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Ptolemy said the Earth is the center of the universe, everything revolves around it once a day. Copernicus said the Sun is the center of our galaxy, and there are other galaxies that just wander around the universe.
Ptolemy's view of the universe placed the sun, the other solar system planets, and the stars inside a huge rotating sphere centered a point in space close to the earth.
Nicolaus Copernicus disagreed with his theory, Copernicus belived that Ptolemy's view was to complicated.
Ptolemy's view of the universe is that all celestial objects, including planets, stars, the Sun and the Moon orbit the Earth.
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
Ptolemy
Ptolemy said the Earth is the center of the universe, everything revolves around it once a day. Copernicus said the Sun is the center of our galaxy, and there are other galaxies that just wander around the universe.
Ptolemy's view of the universe placed the sun, the other solar system planets, and the stars inside a huge rotating sphere centered a point in space close to the earth.
Nicolaus Copernicus disagreed with his theory, Copernicus belived that Ptolemy's view was to complicated.
Ptolemy placed the earth as stationary at the center of the universe. Aristarchus placed the sun at the center with earth rotating around it.
Ptolemy's view of the universe is that all celestial objects, including planets, stars, the Sun and the Moon orbit the Earth.
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
Great question: Ptolemy believed that Earth was the center of the universe and that everything revolved around it. He believed that the stars were lights attached to a crystal sphere that spun around the Earth. He thought that the planets traveled on spheres of their own. To account for the more subtle motions, Ptolemy believed that each planet also moved on a smaller sphere - an epicycle. Ptolemy's view of the universe was thought to be valid and current for 1,500 years, until in 1547 Nicolaus Copernicus created the first theory for a heliocentric universe. THAT changed EVERYTHING!!
he thought the earth revolved around the sun. every one else thought it was the other way round.
The view that the earth is the center of the universe.