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atomic-theory

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Journal Articles
Historical Studies in the Natural Sciences. 2017; 474494–528 doi: https://doi.org/10.1525/hsns.2017.47.4.494
Published: 01 September 2017
...Michelle D. Hoffman This paper considers educators’ debates over the proper place of the atomic theory in American and Ontario high schools during the first decade of the twentieth century, in the context of emerging, historic research on the nature of matter. In 1905, University of Toronto chemist...
Journal Articles
Historical Studies in the Natural Sciences. 1979; 10123–186 doi: https://doi.org/10.2307/27757389
Published: 01 January 1979
...Helge Kragh Copyright 1979 The Johns Hopkins University Press [Footnotes] 1 J. J. Thomson, "Cathode Rays," Phil. Mag., 44 (1897), 293–316. Thomson, "On the Structure of the Atom," Phil. Mag., 7 (1904), 237–265 The Corpuscular Theory of Matter (London, 1907). 2 P. M. Heimann...
Journal Articles
Historical Studies in the Natural Sciences. 1978; 9225–263 doi: https://doi.org/10.2307/27757379
Published: 01 January 1978
...Alan J. Rocke Copyright 1978 The Johns Hopkins University Press [Footnotes] 1 Alexander Williamson, "On the Atomic Theory," J. Chem. Soc., 22 (1869), 331. 2 David M. Knight, Atoms and Elements: A Study of Theories of Matter in the Nineteenth Century (London, 1967) William H...
Journal Articles
Historical Studies in the Natural Sciences. 1969; 137–59 doi: https://doi.org/10.2307/27757294
Published: 01 January 1969
..., 1837), 3, 150. 10 A. Ure, A Dictionary of Chemistry (London, 1821), Article "Equivalents (Chemical)." 11 Ibid. 12 Wollaston, "On the elementary Particles of certain Crystals," Phil. Trans., 103 (1813), 51–63. C. Daubeny, An Introduction to the Atomic Theory (Oxford, 1831), p. 137...
Journal Articles
Historical Studies in the Natural Sciences. 1961; 740–56 doi: https://doi.org/10.2307/27757204
Published: 01 January 1961
... gen et corr. commentaria, Venice, 1577, p. 68. 69 M. Fakhry, op. cit. K. Lasswitz, Geschichte d. Atomtistik, Hamburg, 1890, Vol. I, p. 192. STUDIES IN THE DEVELOPMENT OF ATOMIC THEORY MARTIN LEVEY* A. early arabic atomism IITTLE attention, unfortunately, has been paid to the development of...
Journal Articles
Historical Studies in the Natural Sciences. 2017; 473268–292 doi: https://doi.org/10.1525/hsns.2017.47.3.268
Published: 01 June 2017
...Alan J. Rocke In 1892, the young but already eminent physical chemist Pierre Duhem published a 64-page monograph on chemical theory. The essay comprised his first extended statement on atomic-molecular ideas in chemistry, and contained a frontal attack on the chemical atomic theory of his day...
Journal Articles
Historical Studies in the Natural Sciences. 2015; 45114–48 doi: https://doi.org/10.1525/hsns.2015.45.1.14
Published: 01 February 2015
... portrayal of a safe atomic future. This article examines how concerns over low-level radiation from fallout facilitated acceptance of the then-controversial somatic mutation theory of carcinogenesis, which became an enduring feature of cancer biology. © 2015 by the Regents of the University of California...
Journal Articles
Historical Studies in the Natural Sciences. 1949; 265–80 doi: https://doi.org/10.2307/27757135
Published: 01 January 1949
...R. Hooykaas Copyright 1949 University of Pennsylvania Press THE EXPERIMENTAL ORIGIN OF CHEMICAL ATOMIC AND MOLECULAR THEORY BEFORE BOYLE R. HOOYKAAS* INTRODUCTION THE opinion prevails that Dalton revived the ancient atomic theory by founding it on the basis of experiment. We should not forget...
Journal Articles
Historical Studies in the Natural Sciences. 1975; 6513–547 doi: https://doi.org/10.2307/27757348
Published: 01 January 1975
...), 258 T. J. Trenn, ed., Radioactivity and Atomic Theory (London, 1975), p. 210. 116 Rutherford, op. cit. (note 69), pp. 398–399. 111 Ibid., p. 399. E. M. Wellisch and H. L. Bronson, "The Distribution of the Active Deposit in an Electric Field," Phil. Mag., 23 (1912), 714–729. 119 W. T...
Journal Articles
Historical Studies in the Natural Sciences. 2004; 35167–93 doi: https://doi.org/10.1525/hsps.2004.35.1.67
Published: 01 September 2004
... remained a key element of Sommerfeld's research agenda until (and even beyond) the advent of Niels Bohr's ““planetary”” model of the atom in 1913. ©© 2004 by The Regents of the University of California. All rights reserved. 2004 SUMAN SETH* Quantum theory and the electromagnetic world-view HSPS...
Journal Articles
Historical Studies in the Natural Sciences. 2009; 39132–62 doi: https://doi.org/10.1525/hsns.2009.39.1.32
Published: 01 February 2009
... initio methods, as they became known, produced the results that helped validate the use of quantum mechanics in many-body atomic and molecular systems, but carrying out the computations became increasingly laborious and difficult as better agreement between theory and experiment was pursued and more...
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
... line in experiments with helium-oxygen mixtures. This is the story of how the enigma of the green auroral line was finally resolved and explained by the quantum theory of atoms, namely as a transition between two metastable states of oxygen. It is also the story of two of the period's leading...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-241–49 doi: https://doi.org/10.1525/hsns.2020.50.1-2.41
Published: 02 April 2020
... Wajcman (Cam- bridge, MA: MIT Press, 2008), 635 90. 17. Gabriel Henderson, Adhering to the Flashing Yellow Light : Heuristics of Moderation and Carbon Dioxide Politics during the 1970s, HSNS 49, no. 4 (2019): 384 419; Michelle D. Hoffman, Just a Theory: The Atomic Theory Debate and High School...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-2129–182 doi: https://doi.org/10.1525/hsns.2020.50.1-2.129
Published: 02 April 2020
... them. He could formulate the first fundamental conclusions that comprised the nucleus of the theory of periodicity and could demonstrate an almost completed graphic representation of the system of elements, based on their atomic weight and chemical affinity. But the most dif- ficult part of the job...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-2209–216 doi: https://doi.org/10.1525/hsns.2020.50.1-2.209
Published: 02 April 2020
... briefly for the University of Minnesota and returned in 1930, all the while contributing to the nuclear theory of atomic and molecular 210 | W E S T FA L L spectra based on data from high-voltage accelerators and co-writing an acclaimed textbook the first by American authors on quantum mechanics, Theory...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-281–89 doi: https://doi.org/10.1525/hsns.2020.50.1-2.81
Published: 02 April 2020
... followed their cases into the details. In HSPS s classic articles on the old quantum theory, scientists grappled with inconsistencies, anomalies, and shifts in data and interpretation as they tried to bring new theories into being. The theme played out across studies of the Bohr atom by John Heilbron and...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-231–40 doi: https://doi.org/10.1525/hsns.2020.50.1-2.31
Published: 02 April 2020
... stand out: the intellectual ferment during the first quarter of the century, from which emerged both relativity and quantum theory; and the massive enrollment of physicists in military projects during and after the Second World War. Grappling with each of these transformations historically has elicited...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-274–80 doi: https://doi.org/10.1525/hsns.2020.50.1-2.74
Published: 02 April 2020
... editor in 1980. His inaugural note highlighted sev- eral understudied topics he hoped to include, including quantum theory, solid- state physics, meteorology, geophysics, and the invention, influence, and spread of experimental techniques. 5 In this last respect, the journal sought to advance work on...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-217–24 doi: https://doi.org/10.1525/hsns.2020.50.1-2.17
Published: 02 April 2020
... sciences since antiquity.6 Writing at a time when atomic energy, electronics, and cybernetics were transforming labor, technology, and industrial production, Kuznetsov reflected on the impact on human civilization of the early twentieth-century theories of relativity and quantum mechanics and on our ideas...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 495504–555 doi: https://doi.org/10.1525/hsns.2019.49.5.504
Published: 01 November 2019
... the cytoplasm the cell membrane . . . the outer arrow is placed as close to the inner arrow as possible, or is simply erased and forgotten. 2 Although this sharp boundary is now one of the defining characteristics of the cell, in the cell theory s first century the membrane led a more dubious life...