Émilie du Châtelet

Gabrielle Émilie Le Tonnelier de Breteuil, marquise du Châtelet (Known as "The French Light of Newtonian Mechanics")

Mathematician, Physicist, Translator of Newton's Principia, Energy Theorist

Born 17 December 1706

Paris, France

Passed Away 10 September 1749 Lunéville (Lorraine), France

Lifespan 42 years old

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Notice / Correction

"Judge me for my own merits, or lack of them, but do not look upon me as a mere appendage to this or that great man. I am in my own right a whole person."

Archival Overview

French Enlightenment mathematician and physicist whose translation and commentary on Newton's Principia remains the standard French text, and who proved that kinetic energy is proportional to mv².

Biographical Record

Gabrielle Émilie, Marquise du Châtelet (1706–1749), mastered Latin, Greek, mathematics, and philosophy from childhood. Transforming her château at Cirey-sur-Blaise into an advanced scientific salon with her collaborator Voltaire, she conducted cutting-edge research in natural philosophy.

Her definitive French translation and extensive mathematical commentary on Isaac Newton's Principia Mathematica remains the authoritative French edition to this day. Crucially advancing physics, she dropped lead spheres into clay beds to prove Gravesande's experiments: that kinetic energy (*vis viva*) is proportional to mass times velocity squared ($E_k propto mv^2$), directly anticipating the modern conservation of kinetic energy.

Key Life Milestones

1740 CE

Publication of 'Institutions de Physique'

Synthesized Newtonian mechanics with Leibnizian metaphysics, proving kinetic energy is proportional to velocity squared.

1749 CE

Completion of the French Translation of Newton's 'Principia'

Completed the monumental translation and mathematical commentary establishing Newtonian physics in continental Europe.

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Final Resting Place

Perpetual Memorial

Church of Saint-Jacques (Lunéville, Du Châtelet Tomb)
Lunéville (Meurthe-et-Moselle), France

                         GPS: 48.5911, 6.4914                    

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