Das Problem der “entscheidenden Experimente”

In this historical essay an attempt is made to discuss the problem of decisive experiments both from the point of view of History of Science and of Philosophy of Science. The first part deals with Francis Bacon's idea of instantiae crucis and with the use of the term experimentum crucis mainly in optics. With respect to the experimental confirmation of Maxwell's electrodynamics the Duhem-Quine Thesis is discussed. Duhem had argued that not a single hypothesis but only a complete theory is examined by experiment. So a single experiment neither can prove nor can disprove a single hypothesis. With regard to Bucherer's and Neumann's data concerning the velocity-dependence of the electron's mass the question of the certainty of conclusions arising from experimental tests is treated. In the last parts the really historical problem of the decisive experiments is considered, namely the gap between the context of design of an experiment and the context of evaluation of an experiment in retrospect. The examples here are the Michelson-Morley experiment, the Franck-Hertz experiment, and the Compton-Effect. In the conclusion parity violation is discussed. Perhaps due to the possibility of a single alternative in theory and an unambiguous result of the experiment this test really was crucial. In general, however, the experimentum crucis will prove to be a very seldom event.     

Thinking Past Henri Lefebvre: Introducing “The Theory of Ground Rent and Rural Sociology”

This introduction to the translation of Henri Lefebvre's 1956 essay “The theory of ground rent and rural Sociology” moves through three stages. First, it suggests that Anglophone appropriations of Lefebvre have tended to focus too much on his urban writings, at the expense of understanding his early work on rural sociology, and failing to recognise how his urban focus emerged as a result of his interest in rural–urban transformation. Second, it provides a summary of his wider work on rural questions, including his unfinished work on a major treatise of rural sociology; and outlines the key themes of the present essay in relation to these other projects. Third, it connects Lefebvre's issues to wider debates in political economy and geography about aspects of the rural, land and ground rent, not least including the work of Antonio Gramsci and José Carlos Mariátegui.     

“I spent the first year drinking tea”: Exploring Canadian university researchers’ perspectives on community‐based participatory research involving Indigenous peoples

Community‐based participatory research (CBPR) is generally understood as a process by which decision‐making power and ownership are shared between the researcher and the community involved, bi‐directional research capacity and co‐learning are promoted, and new knowledge is co‐created and disseminated in a manner that is mutually beneficial for those involved. Within the field of Canadian geography we are seeing emerging interest in using CBPR as a way of conducting meaningful and relevant research with Indigenous communities. However, individual interpretations of CBPR's tenets and the ways in which CBPR is operationalized are, in fact, highly variable. In this article we report the findings of an exploratory qualitative case study involving semi‐structured, open‐ended interviews with Canadian university‐based geographers and social scientists in related disciplines who engage in CBPR to explore the relationship between their conceptual understanding of CBPR and their applied research. Our findings reveal some of the tensions for university‐based researchers concerning CBPR in theory and practice.     

“The Old Man is Dead”: Hip Hop and the Arts of Citizenship of Senegalese Youth

The 2012 Senegalese presidential elections engulfed the country in unprecedented controversy, violence, and protest. Urban youth in Dakar animated the massive opposition movement that eventually led to the incumbent's defeat through voter registration, public critique, and mass mobilization. Two prominent factors fomenting youth action were the direct engagement of a host of well known rappers and the pervasive power of hip hop culture. This article probes the valence of the globalized art form of hip hop as a medium of political identity formation and a language of resistance in these elections through considering the spatial practices and imaginaries of rappers and their followers. It argues that hip hop fosters new geographies of citizenship inspiring urban youth to transgress prescribed boundaries in allowed speech and political behavior to make new claims on their city and nation. Insight is drawn for understanding youth politics, the power of music, and questions of urban citizenship.     

WHITE,FRIEDLÄNDER, “… AND THE REST IS HISTORY”: A PAX HISTORIANA

Close analysis of the ostensive disagreement between Saul Friedländer and Hayden White on the necessarily literary character of Holocaust historiography shows instead of conflict two compatible and even mutually supportive emphases in that project: the assumption in modernist and disruptive narratives as elsewhere of a “corpus of facts,” together with the role of figurative discourse in conveying relevant features of events that linear chronological or causal narratives alone do not convey.     

“Partitioning the Sensible” at Park 51: Rancière,Islamophobia, and Common Politics

Abstract: This paper uses Jacques Rancière's conception of the partition of the sensible to interrogate the aesthetic regimes and spatial coordinates that animated public debate about Park 51—the Islamic community center near the World Trade Center site in Manhattan. Understanding conflicts over mosques as potential struggles over the conditions of membership in a community, I suggest that many of the arguments in favor of Park 51 reinforced a partition of the sensible in which Islamophobia could resonate. At stake in these debates—which turned on different understandings of the distance that separated the proposed center from the WTC site—is the relationship between American Muslims and the narratives of trauma constructed around the September 11th attacks. I conclude by exploring the projects proposed by Park 51 organizers as potential sites of everyday micropolitics that could subtly “jolt” existing orders in the interest of reconfiguring the “common sense” of a community.     

“Power to the people”: Contesting urban poverty and power inequities through open GIS

Geospatial technologies are central to spatial decision making and governance, but gaining equitable access to these is still difficult for traditionally marginalized communities. We contend that the dominance of proprietary GIS software has contributed to this digital divide, as these are inherently disempowering to marginalized social groups. Their high purchasing cost and licensing fees pose access barriers to resource‐poor citizens. Design of proprietary software may also not be appropriate for marginalized groups who are neither trained in GIS, nor represent the needs of dominant market base. Therefore, “free and open source software for geospatial” (FOSS4G) and open GIS provide new opportunities in democratizing GIS, as these are open code and free of purchasing and licensing costs. This paper aims to discuss the role of open GIS in advancing the goals of public participation GIS (PPGIS). We first discuss the origins of the FOSS movement, and explore the ways it has shaped the FOSS4G and open GIS movements. Next, we examine how a community information system built with open GIS software is being successfully utilized by an environmental organization in Milwaukee, to contest urban poverty. Our research demonstrates that open source GIS offers unique opportunities in advancing PPGIS research and practice.     

“Die wissenschaftliche Ausbildung des Arztes ist eine Culturfrage …”. Über das Verhältnis von Wissenschaftsanspruch,Bildungsprogramm und Praxis der Medizin

The article shows that the elite, nationalistic and imperial mentality of German medicine in the second half of the nineteenth century was closely connected to its aim to be understodd as a natural science. With this in view leading representatives of German medicine propagated a scientific approach to man and nature instead of the traditional values of humanistic education (“Bildung”). One of the most important consequences of the new scientific ideal in medicine — integration in governmental planning, the change in professionel status of doctors, the increasing tendeny to recognize biologistic ideologies — was the loss of the medical ideal of the ars medica, a subject which has not received sufficient thematic attention. This theme is explored in the third part of the article.     

„Und nur die Zukunft wird Klarheit bringen!”︁Der Fall des Biomediziners Jacques Benveniste aus dem Jahr 1988 im Blickfeld der wissenschaftlichen Publikationsorgane und der Laienpresse

Scientific disputes on the objectivity of research results are an integral part of the collective production of knowledge. One motivation to study cases of scientific controversy is the attempt to discover general patterns in the behaviour of participants and institutions involved in such controversies. Yet, for there to be a controversy, one must assume an important amount of social interaction, so much so that it renders it an essentially social phenomenon, which is accessible to historical study. Cases of obvious scientific fraud, in addition, are neither clear‐cut nor rare and the mere accusation of scientists by their peers frequently constitutes considerable examples of scientific debate. Together with this, it is often assumed that publication organs play a dominant role in directing the lines of scientific controversy, but their institutional significance and the task of individual editors remain widely unexplored. The present article studies the prominent Nature affair of the Parisian biomedical scientist Jacques Benveniste, both, from a perspective on scientific fraud and on the beginning and closure of scientific disputes. One of the most remarkable features of Benveniste's antibody dilution experiments was that they stroke at the foundations of modern physical and biomedical sciences. Could recent history of science actually resolve the case of the so‐called ‘memory of water’ phenomenon?     

“Hungry for Knowledge”: Towards a Meso‐History of the Environmental Sciences

In recent years, cultural studies and cultural theory have experienced a new wave of ecological thought. Despite the engagement with the Anthropocene the history of ecology and the environmental sciences has remained somewhat of a puzzle. This goes especially for the 20^th century, a period when the sciences of the environment came to matter on a broader scale. Why do we actually know so little about the environmental sciences in the 20^th century? And what could a history of the environmental sciences in that period look like? This article answers these questions with two interrelated arguments. First, by reflecting on different approaches to write the history of ecology since the 1970s, it uncovers crucial entanglements between the history of science and ecological thought that created blind spots regarding the environmental sciences in the 20^th century. Second, it argues for a shift in scales of analysis—towards meso‐scales. With a more regional approach historians can engage with the often‐neglected aspects of the political and economic history of the environmental sciences in the 20th century and thereby also reveal their fundamental infrastructural dimension. Because at its core, the article claims, the environmental sciences were and are essentially infrastructural sciences.