This Is How A Man 2,200 Years Ago Calculated The Circumference Of The Earth With Just A Stick

Long before the NASA was sending satellites up into space, the ancient Greeks developed a way to determine the world was spherical over 2000 years ago.

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.

Leave a Reply

%d bloggers like this: