WebFeb 3, 2024 · So in other words, 5000 stades along the circumference of the Earth was equal to 7.2 degrees of arc along the circumference of the Earth. And because 7.2 degrees is equal to 1/50th of a full sphere … WebMay 28, 2024 · This means that you have moved 30 degrees around the Sphere (Earth) in those 400 miles. Well, since there are 360 degrees in a circle and 30/360 = 1/12, then 400 must be 1/12th of the total circumference of the Earth. So the circumference of the Earth is 12 * 400 or 4800 miles. Now take note: these numbers are made up and do not reflect ...
How Did the Ancient Greeks Measure the Circumference …
WebJul 29, 2024 · The idea of a spherical Earth was already known by Pythagoras around 500 BC and validated by Aristotle a few centuries later. If the Ancient Greeks before him were right, and the Earth was a sphere, Eratosthenes could use his observations to calculate … WebOver 2000 years ago, the Greek scholar Eratosthenes estimated Earth's circumference by assuming that the Sun's rays were parallel. He chose a day when the Sun shone straight down into a well in the city of Syene. At noon, he measured the angle the Sun's rays made with a vertical stick in the city of Alexandria. new truff product
How Long Is a Stade? - Mathematical Association of America
WebEratosthenes (c. 276 – c. 194/195 BC), a Greek mathematician who calculated the circumference of the Earth and also the distance from the Earth to the Sun. Hipparchus (c. 190 – c. 120 BC), a Greek … WebJun 19, 2012 · 240 B.C.: Greek astronomer, geographer, mathematician and librarian Eratosthenes calculates the Earth's circumference. His data was rough, but he wasn't far off. Eratosthenes was an all-around guy ... WebApr 2, 2024 · Eratosthenes, in full Eratosthenes of Cyrene, (born c. 276 bce, Cyrene, Libya—died c. 194 bce, Alexandria, Egypt), Greek scientific writer, astronomer, and poet, who made the first measurement of the … new truly\u0027s