Ptolemy - • Aristarchus believed earth revolved around...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
HIS 322D Ptolemy Aristotle and Plato – Natural philosophers Astronomy – technical science o Wasn’t concerned with reality of things o Used things no more complicated than a stick Hellenistic Period – Greek influence period o Alexandria – center of science and knowledge, Ptolemy worked here o Sticks in Syene and Alexandria, figured out Earth = 25,000 mi. o 200 BC 300 AD – end of Math’s apex
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: • Aristarchus believed earth revolved around sun, figured out distance to sun and moon • Eudoxus built on Plato (was his student), thought up system to account for retrograde motion o Aristotle adopted Eudoxus’ model, eventually fell out of favor with astronomers • Hipparchus – proposes epicycle system • Ptolemy really gave a run down on the epicycle theory in the Almagest o Used two other methods: eccentrics – off center...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online