2.++Heliocentric+Theory

=**//__The Heliocentric Theory by: Soloman and Luis__//**=

The heliocentric theory was proposed by Aristarchus of Samos as early as the 3rd century BC. This revolutionary theory presented the idea that all the planets in our solar system revolved around the sun which is completely the opposite of the geocentric theory. Aristarchus calculated that the sun was seven times wider and hundreds of times more volumous than the Earth which led him to believe that there was no reasonable way that the something as huge as the sun would revolve around a much smaller object. Despite the fact that this idea was presented in the third century BC, it didn't have any real support until the 16th century. Renaissance mathematician, astronomer, and Catholic cleric Nicolaus Copernicus of Poland, presented a really good model of the heliocentric system. The model that Nicolaus displayed led up to the Copernicus Revolution which sparked a heated debate between all kinds of people; clerics and astronomers alike. Tycho Brahe, a well acomplished astronomer at the time of copernicus argued that the five known planets other than Earth revolved around the sun while the sun revolved around the Earth. He called it the Tychonic system. His arguement was that the (Aristotelian) physics then gave no explination of large bodies of mass like the Earth and Copernicus' ideas didn't follow the thoughts established by Ptolemy which was a widely accepted system of the universe. People tended to look toward the bible in defense because they quoted straight out of the bible how "Joshua bid the sun to stay still and not the Earth". This revolution continued for a while until supported the following century by Johannes Kepler who added elliptical orbits to the theory and Galileo Galilei who expanded to this theory based on his research using the telescope. This theory kept on being added to by astronomers in the following years like William Herschel and Bessel until in the 1920's, they came to the conclusion that the sun was not the center of the universe and was really a part of it along with billions of others.

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