Ptolemy and Copernicus' ideas about the universe are different from each other in the sense that Ptolemy thought that every celestial object as well as the sun and the moon orbited the Earth whereas Copernicus had the thought that all planets orbited the Sun, while the Moon orbited the Earth.
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Copernicus's idea was different to ptolmeny's idea because they are two different things.
the difference is the sun is in the middle for the copernican system and the earth is in the middle for the ptolemy system.
Ptolemy had the earth at the center of everything in the visible universe. Copernicus placed the sun in the center.
Nicholas Copernicus did
aristotle and nicolaus copernicus
Copernicus and Galileo were two major figures whose ideas contradicted Ptolemy's geocentric model. Copernicus proposed a heliocentric model with the Sun at the center of the solar system, while Galileo used observations through a telescope to support this view and challenge Ptolemaic beliefs.
One of the most notable figures who developed ideas contradicting Ptolemy's geocentric model of the universe was Copernicus, who proposed a heliocentric model with the Sun at the center. Copernicus's work laid the foundation for later scientific revolutions in astronomy led by Galileo, Kepler, and others.
Scientists such as Nicolaus Copernicus and Galileo Galilei developed ideas that contradicted Ptolemy's geocentric model of the universe. Copernicus proposed a heliocentric model with the sun at the center, while Galileo's observations through a telescope supported this idea, leading to the eventual acceptance of the heliocentric model.