Article ID: CBB008141627

How Physics Flew the Philosophers' Nest (2021)


We all know that, nowadays, physics and philosophy are housed in separate departments on university campuses. They are distinct disciplines with their own journals and conferences, and in general they are practiced by different people, using different tools and methods. We also know that this was not always the case: up until the early 17th century (at least), physics was a part of philosophy. So what happened? And what philosophical lessons should we take away? We argue that the split took place long after Newton's Principia (rather than before, as many standard accounts would have it), and offer a new account of the philosophical reasons that drove the separation. We argue that one particular problem, dating back to Descartes and persisting long into the 18th century, played a pivotal role. The failure to solve it, despite repeated efforts, precipitates a profound change in the relationship between physics and philosophy. The culprit is the problem of collisions. Innocuous though it may seem, this problem becomes the bellwether of deeper issues concerning the nature and properties of bodies in general. The failure to successfully address the problem led to a reconceptualization of the goals and subject-matter of physics, a change in the relationship between physics and mechanics, and a shift in who had authority over the most fundamental issues in physics.

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Authors & Contributors
Janiak, Andrew
Schmit, Christophe
Bascelli, Tiziana
Bertoloni Meli, Domenico
Bloem, Annelies
Boudri, J. Christiaan
Archive for History of Exact Sciences
Studies in History and Philosophy of Science
Centaurus: International Magazine of the History of Mathematics, Science, and Technology
Early Science and Medicine: A Journal for the Study of Science, Technology and Medicine in the Pre-modern Period
Journal of the History of Ideas
Monist: An International Quarterly Journal of General Philosophical Inquiry
Cambridge University Press
Kluwer Academic
Motion (physical)
Natural laws
Philosophy of science
Newton, Isaac
Descartes, René
Galilei, Galileo
Leibniz, Gottfried Wilhelm von
Varignon, Pierre
Hertz, Heinrich Rudolph
Time Periods
17th century
18th century
16th century
19th century

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