Eratosthenes to measure earth's circumference

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WebEratosthenes will always be remembered for the calculation of the Earth's circumference circa 240 BC, using trigonometry and knowledge of the angle of elevation of the Sun at … WebAug 5, 2015 · Some 2,200 years ago, Eratosthenes calculated the radius of the Earth. A brief recap. Plant a stick in the ground vertically, and wait until the sun is directly above the stick, that is until there is no shadow cast (or as is said to be the case historically, stand at the bottom of a very deep well in Syene and see the sun perfectly above you).. If at the …

Eratosthenes Calculates the Circumference of the Earth

WebApr 18, 2024 · When Eratosthenes measured the Earth's circumference, he provided 250, 000 stadia as its measure equal to about 25, 000 miles. Since the radian is a … WebEratosthenes measure of Earth circumference: Image title: Illustration of the method Eratosthenes used to calculate the circumference of the Earth by CMG Lee. The map and globe are derived from … bungie destiny 2 downtime

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WebDec 27, 2024 · Eratosthenes hired a man to pace the distance between the two cities and learned they were 5,000 stadia apart, which is about 800 kilometers. He could then use simple proportions to find the Earth... WebMay 28, 2024 · 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 … Webis derived from ERATOSTHENES, is a deduction from an observed difference in latitude of 5 % 0 or 5 5/1 0, taken in conjunction with ERATOSTHENES' measure of the circumference, 250,000 or 252,000 stades.8 POSIDONIUS would, in this case, be assert-ing a measurement of the circumference (180,000 3 STRABO, P. 125 CAS.: "The … bungie day 2022 shield pin

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Eratosthenes - Measuring the Circumference of the Earth …

WebMar 26, 2016 · Eratosthenes divided 360° by 7.2° and got 50, which told him that the distance between Alexandria and Syene (500 miles) was 1/50 of the total distance around the Earth. So he multiplied 500 by 50 to arrive at his estimate of the Earth's circumference: 25,000 miles. This estimate was only 100 miles off the actual circumference of 24,900 … WebFeb 28, 2011 · But no one knew for sure how big this sphere was. It took a curious and ingenious librarian named Eratosthenes to discover a remarkably simple method for measuring the circumference of the earth. Over 2,000 years ago the Greek geographer Eratosthenes (circa 276 to 194 B.C.), made a remarkably accurate measurement of the … bungie destiny 2 enable crossplay chatWebAt around 200 BC, Eratosthenes (c. 276 BC - c. 197 BC) determined the circumference of Earth with remarkable accuracy. As related accomplishments, he also demon-strated … bungie customer service phone number

"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 diameter 7,850 miles-only 50 ... " - Eratosthenes to measure earth's circumference

Eratosthenes to measure earth's circumference

Eratosthenes: The Measurement of the Earth

WebSep 4, 2024 · Eratosthenes knew that the distance between Syene and Alexandria was 7.2 degrees along the surface of the earth. So how many of those distances would he need … WebApr 5, 2013 · An illustration showing Greek scientist Eratosthenes' method for calculating the circumference of the Earth. By measuring the angle of a shadow in one location …

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WebEarth's circumference is the distance around Earth.. Measurement of Earth's circumference has been important to navigation since ancient times. The first known scientific measurement and calculation was done … http://galileo.phys.virginia.edu/classes/609.ral5q.fall04/LecturePDF/L04-MEASURINGTHESOLARSYSTEM.pdf

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) … WebBecause seven degrees is about one 50th of a full circle (360 degrees), Eratosthenes simply multiplied the distance from Alexandria to Syene -- believed to have been about 515 miles (830 km) -- by 50. He calculated Earth's circumference at 26,000 miles (42,000 km), only five percent away from the modern accepted value of 24,901 miles (40,074 km).

http://www.classichistory.net/archives/eratosthenes-circumference-of-earth WebEratosthenes of Cyrene (/ ɛr ə ˈ t ɒ s θ ə n iː z /; Greek: Ἐρατοσθένης [eratostʰénɛːs]; c. 276 BC – c. 195/194 BC) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist.He was a man of learning, becoming the chief librarian at the Library of Alexandria.His work is comparable to what is now known as the study of …

WebJan 9, 2015 · Eratosthenes was able to calculate the circumference of the Earth to be 250,000 stadia. The length of one stadia is not exactly …

WebThe circumference of the Earth around the poles is now measured at around 40,008 km. Eratosthenes result is not bad at all. Very interesting is that the measurement of the distance between Alexandria and Syene is based on the estimated average speed of a caravan of camels that traveled this distance (!). bungie destinypc screenshotsWebApr 8, 2024 · Born in the ancient city of Libya, Eratosthenes of Cyrene (276 BC-194 BC) was able to calculate the diameter and circumference of the Earth without the help of high-tech tools. He was a ... bungie destiny 2 server twitterWebEratosthenes Earth Measurement. Eratosthenes of Alexandria (appointed Director of the Great Library at Alexandria in 236 B.C.) was an innovator in measurement. Not only did he create a prime number … bungie destiny crossplayWebA New Perspective on Eratosthenes' Measurement of the Earth. Brown, Ronald A.; Kumar, Alok. Physics Teacher, v49 n7 p445-447 Oct 2011. Around 240 B.C., Eratosthenes made what is considered to be the most famous and accurate of the ancient measurements of the circumference of the Earth. It was accomplished by making "presumably … bungie destiny 2 servers downWebJul 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 a … bungie destiny 2 showcaseWebJan 9, 2015 · Compared to today's accepted measurement of the Earth's circumference of 24,901 miles, Eratosthenes' calculation is off by less than 1%. Calculating the circumference of the Earth to within 100 miles … bungie destiny 2 maintenance scheduleWebThe 185 meter stade, as claimed by Rawlins earlier, is the most commonly accepted value for the length of the stade used by Eratosthenes in his measurements of the Earth. This is so because a great number of authors from the first century CE onward make reference to the fact that 1 Roman mile is equal to 8 stades. bungie download