Podcast 2

Johannes Kepler was born with poor eyesight because he was premature about a month. He therefore became an astronomical theorist. He spent his early astronomical years by traveling to Tycho Brahe in order to use his data for mathematical theory. Kepler established his three laws where orbits are eliptical, planets sweep out equal distances in equal times, and that the period squared equals the distance cubed. These were absolutely revolutionary theories that fit with math that had been established. The deferents and epicycles were deemed obsolete and Kepler's elipse made the most sense. Thus Kepler gifted the astronomical world with mathematical observations and proof of planets orbits and predictability for planets.