Jean Le Rond d'Alembert was a French mathematician, physicist, philosopher, and music theorist. Until 1759 he was, together with Denis Diderot, a co-editor of the Encyclopédie.
Pastel portrait of d'Alembert by Maurice Quentin de La Tour, 1753
Nouvelles expériences sur la résistance des fluides
Portrait of Jean Le Rond d'Alembert, 1777, by Catherine Lusurier.
Front page of a 1758 copy of Traité de dynamique
The Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers, better known as the Encyclopédie, was a general encyclopedia published in France between 1751 and 1772, with later sup
Jean Le Rond d'Alembert
…October 1783) was a French mathematician, physicist, philosopher, and music theorist. Until 1759 he was, together with Denis Diderot, a co-editor of the Encyclopédie. His most famous achievements include the wave equation, also known as d'Alembert's equation, and D'Alembert's formula for solving said equation. In…
Extract from the frontispiece of the Encyclopédie (1772). It was drawn by Charles-Nicolas Cochin and engraved by Bonaventure-Louis Prévost. The work is laden with symbolism: The figure in the center represents Truth, surrounded by bright light (the central symbol of the Enlightenment). Two other figures on the right, Reason and Philosophy, are tearing the veil from Truth.
Fig. 3: "Figurative system of human knowledge", the structure that the Encyclopédie organized knowledge into. It had three main branches: memory, reason, and imagination.