For example, in his first law, Kepler rejected Copernicus and the Ptolemaic Conception when stating that, “ …the orbits of the planets around the sun were not circular, but elliptical, with the sun at one focus of the ellipse rather than at the center.” According to the Ptolemaic Theory and Aristotle, the planets moved in the most perfect circular and uniform motion. However, Johannes Kepler argued that the planets do not orbit in circles, but in ellipses. His second law demonstrated that the speed of a planet is greater when closer to the sun and decreases the farther it is from it. Kepler’s third law establishes that the square of a planet's period of revolution is proportional to a cube of its average distance from the sun. In general, planets with larger orbits revolve at a slower rate. His last two laws demolish Aristotle’s concept of uniform motion, both laws recognized that the planets did not orbit at the same time in the same way. The foundation of the Ptolemaic System was contradicted. All in all, Johannes Kepler’s laws lead to the downfall of the Ptolemaic System due to his contradictory
For example, in his first law, Kepler rejected Copernicus and the Ptolemaic Conception when stating that, “ …the orbits of the planets around the sun were not circular, but elliptical, with the sun at one focus of the ellipse rather than at the center.” According to the Ptolemaic Theory and Aristotle, the planets moved in the most perfect circular and uniform motion. However, Johannes Kepler argued that the planets do not orbit in circles, but in ellipses. His second law demonstrated that the speed of a planet is greater when closer to the sun and decreases the farther it is from it. Kepler’s third law establishes that the square of a planet's period of revolution is proportional to a cube of its average distance from the sun. In general, planets with larger orbits revolve at a slower rate. His last two laws demolish Aristotle’s concept of uniform motion, both laws recognized that the planets did not orbit at the same time in the same way. The foundation of the Ptolemaic System was contradicted. All in all, Johannes Kepler’s laws lead to the downfall of the Ptolemaic System due to his contradictory