How Eratosthenes Measured The Earth's Circumference With A Stick In 240 BCE, At An Astonishing 38,624 KilometersWhile "flat-Earthers" claim to believe the Earth is flat from their various positions around the globe, we have known since antiquity that the Earth is round. In fact, in around 240 BCE, Eratosthenes of Cyrene made the first measurements of the Earth's circumference, using nothing...
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