Le scepticisme et les hypothèses de la physique

The History of scepticism from Erasmus to Spinoza is often called upon to support three theses: first, that Descartes had a dogmatic notion of systematic knowledge, and therefore of physics; second, that the hypothetical epistemology of physics which spread during the xviith century was the result of a general sceptical crisis; third, that this epistemology was more successful in England than in France. I reject these three theses: I point first to the tension in Descartes’ works between the ideal of a completely certain science and a physics replete with hypotheses; further, I argue that the use of hypotheses by mechanical philosophers cannot be separated from their conception of physics; finally I show that, at the end of the xviith century, physicists in France as well as in England spoke through hypotheses and I examine different ways of explaining this shared practice. Richard H. Popkin’s book serves therefore as a starting point for insights into the general problem: to what extent and for what reasons some propositions in physics have been presented as hypotheses in the xviith century?     

« <Emphasis Type="Italic">What is the best theory of generation</Emphasis>? » : Argumentation et débats d’étudiants en médecine à La Société Royale de médecine d’Édimbourg au dix-huitième siècle

This article proposes a different approach to the long generation controversy that divided naturalists in eighteenth-century Europe between those in favour of preformationism, on the one hand, and supporters of the theory of epigenesis on the other. This controversy has mostly been studied through the publications of the intellectual elite, that was constituted of medical doctors, natural historians, philosophers, and theologians. Rather than reviewing the ideas and antagonisms of the direct agents of the controversy, I will attempt to approach it from the margins. What is the legacy of a long-term controversy when it seems to be over? How was such an extended controversy perceived by contemporaries that would only have a fragmented access to quarrel? What is the role of scientific disputes in the education of doctors? I will address these questions by analyzing four essays written by medical students of the Royal Medical Society of Edinburgh.     

A pottery workshop with flint tools on blades knapped with copper at Nausharo (Indus civilisation, ca. 2500 BC)

Twenty years after its discovery, the pottery workshop of Nausharo (province of Baluchistan, Pakistan), which yielded a series of knapped stone tools in association with unbaked sherds and clay waste, is still of unique importance in Asian protohistorical studies. The types of pottery production (sandy marl fabrics) identified in this workshop, which is dated to ca. 2500 BC, correspond to the majority of the domestic pottery discovered at the site during the first two phases of the Indus Civilisation. The flint blades discovered in the workshop were made from exotic flint, coming from zones close to the great Indus sites such as Mohenjo-Daro and Chanhu-Daro. This is also the origin of a small amount of the pottery (micaceous fabrics) found at Nausharo in domestic contexts, e.g. Black-Slipped-Jars. The butts of the blades display features characteristic of pressure detachment with a copper pressure point. Gloss and microwear traces (polish) testify to the blades' having been used for finishing the clay vessels: for actual finishing (trimming) while they were being turned on a wheel, and possibly also for scraping by hand. Both of these operations are distinctly attested to by the presence in the workshop of two different types of clay shavings.     

Liquid passions: bodies,publics and city waters

This article explores water’s capacities as a vibrant matter with specific properties that generates passions, attachments and a sense of belonging, and which enrols bodies in new connections, socialities, alliances and politics in unpredictable ways. Based on research into practices and engagements with water in a large urban public space the paper builds on studies of blue space. It concludes that water has the capacity to enhance a sense of well-being in those that swim in it and to mobilise a very particular sense of embodiment which gives this form of public space its distinctiveness constituting new forms of sociality and connections amongst diverse individuals. It seeks to do this by paying attention to the experiences of things themselves and the active participation of nonhuman forces in events and the ‘vital materiality’ that runs through and across bodies both human and non-human. The article also explores water’s capacity to be constituted and defined by experts as dangerous and risky matter, and to thus engender political associations and connections amongst diverse groups who seek to oppose such expert interventions.     

Atoms in wonderland

This paper examines the representation of atomic science in Britain in museums, exhibitions, and print in the period 1945–1960. Due to postwar shortages, authors and publicists initially relied more on the written text than on visual representation. Underlying much writing was the idea of the “intelligent layman,” which formed a shorthand way of conceptualizing the non‐specialist reading public, and accounts for much of the approach and tone of writing. The paper then examines the constraints of presenting atomic science in the Science Museum, London, and the 1951 Festival of Britain, as well as a range of publications for the wider market. These include the official publications of the UK Atomic Energy Authority, the enthusiastic output of the Institute of Atomic Information for the Layman, as well as works such as George Gamow's Mr. Tompkins in Wonderland. The use of images from Alice in Wonderland is examined as recurring motif for presenting an optimistic view of the benign potential of atomic science.     

Spaces of nostalgia: the hollowing out of a London market

In this paper we look at the place of memory and nostalgia in peoples' narratives of an old, traditionally white, working-class market in London, which over the last decade has experienced social and economic decline. We argue that in this hollowed out space, abandoned by many of those who can move, has emerged a nostalgia for the halcyon days of the market when people came from far and wide to shop, and when there was a strong sense of community. What these nostalgic discourses mask are the social divisions (particularly racialized divisions) of the time, while in this romanticized vision of the past, the new population of asylum seekers have become an easy trope for the dissatisfactions of the present. Regeneration strategies in an area such as this need to confront the force of these nostalgic discourses in order to tackle the deep social and racial divisions and reverse the socio-economic decline.