The Architect of the World
Michael Webster
Broschiertes Buch

The Architect of the World

Eratosthenes

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In the third century B.C., the Earth was a philosophical concept. One man dared to make it measurable. Eratosthenes of Cyrene, Chief Librarian of the legendary Library of Alexandria, was the ultimate polymath. Called the Pentathlos for his mastery of science, literature, and history, his mind stretched across the entire breadth of ancient knowledge. Yet, it is his most audacious feat that defines his legacy. With nothing more than simple observation-the angle of a shadow and the sunlight hitting a well-Eratosthenes used geometry to calculate the Earth's circumference with astonishing accuracy....