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Eratosthenes: Astronomer. PowerPoint By Nate Silva 12/17/09. Eratosthenes.
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Eratosthenes: Astronomer PowerPoint By Nate Silva 12/17/09
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.
Bibliography • Wikipedia.org • Nndb.com
Accomplishents • Eratosthenes is the founder of scientific chronology
Accomplishments (cont’d) • He measured the Earth’s circumference form , Alexandria,Egypt
Accomplishments (cont’d) • He wrote a book about Hellenistic myths about constellations
Accomplishments (cont’d) • He wrote three books about mathematical geography
Accomplishments (cont’d) • He created a star catalogue containing 675 stars
Accomplishments (cont’d) • He fixed the dates of the Trojan Wars to make them more accurate
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