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# The Discovery of Kepler

The Discovery of Kepler Using the precise data that Tycho had collected Kepler discovered that the orbit of Mars was an ellipse Man being as Kepler believed made in the image of God was clearly capable of understanding the Universe that He had created Moreover Kepler was convinced that God had made the Universe according to a mathematical plan The Sun is not at the center of the ellipse but is instead at one focus The planet then follows the ellipse in its orbit which means that the Earth-Sun distance is constantly changing as the planet goes around its orbit Kepler lived after Copernicus first asserted that Earth and the other planets revolved around the sun The first years of Keplers work were spent compiling numerical analysis of Tychos observations in the hopes of matching the results with Copernicuss theory of planetary motion Unhappily however Kepler found that his mathematical calculations were far from fitting the imprecisely figured Copernican model During many months of additional calculations he happened upon the most important of his discoveries that planetary orbits were elliptical not circular as he and those before him had believed Strongly convinced through his work that the planets did in fact orbit around the sun Kepler openly endorsed the Copernican theory that the earth and all other planets were in fact orbiting the sun Undoubtedly Keplers discoveries and intricate calculations were vital as a basis for Isaac Newtons later work For his bold assertions about orbits for his extensive observations and copious calculations and for his defense of the Copernicuss theory of the universe later astronomers and scientists especially Newtonwere indebted to Kepler He was the first to support Copernicus with substantial evidence and he consequently did much to help explain the great mystery of planetary orbits Kepler also made contributions in the field of optics and developed a system of infinitesimal in mathematics which was a forerunner of calculus The reason I think he

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