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scan-frequency-recorder

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Journal Articles
Historical Studies in the Natural Sciences. 2017; 474529–567 doi: https://doi.org/10.1525/hsns.2017.47.4.529
Published: 01 September 2017
... the process was repeated (R0). The space between these two register marks was positioned at a location where the diffracted beam was expected to strike. Measurements of the spectra lines were made with respect to these marks. To aid the eye and the identification process, the scans of the six unique...
Journal Articles
Historical Studies in the Natural Sciences. 2016; 463270–312 doi: https://doi.org/10.1525/hsns.2016.46.3.270
Published: 01 June 2016
... geophys- icist who had worked for the U.K. Navy during the Second World War, claimed in 1946 that British oceanographers were worse off than their Scan- dinavian counterparts regarding support for deep-sea work, and therefore little high-quality oceanography had been carried out during the interwar period...
Journal Articles
Historical Studies in the Natural Sciences. 2014; 444364–412 doi: https://doi.org/10.1525/hsns.2014.44.4.364
Published: 01 September 2014
... departments and institutes of molecular biology in the late 1950s, a Google N-Gram search of printed books between 1930 and 1960 shows a dramatic increase in frequency of the term molecular biology around 1955. A JSTOR search of periodicals also shows an increase in citations around this period. 368 | S L...
Journal Articles
Historical Studies in the Natural Sciences. 2013; 4311–40 doi: https://doi.org/10.1525/hsns.2013.43.1.1
Published: 01 February 2013
..., industrial, and pri- vate research centers in Great Britain, Continental Europe, Russia, and Scan- dinavia.1 The reports he compiled of these visits are comprehensive, confidential and visually striking documents. Large, bound volumes, they contain hundreds of photographs of laboratories and apparatus...
Journal Articles
Historical Studies in the Natural Sciences. 2012; 423190–234 doi: https://doi.org/10.1525/hsns.2012.42.3.190
Published: 01 June 2012
... automatic ionospheric recorder cathode-ray tube critical frequency ionosphere magneto-ionic theory radio waves scan-frequency recorder sounder 190 | *Institute for the History and Philosophy of Science and Technology, University of Toronto, 91 Charles Street West, Toronto, Ontario, M5S 1K7, Canada...
Journal Articles
Historical Studies in the Natural Sciences. 2011; 412123–178 doi: https://doi.org/10.1525/hsns.2011.41.2.123
Published: 01 May 2011
Journal Articles
Historical Studies in the Natural Sciences. 2009; 394377–417 doi: https://doi.org/10.1525/hsns.2009.39.4.377
Published: 01 November 2009
... Making Sense of Space: The History of Norwegian Space Activities, ed. John P. Collett (Oslo: Scan- dinavian University Press, 1995), 3 40. Birkeland published his results of auroral observations made in northern Norway in two monumental works that appeared in 1908 and 1913: Kristian Birkeland, The...
Journal Articles
Historical Studies in the Natural Sciences. 2009; 39163–103 doi: https://doi.org/10.1525/hsns.2009.39.1.63
Published: 01 February 2009
... properties and from the difficulties that came with comparing re- sults obtained by different detection techniques. Moreover, the scarcity of recorded events, the competition among several groups, the fast pace of tech- nical improvements (like multiplate chambers or stripped emulsions), and the variegated...
Journal Articles
Historical Studies in the Natural Sciences. 2008; 384479–507 doi: https://doi.org/10.1525/hsns.2008.38.4.479
Published: 01 November 2008
..., National Science Foundation; ORNL, Oak Ridge National Laboratory, Oak Ridge, TN; PDP, Program Data Processors; SLAC, Stanford Linear Accelerator Center, Menlo Park, CA; SMP, Scanning and Measuring Projector; SPEAR, Stanford Positron Electron Accelerating Ring; TID, Technical Information Division, AEC; TM...
Journal Articles
Historical Studies in the Natural Sciences. 2008; 382259–301 doi: https://doi.org/10.1525/hsns.2008.38.2.259
Published: 01 May 2008
... began an experimental investigation of Boveri s hypothesis by de- veloping a quantitative method for analyzing chromosomes using electronic scanning. He also developed a computerized pattern recognition program to measure and classify chromosomes. His objective was to characterize quanti- tatively the...
Journal Articles
Historical Studies in the Natural Sciences. 2005; 36135–70 doi: https://doi.org/10.1525/hsps.2005.36.1.35
Published: 01 September 2005
... two years later. Siemens-Reiniger-Werke AG, which Ruska joined in 1937, brought out the fi rst commercial electron microscope in 1939. Max Knoll fi rst described the concept of the scanning electron microscope in 1935. By that time, independent research groups were pursuing electron microscope...
Journal Articles
Historical Studies in the Natural Sciences. 2003; 341115–149 doi: https://doi.org/10.1525/hsps.2003.34.1.115
Published: 01 September 2003
... certainly no claim that would help build a practical ma- chine. The invention and development of the needed scanning technique fell to 5. Raymond V. Damadian, U.S. patent 3,789,832, Apparatus and method for detecting cancer in tissue, filed 17 Mar 1972, issued 5 Feb 1974. 6. Raymond V. Damadian, Tumor...
Journal Articles
Historical Studies in the Natural Sciences. 2000; 302349–371 doi: https://doi.org/10.2307/27757835
Published: 01 January 2000
... Moultin, Scripps Institution of Oceanography: First fifty years (Los Angeles, 1967), 92-136. 7 Weir (ref. 5), 160-168, 215-222 Thomas Wayland Vaughan to Commander Guy Davis, 28 Feb 1924, SIOD (Vaughan), Records 1924-1936, AC11, box 1, folder Correspondence, SIOA RG 37, HO General Correspondence...
Journal Articles
Historical Studies in the Natural Sciences. 1986; 16183–110 doi: https://doi.org/10.2307/27757558
Published: 01 January 1986
... 137/2715, ASD war records— organization ADM 212/158, BIR organization 1915-1917. ADM 116/1430. J.K. Gusewelle, "The Board of Invention and Research: A case study in the relations between academic sci- ence and the Royal Navy in Great Britain during the first world war," (Ph.D. thesis, University...
Journal Articles
Historical Studies in the Natural Sciences. 1986; 161135–175 doi: https://doi.org/10.2307/27757560
Published: 01 January 1986
... American Academy of Arts and Sciences Symposium on Knowledge in 20th Century America, for which this paper was originally conceived, for suggestions. The following abbreviations are used: AEC, Atomic Energy Commission; ANL, Ar gonne National Laboratory; ANL-MUC, records of ANL Metallurgical Laboratory...
Journal Articles
Historical Studies in the Natural Sciences. 1984; 142357–377 doi: https://doi.org/10.2307/27757537
Published: 01 January 1984
... Committee, "Minutes," 16/83–84, 98 (MUA). 37 J. L. Heilbron, R. W. Seidel, and B. R. Wheaton, Lawrence and his laboratory (Berkeley, 1981), 30–35. 38 Bell (ref. 2), 153 ff. McGill daily, 23 Jun 1956 Foster, "A microwave antenna with rapid saw-tooth scan," Canadian journal of physics, 36 (1958...
Journal Articles
Historical Studies in the Natural Sciences. 1950; 3115–141 doi: https://doi.org/10.2307/27757149
Published: 01 January 1950
... self explanatory not to require any decoding (e.g. Sarton, Introd Some bibliographies were scanned for information (for example, A. L. Caillet, "Manuel bibliographique des sciences psychiques") but were not used as citations. Art anc. L'Art ancien (rare book dealers, Zurich) [Various catalogues] BM...