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21 Hero
2) Военный термин: Helicopter Emergency Rescue Operation, Historical Evaluation and Research Organization, hazards of electromagnetic radiation to ordnance3) Шутливое выражение: Hell Ever Rally On4) Религия: His Early Righteous Ones5) Ветеринария: Hendricks Equine Rehab Opportunities6) Сокращение: Hazards of Electro-magnetic Radiation to Ordnance, hazardous effect of radiation on ordnance7) Университет: Higher Education And Research Opportunities, Higher Education Research Opportunities, Human Environment Regional Observatory8) Физика: High Energy Replicated Optics9) Деловая лексика: Heroic Effort Recognition Opportunity, Hutchinson Employees Reaching Out10) Образование: Health Educational And Rural Outreach, Helping Everyone Reach Out, Helping Everyone Read Outstandingly11) Фантастика Helping Every Robot Organization12) Общественная организация: Helping Earths Rainforests Organization13) Должность: Highway Emergency Response Operator, Home Economic Related Occupations, Home Economics Related Occupations14) Правительство: Health Environment Regional Organisation, Home Energy Ratings Of Ohio -
22 hero
2) Военный термин: Helicopter Emergency Rescue Operation, Historical Evaluation and Research Organization, hazards of electromagnetic radiation to ordnance3) Шутливое выражение: Hell Ever Rally On4) Религия: His Early Righteous Ones5) Ветеринария: Hendricks Equine Rehab Opportunities6) Сокращение: Hazards of Electro-magnetic Radiation to Ordnance, hazardous effect of radiation on ordnance7) Университет: Higher Education And Research Opportunities, Higher Education Research Opportunities, Human Environment Regional Observatory8) Физика: High Energy Replicated Optics9) Деловая лексика: Heroic Effort Recognition Opportunity, Hutchinson Employees Reaching Out10) Образование: Health Educational And Rural Outreach, Helping Everyone Reach Out, Helping Everyone Read Outstandingly11) Фантастика Helping Every Robot Organization12) Общественная организация: Helping Earths Rainforests Organization13) Должность: Highway Emergency Response Operator, Home Economic Related Occupations, Home Economics Related Occupations14) Правительство: Health Environment Regional Organisation, Home Energy Ratings Of Ohio -
23 method
метод; способ- method of moments
- method of spin-density functional
- access method
- aluminum resist method
- angle-lapping method
- aperture field method
- B-method
- balanced method
- basic direct access method
- basic sequential access method
- basic telecommunication access method
- batch method
- Bayesian methods
- box-diffusion method
- Box-Wilson method
- Bridgman method
- Bridgman-Stockbarger method
- bright-field method
- cavity method
- Chalmers method
- chemical-reaction method
- chemical vapor infiltration method
- Cochran-Orcutt method
- coherent-pulse method
- collocation method
- common access method
- compensation method
- conditional maximum likelihood method
- conjugate gradients method
- constant-temperature method
- contact method
- convex combination method
- critical path method
- crucibleless method
- crystal-pulling method
- cylinder method
- Czochralski method
- dark-field method
- decoupled method
- Delphi method
- deposition method
- derivate approximation method
- desiccant packing method
- destructive method
- differential-conductivity method
- differential Doppler method
- diffraction method
- diffused-collector method
- diffused-meltback method
- diffusion method
- direct method
- dispersion and mask method
- dispersion and mask template method
- distribution-free method
- dot-alloying method
- double-doping method
- double-exposure method
- dynamic bubble collapse method
- edge enhancement method
- electronic-recording method
- electron-lithography method
- electron-orbit method
- Engle-Granger method
- epitaxial-diffused method
- equisignal-zone method
- equivalent-current-sheet method
- estimation method
- etching method
- etch-pit method
- evaporation method
- event-driven method
- FDTD method
- field matching method
- filter method of single-sideband signals generation
- finite-difference method
- finite-difference time domain method
- finite-element method
- flame-fusion method
- flip-chip method
- floating-probe method
- floating-zone method
- four-point probe method
- frequency-domain method
- fusion method
- fuzzy method
- Galerkin's method
- Gauss-Newton method
- Gauss-Seidel method
- generalized method of moments
- generalized instrumental variables method
- geometrical optics method
- goal-driven method
- gradient method
- Green function method
- growth method
- heavy ball method
- heuristic method
- hierarchical direct access method
- hierarchical indexed direct access method
- hierarchical indexed sequential access method
- hierarchical sequential access method
- Horner method
- hot-probe method
- hypothetico-deductive method
- incomplete Choleski-decomposition method
- indexed sequential-access method
- indirect method
- induced electromotive force method
- induced EMF method
- induced magnetomotive force method
- induced MMF method
- insertion method
- in situ method
- instrumental variables method
- intaglio method
- intelligent decision support method
- interference method
- introspective method
- ion-drift method
- ion-implantation method
- isothermal method
- isothermal dipping method
- jack-knife method
- Jackson method
- Johansen method
- Kiefer-Wolfowitz method
- k-means method
- k-partan method
- Krüger-Finke method
- Kyropoulos method
- laborious method
- learning subspace method
- least distance method
- least-squares method
- Levenberg-Marquardt method
- lithographic method
- lobe switching method
- logistic method
- Marquardt method
- masking method
- matrix method
- maximum entropy method
- maximum likelihood method
- meltback method
- melt-freeze method
- melt-quench method
- memory operating characteristic method
- modified partan method
- molecular-field method
- Monte Carlo method
- morphological method
- Newton method
- Newton-Raphson method
- nodal method
- nondestructive method
- null method
- offset carrier method
- offset subcarrier method
- OLS method
- operations research method
- ordered elimination method
- ordinary least squares method
- orthogonalized plane wave method
- outer product of gradient method
- overcompensated method
- over-under probe method
- oxide resist method
- pair-exchange method
- partan method
- path compression method
- path-of-steepest-ascent method
- path sensitizing method
- pedestal method
- perturbation method
- phase-contrast method
- phase-plane method
- phasing method of single-sideband signals generation
- photoconductive decay method
- photolithographic method
- planographic method
- powder method
- principal components method
- probe method
- pseudopotential method
- queued access method
- queued indexed sequential access method
- queued sequential access method
- queued telecommunication access method
- random-walk method
- ray-optics method
- recalculation method
- receiver operating characteristic method
- recrystallization method
- rejection-mask method
- resonance method
- rotary-crystallizer method
- rotating crystal method
- roulette wheel method
- schlieren method
- scientific method
- sector method
- sequential-access method
- silk-screening method
- simplex method
- simulated annealing method
- skip-field method
- slow-cooling method
- solder-reflow method
- solid-state diffusion method
- speckle method
- spectral-domain method
- spray-processing method
- staining method
- state-space method
- static baycenter method
- stationary-phase method
- strain-annealed method
- sublimation-condensation method
- surface-potential equilibration method
- symbolic layout method
- symmetric displacement method
- temperature differential method
- temperature-variation method
- thermal-gradient method
- time-domain method
- Todama method
- traveling-solvent method
- trial-and-error method
- two-wattmeter method
- van der Pol method
- vapor-liquid-solid method
- variable-metric method
- vector-potential method
- Verneuil method
- vernier pulse-timing method
- virtual storage access method
- virtual telecommunications access method
- VLS method
- Warnier-Orr method
- wire-wrap method
- zero method -
24 system
1) система || системный3) вчт операционная система; программа-супервизор5) вчт большая программа6) метод; способ; алгоритм•system halted — "система остановлена" ( экранное сообщение об остановке компьютера при наличии серьёзной ошибки)
- CPsystem- H-system- h-system- hydrogen-air/lead battery hybrid system- Ksystem- Lsystem- L*a*b* system- master/slave computer system- p-system- y-system- Δ-system -
25 method
метод; способ- aluminum resist method
- angle-lapping method
- aperture field method
- balanced method
- basic direct access method
- basic sequential access method
- basic telecommunication access method
- batch method
- Bayesian methods
- B-method
- box-diffusion method
- Box-Wilson method
- Bridgman method
- Bridgman-Stockbarger method
- bright-field method
- cavity method
- Chalmers method
- chemical vapor infiltration method
- chemical-reaction method
- Cochran-Orcutt method
- coherent-pulse method
- collocation method
- common access method
- compensation method
- conditional maximum likelihood method
- conjugate gradients method
- constant-temperature method
- contact method
- convex combination method
- critical path method
- crucibleless method
- crystal-pulling method
- cylinder method
- Czochralski method
- dark-field method
- decoupled method
- Delphi method
- deposition method
- derivate approximation method
- desiccant packing method
- destructive method
- differential Doppler method
- differential-conductivity method
- diffraction method
- diffused-collector method
- diffused-meltback method
- diffusion method
- direct method
- dispersion and mask method
- dispersion and mask template method
- distribution-free method
- dot-alloying method
- double-doping method
- double-exposure method
- dynamic bubble collapse method
- edge enhancement method
- electronic-recording method
- electron-lithography method
- electron-orbit method
- Engle-Granger method
- epitaxial-diffused method
- equisignal-zone method
- equivalent-current-sheet method
- estimation method
- etching method
- etch-pit method
- evaporation method
- event-driven method
- FDTD method
- field matching method
- filter method of single-sideband signals generation
- finite-difference method
- finite-difference time domain method
- finite-element method
- flame-fusion method
- flip-chip method
- floating-probe method
- floating-zone method
- four-point probe method
- frequency-domain method
- fusion method
- fuzzy method
- Galerkin's method
- Gauss-Newton method
- Gauss-Seidel method
- generalized instrumental variables method
- generalized method of moments
- geometrical optics method
- goal-driven method
- gradient method
- Green function method
- growth method
- heavy ball method
- heuristic method
- hierarchical direct access method
- hierarchical indexed direct access method
- hierarchical indexed sequential access method
- hierarchical sequential access method
- Horner method
- hot-probe method
- hypothetico-deductive method
- in situ method
- incomplete Choleski-decomposition method
- indexed sequential-access method
- indirect method
- induced electromotive force method
- induced EMF method
- induced magnetomotive force method
- induced MMF method
- insertion method
- instrumental variables method
- intaglio method
- intelligent decision support method
- interference method
- introspective method
- ion-drift method
- ion-implantation method
- isothermal dipping method
- isothermal method
- jack-knife method
- Jackson method
- Johansen method
- Kiefer-Wolfowitz method
- k-means method
- k-partan method
- Krüger-Finke method
- Kyropoulos method
- laborious method
- learning subspace method
- least distance method
- least-squares method
- Levenberg-Marquardt method
- lithographic method
- lobe switching method
- logistic method
- Marquardt method
- masking method
- matrix method
- maximum entropy method
- maximum likelihood method
- meltback method
- melt-freeze method
- melt-quench method
- memory operating characteristic method
- method of edge waves
- method of moments
- method of spin-density functional
- modified partan method
- molecular-field method
- Monte Carlo method
- morphological method
- Newton method
- Newton-Raphson method
- nodal method
- nondestructive method
- null method
- offset carrier method
- offset subcarrier method
- OLS method
- operations research method
- ordered elimination method
- ordinary least squares method
- orthogonalized plane wave method
- outer product of gradient method
- overcompensated method
- over-under probe method
- oxide resist method
- pair-exchange method
- partan method
- path compression method
- path sensitizing method
- path-of-steepest-ascent method
- pedestal method
- perturbation method
- phase-contrast method
- phase-plane method
- phasing method of single-sideband signals generation
- photoconductive decay method
- photolithographic method
- planographic method
- powder method
- principal components method
- probe method
- pseudopotential method
- queued access method
- queued indexed sequential access method
- queued sequential access method
- queued telecommunication access method
- random-walk method
- ray-optics method
- recalculation method
- receiver operating characteristic method
- recrystallization method
- rejection-mask method
- resonance method
- rotary-crystallizer method
- rotating crystal method
- roulette wheel method
- schlieren method
- scientific method
- sector method
- sequential-access method
- silk-screening method
- simplex method
- simulated annealing method
- skip-field method
- slow-cooling method
- solder-reflow method
- solid-state diffusion method
- speckle method
- spectral-domain method
- spray-processing method
- staining method
- state-space method
- static baycenter method
- stationary-phase method
- strain-annealed method
- sublimation-condensation method
- surface-potential equilibration method
- symbolic layout method
- symmetric displacement method
- temperature differential method
- temperature-variation method
- thermal-gradient method
- time-domain method
- Todama method
- traveling-solvent method
- trial-and-error method
- two-wattmeter method
- van der Pol method
- vapor-liquid-solid method
- variable-metric method
- vector-potential method
- Verneuil method
- vernier pulse-timing method
- virtual storage access method
- virtual telecommunications access method
- VLS method
- Warnier-Orr method
- wire-wrap method
- zero methodThe New English-Russian Dictionary of Radio-electronics > method
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26 Lippman, Gabriel
SUBJECT AREA: Photography, film and optics[br]b. 16 August 1845 Hallerick, Luxembourgd. 14 July 1921 at sea, in the North Atlantic[br]French physicist who developed interference colour photography.[br]Born of French parents, Lippman's work began with a distinguished career in classics, philosophy, mathematics and physics at the Ecole Normale in Luxembourg. After further studies in physics at Heidelberg University, he returned to France and the Sorbonne, where he was in 1886 appointed Director of Physics. He was a leading pioneer in France of research into electricity, optics, heat and other branches of physics.In 1886 he conceived the idea of recording the existence of standing waves in light when it is reflected back on itself, by photographing the colours so produced. This required the production of a photographic emulsion that was effectively grainless: the individual silver halide crystals had to be smaller than the shortest wavelength of light to be recorded. Lippman succeeded in this and in 1891 demonstrated his process. A glass plate was coated with a grainless emulsion and held in a special plate-holder, glass towards the lens. The back of the holder was filled with mercury, which provided a perfect reflector when in contact with the emulsion. The standing waves produced during the exposure formed laminae in the emulsion, with the number of laminae being determined by the wavelength of the incoming light at each point on the image. When the processed plate was viewed under the correct lighting conditions, a theoretically exact reproduction of the colours of the original subject could be seen. However, the Lippman process remained a beautiful scientific demonstration only, since the ultra-fine-grain emulsion was very slow, requiring exposure times of over 10,000 times that of conventional negative material. Any method of increasing the speed of the emulsion also increased the grain size and destroyed the conditions required for the process to work.[br]Principal Honours and DistinctionsRoyal Photographic Society Progress Medal 1897. Nobel Prize (for his work in interference colour photography) 1908.Further ReadingJ.S.Friedman, 1944, History of Colour Photography, Boston.Brian Coe, 1978, Colour Photography: The First Hundred Years, London. Gert Koshofer, 1981, Farbfotografie, Vol. I, Munich.BC -
27 Godowsky, Leopold Jr
SUBJECT AREA: Photography, film and optics[br]b. 27 May 1900 Chicago, Illinois, USA d. 1983[br]American musician and photographic experimenter whose researches, with those of his colleague Mannes, led to the introduction of the first commercial tripack colour film, Kodachrome.[br]Both from distinguished musical families, Godowsky and Leopold Damrosch Mannes met at Riverdale School in New York in 1916, and shared an interest in photography. They began experiments in methods of additive colour photography, gaining a patent for a three-colour projector. Godowsky went to the University of California to study chemistry, physics and mathematics, while working as a professional violinist; Mannes, a pianist, went to Harvard to study music and physics. They kept in touch, and after graduating they joined up in New York, working as musicians and experimenting in colour photography in their spare time.Initially working in kitchens and bathrooms, they succeeded in creating a two-layer colour photographic plate, with emulsions separately sensitized to parts of the spectrum, and patented the process. This achievement was all the greater since they were unable to make the emulsions themselves and had to resort to buying commercial photographic plates so that they could scrape off the emulsions, remelt them and coat their experimental materials. In 1922 their work came to the attention of C.E.K. Mees, the leading photographic scientist and Director of the Eastman Kodak Research Laboratory in Rochester, New York. Mees arranged for plates to be coated to their specifications. With a grant from Kuhn, Loeb \& Co. they were able to rent laboratory space. Learning of Rudolf Fischer's early work on dye couplers, they worked to develop a new process incorporating them. Mees saw that their work, however promising, would not develop in an amateur laboratory, and in 1930 he invited them to join the Kodak Research Laboratory, where they arrived on 15 June 1931. Their new colleagues worked on ways of coating multi-layer film, while Mannes and Godowsky worked out a method of separately processing the individual layers in the exposed film. The result was Kodachrome film, the first of the modern integral tripack films, launched on 15 April 1935.They remained with Eastman Kodak until December 1939; their work contributed to the later appearance of Ektachrome colour-reversal film and the Kodacolor and Eastman Color negative-positive colour processes. Mannes became the Director of his father's Music Academy in New York, remaining as such until his death in 1964. Godowsky returned to Westport, Connecticut, and continued to study mathematics at Columbia University. He carried out photographic research un his private laboratory up until the time of his death in 1983.[br]Further ReadingC.E.K.Mees, 1961, From Dry Plates to Ektachrome Film, New York.BC -
28 Marey, Etienne-Jules
[br]b. 5 March 1830 Beaune, Franced. 15 May 1904 Paris, France[br]French physiologist and pioneer of chronophotography.[br]At the age of 19 Marey went to Paris to study medicine, becoming particularly interested in the problems of the circulation of the blood. In an early communication to the Académie des Sciences he described a much improved device for recording the pulse, the sphygmograph, in which the beats were recorded on a smoked plate. Most of his subsequent work was concerned with methods of recording movement: to study the movement of the horse, he used pneumatic sensors on each hoof to record traces on a smoked drum; this device became known as the Marey recording tambour. His attempts to study the wing movements of a bird in flight in the same way met with limited success since the recording system interfered with free movement. Reading in 1878 of Muybridge's work in America using sequence photography to study animal movement, Marey considered the use of photography himself. In 1882 he developed an idea first used by the astronomer Janssen: a camera in which a series of exposures could be made on a circular photographic plate. Marey's "photographic gun" was rifle shaped and could expose twelve pictures in approximately one second on a circular plate. With this device he was able to study wing movements of birds in free flight. The camera was limited in that it could record only a small number of images, and in the summer of 1882 he developed a new camera, when the French government gave him a grant to set up a physiological research station on land provided by the Parisian authorities near the Porte d'Auteuil. The new design used a fixed plate, on which a series of images were recorded through a rotating shutter. Looking rather like the results provided by a modern stroboscope flash device, the images were partially superimposed if the subject was slow moving, or separated if it was fast. His human subjects were dressed all in white and moved against a black background. An alternative was to dress the subject in black, with highly reflective strips and points along limbs and at joints, to produce a graphic record of the relationships of the parts of the body during action. A one-second-sweep timing clock was included in the scene to enable the precise interval between exposures to be assessed. The fixed-plate cameras were used with considerable success, but the number of individual records on each plate was still limited. With the appearance of Eastman's Kodak roll-film camera in France in September 1888, Marey designed a new camera to use the long rolls of paper film. He described the new apparatus to the Académie des Sciences on 8 October 1888, and three weeks later showed a band of images taken with it at the rate of 20 per second. This camera and its subsequent improvements were the first true cinematographic cameras. The arrival of Eastman's celluloid film late in 1889 made Marey's camera even more practical, and for over a decade the Physiological Research Station made hundreds of sequence studies of animals and humans in motion, at rates of up to 100 pictures per second. Marey pioneered the scientific study of movement using film cameras, introducing techniques of time-lapse, frame-by-frame and slow-motion analysis, macro-and micro-cinematography, superimposed timing clocks, studies of airflow using smoke streams, and other methods still in use in the 1990s. Appointed Professor of Natural History at the Collège de France in 1870, he headed the Institut Marey founded in 1898 to continue these studies. After Marey's death in 1904, the research continued under the direction of his associate Lucien Bull, who developed many new techniques, notably ultra-high-speed cinematography.[br]Principal Honours and DistinctionsForeign member of the Royal Society 1898. President, Académie des Sciences 1895.Bibliography1860–1904, Comptes rendus de l'Académie des Sciences de Paris.1873, La Machine animale, Paris 1874, Animal Mechanism, London.1893, Die Chronophotographie, Berlin. 1894, Le Mouvement, Paris.1895, Movement, London.1899, La Chronophotographie, Paris.Further Reading1905, Travaux de l'Association de l'Institut Marey, Paris. Brian Coe, 1981, History of Movie Photography, London.——1992, Muybridge and the Chronophotographers, London. Jacques Deslandes, 1966, Histoire comparée du cinéma, Vol. I, Paris.See also: Demenÿ, GeorgesBC / MG -
29 Schawlow, Arthur Leonard
[br]b. 5 May 1921 Mount Vernon, New York, USA[br]American physicist involved in laser-spectroscopy research.[br]When Arthur L.Schawlow was 3 years old his family moved to Canada: it was in Toronto that he received his education, graduating from the University of Toronto with a BA in physics in 1941. He was awarded an MA in 1942, taught classes for military personnel at the University until 1944 and worked for a year on radar equipment. He returned to the University of Toronto in 1945 to carry out research on optical spectroscopy and received his PhD in 1949. From 1949 to 1951 he held a postgraduate fellowship at Columbia University, where he worked with Charles H. Townes on microwave spectroscopy. From 1951 to 1961 he was a research physicist at the Bell Telephone Laboratories, working mainly on superconductivity, but he maintained his association with Townes, who had pioneered the maser (an acronym of microwave amplification by stimulated emission of radiation). In a paper published in Physical Review in December 1958, Townes and Schawlow suggested the possibility of a development into optical frequencies or an optical maser, later known as a laser (an acronym of light amplification by stimulated emission of radiation). In 1960 the first such device was made by Theodore H. Maiman. In 1960 Schawlow returned to Columbia University as a visiting professor and in the following year was appointed Professor of Physics at Stanford University, where he continued his researches in laser spectroscopy. He is a member of the National Academy of Sciences, the American Physical Society, the Optical Society of America and the Institute of Electrical and Electronic Engineers.[br]Principal Honours and DistinctionsNobel Prize for Physics 1981. Franklin Institute Stuart Ballantine Medal 1962. Institute of Physics of London Thomas Young Medal and Prize 1963. Institute of Electrical and Electronics Engineers Morris N.Liebmann Memorial Prize 1964. Optical Society of America Frederick Ives Medal 1976. Honorary degrees from the State University of Ghent, the University of Bradford and the University of Toronto.BibliographySchawlow is the author of many scientific papers and, with Charles H.Townes, ofMicrowave Spectroscopy (1955).Further ReadingT.Wasson (ed.), 1987, Nobel Prize Winners, New York, pp. 930–3 (contains a short biography).RTSBiographical history of technology > Schawlow, Arthur Leonard
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30 Zworykin, Vladimir Kosma
[br]b. 30 July 1889 Mourum (near Moscow), Russiad. 29 July 1982 New York City, New York, USA[br]Russian (naturalized American 1924) television pioneer who invented the iconoscope and kinescope television camera and display tubes.[br]Zworykin studied engineering at the Institute of Technology in St Petersburg under Boris Rosing, assisting the latter with his early experiments with television. After graduating in 1912, he spent a time doing X-ray research at the Collège de France in Paris before returning to join the Russian Marconi Company, initially in St Petersburg and then in Moscow. On the outbreak of war in 1917, he joined the Russian Army Signal Corps, but when the war ended in the chaos of the Revolution he set off on his travels, ending up in the USA, where he joined the Westinghouse Corporation. There, in 1923, he filed the first of many patents for a complete system of electronic television, including one for an all-electronic scanning pick-up tube that he called the iconoscope. In 1924 he became a US citizen and invented the kinescope, a hard-vacuum cathode ray tube (CRT) for the display of television pictures, and the following year he patented a camera tube with a mosaic of photoelectric elements and gave a demonstration of still-picture TV. In 1926 he was awarded a PhD by the University of Pittsburgh and in 1928 he was granted a patent for a colour TV system.In 1929 he embarked on a tour of Europe to study TV developments; on his return he joined the Radio Corporation of America (RCA) as Director of the Electronics Research Group, first at Camden and then Princeton, New Jersey. Securing a budget to develop an improved CRT picture tube, he soon produced a kinescope with a hard vacuum, an indirectly heated cathode, a signal-modulation grid and electrostatic focusing. In 1933 an improved iconoscope camera tube was produced, and under his direction RCA went on to produce other improved types of camera tube, including the image iconoscope, the orthicon and image orthicon and the vidicon. The secondary-emission effect used in many of these tubes was also used in a scintillation radiation counter. In 1941 he was responsible for the development of the first industrial electron microscope, but for most of the Second World War he directed work concerned with radar, aircraft fire-control and TV-guided missiles.After the war he worked for a time on high-speed memories and medical electronics, becoming Vice-President and Technical Consultant in 1947. He "retired" from RCA and was made an honorary vice-president in 1954, but he retained an office and continued to work there almost up until his death; he also served as Director of the Rockefeller Institute for Medical Research from 1954 until 1962.[br]Principal Honours and DistinctionsZworykin received some twenty-seven awards and honours for his contributions to television engineering and medical electronics, including the Institution of Electrical Engineers Faraday Medal 1965; US Medal of Science 1966; and the US National Hall of Fame 1977.Bibliography29 December 1923, US patent no. 2,141, 059 (the original iconoscope patent; finally granted in December 1938!).13 July 1925, US patent no. 1,691, 324 (colour television system).1930, with D.E.Wilson, Photocells and Their Applications, New York: Wiley. 1934, "The iconoscope. A modern version of the electric eye". Proceedings of theInstitute of Radio Engineers 22:16.1946, Electron Optics and the Electron Microscope.1940, with G.A.Morton, Television; revised 1954.1949, with E.G.Ramberg, Photoelectricity and Its Applications. 1958, Television in Science and Industry.Further ReadingJ.H.Udelson, 1982, The Great Television Race: History of the Television Industry 1925– 41: University of Alabama Press.KFBiographical history of technology > Zworykin, Vladimir Kosma
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31 Barnack, Oskar
SUBJECT AREA: Photography, film and optics[br]b. 1879 Berlin, Germanyd. January 1936 Wetzlar, Germany[br]German camera designer who conceived the first Leica camera and many subsequent models.[br]Oskar Barnack was an optical engineer, introspective and in poor health, when in 1910 he was invited through the good offices of his friend the mechanical engineer Emil Mechau, who worked for Ernst Leitz, to join the company at Wetzlar to work on research into microscope design. He was engaged after a week's trial, and on 2 January 1911 he was put in charge of microscope research. He was an enthusiastic photographer, but excursions with his large and heavy plate camera equipment taxed his strength. In 1912, Mechau was working on a revolutionary film projector design and needed film to test it. Barnack suggested that it was not necessary to buy an expensive commercial machine— why not make one? Leitz agreed, and Barnack constructed a 35 mm movie camera, which he used to cover events in and around Wetzlar.The exposure problems he encountered with the variable sensitivity of the cine film led him to consider the design of a still camera in which short lengths of film could be tested before shooting—a kind of exposure-meter camera. Dissatisfied with the poor picture quality of his first model, which took the standard cine frame of 18×24 mm, he built a new model in which the frame size was doubled to 36×24 mm. It used a simple focal-plane shutter adjustable to 1/500 of a second, and a Zeiss Milar lens of 42 mm focal length. This is what is now known as the UR-Leica. Using his new camera, 1/250 of the weight of his plate equipment, Barnack made many photographs around Wetzlar, giving postcard-sized prints of good quality.Ernst Leitz Junior was lent the camera for his trip in June 1914 to America, where he was urged to put it into production. Visiting George Eastman in Rochester, Leitz passed on Barnack's requests for film of finer grain and better quality. The First World War put an end to the chances of developing the design at that time. As Germany emerged from the postwar chaos, Leitz Junior, then in charge of the firm, took Barnack off microscope work to design prototypes for a commercial model. Leitz's Chief Optician, Max Berek, designed a new lens, the f3.5 Elmax, for the new camera. They settled on the name Leica, and the first production models went on show at the Leipzig Spring Fair in 1925. By the end of the year, 1,000 cameras had been shipped, despite costing about two months' good wages.The Leica camera established 35 mm still photography as a practical proposition, and film manufacturers began to create the special fine-grain films that Barnack had longed for. He continued to improve the design, and a succession of new Leica models appeared with new features, such as interchangeable lenses, coupled range-finders, 250 exposures. By the time of his sudden death in 1936, Barnack's life's work had forever transformed the nature of photography.[br]Further ReadingJ.Borgé and G.Borgé, 1977, Prestige de la, photographie.BC -
32 Carlson, Chester Floyd
SUBJECT AREA: Photography, film and optics[br]b. 8 July 1906 Seattle, Washington, USAd. 19 September 1968 New York, USA[br][br]Carlson studied physics at the California Institute of Technology and in 1930 he took a research position at Bell Telephone Laboratories, but soon transferred to their patent department. To equip himself in this field, Carlson studied law, and in 1934 he became a patent attorney at P.R.Mallory \& Co., makers of electrical apparatus. He was struck by the difficulty in obtaining copies of documents and drawings; indeed, while still at school, he had encountered printing problems in trying to produce a newsletter for amateur chemists. He began experimenting with various light-sensitive substances, and by 1937 he had conceived the basic principles of xerography ("dry writing"), using the property of certain substances of losing an electrostatic charge when light impinges on them. His work for Mallory brought him into contact with the Battelle Memorial Institute, the world's largest non-profit research organization; their subsidiary, set up to develop promising ideas, took up Carlson's invention. Carlson received his first US patent for the process in 1940, with two more in 1942, and he assigned to Battelle exclusive patent rights in return for a share of any future proceeds. It was at Battelle that selenium was substituted as the light-sensitive material.In 1946 the Haloid Company of Rochester, manufacturers of photographic materials and photocopying equipment, heard of the Xerox copier and, seeing it as a possible addition to their products, took out a licence to develop it commercially. The first Xerox Copier was tested during 1949 and put on the market the following year. The process soon began to displace older methods, such as Photostat, but its full impact on the public came in 1959 with the advent of the Xerox 914 Copier. It is fair to apply the overworked word "revolution" to the change in copying methods initiated by Carlson. He became a multimillionaire from his royalties and stock holding, and in his last years he was able to indulge in philanthropic activities.[br]Further ReadingObituary, 1968, New York Times, 20 September.R.M.Schaffert, 1954, "Developments in xerography", Penrose Annual.J.Jewkes, 1969, The Sources of Invention, 2nd edn, London: Macmillan, pp. 405–8.LRD -
33 Ives, Frederic Eugene
SUBJECT AREA: Photography, film and optics[br]b. 17 February 1856 Litchfield, Connecticut, USAd. 27 May 1937 Philadelphia, Pennsylvania, USA[br]American printer who pioneered the development of photomechanical and colour photographic processes.[br]Ives trained as a printer in Ithaca, New York, and became official photographer at Cornell University at the age of 18. His research into photomechanical processes led in 1886 to methods of making halftone reproduction of photographs using crossline screens. In 1881 he was the first to make a three-colour print from relief halftone blocks. He made significant contributions to the early development of colour photography, and from 1888 he published and marketed a number of systems for the production of additive colour photographs. He designed a beam-splitting camera in which a single lens exposed three negatives through red, green and blue filters. Black and white transparencies from these negatives were viewed in a device fitted with internal reflectors and filters, which combined the three colour separations into one full-colour image. This device was marketed in 1895 under the name Kromskop; sets of Kromograms were available commercially, and special cameras, or adaptors for conventional cameras, were available for photographers who wished to take their own colour pictures. A Lantern Kromskop was available for the projection of Kromskop pictures. Ives's system enjoyed a few years of commercial success before simpler methods of making colour photographs rendered it obsolete. Ives continued research into colour photography; his later achievements included the design, in 1915, of the Hicro process, in which a simple camera produced sets of separation negatives that could be printed as dyed transparencies in complementary colours and assembled in register on paper to produce colour prints. Later, in 1932, he introduced Polychrome, a simpler, two-colour process in which a bipack of two thin negative plates or films could be exposed in conventional cameras. Ives's interest extended into other fields, notably stereoscopy. He developed a successful parallax stereogram process in 1903, in which a three-dimensional image could be seen directly, without the use of viewing devices. In his lifetime he received many honours, and was a recipient of the Royal Photographic Society's Progress Medal in 1903 for his work in colour photography.[br]Further ReadingB.Coe, 1978, Colour Photography: The First Hundred Years, London J.S.Friedman, 1944, History of Colour Photography, Boston. G.Koshofer, 1981, Farbfotografie, Vol. I, Munich.E.J.Wall, 1925, The History of Three-Colour Photography, Boston.BC -
34 FOA
1) Компьютерная техника: Formatting Objects Authoring2) Военный термин: Fellowship Of Assassins, Foreign Operations Agency, Forward Operating Area, foreign operations administration3) Техника: fiber-optics analyzer, forced oil and air, fuel oil additive4) Юридический термин: fob airport, free of all average5) Сокращение: Field Operating Agency (USAF), Forsvarets Forskningsalanstalt (National Defence Research Establishment (Sweden))6) Физиология: Foam7) Вычислительная техника: Fiber Optic Association (organization)8) Нефть: free on board at airport9) Транспорт: франт-аэропорт (FOB airport)10) Деловая лексика: Farm-Out Agreement, франко-аэропорт (FOB airport)11) Химическое оружие: Field Operating Agency12) Логистика: ФОА13) Общественная организация: Friends Of Animals14) Международная торговля: Forest Owners Association -
35 OFR
1) Морской термин: ставка фрахта по морю (ocean freight)2) Американизм: Office of Foreign Relations, Office of the Federal Register, Official Final Rule, Open File Report3) Техника: off-frequency rejection, over-frequency relay4) Юридический термин: Office of Federal Register5) Грубое выражение: Old Fart Racing6) Радио: Old Farts Regiment7) Физика: Optics For Research8) Электротехника: oil-resisting and flame-retardant9) НАСА: Out For Review -
36 SORL
Фирменный знак: Space Optics Research Labs -
37 foa
1) Компьютерная техника: Formatting Objects Authoring2) Военный термин: Fellowship Of Assassins, Foreign Operations Agency, Forward Operating Area, foreign operations administration3) Техника: fiber-optics analyzer, forced oil and air, fuel oil additive4) Юридический термин: fob airport, free of all average5) Сокращение: Field Operating Agency (USAF), Forsvarets Forskningsalanstalt (National Defence Research Establishment (Sweden))6) Физиология: Foam7) Вычислительная техника: Fiber Optic Association (organization)8) Нефть: free on board at airport9) Транспорт: франт-аэропорт (FOB airport)10) Деловая лексика: Farm-Out Agreement, франко-аэропорт (FOB airport)11) Химическое оружие: Field Operating Agency12) Логистика: ФОА13) Общественная организация: Friends Of Animals14) Международная торговля: Forest Owners Association -
38 Abney, William de Wiveleslie
SUBJECT AREA: Photography, film and optics[br]b. 24 July 1843 Englandd. 2 December 1920 England[br]English photographic scientist, inventor and author.[br]Abney began his career as an officer in the Army and was an instructor in chemistry in the Royal Engineers at Chatham, where he made substantial use of photography as a working tool. He retired from the Army in 1877 and joined the Science and Art Department at South Kensington. It was at Abney's suggestion that a collection of photographic equipment and processes was established in the South Kensington Museum (later to become the Science Museum Photography Collection).Abney undertook significant researches into the nature of gelatine silver halide emulsions at a time when they were being widely adopted by photographers. Perhaps his most important practical innovations were the introduction of hydroquinone as a developing agent in 1880 and silver gelatine citrochloride emulsions for printing-out paper (POP) in 1882. However, Abney was at the forefront of many aspects of photographic research during a period of great innovation and change in photography. He devised new techniques of photomechanical printing and conducted significant researches in the fields of photochemistry and spectral analysis. Abney published throughout his career for both the specialist scientist and the more general photographic practitioner.[br]Principal Honours and DistinctionsKCB 1900. FRS 1877. Served at different times as President of the Royal Astronomical, Royal Photographic and Physical Societies. Chairman, Royal Society of Arts.Further ReadingObituary, 1921, Proceedings of the Royal Society (Series A) 99. J.M.Eder, 1945, History of Photography, trans. E.Epstein, New York.JWBiographical history of technology > Abney, William de Wiveleslie
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39 Baekeland, Leo Hendrik
[br]b. 14 November 1863 Saint-Martens-Latern, Belgiumd. 23 February 1944 Beacon, New York, USA[br]Belgian/American inventor of the Velox photographic process and the synthetic plastic Bakélite.[br]The son of an illiterate shoemaker, Baekeland was first apprenticed in that trade, but was encouraged by his mother to study, with spectacular results. He won a scholarship to Gand University and graduated in chemistry. Before he was 21 he had achieved his doctorate, and soon afterwards he obtained professorships at Bruges and then at Gand. Baekeland seemed set for a distinguished academic career, but he turned towards the industrial applications of chemistry, especially in photography.Baekeland travelled to New York to further this interest, but his first inventions met with little success so he decided to concentrate on one that seemed to have distinct commercial possibilities. This was a photographic paper that could be developed in artificial light; he called this "gas light" paper Velox, using the less sensitive silver chloride as a light-sensitive agent. It proved to have good properties and was easy to use, at a time of photography's rising popularity. By 1896 the process began to be profitable, and three years later Baekeland disposed of his plant to Eastman Kodak for a handsome sum, said to be $3–4 million. That enabled him to retire from business and set up a laboratory at Yonkers to pursue his own research, including on synthetic resins. Several chemists had earlier obtained resinous products from the reaction between phenol and formaldehyde but had ignored them. By 1907 Baekeland had achieved sufficient control over the reaction to obtain a good thermosetting resin which he called "Bakélite". It showed good electrical insulation and resistance to chemicals, and was unchanged by heat. It could be moulded while plastic and would then set hard on heating, with its only drawback being its brittleness. Bakelite was an immediate success in the electrical industry and Baekeland set up the General Bakelite Company in 1910 to manufacture and market the product. The firm grew steadily, becoming the Bakélite Corporation in 1924, with Baekeland still as active President.[br]Principal Honours and DistinctionsPresident, Electrochemical Society 1909. President, American Chemical Society 1924. Elected to the National Academy of Sciences 1936.Further ReadingJ.Gillis, 1965, Leo Baekeland, Brussels.A.R.Matthis, 1948, Leo H.Baekeland, Professeur, Docteur ès Sciences, chimiste, inventeur et grand industriel, Brussels.J.K.Mumford, 1924, The Story of Bakélite.C.F.Kettering, 1947, memoir on Baekeland, Biographical Memoirs of the National Academy of Sciences 24 (includes a list of his honours and publications).LRD -
40 Cros, Charles
SUBJECT AREA: Photography, film and optics[br]b. 1842 Franced. 1888[br]French doctor, painter and man of letters who pioneered research into colour photography.[br]A man of considerable intellect, Cros occupied himself with studies of topics as diverse as Sanskrit and the synthesis of precious stones. He was in particular interested in the possibility of colour photography, and deposited an account of his theories in a sealed envelope with the Académie des Sciences on 2 December 1867, with instructions that it should be opened in 1876. Learning of a forthcoming presentation on colour photography by Ducos du Hauron at the Société Française de Photographie, he arranged for the contents of his communication to be published on 25 February 1869 in Les Mondes. At the Société's meeting on 7 May 1869, Cros's letter was read and samples of colour photography from Ducos du Hauron were shown. Both had arrived at similar conclusions: that colour photography was possible with the analysis of colours using negatives exposed through red, green and blue filters, as demonstrated by Clerk Maxwell in 1861. These records could be reproduced by combining positive images produced in blue-green, magenta and yellow pigments or dyes. Cros and Ducos du Hauron had discovered the principle of subtractive colour photography, which is used in the late twentieth century. In 1878 Cros designed the Chromometre, a device for measuring colours by mixing red, green and blue light, and described the device in a paper to the Société Française de Photographie on 10 January 1879. With suitable modification, the device could be used as a viewer for colour photographs, combining red, green and blue positives. In 1880 he patented the principle of imbibition printing, in which dye taken up by a gelatine relief image could be transferred to another support. This principle, which he called hydrotypie, readily made possible the production of three-colour subtractive photographic prints.[br]Further ReadingJ.S.Friedman, 1944, History of Colour Photography, Boston. Gert Koshofer, 1981, Farbefotografie, Vol. I, Munich.BC
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