Greek estimate of earth's circumference
WebIn the third century BCE, Eratosthenes, a Greek librarian in Alexandria, Egypt, determined the earth's circumference to be 40,250 to 45,900 kilometers (25,000 to 28,500 miles) by comparing the Sun's relative … WebIf we accept the account of Strabo that Eratosthenes measured the circumference of the earth as 252,000 stadia, the circumference would be 24,662 miles, and the polar …
Greek estimate of earth's circumference
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WebEratosthenes reasoned that the ratio of the angular difference in the shadows to the number of degrees in a circle (360°) must equal the ratio of the distance to the circumference of … 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 …
WebJun 8, 2024 · Mathematicians of his time had estimated Earth’s circumference to be “400,000 stadia”, or 62,880-66,680km (39,000 … WebOct 31, 2024 · The Earth’s circumference was first accurately measured more than 2,200 years ago by a Greek astronomer named Eratosthenes. Eratosthenes method was very …
WebThroughout history, the shape of the Earth has been debated by scientists and philosophers. By 500 B.C. most scholars thought the Earth was completely spherical. The Greek philosopher Aristotle (384-322 B.C.) is credited as the first person to try and calculate the size of the Earth by determining its circumference (the length around the equator) … WebGreek astronomer who discovered and proposed that planets (including Earth) revolved around the sun Eratosthenes Greek mathematician, astronomer, and geographer who devised a map of the world, estimated the circumference of the earth and the distance to the moon and the sun, and constructed a method for finding prime numbers; his …
WebJune, ca. 240 B.C. Eratosthenes Measures the Earth. By around 500 B.C., most ancient Greeks believed that Earth was round, not flat. But they had no idea how big the planet is until about 240 B.C., when Eratosthenes …
Webthis means he found that the circumference of the earth was 250,000 stadia, according to Cleomedes, but Strabo says that it was 252,000 stadia. A dis ... The Greek stadium was 606·75 ft., diaper for 12 year oldWebA stade was an ancient Greek unit of measurement (150-200 meters). He also assumed that Syene was due south of Alexandria and on the same meridian of longitude. ... He … diaper for 12 year old boyWebThen the number of sectors to make a complete circle would be 360/7.2 = 50. The circumference of the Earth would then be 50 times the overland distance between … citibank online home depot credit cardWebMay 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 ... citibank online home depot loginWebDec 19, 2013 · Harilal Krishna. Advertisement. Eratosthenes Eratosthenes, a Greek Mathematician, lived in Alexandria, Egypt, in the third century BC. Born 276 BC Cyrene Died 194 BC Alexandria Ethnicity Greek … diaper for 14 year oldWebApr 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 … citibank online hk loginWebOct 8, 2012 · In 200 BCE, after all, Eratosthenes calculated the circumference of the earth to within one percent of its actual girth. He figured that one degree of latitude was equal to 59.5 nautical miles. diaper for 4 month baby