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How does a geocentric model explain the apparent motion of the stars?
All the stars are fixed to a sphere, which rotates once in 24 hours.
In the geocentric model the motion of the sun was what'?
It was in orbit around the earth.
Who created the first model of planetary motion?
Ptolemy created the Geocentric model in 2AD
What model did Ptolemy propose?
He proposed the Geocentric model of the universe. In that model, the Earth was at the center and all planets orbited it. This was naturally inferred from the apparent motion of the Sun and stars as the Earth rotates.
In the geocentric model the earth at the center of the universe which motion would occur?
The earth would revolve around the sun.
What was the purpose of the epicycle in the Ptolemaic model?
Epicycles helped account for the apparent motion of the other planets in the geocentric model.
What are the contributions of Eudoxus in geocentric theory?
He created a model for the universe that explained retrograde motion if Earth was at the centre.
How does a geocentric model explain the apparent motion of the stars?
All the stars are fixed to a sphere, which rotates once in 24 hours.
In the geocentric model the motion of the sun was what'?
It was in orbit around the earth.
Who created the first model of planetary motion?
Ptolemy created the Geocentric model in 2AD
Who came up with geocentric system?
No one in particular came up with the geocentric model, which says that the earth is the center of the universe, with everything else orbiting around it. Apparent motion of the sun, moon, and stars seems to be explained by this. Many ancient civilizations believed this because it's just the intuitive way of interpreting what you see. We now know, of course, that the heliocentric model is the correct one, thanks to early scientists like Copernicus, Kepler, and Galileo, who took on popular notion (and the church!) in their quest for truth.
What model did Ptolemy propose?
He proposed the Geocentric model of the universe. In that model, the Earth was at the center and all planets orbited it. This was naturally inferred from the apparent motion of the Sun and stars as the Earth rotates.
What geocentric model of the earth is?
There is no geocentric model of the earth!
What scientific model had to be developed before brownian motion could be explained?
The Particle model
How did Ptolemy prove his model?
Galileo explained the backwatds motion of the planets
In the geocentric model the earth at the center of the universe which motion would occur?
The earth would revolve around the sun.
What are Six early ideas about planetary motion?
Eccentricity, geocentric model, heliocentric model, Kepler's second and third laws, elliptical orbits, and Newtons gravitation
