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Topic: Erastothenes of Cyrene

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	Eratosthenes - Wikipedia, the free encyclopedia
		His contemporaries nicknamed him 'Beta' because he was the second best in the mediterranean world in many subjects.
		He was born in Cyrene (in modern-day Libya), but worked and died in Alexandria capital of Ptolemaic Egypt.
		He is noted for devising a system of latitude and longitude, and for being the first known to have computed the size of the Earth.
	en.wikipedia.org /wiki/Erastothenes_of_Cyrene (1046 words)

	Erastothenes of Cyrene - Hutchinson encyclopedia article about Erastothenes of Cyrene (Site not responding. Last check: 2007-10-24)
		Greek geographer and mathematician whose map of the ancient world was the first to contain lines of latitude and longitude, and who calculated the Earth's circumference with an error of about 10%.
		The most important that remains is on geography – a word that he virtually coined as the title of his three-volume study of the Earth (as much as he knew of it) and its measurement.
		At the age of 30 he was invited by Ptolemy III Euergetes to become tutor to his son and to work in the library of the museum at Alexandria.
	encyclopedia.farlex.com /Erastothenes+of+Cyrene (259 words)

	Erastothenes, Greece, ancient history
		Born in Cyrene and educated by the poet Callimachus, Erastothenes became the head of the library in Alexandria at about the age of 36.
		Erastothenes tried to measure the distances between various countries and cities, a project which was to be completed by Hipparchus.
		Beta since he always came second as far as his contributions to science were concerned, since he was a contemporary and friend of the great Archimedes.
	www.in2greece.com /english/historymyth/history/ancient/erastothenes.htm (150 words)

	Radius of the Earth (Site not responding. Last check: 2007-10-24)
		This method was discovered by Erastothenes of Cyrene (third century B.C.).
		Erastothenes observed that at noon on the day of the summer solstice the sun shone directly down a deep well at Syene (present day Aswan).
		Erastothenes knew that the distance between Alexandria and Syene was approximately 5000 stades (1 stade is about 1/10 mile).
	www.math.nmsu.edu /~pmorandi/math112s99/RadiusOfEarth.html (150 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		Although considered an advanced scholar, Erastothenes was not the top of his class.
		Erastothenes made an accurate measurement of the cicumference of the earth.
		Erastothenes created his version of a prime number sieve.
	www.chester.k12.sc.us /lewisvillehigh/honors/dwayne/Erastothenes.htm (293 words)

	Radius of the Earth (Site not responding. Last check: 2007-10-24)
		The ancient Greeks believed that the earth was round, and, as we will see, Erastothenes was able to estimate the size of the earth quite well.
		This knowledge was lost to Europe during the dark ages, when people believed that the earth was flat.
		Because the sun is so large compared to the size of the earth, the sun's rays are practically parallel to each other as they hit the earth.
	sierra.nmsu.edu /morandi/CourseMaterials/RadiusOfEarth.html (532 words)

	Erastothenes (Site not responding. Last check: 2007-10-24)
		Erastothenes of Cyrene - Columbia Encyclopedia article about...
		Erastothenes was a Hellenistic astronomer who discerned that the Earth was round.
		To calculate the Primes i used "The Sieve of Erastothenes ".
	erastothenes.chezrad.com /page-5.html (204 words)

	The Graeco-Roman Period
		Herophilos (Alexandria, 335-280 BC): Comprehensive anatomy of humans and animals, based on dissection, discerns voluntary and involuntary nerves, the brain is recognized as the centre of the nervous system, pulse used in diagnosis, obstetrics.
		Eratostenes, Greek savant in Alexandria, from Cyrene, died 195.
		Erastothenes (275-195) calculates the earth's circumference (46,000 km) from the sun's altitudes at Alexandria and Asswan.
	www.reshafim.org.il /ad/egypt/timelines/culture11.htm (557 words)

	Welcome
		The Eratosthenes Project is named in honor of Eratosthenes of Cyrene (now known as Libya, North Africa).
		Erastothenes (275-195 B.C.) was a scholar, and for many years was the Director of the Library of Alexandria.
		Eratosthenes made many contributions to Science and Mathematics but it was his accurate measurement of the Earth's circumference, using differences in the Sun's altitude and shadows between two different locations, that we seem to remember him mostly for.
	sunship.currentsky.com (262 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		This required a deeper understanding of the Earth and the sky.
		One of the most important measurements of ancient times is that of the size of the Earth by Erastothenes (276 to 194 BC).
		Erastothenes was born in Cyrene, in modern day Libya:
	ganymede.nmsu.edu /tharriso/ast110/class04.html (2749 words)

	More info about the poet: Callimachus - references bibliography (Site not responding. Last check: 2007-10-24)
		Callimachus was born in Cyrene in c.310, and moved to Alexandria, where he lived at the...
		Little is known of Callimachus' life and only fragments of his writings have...
		Among Callimachus' other scholarly pupils were Erastothenes of Cyrene and...
	www.poemhunter.com /callimachus/resources/poet-25272/page-1 (684 words)

	Circumference Of The Earth (Site not responding. Last check: 2007-10-24)
		From this Eratosthenes reasoned the Sun's rays strike the...
		About - Space & Astronomy: Eratosthenes of Cyrene
		Catalogs the contributions to astronomy of this Greek scholar including his measurements of the distance to the moon and the sun and the circumference of the Earth.
	www.planetaryvision.net /circumferenceoftheearth.html (277 words)

	e-Keltoi: Volume 6, Celtiberians: Problems and Debates, by Francisco Burillo Mozota
		During this stage, Celtiberians were referred to as the "Celts of Iberia", thus being distinguished from other Celtic groups such the Gauls.
		Nonetheless, Pérez Vilatela (1999: 52) has suggested that these Celtiberians should be identified as the Galatae of the Iberian Peninsula, as mentioned by Erastothenes of Cyrene in the third and second centuries BCE (Fig.
		Classical authors' generic understanding of the Celtiberians (after F. Burillo 1998: Fig.
	www.uwm.edu /Dept/celtic/ekeltoi/volumes/vol6/6_8/burillo_6_8.html (17686 words)

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