This is How a Man 2200 Years ago Calculated the Circumference of the Earth With just a Stick


In the mid-20th century we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, a man in Ancient Greece came up with nearly the exact same figure using just a stick and his brain.

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  1. Stick, Brain, and hiring someone to walk 800 KM lol

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