Johannes Kepler

     Johannes Kepler, a German Astronomer and Mathematician played a big role in The Scientific Revolution due to all his contributions to the world of science. Johannes Kepler grew up in a poor family, but because of his intelligence he was able to get a scholarship to the University of Tübingen. While Kepler was there he studied Mathematics, and Astronomy. Although the Astronomy he was thought there revolved around the Geocentric theory, meaning that the Earth was at the center and everything else revolved around it. During this time most people believed in the Geocentric theory because, there was religion involved in science. He was also introduced to the Heliocentric cosmological system of Copernicus. This was a theory that the sun was at the center, and everything else revolved around it. Later Kepler discovered what today are known as The Three Laws of Planetary Motion. The first being The Law of Ellipses, which states that the planets move in elliptical orbits with the sun at its focus. The second one is the Law of Equal Areas, which states that a line between the sun and a planet sweeps equal areas in equal times. The third law is The Law of Harmonies, which compares the orbital time period and radius of an orbit of any planet, to those of other planets. These three laws is what Johannes Kepler is most notably known for.