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What fraction of the Earth"s circumference did Eratosthenes find for the distance between Syene and Alexandria?
What fraction of the Earth"s circumference did Eratosthenes find for the distance between Syene and Alexandria? 1/50 (which he had determined from about a 7 angle of arc) How did he measure the distance between the two cities? He hired a man to pace out the entire distance from Alexandria to Syene. How close was Eratosthenes in his calculation to the correct answer?