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Eratosthenes: Astronomer

Eratosthenes: Astronomer. PowerPoint By Nate Silva 12/17/09. Eratosthenes.

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Eratosthenes: Astronomer

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  1. Eratosthenes: Astronomer PowerPoint By Nate Silva 12/17/09

  2. Eratosthenes • I’m reporting on Eratosthenes who was a famous Epic Poet, librarian, scholar, inventor, athlete, astronomer and mathematician. He was born in Cyrene (modern day Libya). He died in Alexandria, Egypt almost completely blind. Some people say committed suicide by starvation. His nickname was beta (the second letter in the greek alphabet) because he was the second best in every field.

  3. Bibliography • Wikipedia.org • Nndb.com

  4. Accomplishents • Eratosthenes is the founder of scientific chronology

  5. Accomplishments (cont’d) • He measured the Earth’s circumference form , Alexandria,Egypt

  6. Accomplishments (cont’d) • He wrote a book about Hellenistic myths about constellations

  7. Accomplishments (cont’d) • He wrote three books about mathematical geography

  8. Accomplishments (cont’d) • He created a star catalogue containing 675 stars

  9. Accomplishments (cont’d) • He fixed the dates of the Trojan Wars to make them more accurate

  10. Accomplishments (cont’d) • He earned the nickname beta which is the second letter of the Greek alphabet because he never proved to be the best in any field

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