eratosthenes - Eratosthenes born c 276 bce Cyrene kampas rem motor Libyadied c 194 bce Alexandria Egypt was a Greek scientific writer astronomer and poet who made the first measurement of the size of Earth for which any details are known At Syene now Aswān some 800 km 500 miles southeast of Alexandria in Egypt the Suns rays fall vertically at noon at the summer solstice Eratosthenes New World Encyclopedia Eratosthenes 276 BC 194 BC Biography MacTutor History of The son of Aglaos Eratosthenes was born in 276 BC in CyreneNow part of modernday Libya Cyrene had been founded by Greeks centuries earlier and became the capital of Pentapolis North Africa a country of five cities Cyrene Arsinoe Berenice Ptolemias and Apollonia Alexander the Great conquered Cyrene in 332 BC and following his death in 323 BC its rule was given to one of his Eratosthenes World History Encyclopedia Eratosthenes Simple English Wikipedia the free encyclopedia Eratosthenes Facts Biography Famous Mathematicians Eratosthenes Wikipedia Eratosthenes Map Digital Maps of the Ancient World Eratosthenes was an Ancient Greek scientist born in the town of Cyrene in about 276 BC Cyrene then a Greek city is now the town of Shahhat in Libya Eratosthenes was educated in philosophy and mathematics in Athens We do not know what he looked like Learn about Eratosthenes the first to introduce parallels and meridians into cartography and his revolutionary world map that divided the Earth into five climate zones Explore his map reconstruction and the cities he located on his Geography Biography of Eratosthenes Greek Geographer ThoughtCo Eratosthenes was a scholar and manager of apa itu value the Great Library of Alexandria who calculated the circumference of the earth using a simple method He also wrote a treatise on geography and was the first to use the term in history Eratosthenes was a Greek mathematician geographer and astronomer who calculated the Earths circumference and invented the armillary sphere He also wrote the first treatise on geography and introduced the climatic zones of torrid temperate and frigid Eratosthenes Biography Discoveries Sieve Facts Britannica Eratosthenes was a Greek polymath who calculated the earths circumference and tilt invented the Sieve of Eratosthenes and ran the Library of Alexandria He studied under a skeptic philosopher in Athens and applied a skeptical method to his research Eratosthenes of Cyrene 276 194 BC was a 3rd century BC Greek mathematician geographer and astronomerHe was head of the Library of Alexandria from 240 BC until his death this was the most important library of the ancient world According to the Suda 1 his contemporaries nicknamed him Beta the second letter of the Greek alphabet because he was the second best in the world in Eratosthenes was a polymath who calculated the circumference of the Earth invented the sieve of Eratosthenes and wrote the first treatise on geography Learn about his life achievements and legacy in this biography Eratosthenes Biography Facts and Pictures Famous Scientists Eratosthenes was a Greek mathematician librarian and scholar who lived in the 3rd century BC He is known for his contributions to number theory geometry Platonism and geodesy such as the Sieve of Eratosthenes and the measurement first kiss adalah of the earths diameter
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