Eratosthenese+meetod

Eratosthenes, the Brilliant Scientist of Antiquity Eratosthenes (276 - 194 b.C.), director of the Great Library of Alexandria, one of the greatest mathematicians, astronomers and geographers in history. His incredible achievements were the measurement of the earth's circumference, the earth-Sun distance, the calculation of the Prime Numbers and the inventor of the armillary sphere. media type="youtube" key="T4kxwZeUdGQ" height="344" width="425" Video media type="google" key="4714973523568227830&hl=et&fs=true" width="400" height="326" The World is Round [] Circumference & More Geometry media type="youtube" key="wnElDaV4esg" height="344" width="425" Eratosthenes calculates Earth's circumference. In the 3rd century BCE, Eratosthenes calculated the circumference of the Earth to high precision. Further Reading: [] This is a short segment from the series Cosmos by the late Carl Sagan. The most poetic popularizer of science in the 20th century. media type="youtube" key="0JHEqBLG650" height="344" width="425"