Tuesday, March 1, 2011

So, how can we experimentally find the circumference of Earth using Eratosthenes's method?

Eratosthenes measured the circumference of Earth on a solstice, so that the rays of the sun were directly overhead at Syene.  Can we use a similar method to experimentally calculate the circumference of Earth from LaFayette on a day that is not a solstice day?

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