WebJul 29, 2024 · How Eratosthenes discovered the circumference of the Earth Born in Cyrene, an ancient Greek colony in modern-day Libya in 276 BC, Eratosthenes was … WebEarth's circumference is the distance around Earth. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). [1] Measurement of Earth's circumference has been important to navigation since ancient times.

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WebThe common Attic stadium was about 185 metres (607 feet), which would imply a circumference of 46,250 kilometres or 28,740 miles, which is 6,250 kilometres (3,880 miles) different from the currently accepted circumference of the Earth (40,000 kilometres or 25,000 miles). WebOct 22, 2024 · Note: The Earth is almost, but not quite, a perfect sphere. Its equatorial radius is 6378 km, but its polar radius is 6357 km - in other words, the Earth is slightly flattened. Eratosthenes was measuring the polar radius, and his value (using the 0.15 km/stadium conversion) lies between the polar and equatorial values. fanjoy clothes

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WebEratosthenes' method for measuring the circumference of the Earth (obviously, not to scale). Since there are 360 degrees in a circle, by dividing the central angle into 360, he could calculate how many similar sectors would be needed to complete a circle. He hired someone to measure the overland distance between the two cities. WebSep 4, 2024 · As it turns out, the meridional circumference of Earth (from pole to pole) is roughly 40,008 km, and the equatorial circumference is about 40,075 km (it's bigger at … WebMay 4, 2024 · How Eratosthenes Calculated the Circumference of The Earth How big are you, my Earth? About 200 years BC in ancient Greece, scientists in those days were … fanjoy team 10