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Emilie du Chatelet was esteemed in 18th-century France as a brilliant physicist, mathematician, thinker and linguist whose pioneering ideas and formidable translations were known all across Europe. And yet, after her death in childbirth in her mid-40s she was nearly forgotten, and if she was remembered at all, then as a companion and collaborator of the famous writer Voltaire.

Du Chatelet鈥檚 insights into kinetic energy foreshadowed Einstein鈥檚 famous equation and her suggestions for experiments with the different colours of light would only be carried out half-a-century after she鈥檇 written about them. Plus she was a remarkable personality, determined to live a life of an independent woman, often pushing the boundaries of what was acceptable even in the liberal social circles of her day.

Bridget Kendall discusses du Chatelet鈥檚 life and work with history professor Judith Zinsser, Chatelet鈥檚 biographer David Bodanis and philosophy professor Ruth Hagengruber.

Painting: Gabrielle Emilie de Breteuil (1706 -1749), marchioness of Le Chatelet by Marianne Loir. (Photo by Raphael Gaillarde/Gamma-Rapho/Getty Images)