Carl Sagan explains how the ancient Greeks knew the Earth was round and calculated its circumference over 2,000 years ago. 🌎pic.twitter.com/01aCD14v2u— venus 🧜♀️ (@VENUS__6942) December 20, 2022
Carl Sagan explains how the ancient Greeks knew the Earth was round and calculated its circumference over 2,000 years ago. 🌎pic.twitter.com/01aCD14v2u