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Overview of Ancient Cosmologies by Ka Chun Yu is a document available to read on EtoBox.
Early Babylonian astronomers made careful observations of the moon and planets and invented the sexagesimal system used for modern timekeeping. They envisioned a geocentric universe with Earth at the center surrounded by water below and planets and the sun above. The ancient Greeks also proposed geocentric models, with Thales proposing Earth as a flat disk surrounded by water. Later Greeks like Anaxagoras, Eudoxus, and Aristotle refined these models, with Aristotle proposing the universe was eternal and unc
- Author
- Ka Chun Yu
- Language
- EN