IMG_1884

L S Chapter 6: Ptolemy (AD 150) li.l" 1. By Plolemy’s time, a completely erroneous model of the universe had been pieced together. Describe a few of these erroneous elements. -One of these erroneous elements was the assumption that the stars were moving around the earth, which made sense from the Earth's view. Another erroneous element was the miscalculation of the planet's orbit. thinking that the planets stopped mid orbit and then back- = tracked was a huge error. il (At | 2. What did Ptolemy's A!magest contribute to the knowledge of the day? Why was this important? . -The A!magest brought all the calculations and observations into one manual that took into account all the heavenly bodies and their movements. This manual was important because it helped shape the mind of astronomers. 3. During this time, there were "no innovations, no paradigm shifts”. Define paradigm (as in a scientific paradigm) and explain what the author means by this statement. - -A paradizm is a model that represents a perspective/viewpoint in a field of study. By stating “no innovations, no paradigm shifts” the author means that after the flm% was made it became 100% accepted and anything that would have contradicted it would have been deemed false. 4. In particular, why did European sclwolars {up to the }fl;gg;) fail to dispute Ptolemy?