•  198
    This paper discusses a series of case studies on observations, experiments, and the theoretical interpretation between 1890 and 1960 of a shift of dark Fraunhofer lines in the solar spectrum. I argue for the use of flow charts to analyze interconnections and to identify sequences of research strategies. Also I advocate using a newly-developed tool called "block diagram" representation of experimental systems as an appropriate method to identify recurrent patterns in the interplay of instrumentat…Read more
  •  47
    Einstein's attitude towards experiments: Testing relativity theory 1907–1927
    Studies in History and Philosophy of Science Part A 23 (4): 593-624. 1991.
  •  32
    Why not one more imponderable? John William Draper's tithonic rays
    Foundations of Chemistry 4 (1): 5-59. 2002.
    This paper reconstructs what may have led the American professorof chemistry andnatural philosophy John William Draper to introduce a new kind ofradiation, whichhe dubbed `Tithonic rays''. After presenting his and earlierempirical findings onthe chemical action of light in Section 3, I analyze his pertinentpapers in Section 4with the aim of identifying the various types of argumentshe raised infavor of this new actinic entity (or more precisely, this newnatural kind of raybesides optical, therma…Read more
  •  31
    Der Vergleich als Brücke zwischen Wissenschaftsgeschichte und Wissenschaftstheorie
    Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 34 (2): 251-275. 2003.
    Comparisons as a Bridge between History and Philosophy of Science. Both in history and philosophy of science, comparisons are looked upon with considerable skepticism. A widespread syndrome of casuitis, i.e., the tendency of historians of science to produce extremely narrow and local studies that do not present a case for any broader thesis of interest to philosophers, has widened the gulf between history and philosophy of science.This may be somewhat surprising to sociologists, philosophers, or…Read more
  •  26
    Die Korrespondenz der beiden Physiker und Wissenschaftshistoriker Ernst Mach und Pierre Duhem ist weitgehend, vielleicht mit Ausnahme nur eines Briefes, erhalten. Neben der Dokumentation dieser historischen Zeugnisse setzt sich der Autor in diesem Aufsatz zum Ziel, die jeweiligen Motive, die Mach resp. Duhem zur Beschäftigung mit Wissenschaftsgeschichte führten und die damit verbundenen Modelle der Wissenschaftsgeschichtsentwicklung beider gegeneinander abzugrenzen. Dazu wurden insb. die in der …Read more
  •  25
    Macedonio Melloni über strahlende Wärme
    NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin 13 (4): 216-237. 2005.
    For more than twenty years, Macedonio Melloni (1798–1854) experimented with radiant heat rays. Until 1841 he thought of them as ontologically different from light, but in 1842 he converted to the opposite view according to which they are similar in kind, but only differ in wavelength. In this article I analyze the arguments which induced him to change his interpretation of radiant heat and I describe the instruments with which he arrived at these insights
  •  23
    Philosophical Interpretations of Relativity Theory: 1910-1930
    PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1990. 1990.
    The paper (given in the section on "Recent work in the History of Philosophy of Science) discusses the method and some of the results of the doctoral dissertation on philosophical interpretations of Einstein's special and general theories of relativity, submitted to the Dept. for History of Science, Univ. of Hamburg, in 1989, also published by Birkhauser, Basel, in 1990. It is claimed that many of the gross oversimplifications, misunderstandings and misinterpretations occurring in more than 2500…Read more
  •  22
    Despite a renewed interest in the philosophical prehistory of logical empiricism, several texts by prominent figures such as, e.g., Moritz Schlick and Hans Reichenbach, published in non-standard journals, have escaped the notice of scholars. Here, a hitherto virtually unknown but significant review of Moritz Schlick's influential book Allgemeine Erkenntnislehre [1st ed. 1918] written by Hans Reichenbach in 1919/20 is reprinted together with comments about its background and the later development…Read more
  •  19
    Es wird die wechselseitige Beeinflussung Einsteins und Schlicks anhand ihrer ab 1915 erhaltenen Korrespondenz in vier Schwerpunkten untersucht. Schlicks Selbstverständnis als Philosoph wie auch einzelne Themata seines Denkens bildeten sich mit seiner Auseinandersetzung um die Relativitätstheorie Einsteins heraus, deren systematische Explikation durch Schlick auf Einsteins Beifall stieß. Als die Ursache für das Auseinanderdriften beider Denker nach 1925 werden fundamentale Differenzen im Wirklich…Read more
  •  18
    Compendium of Quantum Physics (edited book)
    with Daniel Greenberger and Friedel Weinert
    Springer. 2009.
    Concepts, Experiments, History and Philosophy Daniel Greenberger, Klaus Hentschel, Friedel Weinert. 5. W. Hittorf, Ueber die Elektricit ̈atsleitung der Gase , Annalen der Physik 136, 1–31, 197–234 (1869); Engl. transl. On the Conduction of ...
  •  16
    DSI: The Stuttgart Database of Scientific Illustrators 1450–1950
    Spontaneous Generations 6 (1): 182-191. 2012.
    The main features of a new online database of scientific illustrators are portrayed. We list illustrators of scientific publications of all genres (especially atlases, articles, textbooks) who were active between 1450 and 1950, thus excluding illuminators of medieval manuscripts as well as illustrators still active. Currently (Sept. 26, 2012), we already have more than 3,461 entries, with particular emphasis on anatomy, dermatology, botany, zoology, mineralogy, astronomy, and general natural his…Read more
  •  15
    An effort of proponents of relativity theory to find evidence for the so-called gravitational red-shift of spectral lines as one of the experimental consequences of Einstein's generalized theory of relativity is reconsidered with reference to hitherto unpublished documents. It is shown how much interest Albert Einstein in fact took, around 1920, in the data analysis of Leonhard Grebe and Albert Bachem, who tried to explain why most earlier efforts to find the gravitational red-shift had failed. …Read more
  •  14
    Einstein, Neokantianismus und Theorienholismus
    Kant-Studien 78 (1-4): 459-470. 1987.
  •  14
    Measurements of gravitational redshift between 1959 and 1971
    Annals of Science 53 (3): 269-295. 1996.
    The paper presents and discusses measurements of gravitational redshift made between 1959 and 1971 by Pound and Rebka, Schiffer and Marshall, Brault, Blamont and Roddier, and finally by Snider. It emphasizes the importance of new measurement techniques such as wavelength modulation, electronic amplification, and scattering of atomic beams to the emergence of new tests of Einstein's GRS prediction, which were perceived by the scientific community as the first ‘clean’ verifications of GRS. In part…Read more
  •  12
    A breakdown of intersubjective measurement: The case of solar-rotation measurements in the early 20th century
    Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 29 (4): 473-507. 1998.
  •  11
    Objectivity - by Lorraine Daston and Peter Galison
    Centaurus 50 (4): 329-330. 2008.
  •  11
    Friedrich Hund zum 100. Geburtstag
    with Renate Tobies
    NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin 4 (1): 1-18. 1996.