Posted on Mar 25, 2021
SFC Ralph E Kelley
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The Sub-Solar Point or Lahaina Noon
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Posted in these groups: Science_logo Science1_1 Hawaii
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1SG Steven Imerman
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Eratosthenes used the same method at Aswan in Egypt in about 200 BC to try to put a value on the circumference of the Earth, comparing how far off the angle of the sun was from Alexandria. He then used the distance between the cites and that angle for his calculations. He did a good job, coming with 1.5% of the actual value.
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SGT Mary G.
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Very interesting.
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