Eratosthenes calculates the Earth's circumference using a stick - June 19th, 240 BC
On this day in 240 BC, ancient Greek scholar Eratosthenes estimated the circumference of the Earth.See omnystudio.com/listener for privacy information.
On this day in 240 BC, ancient Greek scholar Eratosthenes estimated the circumference of the Earth.See omnystudio.com/listener for privacy information.