Method to measure Earth missed by ancient Greeks

  title={Method to measure Earth missed by ancient Greeks},
  author={Fabio Falchi},
  journal={Physics Education},
  • Fabio Falchi
  • Published 2012
  • Physics
  • Physics Education
  • I describe a simple method to calculate Earth dimensions using only local measurements and observations. I used modern technology (a digital photo camera and Google Earth) but the exact same method can be used without any aid, with naked eye observations and distances measured by walking, and so it was perfectly accessible to Ancient Greek science. Eratosthenes was the first to calculate the Earth's dimensions in III century B.C. by measuring the altitude of the Sun at the summer solstice in… CONTINUE READING

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