... was a Polish astronomer who was best known for his theory that the sun was the centre of the universe and that the earth, spinning on its axis once daily, revolves annually around the sun. Unlike Ptolemy, Copernicus was not supported by the church and many of his ideas were condemned. Galileo Galilei (1564-1642) was an ... Italian physicist and astronomer. His main work was concerned with the observation and discovery of sunspots, lunar mountains and valleys, the four largest satellites of Jupiter and the phases of Venus. In history ... , Galileo also stands as a symbol in the battle for...

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... and as a machine. First came the Geocentric model that showed the earth as being the center of the universe, the sun and other planets were shown revolving around the earth, with heaven shown beyond the crystalline shell. It wasn't until Nicholas Copernicus published his writing, "On the Revolution of the Heavenly Spheres," that people began to question this idea. The writing was so complicated that the vast majority of the population of Europe could not understand its ... . Who is right? Should they believe the writings and teachings of the Bible, or should they believe the facts presen...

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Aristotle & Ptolemy: Geocentric Universe Throughout history Greek philosophers such as Aristotle, Ptolemy, and Copernicus, tried to figure out the universe and its structure. Sometime between 384 and 322 BC Aristotle had believed that the universe was spherical and dividend into two worlds, the astronomical and the sub lunar world. Aristotle models didn't explain what has been observed about the motion of the stars and planets so that led Ptolemy ... disagreed with Aristotle's model because it didn't explain the observed motions of the stars and planets. He used a theory of epicycles, which a...

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In attempting to make sense of the earth's motion, particularly its position in the space (regardless the significance of the term at the time), people have spent uncalculated amount of efforts to make observations throughout the history. The major ancient Greek philosophers Plato and Aristotle, populated their worldview based on subjective insights, but falling short of progressive scientific demands. The gradual emerging from Ptolemy's geocentric theory (100-170), to Tycho's circular geocentric orbits (1546 ... -ground- based. He had all formerly discovered planets orbit around the sun in ex...

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... most remembered for his work on free fall, the use of the telescope, and his employment of experimentation. Galileo was a Copernican, a believer in the theories of Nicolas Copernicus. The major premises of Copernicus's theory are that the earth rotates daily on its axis and revolves yearly around the sun. He argued, furthermore, that the planets also circle the sun, and that the earth precesses on its axis (wobbles like a ... a non- secular court passed a sentence condemning Galileo's scientific discoveries and forced him to formally renounce his studies and findings. Galileo was then exi...

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Throughout history, people have debated whether or not the Renaissance was a period of revolutionary change. Thorough examination of the following aspects of society: politics, science, religion and art prove that the Renaissance was generally a period of revolutionary change. Politics were the one aspect of society in which the Renaissance had little impact. Feudalism can be defined as the "social system of Western Europe that developed during the eighth and ninth centuries in which vassals were ... time religion and science were being separated. Copernicus discovered that the sun was the ce...

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... view of the universe. These theories demonstrated the manner in which the various components of the universe related to one another as a result of the force of natural attraction, a relationship described in a mathematical formula which can be restated to contend that "the gravitational attraction of two bodies is equal to the product of their mass divided by the square of the distance between them". Newton's life and work are, in fact, among the most interesting in history. Newton ... would shake the foundations of the church and the foundations of Aristotelian mechanics which held mos...

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... " to help combat ignorance, censorship, and outright lies. If we can eliminate the taboo of these dangerous ideas, they can finally be discussed, and only by discussing these ideas, we can find the truth. Pinker explains that the concept of "dangerous ideas" is nothing new and all throughout history we have seen institutions punish intellectuals for their ideas. Pinker writes that "in ... a fact, and not many people today believe that the earth is the center of the universe. Galileo was someone who first spoke of this idea, and it was considered dangerous not just because it threatened p...

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