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Unformatted text preview: Galileo Challenges the Geocentric Model-Heliocentric model challenged beliefs held for 2000 years.-The Church felt threatened by this. -Galileo was arrested and Tried (trialed). -He was not allowed to advocate the Heliocentric Model.-He had reason to fear: Giordano Bruno, another advocate of the Heliocentric Model, was tried by the Inquisition.-Bruno was burned at the stake for heresy!-However word of Galileos discoveries spread Two Theories of the Solar System-Ptolemy (1 st century AD) proposed a geocentric theory-His theory could explain the retrograde motion of planets, and was not challenged for over 1000 years.-Copernicus (1500s) suggested a heliocentric theory:-Planets orbited the sun, not the earth, in circles....
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- Spring '11