CopernicanModelPowerPointPresentation...

Copernican Model

1. NICOLAUS COPERNICUS ( copernican model)

2. Thought experiment

3. Copernicus's idea and model of the universe Copernicus was strongly influenced by a book entitled epitome published in 1496 by a german author, Johannes mueller . This book contains mueller's observations of the heavens and some commentary o earlier works especially that of ptolemy .

4. De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres) 4

5. In his book, he wanted a model of the universe in which everything moved around a single center at unvarying rates

6. Copernicus placed the Sun to be the centerpiece of the universe. Earth and all the planets are surrounding or orbiting the Sun each year.

7. The Moon, however, would still be seen orbiting the Earth. Copernicus’s model, of the Earth orbiting around the Sun automatically positioned planets into a logical sequence.

8. In his model, Copernicus outlined kinds of planetary motion: (1) the orbits of Venus and Mercury lay inside the orbit of the Earth, thus, closer to the Sun; 8

9. In his model, Copernicus outlined kinds of planetary motion : (2) the orbits of Mars, Saturn, and Jupiter lay outside the Earth's orbit, thus, farther from Sun. 9

10. From this model, he would work on the length of time it will for each planet to orbit once around the Sun.

11. The result would form a sequence from Mercury, with a shortest year , through Venus, Mars, Jupiter, And Saturn with the longest year . He placed the planets in order of increasing distance from the Sun 11

12. One of the great problems in the Copernicus model, however, was the position of the stars. The stars cannot be placed in a fixed position like crystals in a distance sphere. 12

13. Although the Copernican model makes sense now, during those times, it was judged to be heretic and therefore it was an unacceptable idea to be taught to Catholics. The Catholic Church banned the Copernican model and was ignored by Rome for the rest of the 16th century. 13

14. 14 GEOCENTRIC MODEL COPERNICAN MODEL

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