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Nicholas Nicastro

Circumference

by Nicholas Nicastro

Hardcover

Nicastro brings to life one of antiquity’s greatest experiments, when Eratosthenes of Cyrene calculated Earth’s circumference to an accuracy of within 10 percent—perhaps even better—of the actual value of 24,860 miles.

Mem. Ed. $16.99

Pub. Ed. $23.95

You pay $1.00


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