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Science is has become a necessity to understand simply to keep up with the enormous progress of today and tomorrow. Fundamental things, like how the world was supposed to be started or that Ptolemy and Galileo were and what they did are just things which need to get known to totally comprehend what is happening in the world around you. These things are exactly what you Will Need to understand, if you are a scientist, to a grocery store bagger. Ptolemy was a Greek guy who became the man to set the future for astronomy. He was the third of those Alexandrian men, this group of scientists and mathematicians taught Alexander and his generals themselves. Living around 150 A.D., and being one of the Alexandrian guys, he had access to knowledge no one in the time needed. From the information that he had access to, and the framework that Aristotle provided, Ptolemy was able to make a mathematical model of the world. Certain faults and glitches at the present version grew Ptolemy angry and confused. With his own current knowledge and implementing Euclid's geometry into the universe's version he generated the Ptolemaic system. At the Ptolemaic system, the version had the planets rotating around the Earth that's known as a different. Technically, at the version, the planets were not revolving about an Earth than has been centered, but more of an Earth which has been off-centered, which is referred to as odd. To fix the present problem of why the planets speed up and slow down, Ptolemy insisted that the planets don't travel in a specified speed, but more of a rate that affects at will. Then he brought up the point which the planets do travel in an set rate, but just at the equant. The equant was a center point at which at the point, planets might appear to be traveling in an equal and uniform rate. There was still a small problem, retrograde movement. Retrograde movement is every time a celestial object moves opposite to most other celestial objects around it. To explain this, he suggested that the planets go along a sub-orbit, in this scenario, across the deferent. His version let it be pleasant to Plato's and Aristotle's versions, but go into more detail of eccentric observations. Nicolaus Copernicus was born in February 19, 1473 in Torun and has been the creator of the heliocentric planetary concept. He insisted that there was a rotating Earth tha...