Ovidiu Babeș has won the Du Châtelet Prize in Philosophy of Physics 2022 for his paper “Mixed Mathematics and Metaphysical Physics: Descartes and the Mechanics of the Flow of Water”. Ovidiu’s paper investigates the complex interplay between physics and mechanics in Descartes’ quantitative explanation of the flow of water, showing the creativity in Descartes’s attempts to bridge the mechanical and the physical, and the difficulties that ensue for his natural philosophy.