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ALEMBERT, Jean Le Rond d’. Traité de Dynamique. 

Paris, s.n., 1743.

4to (209x152 mm), (4)-xxvi-(2)-186-(2) pages anf 4 folding plates.  binding : Contemporary full sheep, spine gilt in six compartments. Binding rubbed with some careful repairs. Browned paper. 

First edition.
Landmark work in the history of mechanics.
In this work Alembert state that the internal forces of inertia must be equal and opposite to the forces tha tproduce acceleration. Knwn today as 'd'Alembert principle'.

references: En Français dans le Texte [147], Norman [32 : "In the Traité de dynamique, Alembert made a significant contribution to the mathematical formalizing of Newtonian mechanics. In the first part of the treatise Alembert developed is own three laws of motion : inertia, the parallelogram of motion, and equilibrium; his third law assumed the conservation of momentum, and defined mass accordingly. The second part contains the first statement of what is now known as "Alembert's principle": that the internal forces of inertia must be equal and opposite to the forces of inertia must be equal and oppposite to the forces that produce acceleration"], PMM [195 : "Alembert first major work and a landmark in the history of mechanics"].

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