Title : Teach Astronomy - Kepler Duration : 01:13 Posted : 22 May 2016 - 03:05
Teach Astronomy - Kepler
http://www.teachastronomy.com/ Johannes Kepler inherited Tycho Brahe's meticulous observations and as a skilled mathematician knew exactly what to do with them. After eight years and thousands of pages of analysis he reluctantly concluded that the planets could not be explained with circular orbits but only by elliptical orbits. It was a reluctant conclusion because Kepler was in awe of the Greeks and was well aware that the sphere and the circle were the most perfect figures. However, he listened to what the data was saying to him, and he came up with the idea of elliptical orbits within the solar system. He also deduced the three fundamental laws of planetary motion. He even added the idea of a force that could somehow operate invisibly across the range of space that somehow bound the planets to the sun. Kepler was a mystic, and many of his writings do not sound scientific to a modern ear. But his work in making a decisive break with the circular orbits and the perfect spheres of the Greeks amounted to a second stage in the Copernican revolution.
Post a Comment