Even starting with this incorrect theory he was able

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Unformatted text preview: of thinking. This is a critical legacy for all the scientists who followed after him. Ptolemy Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory. Even starting with this incorrect theory, he was able to combine what he saw of the stars' movements with mathematics, especially geometry, to predict the movements of the planets. His famous work was called the Almagesti. In order to make his predictions true, he worked out that the planets must move in epicycles, smaller circles, and the Earth itself moved along an equant. None of this was true, but it made the math work for his predictions. This flawed view of the Universe was accepted for many centuries. Copernicus Well over a thousand years later, Nicolaus Copernicus came up with a radical way of looking at the Universe. His helioc...
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This note was uploaded on 04/17/2012 for the course EDT 181 taught by Professor Keithstevenharring during the Fall '08 term at Miami University.

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