The discovery of erathostene

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  • 1. THE DISCOVERY OF ERATHOSTENE
  • 2. How the Greeks calculated the radius of the earth
  • 3. Summary
    • Introduction : The Greek scientists
    • The life of Erathostene
    • The measurement of the radius of the earth
    • The impact of this discovery
  • 4. The Antique Greek world had a major role in the development of the Western civilization
    • Founders of:
    • Philosophy
    • Démocracy
    • Physics
    • Mathematics
    • Astronomy
  • 5. Some scientists from the VII century BC to the II century BC
    • In chronological order:
    • Thalès
    • Pythagore
    • Hippocrate
    • Aristote
    • Euclide
    • Archimède
    • Aristaque
    • Erathostène
    • Hipparque
    • Ptolémée
  • 6. I . The life of Erathostène
  • 7. II. The measurement of the radius of the earth Why at the same time the obelisk of Syene has not shadow, but that of Alexandria is in a clear projecting ?
  • 8. Erathosthène’s mind
  • 9.  
  • 10. III. The impact of this discovery
    • The circumference of the earth
    • Exploration possibilities
  • 11. Named after Eratosthenes
    • Eratosthenes crater on the moon
    • Eratosthenian period in the lunar geologic timescale
    • Eratosthène astéroid
  • 12. THANK YOU FOR YOUR ATTENTION