Australian Sky & Telescope

Eudoxus and his spheres

s with so many of the pioneering Greek astronomers, we do not know much about the life of Eudoxus. We have only fragments of his story, though we know he lived in the fourth century BCE, being born and eventually dying in the city of Cnidus on the southwest cost of Asia Minor, now in Turkey. His name means ‘being of good reputation,' and he certainly made major contributions in astronomy, mathematics and ethics in

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