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Don't get mad at him for being unsmart like everyone does. He placed the earth at the center of the celestial sphere contains 1025 fixed stars and 7 wanderers. His mathematical model is the most accurate model before Kepler. Everyone says that he used 80 or some huge number of epicycle to be accurate. No, he used 6 epicycles, 2 crank mechanisms, 6 eccenters, and 5? Equants. To compare with other, less accurate methods, Aristotle lovely homeocentric sphere had 34 or 45 components, and copernicus also used 34 rotating spheres. Some people, however thought that the eccenter and Equant violated Plato's idea of uniform circular motion, since this meant motion was not even, and not centered on the earth or a deferent. Al-Tusi, Al-Urdi and Ibn-Ash-Shatir made models based on the almagest which replaced the eccenter and Equant with epicycle, these models are also accurate, but do not comply with a physical model. One other thing is that no matter what you do with ptolemy's model, it is still geometrical, for the purpose of Astrology, and not a physical model. I spent an hour decoding the Equant, eccenter and epicycle into algebra, no matter what you do with the model, the calculating is hard.
What else can I help you with?
What was Ptolemy's idea on space?
that the earth was in the middle of the universe
Who is claudius ptolemy?
Ptolemy believes that the earth is the center of the universe.
Did Ptolemy think the earth was flat?
No, Ptolemy did not believe the Earth was flat. In his work "Almagest," he presented a geocentric model where the Earth is a sphere at the center of the universe, surrounded by celestial bodies. This spherical view of the Earth was consistent with the prevailing understanding of his time and was influential in shaping later astronomical thought.
What did Ptolemy believe about earth?
that the earth was in the middle of the universe
What did ptolemy to?
He is an mathamican, geoglogly, and wrote many books about the earth......he was know as claudias ptolemy....
Who invented Geocentric?
Aristotle first thought that the Earth was the center of the solar system. Ptolemy was the second one to think of the theory.
What did Ptolemy think of the solar system?
Ask not what Ptolemy thinks of his solar system, but what his solar system thinks of Ptolemy.
Who was the astronomer who proposed that Earth was the center of the universe?
The idea that the Earth was the center of the universe was adopted because of the writings of Ptolemy and Aristotle. This was a common belief until the 1700s.
What did Ptolemy think about the phases of Venus'?
Ptolemy believed that Venus, like other planets in his geocentric model of the universe, exhibited phases due to its position relative to the Earth and the Sun. He thought that the varying shapes of Venus as seen from Earth were caused by the changing angles between the three celestial bodies.
Why did the people think that the Earth was flat 2000 years ago?
They actually didn't. Flat Earth is a myth. The spherical Earth has been a scientifically established fact since long before Ptolemy.
What did Ptolemy's claim was at the center of the universe?
earth
What is the ptolemy theory?
i think he was tring to figure out how the universe was shaped. he probably thought the earth was in the middle of everything because we could see the sun and the moon from earth, but the other planets only at certin points each year
