THE CIRCUMFERENCE OF EARTH WAS ALSO KNOWN:
More than 2,000 years ago Eratosthenes compared the position of the Sun’s rays in two locations to calculate the spherical size of the Earth with reasonable […]
Tag: Sun’s rays
More than 2,000 years ago Eratosthenes compared the position of the Sun’s rays in two locations to calculate the spherical size of the Earth with reasonable […]