Summary Summary In 1908 the First International Congress of Refrigeration took place in Paris, organised by a score of French industrialists and supported by some of the major railway and shipping companies. A few months later, in January 1909, the International Association of Refrigeration was founded with the aim of encouraging the general progress of the science and industries of artificial cold. The aim of this paper consists in examining the early years of the Association with a particular focus on (...) its scientific character. The research is based on the documents published by the Association from 1908 to 1914, and on private correspondence between two of the main scientists, both Nobel Prize recipients, who played an important role in its establishment: the Swiss physicist Édouard Guillaume (1861–1938) and the Dutch physicist Heike Kamerlingh Onnes (1853–1926). Both scientists had a specific vision for their own role in the Association and for the Association itself. Their correspondence reveals a great range of tensions between the various nation-state members of the Association, its various spheres of activity, but also tensions due to personal ambitions and conflicts of interest. (shrink)

Summary This paper explores the legacy of the great French experimental physicist Victor Regnault through the example of Gabriel Lippmann, whose engagement with electrical standardization during the early 1880s was guided by Regnault's methodological precept to measure ‘directly’. Lippmann's education reveals that the theoretical practice of ‘direct’ measurement entailed eliminating extraneous physical effects through the experimental design, rather than, like physicists in Britain and Germany, making numerical ‘corrections’ to measured values. It also provides, paradoxically, exemplars of the qualitative theoretical practices (...) that sustained Regnault's misguided ambition to avoid theory. By considering the largely negative reactions to Lippmann's proposals for selecting suitable electrical units and methods of measuring the ohm, this paper associates these theoretical practices with the ineffectual rhetorical strategies employed by Lippmann to promote his work, and thereby indicates that the practice of direct measurement was limited to French experimental physics. Whilst this result aligns readily with the existence of divergent nineteenth century British and German cultures of precision, it emerges from a very different disciplinary context in which the practice of precision electrical measurement developed independently of submarine telegraphy. This is because, as this paper illustrates, telegraphic engineering and experimental physics remained separate professions in France. (shrink)