Ptolemaic Cosmology

For 2,000 years prior to Copernicus, astronomers believed that the Earth was at the center of a cosmos, surrounded by a series of celestial spheres. John Hamer of Toronto Centre Place will outline how the Ptolemaic system worked (and did not work), why it proved so durable, and why the Catholic Church remained invested in the system even after scientists like Galileo began to argue in favor of heliocentrism.

A Q&A and discussion will follow the presentation. Please send your questions on the live chat.

Lecture topics include:

Heliocentric model, Heliocentrism,
Geocentric model, Geocentrism, Ptolemaic system,
Flat Earth,
Nicolaus Copernicus,
Galileo Galilei,
Religion and science


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