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Scientists throughout History: Kinetic Energy and Émilie du Châtelet Rebecca Wenning
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Part I Historical background
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Sir Isaac Newton 1642-1727 Discourse on vis viva (today known as energy) Newton believed: –E mv Dutch scientist performed experiments with metal cylinders and lard: –E v 2 Who was correct?
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Émilie du Châtelet 1706-1749: Only recently recognized by French National Library on her 300th birthday
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Émilie du Châtelet Fortunately for her, Émilie’s husband, 15 years older, disinterested in science and always away soldiering, allowed Émilie her “boyish” ways with books and studying.
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In the Meanwhile… “In the year 1733 I met a young lady who happened to think nearly as I did.” “Everything about her is noble, her countenance, her tastes…her politeness.”
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François Marie Arouet “Voltaire” 1694-1778 Interested in science Studied Isaac Newton –Familiar with visa viva
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Cirey From 1734 until Émilie’s death in 1734, she and Voltaire lived together as friends (with the approval of her husband). Worked hard Partied hard Worked hard Partied hard
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Exile Voltaire angered French government with his political writings Fled to Holland from political persecution –Saw work of Dutch scientist
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The Experiment Following Voltaire’s trip to Holland, Voltaire explains to Émilie the energy experiment he saw. She is already busy: –Mathematical, philosophical, and religious papers –Paper on nature of fire (would have won competition had she not been a woman) –Paper on color (discovered infrared radiation) –First translation of Newton’s Principia
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Dutch Experiment Kinetic energy seems to have something to do with m and v. Newton: KE mv Dutch: …but KE v 2 WHO IS RIGHT?
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Part II Experimentation
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Dutch Experiment KE (# drops) KE (# drops) Mass Velocity
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Close of an Epoch Émilie performs the experiment and determines that E=mv 2, not E=mv. At 42, she becomes pregnant, but becomes ill with an infection and died before giving birth. “I have lost…half of myself, a soul for which my soul seems to have been made.” ~Voltaire
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Improvements Sir Thomas Young performed the same experiment as that of the Dutch scientist and Émilie. Changed vis viva to be called “energy” Determined final form of the equation: KE=(1/2)mv 2
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Issues to Consider I Who got credit for KE equation? Who should have gotten it? In which instances of life was Émilie oppressed as a woman scientist? Who were the people and what were the contexts under which she was oppressed?
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Issues to Consider II Beyond “fairness” issues, what are the negative consequences of oppression of any minority group in science? Have you ever felt oppressed in science? When? Why?
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Issues to Consider III According to S & E statistics, is there still likely oppression of women? What are some of the institutions and contexts under which women are oppressed? Are there any other minority groups in S & E that are oppressed?
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Issues to Consider IV What are the solutions to oppression of minorities (females, in particular) in S & E? Are solutions actually needed? Maybe fewer women want S & E careers -- should there be 50-50 percentage rates?
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