ellites orbiting the earth. The expectation that the mathematical laws of science are universal is very accepted in our time. This makes it difficult to imagine just how important Kepler’s observations and calculations actually were.Kepler's work put to rest any ideas that planets move in perfectly circular orbits, because nature has decided that the celestial bodies must show perfection in their movements. He also put to rest, in the scientific community, the ancient idea that there existed a complex motion of planets that somehow effects what we do. Although Kepler never knew why planets move by the empirical relationships that he explained in his three laws, he tried to find a cause of which these three laws applied. He stated, "I am much occupied with the investigation of physical causes. My aim in this is to show that the celestial machine is rather a clockwork." Kepler sensed that two bodies have a natural magnetic attraction to each other and guessed that the Sun had an attractive force. However, his theory carried on to Newton, half a century later, to formulate a theory of motion, which involved gravity as the cause of planetary motion.Without Kepler’s great observations and calculations, the world would be very different today. Many would go on thinking that the entire solar system orbited around the Earth, instead of the Sun. Due to the fact that Kepler spent his life trying to disprove this theory, our world is very much changed today. We now understand that the solar system orbits around the sun, and that the planets are attracted to this center because of the natural gravitational attraction between two bodies. His observations were very important to physicists and mathematicians alike. His calculations are still being used today, which shows exactly how accurate they were. His death in 1630 was a great loss to the science world, but his contributions will last forever. ...
