Women in Science

Sofia Kovaleveskaya – Mathematician and Writer

Sofia Kovaleveskaya – Mathematician and Writer

On January 15, 1850, Russian mathematician Sofia Kovalevskaya was born. Kovalevskaya was responsible for important original contributions to analysis, partial differential equations and mechanics, and the first woman appointed to a full professorship in Northern Europe. “Say what you know, do what you must, come what may.” — Sofia Kovaleveskaya, Motto on her paper “On the Problem of the Rotation of a Solid Body about a Fixed Point.” (1886) EarlyYears Sofia Kovalevskaya was…
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Anne Anastasi and Psychological Testing

Anne Anastasi and Psychological Testing

On December 19, 1908, American psychologist Anne Anastasi was born. She is best known for her pioneering development of psychometrics. Her seminal work, Psychological Testing, remains a classic text in which she drew attention to the individual being tested and therefore to the responsibilities of the testers. She called for them to go beyond test scores, to search the assessed individuals’ history to help them to better understand their own results and…
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Henrietta Swan Leavitt and the Light of the Cepheids

Henrietta Swan Leavitt and the Light of the Cepheids

On July 4, 1868, American astronomer Henrietta Swan Leavitt was born. She is best known for her discovery of the relation between the luminosity and the period of Cepheid variable stars. Based on her luminosity-period relation for Cepheids, Edwin Hubble was able to determine that the universe is expanding. Henrietta Swan Leavitt was born in Lancaster, Massachusetts, as daughter among seven children of Congregational church minister George Roswell Leavitt and his wife…
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Mary the Jewess and the Origins of Chemistry

Mary the Jewess and the Origins of Chemistry

Mary the Jewess (also known as Maria Prophetissima or Miriam the Prophetess) is a figure who first appeared in the works of the Gnostic Christian writer Zosimos of Panopolis, whose sources for this are not clear. On the basis of Zosimos’s comments, she lived between the first and third centuries A.D. She is credited with the invention of several kinds of chemical apparatus and is considered to be the first true alchemist of the…
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