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Episode 18: Aristotle, Plato's Other Student
Two of Plato's students were notable astronomers. We looked at one of them, Eudoxus, in the last two episodes. In thi...
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Episode 17: The Attic Calendar and its Discontents
We turn back the clock and see how a variety of Greek astronomers over the centuries contributed to the Greek calenda...
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Episode 16: The Homocentric Spheres of Eudoxus
In working on the problem of doubling the cube, Plato's friend Archytas devised an ingenious solution that involved a...
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Episode 15: On Plato's Broad Shoulders
Before leaving the world of the Pre-Socratics, we look briefly at the astronomy of Oenopides, which had a more observ...
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Episode 14: The Atomic Philosophers
Two philosophers, Leucippus and Democritus, attempted to synthesize the monist theories of the earlier natural philos...
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Episode 13: Ex Uno, Plura
As we transition from the Archaic Period of Greece to the Classical Period, two philosophers, Empedocles and Anaxagor...
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Episode 12: The Eleatic School & the Way of Truthiness
After the Median invasion, the Ionian philosopher Xenophanes, a student of the Anaximander, was forced to flee to Ele...
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Episode 11: The So-Called Pythagoreans
We turn to the enigmatic, charismatic philosopher Pythagoras and the following that he inspired. Though Pythagoras is...
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Episode 10: The Ionian School
Miletus became a wealthy Greek city during the Archaic Period and developed a thriving intellectual culture which inc...
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Episode 9: Thales, through a Glass Darkly
Thales was the first of the Greek astronomers and became known as one of the Seven Sages of Greece. Over the centurie...
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Episode 8: The Bards Sing of the Skies
We outline the early development of Greek civilization after the Late Bronze Age Collapse and how the unique geograph...
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Episode 7: Greek Tales of Ancient Nights & Days
As we start to examine the astronomy of Ancient Greece we hear of the myth cycles of Theseus and Perseus, episodes fr...
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Episode 6: System of a B
We dive into the most sophisticated model of planetary and lunar motions that the Babylonians developed: System A and...
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Episode 5: A System of Weights & Measures
We look at how the Babylonians represented information in their astronomical tablets by examining their number system...
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Episode 4: The Astronomical Diaries
We step back and look at Babylon's broader political history and see how Babylonian astronomy changes during the rise...
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Episode 3: When the Moon Disappears
We look at how the Babylonians associated the heavens with their gods and how Mesopotamian astrology developed after ...
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Episode 2: The Stars over Babylon
What are the earliest records of constellations? How did the ancient Babylonians keep track of their progress through...
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Episode 1: The Heavens & History
How should we approach the history of astronomy? How have the questions that astronomers have asked changed through ...