Aristotle and his followers also believed that everything outside the earth was perfectly spherical and smooth, apparently a quality of ether (University of Michigan). ... In 1597, his friend, Jacopo Mazzoni, a philosopher, published a book against the motion of the Earth. ... These assumptions were, of course, based on the works of Aristotle. ... After observing the phases of Venus, it seemed perfectly obvious to Galileo that Aristotle's Earth-centred model of the universe must be false. ... The astronomical discoveries he made with his telescopes were described in a short book calle...

• Word Count: 4135
• Approx Pages: 17
• Grade Level: High School

For many centuries, there was very little scientific advancement due to a restraint the Catholic Church had over Europe during the Middle Ages, but this all changed during The Scientific Revolution. During the Middle Ages, the Catholic Church had created a system of beliefs based on the teachings o...

• Word Count: 2877
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School