Hypatia - 4th Century Woman Astronomer

Hypatia - 4th Century Woman Astronomer

The death of Hypatia, and the loss of the world's largest collection of scientific and mathematic writings, were factors that contributed to the halt of scientific advances in the West halt for nearly a thousand years.

The new movie Agora chronicles the life, challenges and death of Hypatia, a 4th Century woman astronomer whose contribution influenced and shaped modern science and our understanding of the world and the universe. Mabel Armstrong, author of the award-winning book Women Astronomers: Reaching for the Stars, tells Hypatia's story with the joy that a great science teacher (which she was) can bring to an old subject.

When Hypatia was born, her father, Theon, was a professor of mathematics and astronomy in Alexandria. He believed, as many Greeks did, that it was possible to raise a perfect human being. So he gave his daughter the best possible education, including studies in mathematics, languages, rhetoric, and natural philosophy-or science.

Upper-class women of the time were usually secluded, expected to devote themselves solely to their husband and children, but Hypatia found a job at the most famous institution in the ancient world, the library at Alexandria. She taught mathematics, physics, and astronomy, and wrote many books about these subjects-thirteen books on algebra, her favorite subject, and another eight books on geometry.

She also designed an astrolabe, an instrument used to measure the positions of the stars, another important tool for sailors, which let them locate specific stars and use the stars' positions for navigation. She used her astrolabe to calculate the positions of specific stars, and then published her data in tables. Sailors and astronomers used her tables of positions of the stars, Astronomical Canon, for the next 1200 years.

In her classes and public lectures, Hypatia exhorted people to think critically. "Reserve your right to think," she said. "For even to think wrongly is better than not to think at all."