du Chatelet - European Philosophy and Mathematics - Emilie du Chatelet
Welcome to Quatr.us Study Guides!

du Chatelet

Emilie du Chatelet
du Chatelet

Emilie du Chatelet's rich father, who was interested in literature and science, hired tutors to homeschool her, instead of sending her to a convent school. She learned Latin, German, Greek, and Italian, as well as math and science.

When du Chatelet was 18, she married an older and richer man, and they soon had three children, though the youngest died when he was a baby. After the kids were born, in 1733, du Chatelet started working on math again, learning algebra and calculus. Around this time, she also became the philosopher Voltaire's girlfriend.

Voltaire had just come back to France from England, where he had learned about Issac Newton's work in physics, and about Locke's work in philosophy. Like Astell a little earlier, du Chatelet criticized Locke's ideas. Locke had said that scientists should start from their observations, but du Chatelet argued that scientists should work to understand underlying principles and laws, like Newton's Laws of Motion, to get at the truth.

Also like Astell, du Chatelet pointed out that the reason women didn't make scientific discoveries or write great plays was not that women were stupider than men, but that they didn't get to go to school. She suggested that the King, Louis XIV, could make his country much richer by educating women instead of wasting their brains on flirting and clothes.

Du Chatelet proposed an experiment to show whether different colors of light carried more or less heat. She suggested using a glass prism to create a rainbow, and then placing thermometers to measure the heat of each color of light separately. This would have worked to show that longer wavelengths of light - like red - do warm things up more than shorter wavelengths - like blue. But du Chatelet never did her experiment.

A little later on, du Chatelet proved that the energy of a moving object is not proportional to its velocity, as Newton and Voltaire had thought, but to the square of its velocity. Du Chatelet translated Newton's work from Latin to French, and wrote a valuable commentary on it. She also wrote about what happiness was. She suggested that one path to happiness was through being famous, and that for women, who couldn't fight in battle, the best way to get famous was scientific discoveries.

Then when du Chatelet was 42 years old, she had another baby with another boyfriend. It was very risky to have a baby at that age, and she died a week after the baby was born. A few months later, the baby died too.

Learn by doing - du Chatelet's experiment with light

Bibliography and further reading about Emilie du Chatelet:

European Women
Louis XV France
Modern Europe
Quatr.us home

LIMITED TIME OFFER FOR TEACHERS: Using this article with your class? Show us your class page where you're using this article, and we'll send you a free subscription so all your students can use Quatr.us Study Guides with no distractions! (Not a teacher? Paid subscriptions are also available for just $16/year!)
Please help other teachers and students find us: link to this page from your class page.
Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram or Twitter, or buy her book, Vandals to Visigoths.
Cite this page
  • Author: K.E. Carr
  • Title:
  • Site Name: Quatr.us Study Guides
  • Publisher: Quatr.us
  • Date Published:
Did you find what you needed? Ask your teacher to link to this page so other people can use it too! Send it in and win a Quatr.us "Great Page!" award!
Sign up for more free articles and special offers in Quatr.us' weekly newsletter:
We will never share your e-mail address unless you allow us to do so. View our privacy policy. Easy unsubscribe links are provided in every email.
Comment on This Article

Does your class page honor diversity, celebrate feminism, and support people of color, LBGTQ people, and people with disabilities? Let us know, and we'll send you a Diversity Banner you can proudly display!
Looking for more?
Quatr.us is loading comments...
(Comments will appear after moderation, if they are kind and helpful. Feel free to ask questions, and we'll try to answer them.)
Cite this page
  • Carr, K.E. . Quatr.us Study Guides, . Web. 28 April, 2017