WebJun 8, 2024 · measure out the circumference of a circle centered at your stake. divide the circumference by two times the length of the rope (i.e. diameter) if ratio \(= \pi\), it’s flat: zero curvature; if ratio \(\lt \pi\), positive curvature; if ratio \(\gt \pi\), negative curvature; Triangles: put three stakes on the ground, somewhat far apart WebJan 9, 2015 · Eratosthenes was a Greek scientific writer, astronomer, and poet, who is credited with making the first approximation of the size of the Earth for which any details are know. ... Given these estimations, …
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WebJul 29, 2024 · Ancient Greeks made some of the most impressive astronomical discoveries in history, including when Eratosthenes calculated the circumference of the Earth. But … WebThe issue is where the center of the circle of the horizon is located. It is simple to observe the depression of the horizon, I.e. the center is below the observer, and this can be used to estimate the circumference of the earth, and was so used by Muslim astronomers to confirm the findings of the Greeks and Hindus many years before. koss td 65 headphones
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http://www.geo.hunter.cuny.edu/~jochen/gtech201/lectures/lec6concepts/Datums/Determining%20the%20earths%20size.htm WebApr 2, 2024 · Eratosthenes, in full Eratosthenes of Cyrene, (born c. 276 bce, Cyrene, Libya—died c. 194 bce, Alexandria, Egypt), Greek scientific … Webestimation techniques in the presence of singularities. Measuring the Earth - Dec 17 2024 "A biography of ancient Greek mathematician Eratosthenes, who used geometry to calculate the circumference of the earth. He is also known as the Father of Geography"--Provided by publisher. Geometry for College Students - Dec 29 2024 koss thunder bay