Spending six months in Rome in 1689 Gottfried Wilhelm Leibniz (1646–1716) occupied himself with the question of Copernican and Galilean censure. An established reading of the Rome papers suggests that Leibniz’s attempt to have the Copernican censure lifted was derived solely from the equivalence of hypotheses stemming from the relativity of motion; and involved Leibniz’s compromising his belief in the truth of the Copernican hypothesis by arguing that it should only be interpreted instrumentally; and that Leibniz believed in the unrestricted (...) abolition of censure. On the contrary, I argue that if hypotheses were merely equivalent, this would not provide a reason for lifting censure of Galileo, who argued that the Earth really moves and the Church was in error on this point; that Leibniz’s position in his cosmology was indeed a kind of instrumentalism, so that it did not involve any compromise; and that Leibniz is advocating a position that Galileo should be subject to censure, not because of his physics but rather because of his misinterpretation of the status of Scripture. (shrink)

Kuhn’s account of scientific change is characterized by an internal tension between a naturalist vein, which is compatible with the revolutionary perspective on the historical development of science, and an aprioristic or Kantian vein which wants to secure that science is not an irrational enterprise. Kuhn himself never achieved to resolve the tension or even to deal with the terms of the problem. Michael Friedman, quite recently, provided an account which aspires to reconcile the revolutionary and the aprioristic elements of (...) the Kuhnian historiography by placing the latter in the neo-Kantian philosophical framework. In this paper, I suggest that Friedman manages to provide a convincing description of the structuration of scientific knowledge and, further, to present science as a rational enterprise. I argue that despite these virtues Friedman’s account faces a major problem with regard to the context of transcendental idealism which he is not willing to abandon. I also argue that discarding transcendental idealism in the way the philosophical perspective of John McDowell does, we can dispose of the flaws of Friedman’s account while retaining its virtues. (shrink)

I have always been a philosopher at heart. I write history of science and history of its philosophy primarily as a philosopher wary of his abstractions and broad conceptualizations. But that has not always been the case. Lakatos famously portrayed history of science as the testing ground for theories of scientific rationality. But he did so along the crudest Hegelian lines that did injury both to Hegel and to the history and methodology of science. Since science is ultimately rational, he (...) argued, rival methodologies can prove their mettle by competing for whose tendentiously reconstructed account of the history of science renders more of it rational! My own approach to the relationship between history and philosophy of science started out perhaps a little more open-mindedly than Lakatos’s, but in a manner no less crude. Over the years the relationship between the history I wrote and the philosophy to which I was committed took on a firmer and more reciprocal shape. It did so in the course of a process that I now realize exemplified the philosophical position it eventually yielded. I would like to trace that development in the following pages and reflect as best I can on where it has lead and left me. (shrink)

In 1675, Burchard de Volder (1643–1709) was the first professor to introduce the demonstration of experiment into a university physics course and built the Leiden Physics Theatre to accommodate this new pedagogy. When he requested the funds from the university to build the facility, he claimed that the performance of experiments would demonstrate the “truth and certainty” of the postulates of theoretical physics. Such a claim is interesting given de Volder’s lifelong commitment to Cartesian scientia. This chapter will examine de (...) Volder’s views on experiment and show that they are not Newtonian or inductivist, as is sometimes claimed. While de Volder thinks we need deductive reasoning from first principles to provide evidence of the certainty of the content of our physical theories, he also contends that we need experiment to provide evidence of the certainty of the existence of the particular bodies those theories discuss. This approach to experiment is based on a distinction between rational certainty and the certainty of material bodies in the actual world. While this account is deeply influenced by Descartes, it is importantly different than Descartes’ distinction between absolute and moral certainty. De Volder’s “Cartesian Empiricism” is best understood as a continuation and further development of a long tradition of teaching through observation at Leiden. (shrink)

Franziska Dübgen and Stefan Skupien have written a much needed overview of Paulin Hountondji’s work. While Hountondji is quite well known for his critique of ethnophilosophy, his later intellectual work on scientific dependency and his political writings are not as well known to non-specialist Anglophone readers. This partially stems from the fact that while his later work on scientific dependency has been translated into English, it has been published in the form of short articles or through transcribed interviews, which makes (...) it difficult for a reader to situate it in relation to Hountondji’s work on ethnophilosophy. Moreover, the Anglophone reception of Hountondji’s explicit political writings has been hindered by the fact that many of them have not been translated into English, e.g. his 1973 book Libertés: Contribution à la Révolution Dahoméenne, which was written as a prescription of what needs to be done by the military regime in order to end neo-colonial dependency in Benin in the aftermath of the military coup led by Mathieu Kérékou in 1972, has still not been translated into English. Dübgen and Skupien have written a book that will contribute to remedying this neglect by contextualizing Hountondji’s work on scientific dependency and his political writings in relation to his better known writings on ethnophilosophy. (shrink)

Current popular narratives regarding the history of astronomy espouse the narrative of scientific development arising from clashes between observed phenomena and dogmatic religious scripture. Such narratives consider the development of our understandings of the cosmos as isolated episodes in ground-breaking, world-view shifting events, led by rational, objective and secular observers. As observation of astronomical development in the early 1600s shows, however, such a narrative is false. Developments by Johannes Kepler, for instance, followed earlier efforts by Nicholas Copernicus to refine Aristotelian-based (...) dogma with observed phenomena. Kepler's efforts specifically were not meant to challenge official Church teachings, but offer a superior system to what was than available, based around theological justifications. Popular acceptance of a heliocentric model came not from Kepler's writings, but from the philosophical teachings of Rene Descartes. Through strictly mathematical and philosophical reasoning, Descartes not only rendered the Aristotelian model baseless in society, but also provided a cosmological understanding of the universe that centred our solar system within a vast expanse of other stars. The shift than, from the Aristotelian geocentric model to the heliocentric model, came not from clashes between theology and reason, but from negotiations between theology and observed phenomena. (shrink)

This essay examines Friedman's recent approach to the analysis of physical theories. Friedman argues against Quine that the identification of certain principles as ‘constitutive’ is essential to a satisfactory methodological analysis of physics. I explicate Friedman's characterization of a constitutive principle, and I evaluate his account of the constitutive principles that Newtonian and Einsteinian gravitation presuppose for their formulation. I argue that something close to Friedman's thesis is defensible.

Changing Perspectives – From the Experimental to the Technological Turn in History and Philosophy of Science. In the 1960s the philosophy of science was transformed through the encounter with the history of science, resulting in a collaborative venture by the name of “History and Philosophy of Science” (HPS). Philosophy of science adopted ever more regularly the format of the case study to reconstruct certain episodes from the history of science, and historians were mostly interested in the production of scientific knowledge. (...) The so‐called “experimental turn” of the 1980s owed to this interaction between philosophy and history. Its guiding question remained quite traditional, however, namely “How do the sciences achieve an agreement between representation and reality?” Only the answers to this question broke with tradition by focusing not on theory but on the role of instruments and experiments. – Roughly 30 years after the experimental turn, another transformative encounter appears to be taking place. HPS is being transformed in the encounter with philosophy of technology. From the point of view of philosophy of technology, the question does not arise whether and how the agreement of mind and world, representation and reality can be achieved. When things are constructed, built or made, human thinking and physical materiality are inseparably intertwined. Instead of seeking to describe a mind‐independent reality, technoscientific researchers are working to acquire and demonstrate capabilities of experimental or predictive control. When science is regarded as a kind of technology, a program of study opens up for epistemology and so do avenues for the historiography of science. History of science might now show how the problems and procedures of the sciences arise from and impinge back upon a world that is itself a product of science and technology. It thereby abandons its traditional HPS niche existence and joins forces with environmental history, history of technology, social, labor, and consumer history. (shrink)

Brouwer’s intuitionistic program was an intriguing attempt to reform the foundations of mathematics that eventually did not prevail. The current paper offers a new perspective on the scientific community’s lack of reception to Brouwer’s intuitionism by considering it in light of Michael Friedman’s model of parallel transitions in philosophy and science, specifically focusing on Friedman’s story of Einstein’s theory of relativity. Such a juxtaposition raises onto the surface the differences between Brouwer’s and Einstein’s stories and suggests that contrary to Einstein’s (...) story, the philosophical roots of Brouwer’s intuitionism cannot be traced to any previously established philosophical traditions. The paper concludes by showing how the intuitionistic inclinations of Hermann Weyl and Abraham Fraenkel serve as telling cases of how individuals are involved in setting in motion, adopting, and resisting framework transitions during periods of disagreement within a discipline. (shrink)

Friedman’s perspective on scientific change is a sophisticated attempt to combine Kantian transcendental philosophy and the Kuhnian historiographical model. In this article, I will argue that Friedman’s account, despite its virtues, fails to achieve the philosophical goals that it self-consciously sets, namely to unproblematically combine the revolutionary perspective of scientific development and the neo-Kantian philosophical framework. As I attempt to show, the impossibility of putting together these two aspects stems from the incompatibility between Friedman’s neo-Kantian conception of the role of (...) philosophy and the role of the notion of incommensurability, and the framework of transcendental idealism and the radical character of scientific revolutions. Hence, I suggest that pace Friedman and pace Kuhn’s own self-understanding, the Kuhnian theory of scientific revolutions cannot be seen as ‘Kantianism with moveable categories’ and consequently we should either abandon the notion of radical scientific revolution or place the Kuhnian account into another, non-Kantian philosophical framework. (shrink)