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Lecture 13: The Harmony of the Spheres - Greek Astronomy
What are the origins of the Geocentric and Heliocentric models
put foward to explain planetary motion? This lecture begins a new
unit that will chart the rise of our modern view of the solar system by
reviewing the highly influential work by Greek and Roman philosophers
who elaborated the first geocentric and heliocentric models of
the Solar System. We discuss the various geocentric systems from
the simple crystaline spheres of Anaximander, Eudoxus, and Aristotle
through the Epicyclic systems of Hipparchus and Ptolemy. We will
also briefly discuss what is known of Aristarchus' mostly-lost heliocentric
system, which was to so strongly influence the work of Copernicus. The
ultimate expression of an epicyclic Geocentric system was that
described by Claudius Ptolemy in the middle of the 2nd Century AD, and
was to prevail virtually unchallenged for nearly 14 centuries.
Recorded 2007 Oct 8 in 1000 McPherson Lab on the Columbus campus
of The Ohio State University.
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By Richard Pogge
4.8
66 ratings
What are the origins of the Geocentric and Heliocentric models
put foward to explain planetary motion? This lecture begins a new
unit that will chart the rise of our modern view of the solar system by
reviewing the highly influential work by Greek and Roman philosophers
who elaborated the first geocentric and heliocentric models of
the Solar System. We discuss the various geocentric systems from
the simple crystaline spheres of Anaximander, Eudoxus, and Aristotle
through the Epicyclic systems of Hipparchus and Ptolemy. We will
also briefly discuss what is known of Aristarchus' mostly-lost heliocentric
system, which was to so strongly influence the work of Copernicus. The
ultimate expression of an epicyclic Geocentric system was that
described by Claudius Ptolemy in the middle of the 2nd Century AD, and
was to prevail virtually unchallenged for nearly 14 centuries.
Recorded 2007 Oct 8 in 1000 McPherson Lab on the Columbus campus
of The Ohio State University.
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