Science

Émilie du Châtelet

1706 to 1749, Paris, France

The Newton of France - who translated the <em>Principia</em>, defended energy as mv², glimpsed the infrared, and argued that physics needs philosophy and that the life of the mind should belong to women too.

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Lessons

The Newton of France

Émilie du Châtelet’s translation of and commentary on Newton’s Principia - still the standard French version - and what it means to translate a physics, not merely a text: to re-derive its mathematics in a new language,…

Energy: Why Force Goes as the Square

Du Châtelet’s championing of vis viva (living force, mass times velocity squared) against the Newtonians’ momentum (mass times velocity): the 's Gravesande clay-ball experiments, her argument in the Institutions , and t…

The Institutions de Physique: Physics Needs Philosophy

Du Châtelet’s Institutions de physique (1740) - written to teach her son, and in truth an original attempt to give Newtonian mechanics the metaphysical foundation Newton refused: Leibniz’s principle of sufficient reason…

The Nature of Fire

Du Châtelet’s 1737 essay for the Academy of Sciences prize on the nature of fire: written in secret, entered against Voltaire’s own entry, arguing that heat and light are distinct effects and anticipating what we would…

The Happiness of the Mind

Du Châtelet’s Discourse on Happiness : her defence of the love of study as the passion that most makes us happy and, for a woman shut out of every public career, the one road to freedom and dignity of mind - and her fig…

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