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논문 기본 정보

자료유형
학술저널
저자정보
오준영 (한양대학교)
저널정보
대한지구과학교육학회 대한지구과학교육학회지 대한지구과학교육학회지 제10권 제2호
발행연도
2017.8
수록면
214 - 225 (12page)
DOI
https://doi.org/10.15523/JKSESE.2017.10.2.214

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The first accurate estimate of the Earth’s circumference was made by the Hellenism scientist Eratosthenes (276- 195 B.C.) in about 240 B.C. The simplicity and elegance of Eratosthenes’ measurement of the circumference of the Earth by mathematics abstraction strategies were an excellent example of ancient Greek ingenuity. Eratosthenes’s success was a triumph of logic and the scientific method, the method required that he assume that Sun was so far away that its light reached Earth along parallel lines. That assumption, however, should be supported by another set of measurements made by the ancient Hellenism, Aristarchus, namely, a rough measurement of the relative diameters and distances of the Sun and Moon. Eratosthenes formulated the simple proportional formula, by mathematic abstraction strategies based on perfect sphere and a simple mathematical rule as well as in the geometry in this world. The Earth must be a sphere by a logical and empirical argument of Aristotle, based on the Greek word symmetry including harmony and beauty of form. We discuss the justification of these three bold assumptions for mathematical abstraction of Eratosthenes’s experiment for calculating the circumference of the Earth, and justifying all three assumptions from historical perspective for mathematics and science education. Also it is important that the simplicity about the measurement of the earth's circumstance at the history of science.

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