Geocentric vs Heliocentric Models

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What is the Geocentric model?

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The Geocentric model is an astronomical theory that places Earth at the center of the universe, with all other celestial bodies, including the Sun, orbiting around it.

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What is the Heliocentric model?

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The Heliocentric model is an astronomical theory that places the Sun at the center of the solar system, with Earth and other planets orbiting around it.

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Who proposed the Heliocentric model?

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Nicolaus Copernicus proposed the Heliocentric model.

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Who proposed the Geocentric model?

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Aristotle proposed the Geocentric model.

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What is the main difference between the Geocentric and Heliocentric models?

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The main difference is the center of the solar system: the Geocentric model centers on Earth, while the Heliocentric model centers on the Sun.

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Which model is widely accepted today?

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The Heliocentric model is widely accepted today.

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What did Galileo contribute to the Heliocentric model?

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Galileo provided observational evidence supporting the Heliocentric model, including the phases of Venus and the moons of Jupiter.

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What is an orbit?

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An orbit is the curved path that an object takes around a star, planet, or moon due to gravitational forces.

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What role does gravity play in the Heliocentric model?

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Gravity is the force that keeps planets in orbit around the Sun in the Heliocentric model.

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What is retrograde motion?

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Retrograde motion is the apparent backward movement of a planet as observed from Earth, which was a key observation in the debate between the Geocentric and Heliocentric models.