Eratosthenes - Wikipedia Eratosthenes of Cyrene ( ɛrəˈtɒsθəniːz ; Ancient Greek: Ἐρατοσθένης [eratostʰénɛːs]; c 276 BC – c 195 194 BC) was an Ancient Greek polymath and scholar
Eratosthenes | Biography, Discoveries, Sieve, Facts . . . Eratosthenes, Greek scientific writer, astronomer, and poet, who made the first measurement of the size of Earth for which any details are known He was also the director of the Library of Alexandria His only surviving work is Catasterisms, a book about constellations
Eratosthenes - World History Encyclopedia Eratosthenes (lived circa 276 to 195 BCE) was a Greek astronomer, geographer, mathematician, and poet best known for being the first to calculate the circumference of the earth and its axial tilt
Eratosthenes - New World Encyclopedia Eratosthenes (Greek Ἐρατοσθένης; 276 B C E – 194 B C E ) was a Greek mathematician, geographer and astronomer His contemporaries nicknamed him "beta" (Greek for "number two") because he supposedly proved himself to be the second in the ancient Mediterranean world in many fields
Eratosthenes - Biography, Facts and Pictures - Famous Scientists Eratosthenes calculated the tilt of Earth’s axis relative to the plane of its equator with good accuracy • He produced the first map of the world featuring meridian lines and parallel lines These were similar to our modern lines of latitude and longitude
Eratosthenes: Life and Major Accomplishments of the Ancient . . . Eratosthenes of Cyrene (c 276–c 195 BC) was an Ancient Greek polymath renowned for his contributions to mathematics, geography, poetry, astronomy, and music theory Eratosthenes was the son of Aglaos, residing in Cyrene, which was established centuries earlier by Greek settlers
Measuring the Globe: Eratosthenes’ Measurement of the Earth Eratosthenes' calculation was a monumental achievement in the field of geography and astronomy It provided a concrete measurement that could be used to better understand the size of the Earth, and it demonstrated the power of scientific observation and mathematical reasoning