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Lapatulllka [165]
3 years ago
14

Describe how Eratosthenes advanced humanity's understanding of the Earth.

History
1 answer:
Alex3 years ago
5 0

Answer:

Eratosthenes erected a pole in Alexandria, and on the summer solstice he observed that it cast a shadow, proving that the Sun was not directly overhead but slightly south. Recognizing the curvature of the Earth and knowing the distance between the two cities enabled Eratosthenes to calculate the planet's circumference.

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