Abstract
Previous chapter The 18th century witnessed important changes in ontology and epistemology that greatly matter to rhythmology. Like all their contemporaries, Spinoza and Leibniz had reflected from the queen sciences of their age: physics and astronomy, backed by mathematics, especially arithmetic, calculus and geometry. Diderot in turn took advantage of the considerable progress in certain experimental and observation sciences: chemistry, natural history, medicine, and some research - Sur le concept de rythme – Nouvel article