Comparing Ancient Models of the Universe
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Questions and Answers

What was the primary principle considered by Eudoxus in modeling the universe?

  • The shape of the Earth
  • The principle of 'Saving the Appearances' (correct)
  • The movement of the planets
  • The simplicity of the universe

    • How many homocentric spheres did Eudoxus propose in his model of the universe?

  • 25
  • 27 (correct)
  • 30
  • 20

    • What was the position of Earth in Eudoxus' model of the universe?

  • Moving in a circular path
  • In orbit around the Sun
  • At the center of the universe (correct)
  • At the edge of the universe

    • How many planets did Eudoxus consider in his model of the universe?

    <p>5</p> Signup and view all the answers

    What was the occupation of Eudoxus, who proposed a model of the universe?

    <p>A mathematician and astronomer</p> Signup and view all the answers

    What was the main consideration of Eudoxus in modeling the universe?

    <p>The principle of 'Saving the Appearances'</p> Signup and view all the answers

    What was a characteristic of the celestial motion in Eudoxus' model?

    <p>Uniform and circular motion</p> Signup and view all the answers

    How many spheres were present in Eudoxus' geocentric model?

    <p>27 homocentric spheres</p> Signup and view all the answers

    What is the relationship between the rotation of the spheres in Eudoxus' model?

    <p>Each sphere is attached at its poles to the previous sphere</p> Signup and view all the answers

    What is the apparent motion of celestial bodies in Eudoxus' model?

    <p>Irregular motion</p> Signup and view all the answers

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