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Early Greek Astronomy And Ptolemy’s Almagest

Early Greek Astronomy And Ptolemy’s Almagest. Eratosthenes. Finds the size of the earth within 5%. Important Ratio. Distance to the Moon. If the sun is a point source. Trigonometry Tables in the Almagest. Not in terms of our trig functions sine, cosine, tangent, etc.

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Early Greek Astronomy And Ptolemy’s Almagest

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  1. Early Greek Astronomy And Ptolemy’s Almagest

  2. Eratosthenes • Finds the size of the earth within 5%

  3. Important Ratio

  4. Distance to the Moon • If the sun is a point source

  5. Trigonometry Tables in the Almagest • Not in terms of our trig functions sine, cosine, tangent, etc.

  6. Greek Number System

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