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Nicolaus Copernicus

Nicolaus Copernicus. Astro Chapter 3-2. For nearly 2000 years, civilization and astronomy was dominated by the Aristotle and Ptolemaic model of the universe. Those views began to change with Nicolaus Copernicus’ model.

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Nicolaus Copernicus

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  1. Nicolaus Copernicus Astro Chapter 3-2

  2. For nearly 2000 years, civilization and astronomy was dominated by the Aristotle and Ptolemaic model of the universe.

  3. Those views began to change with Nicolaus Copernicus’ model.

  4. He was raised in the Roman Catholic Church, and feared persecution and heresy. • He was interested in astronomy and science from a young age.

  5. Astronomy of the time was based on Ptolemy’s model of Aristotle’s universe. • The Copernican model was heliocentric  sun centered.

  6. In his book On the Revolutions of Celestial Spheres, published after his death in 1543, Copernicus outlined his argument that the sun, not the Earth was the center of the universe.

  7. His model explained the retrograde motion of some planets from Earth’s perspective. This was because the Earth orbits the sun faster than some planets and slower than others.

  8. Copernicus still believed in the theory of uniform circular motion, like Aristotle, even though he recognized it did not precisely describe planetary motion.

  9. Never-the-less, Copernicus hypothesis that the “universe” (known at the time) was heliocentric was correct. • Even though it was different from what we now know to be correct.

  10. The Copernican Revolution was a gradual recognition that the Earth was not the center of the universe. • It changed the paradigm scientists used. • Paradigm – a set of scientific ideas and assumptions

  11. This “revolution” has helped change our views of our place in the universe, by making us not necessarily the most important part of it, and helping humanity realize that we are a part of the universe, but not the biggest part.

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