He studied astronomy, geography, and math. He is credited with devising an algorithm for finding prime numbers called the sieve of Eratosthenes, in which one arranges the natural numbers in numerical order and strikes out one, every second number following two, every third number following three, and so on, which just leaves the prime numbers. II. Read about the life of Eratosthenes. Archives. Learn, revise and practice all the mocks questions related to the Oceanography with our simple and easy Flashcard quizzes How far from the correct value was Erathosthenes? He is best known for being the first person known to calculate the circumference of the Earth, which he did by using the extensive survey results he could access in his role at the Library; his calculation was remarkably accurate. If you ask any geographer to name a person who was responsible for the founding of their discipline, theyre likely to say, Ptolemy. Claudius Ptolemaeus lived in second-century Alexandria from 100 AD to 170 AD, writing the Geographike hyphegesis (c150), also known as the Geography. At that time he also wrote Peri agathn kai kakn, a text that was lost. In the second, he showed his studies on the dimensions of the earth and the last was devoted to political geography. [12] As he aged, he contracted ophthalmia, becoming blind around 195 BC. The course consists of an extensive examination of physical and cultural factors that contribute to and produce the variable character of the earth's surface and a discussion of the significance of . is credited for two important contributions to oceanography: 1. . 2006. Among the ancient Greek scholars Herodotus, Plato, Aristotle, Eratosthenes is the chief ones. 4. He believed that the celestial bodies revolved around the Earth. The ancient Greek scholar Eratosthenes is dubbed the father of geography. He was the first to use the word geography, and he also had a small-scale understanding of the planet that helped him determine the earths circumference. Marcotte, D. (1998).
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