Measuring the Circumference of the Earth: the Eratosthenes Method
July 2, 2007 by David Dickinson
Filed under Classic Experiments Waiting to be Duplicated
This is one I duplicated in High School that I first heard about on Carl Sagans’ Cosmos series. Way back in the 3rd Century BC, the Greek philospher Eratosthenes of Cyrene devised a method of calculating the circumference of the Earth.
