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Ptolemy considered the solar system (and the universe) to be a set of crystal concentric spheres rotating around the stationary Earth at its centre.
On the closest sphere was the moon, then Venus and so on out to the stars on the outer sphere. At the time they didn't have any idea how incredibly big everything is.
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∙ 14y ago
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What was ptolemys biggest discovery?
his model of the universe.
Who contradicted Ptolemys geocentric model?
Nicholas Copernicus
What was foundation of Ptolemys geocentric model of the universe?
Earth was the center of the universe
Who developed ideas that contradicted Ptolemys geocentric model of the universe?
Copernicus and Galileo
Why did the existence of stellar parallax not convince people in Copernicus time that his model was better than Ptolemys geopcentric model?
Stellar parallax could not be observed until hundreds of years after Copernicus: the effect is very small. Rejection of the Copernican system was not irrational.
What was ptolemys biggest discovery?
his model of the universe.
Who contradicted Ptolemys geocentric model?
Nicholas Copernicus
What was foundation of Ptolemys geocentric model of the universe?
Earth was the center of the universe
Who developed ideas that contradicted Ptolemys geocentric model of the universe?
Copernicus and Galileo
Who was ptolemys?
Cleopatra
How was ptolemys model different from the earlier Greeks model?
Ptolemy's model is different from the earlier Greek model because Ptolemy developed a compllex geocentric model of the universe and his model seemed to explain motions until the 1500s.The early Greek astronomers believed that Earth was the center of the universe.
How was ptolemys model different from the earlier greek model?
Ptolemy's model is different from the earlier Greek model because Ptolemy developed a compllex geocentric model of the universe and his model seemed to explain motions until the 1500s.The early Greek astronomers believed that Earth was the center of the universe.
Who was ptolemys wife?
you are a ideot dumb one
Why did the existence of stellar parallax not convince people in Copernicus time that his model was better than Ptolemys geopcentric model?
Stellar parallax could not be observed until hundreds of years after Copernicus: the effect is very small. Rejection of the Copernican system was not irrational.
What was ptolemys evidence for his space theory?
Ptolemy put the Earth at the center of his model of the universe , and said that the Sun , the moons , the planets ,the asteroids , comets , and meteors orbit the Earth and the Earth was the center of the universe.
In the late 1500s ptolemys observations were supplanted by those of...?
later Greek astronomers
How was Copernicus model of the universe different from ptolemys model?
Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the moon.No. The above answer is incorrect.Copernicus's model thought that the planets orbited the sun. Ptolemy's model thought that the planets orbited the EARTH in epicycles. Not the moon. (The model that modeled the planets orbiting earth was the Geocentric model. Aristotle theorized this.)Copernicus's model is known as the Heliocentric model. Ptolemy's theory of epicycles is when the planets revolved in large circles around Earth.
