Essay about HIstory of Astronomy and Neptune

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     Science is and has become a necessity to know just to keep up with the tremendous advancements of today and tomorrow. Basic things, such as how the universe was suspected to be started or who Ptolemy and Galileo were and what they did are just things that need to be known to fully understand what is happening in the world around you. These things are what you need to know, if you’re a scientists, to a grocery shop bagger.
     Ptolemy was a Greek man who became the man to set the future for astronomy. He was the third of the Alexandrian men, this group of scientists and mathematicians taught Alexander and his generals themselves. Living around 150 A.D., and being one of the
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He published them anyway and were handed to him the day he died. He died in Fraurenburg on May 24, 1543.
     Johannes Kepler was born in 1571 and was one of the first strong believers of the heliocentric planetary theory. He discovered the three laws of planetary motion. This German astronomer believed in the Harmonices Mundi, or the Harmonies of the World. In his Harmonices Mundi he spoke of his third law, which was about the relationship between the orbital periods and the distances of the planets from the sun. He believed the sun regulates the velocity of the planets. This fact was a marking point in Astronomy history. This left a path for Newton’s theory of universal gravitation.
     Galileo Galilei was a student at the University of Pisa. He studied medicine, though his real interests were natural philosophy and mathematics. What he is mostly remembered for is his work on free fall, his use of telescopes, and his employment of experimentation. In 1592, he became a professor of the University of Padua. His job was to teach Euclid geometry and standard astronomy to medical students. Instead he taught and lectured a more unconventional form of astronomy and natural philosophy to his medical students. In a personal letter to Kepler sent in 1598, Galileo stated that he was a Copernican, meaning he believed the teachings of

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