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Wikipedia - Eratosthenes - http://en.wikipedia.org/wiki/Eratosthenes
Brief article covers his life and work. Includes links for further reading. |
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The Eratosthenes Project - http://www.phys-astro.sonoma.edu/observatory/eratosthenes/
Gives information about the techniques and computations used by this ancient mathematician to find the circumference of the earth. Includes sample sketch and reconstructed map of the world. |
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http://www.pbs.org/wnet/hawking/cosmostar/html/cstars_eratho.html - http://www.pbs.org/wnet/hawking/cosmostar/html/cstars_eratho.html
Brief information on Eratosthenes, including when and where he was born, as well as later historians that followed up on his work of the stars. |
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Eratosthenes of Cyrene - http://www-history.mcs.st-andrews.ac.uk/Biographies/Eratosthenes.html
Biography of the mathematician, geographer and astronomer born 276 BC in Cyrene, North Africa (now Shahhat, Libya). From The MacTutor History of Mathematics archive. |