He lived from 276 to 194 B.C. Review of (D.W.) Roller 'Eratosthenes' Geography. He found the circumference of the Earth to be nearly 250,000 stadia (25,000 miles). Contribution of Greek Scholar in Geography Full Notes for UGC NET He was born in 271 BC in Cyrene, which is now known as Libya, in North Africa. Home | About | Contact | Copyright | Privacy | Cookie Policy | Terms & Conditions | Sitemap. [9] He wrote poems: one in hexameters called Hermes, illustrating the god's life history; and another in elegiacs, called Erigone, describing the suicide of the Athenian maiden Erigone (daughter of Icarius). Other things that Eratosthenes thought but did not turn out to be: the fact that the earth is a perfect sphere, that Alexandria is exactly north of Siena, and that the sun's rays are perfectly parallel. He was the founder of Geography and holds the credit to . The purpose of this paper is to demonstrate how telepresence technology was used by oceanographers in the field to assess and analyze three shipwrecks and numerous artifacts discovered during exploratory expeditions of the submerged plateau known as Eratosthenes Seamount (Fig. The pecialized text They are thoe that contain a vocabulary and terminology pecific to a certain branch of knowledge. This page was last edited on 26 February 2023, at 18:23. The Arabs were the great contributors in the field of mathematical, physical and regional geography. 2. The [] Lived c. 276 BC - c. 194 BC. Eratosthenes (276 BC - 194 BC) was an Ancient Greek scientist and philosopher who did work in astronomy, geometry, geography, mathematics, as well as poetry and history. [16] A geometric calculation reveals that the circumference of the Earth is the distance between the two cities divided by the difference in shadow angles expressed as a fraction of one turn. Although these tables have not survived, it is claimed that twelve books of tables of chords were written by Hipparchus. He could then use simple proportions to find the Earths circumference 7.2 degrees is 1/50 of 360 degrees, so 800 times 50 equals 40,000 kilometers.