1-20 of 21 Search Results for

milky-way-appearance

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles
Historical Studies in the Natural Sciences. 2017; 472200–254 doi: https://doi.org/10.1525/hsns.2017.47.2.200
Published: 01 April 2017
... their intuitive ability to organize data according to the appearance of the Milky Way, even as they had to avoid the influence of personal experience and theoretical presuppositions about the shape of the system. With this method, Pannekoek produced results that went against the Kapteyn Universe and...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 494420–446 doi: https://doi.org/10.1525/hsns.2019.49.4.420
Published: 01 September 2019
... its peak. After that point the planet, in turn, appeared to shrink away from the telescope s gaze each subsequent night. The weeks immediately before and after the opposition were a prime time for astronomers to study and survey Mars. However, as the January Herald article To Spy the Martians When...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 492151–193 doi: https://doi.org/10.1525/hsns.2019.49.2.151
Published: 01 April 2019
... clue to the origin of the universe. It was instead a confounding impediment to their planned program of research. They had been calibrating the antenna with the intention of measuring the faint halo of radiation around the Milky Way and ascertain- ing whether matter in the form of hydrogen diffused...
Journal Articles
Historical Studies in the Natural Sciences. 2018; 485604–615 doi: https://doi.org/10.1525/hsns.2018.48.5.604
Published: 01 November 2018
... at all (see Fig. 2). The image reminds one of a star map, Johannsen explained. But if the law of a rise in nitrogen percentage with grain weight was strictly typical, one would have to find a dense Milky Way of points ascending from left to right. 24 22. Ibid., 244. 23. Roll-Hansen, Sources...
Journal Articles
Historical Studies in the Natural Sciences. 2012; 425432–475 doi: https://doi.org/10.1525/hsns.2012.42.5.432
Published: 01 November 2012
... astronomical models, had been placed near the center of the Milky Way.15 This work has been the subject of significant historical treat- ment, particularly in relation to the so-called Great Debate of 1920 staged between Shapley and the astronomer Heber D. Curtis.16 From that period on, Shapley put forward...
Journal Articles
Historical Studies in the Natural Sciences. 2005; 352371–382 doi: https://doi.org/10.1525/hsps.2005.35.2.371
Published: 01 March 2005
... at Mount Wilson Observatory; about the roles of new physical principles, spectrography, photography, and of more effective telescopes; about the discoveries of new galaxies and variable stars, notably the Great Debate between Harlow Shapley and Hebert Curtis in 1920 over whether the Milky Way...
Journal Articles
Historical Studies in the Natural Sciences. 2004; 342277–309 doi: https://doi.org/10.1525/hsps.2004.34.2.277
Published: 01 March 2004
... Paris Academy of the Sciences in the 17th and 18th centuries. Shortly before his death last year, Professor Holmes agreed with the editor that the most convenient way to make his important results on this topic available was to publish the completed chapters in successive issues of HSPS . The abstract...
Journal Articles
Historical Studies in the Natural Sciences. 2003; 34141–68 doi: https://doi.org/10.1525/hsps.2003.34.1.41
Published: 01 September 2003
... used references to Boyle s observations merely as occasions to remind the com- pany of similar observations that he himself had made, even though he had already described many of them before.35 The nature of his remarks suggests that Duclos was still searching for ways to appear active to his...
Journal Articles
Historical Studies in the Natural Sciences. 2001; 32119–40 doi: https://doi.org/10.1525/hsps.2001.32.1.19
Published: 01 September 2001
... material. Yet, their direct contribution to technoscientific development is rarely considered; the necessity to resolve press- ing technical problems with certified knowledge does not appear conducive to innovative research. In the now widely discredited linear model of technological development,1 research...
Journal Articles
Historical Studies in the Natural Sciences. 2000; 31155–92 doi: https://doi.org/10.2307/27757846
Published: 01 January 2000
... Council. 25. "Memorandum" (ref. 24). Shapley doubtless stressed galactic and extra-galactic re search because it had been cut from eight assistants to one, and Bok's Milky Way Bureau 64 DEVORKIN "There is evidently a real need for means to support individual research by younger astronomers, particularly...
Journal Articles
Historical Studies in the Natural Sciences. 1999; 30149–87 doi: https://doi.org/10.2307/27757820
Published: 01 January 1999
Journal Articles
Historical Studies in the Natural Sciences. 1997; 272357–372 doi: https://doi.org/10.2307/27757783
Published: 01 January 1997
... merits close attention. He played key roles in the "discoveries" of galaxies beyond the Milky Way and of the expanding universe, as well as in defining how observational cosmol ogy should be pursued. Hubble''s cosmology serves as a good introduction to all these topics by reprinting key sections of...
Journal Articles
Historical Studies in the Natural Sciences. 1994; 251177–183 doi: https://doi.org/10.2307/27757739
Published: 01 January 1994
... Paul, Erich Robert. The Milky Way Galaxy and statistical cosmology, 1890-1924. New York: Cambridge University Press, 1993. xiv, 262 pp: illus. Erich Paul weaves together several different themes in his treatment of cosmology at the turn of the 20th century; in a shift in conceptual tools, the formation...
Journal Articles
Historical Studies in the Natural Sciences. 1993; 232337–366 doi: https://doi.org/10.2307/27757702
Published: 01 January 1993
... assure their reliability. Despite its modest appearance (a milky yellowish fluid) and its ease of use, Freund's adjuvant played a central role in moving immu nology beyond the study of infectious diseases and shaped many lines of inquiry dealing with interactions among cells in the immune response. The...
Journal Articles
Historical Studies in the Natural Sciences. 1991; 221165–192 doi: https://doi.org/10.2307/27757676
Published: 01 January 1991
... stressed that knowledgeable researchers inclined to believe more and more that "the radiation from above is a phenomenon whose origin is to be sought in the cosmos_The source of the radiation seems to be the Milky Way or, at least, it has a maximum there; this, indirectly, supports the hypothesis that this...
Journal Articles
Historical Studies in the Natural Sciences. 1989; 201107–178 doi: https://doi.org/10.2307/27757637
Published: 01 January 1989
... Naturphilosophie" to designate all other combina tions of scientific research, romantic notions, and idealistic philosophy that appeared through this period.3 3. For a more detailed distinction between different types of Naturphilosophie, see D. Engelhardt, Hegel und die Chemie. Studie zur Philosophie und...
Journal Articles
Historical Studies in the Natural Sciences. 1989; 192211–266 doi: https://doi.org/10.2307/27757626
Published: 01 January 1989
... Bolivia; the other, close to California mountain lakes. The results: cosmic rays came equally from all direc tions of the sky, with no influence of the sun or the Milky Way, and their intensity seemed unaffected by atmospheric events or by geomag netic latitude. Millikan and Cameron drew a new depth...
Journal Articles
Historical Studies in the Natural Sciences. 1982; 13141–67 doi: https://doi.org/10.2307/27757505
Published: 01 January 1982
... possibility of statistical equilibrium of the universe," Akademie van Wetenschappen, Proceedings, 23 (1921), 866-868; de Sitter (ref. 8). 44 HETHERINGTON the Milky Way by his colleague at Leiden, J. H. Oort, found that the density of the universe is significantly greater than zero.11 The result was a crisis...
Journal Articles
Historical Studies in the Natural Sciences. 1965; 1025–52 doi: https://doi.org/10.2307/27757246
Published: 01 January 1965
... rational way of preparing Animals, Vegetables, and Minerals, for a Physical Use, by Edward Bolnest ("Is. 6d.") The Chirurgeons Store-house, by Johannes Scultetus ("8s.") The Golden Calf, by J. F. Helvetius ("Is."). Donald Wing, Short-Title Catalogue 1641– 1700, New York, 1948–1951, 3 vols. 71...
Journal Articles
Historical Studies in the Natural Sciences. 1962; 841–61 doi: https://doi.org/10.2307/27757217
Published: 01 January 1962
.... 93 Robert Boyle, "Short Memoirs for the Natural Experimental History of Mineral Waters Addressed By Way of a Letter to a Friend," London, 1684/5, fol. A2. 94 Thomas Willis, "Practice of Physick," trans. S. Pordage, London, 1684, pp. 40–41. Willis's "Diatribae duae Medico- Philosophicae...