Eratosthenes of Cyrene - Доклад по прочим предметам

 

Тезисы:

  • Eratosthenes was born in Cyrene which is now in Libya in North Africa.
  • Eratosthenes also studied under the poet and scholar Callimachus who had also been born in Cyrene.
  • Eratosthenes then spent some years studying in Athens.
  • Ptolemy II Philadelphus appointed one of Eratosthenes' teachers Callimachus as the second librarian.
  • One rather surprising source of information concerning Eratosthenes is from a forged letter.
  • Although the letter is a forgery, parts of it are taken from Eratosthenes' own writing.
  • Other details of what Eratosthenes wrote in Platonicus are given by Theon of Smyrna.
  • Eratosthenes also worked on prime numbers.
  • Eratosthenes made a surprisingly accurate measurement of the circumference of the Earth.
  • It is less good if 166.7 metres was the value used by Eratosthenes as Gulbekian suggests in .
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