";s:4:"text";s:5308:" At the Library of Alexandria, he was the chief librarian where he read books on a variety of disciplines that expanded his knowledge extensively. Eratosthenes made the first accurate measurement of the size of the earth. Eratosthenes of Cyrene (276 BC–194 BC) was a third century BC Greek mathematician, geographer and astronomer. He is accredited for […] Cyrene, then a Greek city, is now the town of Shahhat in Libya. Eratosthenes is most famous for making the first accurate measurement of the circumference of the Earth. He had inclination toward arts as well as music and poetry composition. He lived from 276 to 194 B.C. Eratosthenes facts for kids. He became so depressed, in fact, he chose to kill himself by refusing to eat. 205 B.C.) Eratosthenes was the third librarian at the famous Library of Alexandria. Greek astronomer. Eratosthenes was educated in philosophy and mathematics in Athens. He lived and worked for most of his life in the city of Alexandria in Egypt. Eratosthenes was known under the name β, because he supposedly proved himself to be the second in the world in many fields. Eratosthenes measured the circumference of the Earth without leaving Egypt. Eratosthenes … He went blind while he was in his early 80s and he became depressed. Eratosthenes: Life and Career Facts . He does this with a little bit of geometry, and the knowledge that, due to the curvature of the earth, if the sun is seen as directly overhead at one place at a particular time, the sun could not be directly overhead at a different place at the same time, as follows. Eratosthenes was an ancient Greek mathematician, geographer, and astronomer. He is accredited for […] At the Library of Alexandria, he was the chief librarian where he read books on a variety of disciplines that expanded his knowledge extensively. His teachers included the scholar Lysanias of Cyrene and the philosopher Ariston of Chios who had studied under Zeno, the founder of the Stoic school of philosophy. Eratosthenes was an illustrious ancient Greek polymath who had expertise in mathematics, astronomy and geography. Sieve of Eratosthenes, systematic procedure for finding prime numbers that begins by arranging all of the natural numbers (1, 2, 3, …) in numerical order. 195 b.c.) Eratosthenes (276-195 BCE) was an ancient Greek Alexandrian scholar, native of Cyrene, who attained distinction in many fields including philosophy, mathematics, astronomy and history.However, it was in geography where he proved to be more skillful for he was one of the greatest of all ancient geographers. He was also reputedly known for his haughty character. 276 b.c. After striking out the number 1, simply strike out every second number following the number 2, every third number following the number 3, and continue in this manner to strike out every nth number following the number n. Eratosthenes was an illustrious ancient Greek polymath who had expertise in mathematics, astronomy and geography. Eratosthenes of Cyrene (276 b.c.-194 b.c.). geography, mathematics.. Eratosthenes, son of Aglaos, was born in Cyrene but spent most of his working life in Alexandria, where he was head of the library attached to the famous Museum from ca. Eratosthenes wrote a Geographica based on his … Eratosthenes was an Ancient Greek scientist born in the town of Cyrene in about 276 BC. He was head of the Library of Alexandria from 240 BC until his death: this was the most important library of the ancient world. Eratosthenes of Cyrene facts: The Greek scholar of natural history Eratosthenes of Cyrene (ca. Eratosthenes was born in Cyrene which is now in Libya in North Africa. Eratosthenes (b.Cyrene [now Shahhat, Libya], ca. ; d.Alexandia, ca. Eratosthenes was born in the year 276 BC to Aglaos and his wife; but the exact date of his birth is unknown. Eratosthenes, Greek scientific writer, astronomer, and poet, who made the first measurement of the size of Earth for which any details are known. 284-ca. Eratosthenes of Cyrene (/ ɛr ə ˈ t ɒ s θ ə n iː z /; Greek: Ἐρατοσθένης ὁ Κυρηναῖος, romanized: Eratosthénēs ho Kurēnaĩos, IPA: [eratostʰénɛːs]; c. 276 BC – c. 195/194 BC) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist.He was a man of learning, becoming the chief librarian at the Library of Alexandria. The final years of Eratosthenes were tragic. Named after Eratosthenes. He knew that on the summer solstice at local noon at the Syene on the Tropic of Cancer, the sun would appear at the directly overhead.He also knew, from measurement, that in Alexandria, the angle of elevation of the sun would be 1/50 of a full circle (7°12') south of the zenith at the same time. Kids Encyclopedia Facts. We do not know what he looked like. Eratosthenes’ Final Years. His only surviving work is Catasterisms, a book about constellations. was proficient in many fields, but his most outstanding work was probably in mathematics and geography. In 195 BC he became blind and a year later he starved himself to death. He studied under the Stoic philosopher Zeno, Ariston, Lysanias, and the poet-philosopher Callimachus. If the Earth really was a sphere, Eratosthenes … He had inclination toward arts as well as music and poetry composition. ";s:7:"keyword";s:24:"facts about eratosthenes";s:5:"links";s:7591:"Cape Canaveral Beach,
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