History of Astornomy Part 3: Copernicus and Heliocentrism

The video explores the transition from the geocentric model, perfected by Ptolemy, to the heliocentric model proposed by Copernicus. It explains how Copernicus resolved issues with the geocentric model by placing the Sun at the center of the solar system, leading to a better understanding of planetary motion. The concept of parallax is introduced to measure star distances, reinforcing the heliocentric model. The video also discusses the cultural impact of the Copernican Revolution, highlighting the philosophical shift and its challenge to the Catholic Church's authority.

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