Submitted 2 months ago by ywellow@fedia.io to videos@lemmy.world
https://youtu.be/rYBC6SVRngw
Eratosthenes did it for the cost of paying a man to count his steps from one city to another.
He was accurate within 1% of the Earth’s circumference.
en.wikipedia.org/wiki/Eratosthenes
disguy_ovahea@lemmy.world 2 months ago
Eratosthenes did it for the cost of paying a man to count his steps from one city to another.
He was accurate within 1% of the Earth’s circumference.
en.wikipedia.org/wiki/Eratosthenes