a practising Presbyterian and an active prohibitionist. He graduated in 1881 at Worcester, Massachusetts, and a spell of teaching in his home town was interrupted in 1884–5 while he attended the Johns Hopkins University in Baltimore. In 1886 he became permanently diverted by the discovery of natural gas in Portland. He was soon appointed Superintendent of the local gas undertaking, and then in 1890 he was hired by the Indiana Natural Gas \& Oil Company. While continuing his gas-company employment until 1901, Haynes conducted numerous metallurgical experiments. He also designed an automobile: this led to the establishment of the Haynes- Apperson Company at Kokomo as one of the earliest motor-car makers in North America. From 1905 the firm traded as the Haynes Automobile Company, and before its bankruptcy in 1924 it produced more than 50,000 cars. After 1905, Haynes found the first "Stellite" alloys of cobalt and chromium, and in 1910 he was publicizing the patented material. He then discovered the valuable hardening effect of tungsten, and in 1912 began applying the "improved" Stellite to cutting tools. Three years later, the Haynes Stellite Company was incorporated, with Haynes as President, to work the patents. It was largely from this source that Haynes became a millionaire in 1920. In April 1912, Haynes's attempt to patent the use of chromium with iron to render the product rustless was unsuccessful. However, he re-applied for a US patent on 12 March 1915 and, although this was initially rejected, he persevered and finally obtained recognition of his modified claim. The American Stainless Steel Company licensed the patents of Brearley and Haynes jointly in the USA until the 1930s.
    [br]
    Principal Honours and Distinctions
    John Scott Medal 1919 (awarded for useful inventions).
    Bibliography
    Haynes was the author of more than twenty published papers and articles, among them: 1907, "Materials for automobiles", Proceedings of the American Society of Mechanical
    Engineers 29:1,597–606; 1910, "Alloys of nickel and cobalt with chromium", Journal of Industrial Engineering
    and Chemistry 2:397–401; 1912–13, "Alloys of cobalt with chromium and other metals", Transactions of the American Institute of 'Mining Engineers 44:249–55;
    1919–20, "Stellite and stainless steel", Proceedings of the Engineering Society of West
    Pennsylvania 35:467–74.
    1 April 1919, US patent no. 1,299,404 (stainless steel).
    The four US patents worked by the Haynes Stellite Company were: 17 December 1907, patent no. 873,745.
    1 April 1913, patent no. 1,057,423.
    1 April 1913, patent no. 1,057, 828.
    17 August 1915, patent no. 1,150, 113.
    Further Reading
    R.D.Gray, 1979, Alloys and Automobiles. The Life of Elwood Haynes, Indianapolis: Indiana Historical Society (a closely documented biography).
    JKA

    Biographical history of technology > Haynes, Elwood

  • 2 ingeniería

    f.
    engineering.
    * * *
    1 engineering
    * * *
    noun f.
    * * *

    ingeniería de sistemas — (Inform) systems engineering

    * * *
    femenino engineering
    * * *
    = engineering, engineering science.
    Ex. For example, a book on Bridges should be entered under Bridges and not under a broader heading such as engineering, nor doubly under both headings.
    Ex. The primary focus of the journal is on stochastic modelling in the physical and engineering sciences.
    ----
    * creado por la ingeniería genética = genetically engineered.
    * industria de la ingeniería eléctrica, la = electrical engineering industry, the.
    * industria de la ingeniería química, la = chemical engineering industry, the.
    * ingeniería aeroespacial = aerospace engineering.
    * ingeniería agrónoma = agricultural engineering.
    * ingeniería biológica = bioengineering.
    * ingeniería civil = civil engineering.
    * ingeniería computacional = computer engineering.
    * ingeniería de aviación = aviation engineering.
    * ingeniería de caminos = civil engineering.
    * ingeniería de canales = canal engineering.
    * ingeniería de control = control engineering.
    * ingeniería de la construcción = construction engineering.
    * ingeniería del automóvil = automotive engineering, car engineering.
    * ingeniería del conocimiento = knowledge engineering.
    * ingeniería de minas = mining engineering.
    * ingeniería de software = software engineering.
    * ingeniería eléctrica = electrical engineering.
    * ingeniería electrónica = electronic engineering.
    * ingeniería forense = forensic engineering.
    * ingeniería forestal = forestry.
    * ingeniería genética = genetic engineering.
    * ingeniería informática = computer engineering.
    * ingeniería marina = marine engineering.
    * ingeniería mecánica = mechanical engineering.
    * ingeniería minera = mining engineering.
    * ingeniería municipal = municipal engineering.
    * ingeniería nuclear = nuclear engineering.
    * ingeniería química = chemical engineering.
    * ingeniería sanitaria = sanitary engineering.
    * * *
    femenino engineering
    * * *
    = engineering, engineering science.

    Ex: For example, a book on Bridges should be entered under Bridges and not under a broader heading such as engineering, nor doubly under both headings.

    Ex: The primary focus of the journal is on stochastic modelling in the physical and engineering sciences.
    * creado por la ingeniería genética = genetically engineered.
    * industria de la ingeniería eléctrica, la = electrical engineering industry, the.
    * industria de la ingeniería química, la = chemical engineering industry, the.
    * ingeniería aeroespacial = aerospace engineering.
    * ingeniería agrónoma = agricultural engineering.
    * ingeniería biológica = bioengineering.
    * ingeniería civil = civil engineering.
    * ingeniería computacional = computer engineering.
    * ingeniería de aviación = aviation engineering.
    * ingeniería de caminos = civil engineering.
    * ingeniería de canales = canal engineering.
    * ingeniería de control = control engineering.
    * ingeniería de la construcción = construction engineering.
    * ingeniería del automóvil = automotive engineering, car engineering.
    * ingeniería del conocimiento = knowledge engineering.
    * ingeniería de minas = mining engineering.
    * ingeniería de software = software engineering.
    * ingeniería eléctrica = electrical engineering.
    * ingeniería electrónica = electronic engineering.
    * ingeniería forense = forensic engineering.
    * ingeniería forestal = forestry.
    * ingeniería genética = genetic engineering.
    * ingeniería informática = computer engineering.
    * ingeniería marina = marine engineering.
    * ingeniería mecánica = mechanical engineering.
    * ingeniería minera = mining engineering.
    * ingeniería municipal = municipal engineering.
    * ingeniería nuclear = nuclear engineering.
    * ingeniería química = chemical engineering.
    * ingeniería sanitaria = sanitary engineering.

    * * *
    engineering
    Compuestos:
    agricultural engineering
    bioengineering
    civil engineering
    precision engineering
    systems engineering
    software engineering
    electrical engineering
    electronic engineering
    genetic engineering
    industrial engineering
    mechanical engineering
    * * *

     

    ingeniería sustantivo femenino
    engineering;

    ingeniería sustantivo femenino engineering
    ingeniería genética, genetic engineering

    ' ingeniería' also found in these entries:
    Spanish:
    aeronáutica
    - aeronáutico
    - eminencia
    English:
    electrical engineering
    - engineering
    - genetic engineering
    * * *
    engineering;
    Fig
    una obra de ingeniería a major operation
    ingeniería civil civil engineering;
    ingeniería financiera financial engineering;
    ingeniería genética genetic engineering;
    ingeniería industrial industrial engineering;
    ingeniería naval marine engineering;
    ingeniería de sistemas system(s) engineering;
    ingeniería social social engineering
    * * *
    f engineering
    * * *
    : engineering
    * * *
    ingeniería n engineering

    Spanish-English dictionary > ingeniería

  • 3 principal

    adj.
    1 main, principal.
    lo principal es… the main thing is…
    puerta principal front door
    2 chief, big-league, blue-chip, boss.
    m.
    first floor (British), second floor (United States) (plant).
    * * *
    1 main, chief
    1 (piso) first floor, US second floor
    * * *
    adj.
    2) main
    * * *
    1. ADJ
    1) (=más importante) [gen] principal, main; [crítico, adversario] foremost; [piso] first, second (EEUU)
    2) [persona, autoridad] illustrious
    2. SM
    1) (=persona) head, chief, principal
    2) (Econ) principal, capital
    3) (Teat) dress circle
    4) (=piso) first floor, second floor (EEUU)
    * * *
    I
    adjetivo <entrada/carretera/calle> main

    el papel principal — the main part o leading role

    lo principal es que... — the main thing is that...

    II
    a) (Fin) principal, capital
    b) (en teatro, cine) dress circle, mezzanine (AmE)
    * * *
    = capital, chief, dominant, essential, foremost, leading, main, major, primary, principal, top, key, lead, premier, overriding, prime, staple, number one, top-of-mind, cardinal, master.
    Ex. Following internal discussion, it was agreed that a new library should be given the University's top priority in any forthcoming capital building project.
    Ex. This section reviews the chief factors that must be taken into account in selecting an appropriate software package.
    Ex. English is the dominant language for the dissemination of information.
    Ex. The preceding chapter has introduced the essential characteristics of bibliographic descriptions.
    Ex. Foremost among those recommendations was one pertaining to the development of a UNIMARC format for authorities.
    Ex. In addition to her reputation as a leading expert in information control, Phyllis Richmond is another of ISAD's official reviewers of the AACR2's draft.
    Ex. The main rule, however, is do not have loose cables hanging all over the place -- not only is it unsightly but also extremely dangerous.
    Ex. This scheme aims for a more helpful order than the major schemes, by following the groupings of subjects as they are taught in schools.
    Ex. The primary components in this area are place of publication, publisher's name and date of publication (that is, the date of edition).
    Ex. If responsibility is shared between mor than three persons or corporate bodies (and no principal author is indicated), then entry is made under the title.
    Ex. ISI's indexes let you locate research in the world's top journals by citation, title word, author, institution, or journal.
    Ex. This meeting brought together representatives of the key organizations in the community.
    Ex. The United Nations declared 1990 as International Literacy Year (ILY) with Unesco designated as the lead agency for ILY.
    Ex. It is the country's premier research library for the natural sciences, engineering, technology and industrial property.
    Ex. Consequently, the overriding demand made by the academic community is bibliographical in nature.
    Ex. For instance, my sporting goods store is on the ground level and to the right -- prime mall location.
    Ex. UK libraries and the BBC Continuing Education have the same staple customer group.
    Ex. Eyestrain is the number one complaint of computer users.
    Ex. Computer security is a top-of-mind subject for both IT managers and their corporate bosses.
    Ex. To underestimate your enemy is committing the cardinal mistake and often the last you'll make!.
    Ex. The great significance of a fully developed network will be that it will relieve libraries of the necessity of maintaining their own copies of the master data base.
    ----
    * actividad principal = core activity.
    * actor principal = lead character, leading man.
    * actor principal, el = main character, the, main actor, the.
    * administrador principal = top administrator.
    * apartarse de los caminos principales = go + off-road.
    * asesor principal = senior adviser, senior consultant.
    * calle principal, la = high street, the, main street, the.
    * carretera principal = major road.
    * comida principal = main meal.
    * consejero principal = senior adviser, senior consultant.
    * director principal = senior director.
    * dormitorio principal = master bedroom, master suite.
    * el principal = the number one.
    * en la corriente principal de = in the mainstream of.
    * en la tendencia principal de = in the mainstream of.
    * frase que recoge el tema principal del artículo = topic sentence.
    * fuente principal de información = chief source of information.
    * guía principal = guiding principle.
    * la cosa principal = the number one thing.
    * la parte principal de = the bulk of.
    * motivo principal = prime cause.
    * papel principal = title role.
    * parte principal del texto = meat of the text.
    * personaje principal = lead character.
    * personaje principal, el = main character, the, main actor, the.
    * plato principal = entrée, main entrée.
    * ponencia principal = keynote presentation.
    * primero y principal = first and foremost.
    * principal razón = prime cause.
    * principal sospechoso = leading suspect.
    * principal sostén de la familia = breadwinner [bread winner].
    * programa principal = Core Programme.
    * protagonista principal = centrepiece [centerpiece, -USA], lead character.
    * protagonista principal, el = main character, the, main actor, the.
    * recurso principal = primary resource.
    * semiprincipal = semi-main.
    * ser lo principal de = be at the core of, be at the heart of.
    * * *
    I
    adjetivo <entrada/carretera/calle> main

    el papel principal — the main part o leading role

    lo principal es que... — the main thing is that...

    II
    a) (Fin) principal, capital
    b) (en teatro, cine) dress circle, mezzanine (AmE)
    * * *
    = capital, chief, dominant, essential, foremost, leading, main, major, primary, principal, top, key, lead, premier, overriding, prime, staple, number one, top-of-mind, cardinal, master.

    Ex: Following internal discussion, it was agreed that a new library should be given the University's top priority in any forthcoming capital building project.

    Ex: This section reviews the chief factors that must be taken into account in selecting an appropriate software package.
    Ex: English is the dominant language for the dissemination of information.
    Ex: The preceding chapter has introduced the essential characteristics of bibliographic descriptions.
    Ex: Foremost among those recommendations was one pertaining to the development of a UNIMARC format for authorities.
    Ex: In addition to her reputation as a leading expert in information control, Phyllis Richmond is another of ISAD's official reviewers of the AACR2's draft.
    Ex: The main rule, however, is do not have loose cables hanging all over the place -- not only is it unsightly but also extremely dangerous.
    Ex: This scheme aims for a more helpful order than the major schemes, by following the groupings of subjects as they are taught in schools.
    Ex: The primary components in this area are place of publication, publisher's name and date of publication (that is, the date of edition).
    Ex: If responsibility is shared between mor than three persons or corporate bodies (and no principal author is indicated), then entry is made under the title.
    Ex: ISI's indexes let you locate research in the world's top journals by citation, title word, author, institution, or journal.
    Ex: This meeting brought together representatives of the key organizations in the community.
    Ex: The United Nations declared 1990 as International Literacy Year (ILY) with Unesco designated as the lead agency for ILY.
    Ex: It is the country's premier research library for the natural sciences, engineering, technology and industrial property.
    Ex: Consequently, the overriding demand made by the academic community is bibliographical in nature.
    Ex: For instance, my sporting goods store is on the ground level and to the right -- prime mall location.
    Ex: UK libraries and the BBC Continuing Education have the same staple customer group.
    Ex: Eyestrain is the number one complaint of computer users.
    Ex: Computer security is a top-of-mind subject for both IT managers and their corporate bosses.
    Ex: To underestimate your enemy is committing the cardinal mistake and often the last you'll make!.
    Ex: The great significance of a fully developed network will be that it will relieve libraries of the necessity of maintaining their own copies of the master data base.
    * actividad principal = core activity.
    * actor principal = lead character, leading man.
    * actor principal, el = main character, the, main actor, the.
    * administrador principal = top administrator.
    * apartarse de los caminos principales = go + off-road.
    * asesor principal = senior adviser, senior consultant.
    * calle principal, la = high street, the, main street, the.
    * carretera principal = major road.
    * comida principal = main meal.
    * consejero principal = senior adviser, senior consultant.
    * director principal = senior director.
    * dormitorio principal = master bedroom, master suite.
    * el principal = the number one.
    * en la corriente principal de = in the mainstream of.
    * en la tendencia principal de = in the mainstream of.
    * frase que recoge el tema principal del artículo = topic sentence.
    * fuente principal de información = chief source of information.
    * guía principal = guiding principle.
    * la cosa principal = the number one thing.
    * la parte principal de = the bulk of.
    * motivo principal = prime cause.
    * papel principal = title role.
    * parte principal del texto = meat of the text.
    * personaje principal = lead character.
    * personaje principal, el = main character, the, main actor, the.
    * plato principal = entrée, main entrée.
    * ponencia principal = keynote presentation.
    * primero y principal = first and foremost.
    * principal razón = prime cause.
    * principal sospechoso = leading suspect.
    * principal sostén de la familia = breadwinner [bread winner].
    * programa principal = Core Programme.
    * protagonista principal = centrepiece [centerpiece, -USA], lead character.
    * protagonista principal, el = main character, the, main actor, the.
    * recurso principal = primary resource.
    * semiprincipal = semi-main.
    * ser lo principal de = be at the core of, be at the heart of.

    * * *
    ‹entrada› main; ‹carretera/calle› main
    el papel principal lo hacía Azucena Romero the main part o leading role was played by Azucena Romero
    el personaje principal se suicida al final the main character commits suicide at the end
    lo principal es que no se hizo daño the main thing is that he didn't hurt himself
    lo principal es la salud there's nothing more important than your health
    1 ( Fin) principal, capital
    2 (en un teatro, cine) upper balcony ( AmE), upper circle ( BrE)
    * * *

     

    principal adjetivo
    main;
    ‹ papel› leading ( before n);
    ◊ lo principal es que… the main thing is that…

    principal adjetivo main, principal

    ' principal' also found in these entries:
    Spanish:
    central
    - constreñir
    - dirección
    - director
    - directora
    - eclipsar
    - maestra
    - maestro
    - mayor
    - nudo
    - puerta
    - requerir
    - sita
    - sito
    - soler
    - subdirector
    - subdirectora
    - mayordomo
    - mayoritario
    - plato
    - portón
    - protagonista
    English:
    already
    - anchor
    - attraction
    - averse
    - bed
    - body
    - bomb
    - bread-and-butter
    - by
    - central
    - chief
    - dash
    - deputy
    - dinner
    - do
    - enjoy
    - flagship
    - foremost
    - head
    - high
    - high road
    - imagine
    - irony
    - lead
    - lead off from
    - lead story
    - leading
    - leading lady
    - leading man
    - main
    - mainland
    - mainstay
    - master
    - mind
    - objective
    - on
    - opposed
    - premier
    - primary
    - prime
    - principal
    - road
    - runaway
    - title role
    - trunk road
    - upstage
    - course
    - limb
    - major
    - rat
    * * *
    ♦ adj
    1. [más importante] main, principal;
    me han dado el papel principal de la obra de teatro I've been given the leading o lead role in the play;
    puerta principal front door;
    lo principal the main thing
    2. [oración] main
    ♦ nm
    1. [piso] Br first floor, US second floor
    2. Fin principal
    * * *
    I adj main, principal;
    lo principal the main o most important thing
    II m second floor, Br
    first floor
    * * *
    1) : main, principal
    2) : foremost, leading
    : capital, principal
    * * *
    principal1 adj main
    principal2 n first floor

    Spanish-English dictionary > principal

  • 4 Forrester, Jay Wright

    [br]
    b. 14 July 1918 Anselmo, Nebraska, USA
    [br]
    American electrical engineer and management expert who invented the magnetic-core random access memory used in most early digital computers.
    [br]
    Born on a cattle ranch, Forrester obtained a BSc in electrical engineering at the University of Nebraska in 1939 and his MSc at the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts, where he remained to teach and carry out research. Becoming interested in computing, he established the Digital Computer Laboratory at MIT in 1945 and became involved in the construction of Whirlwind I, an early general-purpose computer completed in March 1951 and used for flight-simulation by the US Army Air Force. Finding the linear memories then available for storing data a major limiting factor in the speed at which computers were able to operate, he developed a three-dimensional store based on the binary switching of the state of small magnetic cores that could be addressed and switched by a matrix of wires carrying pulses of current. The machine used parallel synchronous fixed-point computing, with fifteen binary digits and a plus sign, i.e. 16 bits in all, and contained 5,000 vacuum tubes, eleven semiconductors and a 2 MHz clock for the arithmetic logic unit. It occupied a two-storey building and consumed 150kW of electricity. From his experience with the development and use of computers, he came to realize their great potential for the simulation and modelling of real situations and hence for the solution of a variety of management problems, using data communications and the technique now known as interactive graphics. His later career was therefore in this field, first at the MIT Lincoln Laboratory in Lexington, Massachusetts (1951) and subsequently (from 1956) as Professor at the Sloan School of Management at the Massachusetts Institute of Technology.
    [br]
    Principal Honours and Distinctions
    National Academy of Engineering 1967. George Washington University Inventor of the Year 1968. Danish Academy of Science Valdemar Poulsen Gold Medal 1969. Systems, Man and Cybernetics Society Award for Outstanding Accomplishments 1972. Computer Society Pioneer Award 1972. Institution of Electrical Engineers Medal of Honour 1972. National Inventors Hall of Fame 1979. Magnetics Society Information Storage Award 1988. Honorary DEng Nebraska 1954, Newark College of Engineering 1971, Notre Dame University 1974. Honorary DSc Boston 1969, Union College 1973. Honorary DPolSci Mannheim University, Germany. Honorary DHumLett, State University of New York 1988.
    Bibliography
    1951, "Data storage in three dimensions using magnetic cores", Journal of Applied Physics 20: 44 (his first description of the core store).
    Publications on management include: 1961, Industrial Dynamics, Cambridge, Mass.: MIT Press; 1968, Principles of Systems, 1971, Urban Dynamics, 1980, with A.A.Legasto \& J.M.Lyneis, System Dynamics, North Holland. 1975, Collected Papers, Cambridge, Mass.: MIT.
    Further Reading
    K.C.Redmond \& T.M.Smith, Project Whirlwind, the History of a Pioneer Computer (provides details of the Whirlwind computer).
    H.H.Goldstine, 1993, The Computer from Pascal to von Neumann, Princeton University Press (for more general background to the development of computers).
    Serrell et al., 1962, "Evolution of computing machines", Proceedings of the Institute of
    Radio Engineers 1,047.
    M.R.Williams, 1975, History of Computing Technology, London: Prentice-Hall.
    KF

    Biographical history of technology > Forrester, Jay Wright

  • 5 Rosenhain, Walter

    SUBJECT AREA: Metallurgy
    [br]
    b. 24 August 1875 Berlin, Germany
    d. 17 March 1934 Kingston Hill, Surrey, England
    [br]
    German metallurgist, first Superintendent of the Department of Metallurgy and Metallurgical Chemistry at the National Physical Laboratory, Teddington, Middlesex.
    [br]
    His family emigrated to Australia when he was 5 years old. He was educated at Wesley College, Melbourne, and attended Queen's College, University of Melbourne, graduating in physics and engineering in 1897. As an 1851 Exhibitioner he then spent three years at St John's College, Cambridge, under Sir Alfred Ewing, where he studied the microstructure of deformed metal crystals and abandoned his original intention of becoming a civil engineer. Rosenhain was the first to observe the slip-bands in metal crystals, and in the Bakerian Lecture delivered jointly by Ewing and Rosenhain to the Royal Society in 1899 it was shown that metals deformed plastically by a mechanism involving shear slip along individual crystal planes. From this conception modern ideas on the plasticity and recrystallization of metals rapidly developed. On leaving Cambridge, Rosenhain joined the Birmingham firm of Chance Brothers, where he worked for six years on optical glass and lighthouse-lens systems. A book, Glass Manufacture, written in 1908, derives from this period, during which he continued his metallurgical researches in the evenings in his home laboratory and published several papers on his work.
    In 1906 Rosenhain was appointed Head of the Metallurgical Department of the National Physical Laboratory (NPL), and in 1908 he became the first Superintendent of the new Department of Metallurgy and Metallurgical Chemistry. Many of the techniques he introduced at Teddington were described in his Introduction to Physical Metallurgy, published in 1914. At the outbreak of the First World War, Rosenhain was asked to undertake work in his department on the manufacture of optical glass. This soon made it possible to manufacture optical glass of high quality on an industrial scale in Britain. Much valuable work on refractory materials stemmed from this venture. Rosenhain's early years at the NPL were, however, inseparably linked with his work on light alloys, which between 1912 and the end of the war involved virtually all of the metallurgical staff of the laboratory. The most important end product was the well-known "Y" Alloy (4% copper, 2% nickel and 1.5% magnesium) extensively used for the pistons and cylinder heads of aircraft engines. It was the prototype of the RR series of alloys jointly developed by Rolls Royce and High Duty Alloys. An improved zinc-based die-casting alloy devised by Rosenhain was also used during the war on a large scale for the production of shell fuses.
    After the First World War, much attention was devoted to beryllium, which because of its strength, lightness, and stiffness would, it was hoped, become the airframe material of the future. It remained, however, too brittle for practical use. Other investigations dealt with impurities in copper, gases in aluminium alloys, dental alloys, and the constitution of alloys. During this period, Rosenhain's laboratory became internationally known as a centre of excellence for the determination of accurate equilibrium diagrams.
    [br]
    Principal Honours and Distinctions
    FRS 1913. President, Institute of Metals 1828–30. Iron and Steel Institute Bessemer Medal, Carnegie Medal.
    Bibliography
    1908, Glass Manufacture.
    1914, An Introduction to the Study of Physical Metallurgy, London: Constable. Rosenhain published over 100 research papers.
    Further Reading
    J.L.Haughton, 1934, "The work of Walter Rosenhain", Journal of the Institute of Metals 55(2):17–32.
    ASD

    Biographical history of technology > Rosenhain, Walter

  • 6 Watson-Watt, Sir Robert Alexander

    [br]
    b. 13 April 1892 Brechin, Angus, Scotland
    d. 6 December 1973 Inverness, Scotland
    [br]
    Scottish engineer and scientific adviser known for his work on radar.
    [br]
    Following education at Brechin High School, Watson-Watt entered University College, Dundee (then a part of the University of St Andrews), obtaining a BSc in engineering in 1912. From 1912 until 1921 he was Assistant to the Professor of Natural Philosophy at St Andrews, but during the First World War he also held various posts in the Meteorological Office. During. this time, in 1916 he proposed the use of cathode ray oscillographs for radio-direction-finding displays. He joined the newly formed Radio Research Station at Slough when it was opened in 1924, and 3 years later, when it amalgamated with the Radio Section of the National Physical Laboratory, he became Superintendent at Slough. At this time he proposed the name "ionosphere" for the ionized layer in the upper atmosphere. With E.V. Appleton and J.F.Herd he developed the "squegger" hard-valve transformer-coupled timebase and with the latter devised a direction-finding radio-goniometer.
    In 1933 he was asked to investigate possible aircraft counter-measures. He soon showed that it was impossible to make the wished-for radio "death-ray", but had the idea of using the detection of reflected radio-waves as a means of monitoring the approach of enemy aircraft. With six assistants he developed this idea and constructed an experimental system of radar (RAdio Detection And Ranging) in which arrays of aerials were used to detect the reflected signals and deduce the bearing and height. To realize a practical system, in September 1936 he was appointed Director of the Bawdsey Research Station near Felixstowe and carried out operational studies of radar. The result was that within two years the East Coast of the British Isles was equipped with a network of radar transmitters and receivers working in the 7–14 metre band—the so-called "chain-home" system—which did so much to assist the efficient deployment of RAF Fighter Command against German bombing raids on Britain in the early years of the Second World War.
    In 1938 he moved to the Air Ministry as Director of Communications Development, becoming Scientific Adviser to the Air Ministry and Ministry of Aircraft Production in 1940, then Deputy Chairman of the War Cabinet Radio Board in 1943. After the war he set up Sir Robert Watson-Watt \& Partners, an industrial consultant firm. He then spent some years in relative retirement in Canada, but returned to Scotland before his death.
    [br]
    Principal Honours and Distinctions
    Knighted 1942. CBE 1941. FRS 1941. US Medal of Merit 1946. Royal Society Hughes Medal 1948. Franklin Institute Elliot Cresson Medal 1957. LLD St Andrews 1943. At various times: President, Royal Meteorological Society, Institute of Navigation and Institute of Professional Civil Servants; Vice-President, American Institute of Radio Engineers.
    Bibliography
    1923, with E.V.Appleton \& J.F.Herd, British patent no. 235,254 (for the "squegger"). 1926, with J.F.Herd, "An instantaneous direction reading radio goniometer", Journal of
    the Institution of Electrical Engineers 64:611.
    1933, The Cathode Ray Oscillograph in Radio Research.
    1935, Through the Weather Hours (autobiography).
    1936, "Polarisation errors in direction finders", Wireless Engineer 13:3. 1958, Three Steps to Victory.
    1959, The Pulse of Radar.
    1961, Man's Means to his End.
    Further Reading
    S.S.Swords, 1986, Technical History of the Beginnings of Radar, Stevenage: Peter Peregrinus.
    KF

    Biographical history of technology > Watson-Watt, Sir Robert Alexander

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