Carl Sagan explains how Eratostenes knows the earth is curve

Carl Sagan explains how Eratostenes knows the earth is curve
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Видео

Carl Sagan explains how Eratostenes knows the earth is curve. Extract from: Cosmos Episode 1: The Shores of the Cosmic Ocean. Original Video: thanks to Hernán Gil., видео от 2025-02-04 загрузил на rutube Тёплый луч...