Kepler was born on December 27, 1571 (Bellis, March 5, 2014). He was a very sickly child and his parents were very poor. At a young age Johannes suffered from smallpox, crippled hands, and eyesight permanently weakened (famousscientist.org). There was no information found on the severity of his eyesight. His illnesses and eyesight deficiency does propose a question of what if he was living today with our new and advanced technology with eyeglasses, medication, and surgery. What more, he also suffered from the lost his father at the age of four and his mother being accused of witchcraft. He was able to attend school even with these circumstances. He was from the Protestant state of Vertenburg , southern Germany, which provided three years of free education (Johannes Kepler's law of Planetary Motion). It was then found out by his professors that he was a bright student. He was sent to Tuebingen on scholarships where he studied philosophy under Vitus Muller and theology with Jacob Heerbrand (Famous Scientist).
German astronomer Johannes Kepler used mathematics to calculate the path of the planets, finding that they traveled not in circles, as long expected, but in ellipses. In 1596, Kepler wrote his first public statement on his reasons that the Copernican system is correct. This was a dangerous stance, given that in 1539, Martin Luther, founder of the Lutheran church, derided the theory when he first heard it (Famous Scientist).
Kepler would have not been as successful without Brahe’s data. There is a rumor that Kepler poisoned Brahe in order to get his data, however, this theory is not proven. While Copernicus and Galileo often receive the credit in the popular imagination, it was Johannes Kepler (1571-1630) who discovered and demonstrated that the Earth orbits the Sun (Keplers Discovery). In his 1609 work, Astronomia Nova ("The New Astronomy"), Kepler demolished the Aristotelian cosmography of perfect forms and unknowable causes, which has forever changed man’s sense of his place in the Universe, helped launch the scientific revolution and also identified problems which would motivate the development of calculus (Kepler Discovery). Johannes Kepler is a German astronomer who explained the planetary orbits, discovered light’s inverse square law, and wrote the first book on optics (Hudon D, 2009). All of his contributions were helpful; however, I am going to explain in depth about his third law of planetary motion and how it helped future astronomers and us today.
Kepler’s main contribution was the three laws of planetary motion. His laws not only apply to planets, but they apply to all objects that orbit in space. Keplers third law, law of harmonies, compares the orbital period and radius of orbit of a planet to those of other planets (Kepler’s Three Laws). His law provides an accurate description of the period and distance of planets orbiting about the sun. It is...