Circumference of a earth

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August undefined, 2024

WebApr 28, 2024 · The Earth 's mean distance from the sun is approximately 150 million kilometers. The Earth's orbit is roughly circular. The circumference of a circle is given by the formula 2πr where r is the radius. So in the case of the Earth's orbit, it is roughly: 2π ⋅ 150 million km ≈ 940 million km Answer link WebConveniently, 7.2 degrees is 1/50th of a full circle ( 50 x 7.2° = 360° ). Eratosthenes understood that if he could determine the distance between Alexandria and Syene, he would merely have to multiply that distance by 50 to find the circumference of Earth! Here's where things get a bit tricky.

How did the Greeks Measure the Earth’s Circumference?

WebDec 14, 2024 · Determine the radius of a circle. Let's assume it's equal to 14 cm. Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm. … WebAnd so see how simple it was for us to get this. But notice that, according to our modern measurements, the average circumference of the Earth, because it's not a perfect … bing private browser app

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Web2 days ago · He then used simple proportions to find the Earth's circumference — 7.2 degrees is 1/50 of 360 degrees, so 800 times 50 equals 40,000 kilometres. And just like that, he found the circumference ... 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 … WebDec 27, 2024 · In the mid-20th century, we began launching satellites into space that would help us determine the exact circumference of the … bing private browsing mode

Eratosthenes - Wikipedia

WebAnswer (1 of 2): While you can get an approximation using the 2 x Pi x r formula mentioned elsewhere, this is true only for a perfect circle. The earth orbits the Sun in an elliptical orbit and thus Pi does not work. The way to calculate the perimeter of an ellipse is very complex - … WebMar 2, 2009 · The circumference of the Earth in kilometers is 40,075 km, and the circumference of the Earth in miles is 24,901. In other words, if you could drive your car … bing primary categoryWebPutting Eratosthenes result into modern units, his estimate of the circumference of the Earth is as follows: Circumference = 50 x 5000 stadia = 250,000 stadia 250,000 stadia x 185 meters/stadion = 46,250 kilometers. The modern measurement is 40,070 kilometers. Eratosthenes' estimate is only about 15% too large! bing private browser mode

"WebJul 1, 2006 · and the circumference of the earth is (1.15) (2*pi*3960)= 28661.3 naughtical miles? no ... (360 degrees) (60 NM per degree) = 21600 NM, the Earth's circumference in nautical miles. (1.15 statute miles per nautical mile) (21600 nautical miles) = approx 25000, the Earth's circumference in statute miles You must log in or register to reply here. " - Circumference of a earth

Circumference of a earth

WebHe knew that the circumference of Earth constituted a circle of 360 degrees, so 7.12 (or 7.2, to divide 360 evenly by 50) degrees would be about one-fiftieth of the circumference. He also knew the approximate distance between Alexandria and Syene, so … WebASK AN EXPERT. Science Earth Science The Earth has a circumference of approximately 40,075 kilometers. If you were to walk around the entire Earth at the …

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WebJun 8, 2024 · Aristotle not only taught that Earth was spherical but also mentioned early estimates of Earth’s circumference. Mathematicians of his time had estimated Earth’s … http://www.iciba.com/word?w=circumference

Web437 Likes, 12 Comments - 퐖퐞퐓퐡퐞퐀퐟퐠퐡퐚퐧퐬 (@wetheafghans) on Instagram: "1,000 years ago during Europe's Dark Ages, the muslim scientist Al-Biruni ... WebEquatorial Circumference. A measurement of the distance around the equator of Mars. About half (53.2%) that of Earth. Mars: 21,339 kilometers or 13,259 miles. Earth: 40,075 kilometers or ... *The reason that the …

WebIf we accept the account of Strabo that Eratosthenes measured the circum ference of the earth as 252,000 stadia, the circum ference would be 24,662 miles, and the polar diameter 7,850... WebJul 6, 2024 · Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). However, from pole to pole — the meridional circumference — Earth is only 24,860 miles ...

WebOct 4, 2024 · Credits: NASA. This article is part of the NASA Knows! (Grades 5-8) series. Earth is our home planet. Scientists believe Earth and its moon formed around the same time as the rest of the solar system. They think that was about 4.5 billion years ago. Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles.

WebWelcome to Calculating the Circumference of a Circle Given the Radius with Mr. J! Need help with how to calculate the circumference of a circle? You're in th... bing privacy mode on iphoneWebThe circumference of the Earth at the equator is 24,901.55 miles (40,066.59 kilometers). Due to the irregular, ellipsoid shape of the Earth, a line of longitude wrapped around the Earth going through the north and south poles is 24,859.82 miles (40,000 kilometers). bing private browsing historyWebApr 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 ... d5ns and lrWebApr 25, 2024 · With a circumference of 40,075 km, Earth is the fifth largest of the planets in the Solar System. The meridional circumference that is from pole to pole is 40,008 km. … bing private browsing downloadWebToday we know the circumference of the Earth is actually 24,901.461 miles. He is also credited with discovering the Sieve of Eratosthenes or discovering the Prime numbers. 8. Look at the “Isles of Scilly Disaster” link I’ve provided right beneath this page. In AT LEAST a good solid paragraph, give me your reaction to the information ... bing privacy statementWebJan 11, 2024 · How to Calculate the Circumference of Earth Earth is an oblate spheroid. Smart and educated people of the ancient world knew the earth was round. They knew it … bing private searchWebSep 4, 2024 · It therefore seems reasonable to conclude that the circumference of a circle is about 3.14 times its diameter or 6.28 times its radius. Figure 7.5.3: A regular polygon of 15 sides looks almost like a circle. Theorem 7.5.1. The circumference of a circle is π times its diameter or 2π times its radius, where π is approximately 3.14. bing privacy apps free