| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,740,010,983 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Eratosthenes |
Also found in: Wikipedia, Hutchinson | 0.03 sec. |
|
Eratosthenes (ĕrətŏs`thənēz), c.275–c.195 B.C., Greek scholar, b. Cyrene. A pupil of Callimachus Callimachus, fl. c.280–45 B.C., Hellenistic Greek poet and critic, b. Cyrene. Educated at Athens, he taught before obtaining work in the Alexandrian library. There he drew up a catalog, with such copious notes that it constituted a full literary history. ..... Click the link for more information. in Athens, he became (c.240 B.C.) head of the library at Alexandria. Known for his versatility, he wrote poetry and works (most of them lost) on literature, the theater (notably on ancient comedy), mathematics, astronomy, geography, and philosophy; he also drew a map of the known world and evolved a system of chronology. Especially noted as an astronomer, he is credited with measuring the circumference and tilt of the earth and the size and distance from the earth of the sun and the moon. Eratosthenes ?276--?194 bc, Greek mathematician and astronomer, who calculated the circumference of the earth by observing the angle of the sun's rays at different places How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
they brought together in Alexandria the greatest thinkers of the time-Euclid, the inventor of geometry; Erastothenes, who calculated the circumference of the earth; Herophilus, who established the rules of anatomy and physiology; Aristarchus and Dionysius Thrax, who |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|