Hundreds of thousands of conferences have taken place since their first appearance in the late eighteenth century, yet the history of science has often treated them as stages for scientific practice, not as the play itself. Drawing on recent work in the history of science and of international relations, the introduction to this special issue suggests avenues for exploring the phenomenon of the international scientific conference, broadly construed, by highlighting the connected dimensions of communication, sociability and international relations. It lays (...) out a typology of scientific conferences as a way of gaining an overview of their diversity in the nineteenth and twentieth centuries. It argues that the international scientific conference is a central locus for understanding science as a social, cultural and political practice. (shrink)

“Today I made the ascent of the highest mountain in this region, which for good reasons is called Ventosum, guided only by the desire to see the extraordinary altitude of the place”. Petrarch's ascent of the Mont Ventoux in 1336, or rather his account of it, established the mountain as a distinctive place for experiencing and understanding nature and self. Since then, the mountain has been sought out in increasing numbers by those pursuing spiritual elevation, bodily exertion, and/or scientific investigation. (...) To this day, a pilgrimage church, several hotels, and an observatory are characteristically perched atop Mont Ventoux. And it is famous among cyclists as a legendarily difficultétapeof the Tour de France. (shrink)

The move online of almost all meetings in 2020 in the wake of the COVID-19 pandemic threw into sharp relief the taken-for-granted centrality of conferences within scientific culture. While its impact on science has yet to be fully grasped, for the authors of this special issue, this situation held heuristic power for understanding the meanings and functions, now and historically, of international scientific conferencing. Ongoing discussions in the academic world about the pros and cons of virtual meetings bring out the (...) central place of presence in these events and its mediation across space and time by modern infrastructures and technologies. From their rise in the mid-nineteenth century to the experiences of the present day, as well as in imagined futures, international conferences have been about communication. Following James Carey, they can be considered both as places for sharing knowledge and as rituals aimed at fostering and performing communities. (shrink)

With their landmark architectures, exhibitions and museums of science and technology partake in the spatial inscription of science in twentieth century landscapes. Unlike other beacons of progress, exhibitions and museums of science and technology double up, inside, as material arrangements of objects, visuals and texts aiming to confer meaning onto the modern world. They both embody and seek to order the spectacle of modernity while often being deployed with the aim of promoting particular visions of social and material progress. An (...) approach sensitive to the material, spatial, and experiential dimensions of displaying science and technology suggests that exhibitions and museums were in the twentieth century crucial sites for reflecting upon and promoting particular futures. (shrink)

The issue of shifting scales between the microscopic and the macroscopic dimensions is a recurrent one in the history of science, and in particular the history of microscopy. But it took on new dimensions in the context of early twentieth-century microscophysics, with the progressive realisation that the physical laws governing the macroscopic world were not always adequate for describing the sub-microscopic one. The paper focuses on the researches of Jean Perrin in the 1900s, in particular his use of Brownian motion (...) to produce evidence of the existence of atoms and in favour of the kinetic theory. His results were described by many contemporaries, and subsequently by historians, as the first direct proof of atomic and molecular reality. The paper examines the different strategies developed by Perrin for bridging the macro and sub-microphysical realms and making the latter accessible to the senses; even though neither atoms nor molecules were ever actually seen, and in fact very few visual representations were shown and published in connection with these experiments. This case provides a good example of how visualizing, representing and convincing could be interwoven in the production of evidence about the sub-microphysical realm circa 1900.Keywords: Jean Perrin; Brownian motion; Ultramicroscope; Evidence; Atom; Atomism. (shrink)