Greek estimate of earth's circumference

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August undefined, 2024

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 … WebEratosthenes assumed that the distance from. Over 2000 years ago, the Greek scholar Eratosthenes estimated Earth’s circumference by assuming that the Sun’s rays are 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 ...

How Eratosthenes calculated the Earth

WebA 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 … http://www.geo.hunter.cuny.edu/~jochen/gtech201/lectures/lec6concepts/Datums/Determining%20the%20earths%20size.htm check website legitimacy

Eratosthenes

WebApr 25, 2024 · The circumference of the Earth is 40,075 km, and the Greek geographer Erastosthenes was the first person to estimate the Earth's circumference nearly … 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. WebStudy with Quizlet and memorize flashcards containing terms like Which of the following individuals estimated the circumference of the earth and the distance to the sun and the moon? a. Archimedes b. Eratosthenes c. Aristarchus d. Euclid, Traders were part of the _____ class. a. noble c. lower b. upper d. middle, The Hellenistic Age was a time of great … check website loading time

Answered: Over 2000 years ago, the Greek scholar… bartleby

Eratosthenes Biography, Discoveries, Sieve, & Facts

WebThen he could measure the angular distance in the sky between the Sun and the Moon, plus the Earth-Moon distance and geometry, to get the Earth-Sun distance. The most famous ancient estimate of the earth's circumference as made by Eratosthenes of Cyrene (c. 276-196 BCE), the librarian at the great library at Alexandria. 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 … check website load speedWebFeb 15, 2024 · The first known person to calculate the circumference of the earth was the Greek astronomer Eratosthenes (as the legend goes, without leaving Egypt), during his lifetime between the 3rd and 2nd ... flats to rent in westerhope

"WebOct 31, 2024 · Facts you need to know The Earth’s circumference was first accurately measured more than 2,200 years ago by a Greek astronomer named Eratosthenes. … " - Greek estimate of earth's circumference

Greek estimate of earth's circumference

$Eratosthenes Measures the Earth – The Math Doctors$

WebAbu Rayhan al-Biruni (AD 973--1048) The 11th century Persian mathematician Abu Rayhan al-Biruni used simple trigonometric results to estimate the radius and circumference of the Earth. This content is … WebSee Answer. Question: 1.Eratosthenes was a Greek writer and astronomer who estimated the circumference of the Earth using the ideas in 1, 2, 3 above. He noticed that, at noon on summer solstice in a place called Syene, the sun’s rays went directly down a well. At the same time, in Alexandria, the sun cast a shadow of 7.5 off a vertical object.

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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 … 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 …

WebDec 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 … WebDec 10, 2016 · Today, we know that the equatorial circumference of Earth is 40,075.017 km (24,901.461 mi). If Eratosthenes used the Olympic stadion of 176.4 meters (579 feet), which would imply a circumference of …

WebA 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 also estimated the circumference of the … WebA century after Eratosthenes, the Greek astronomer Posidonius of Rhodes (c. 135–51 BCE) calculated the Earth’s circumference. Posidonius used the star Canopus as frame of reference: when the star is visible at the horizon in Rhodes, it is 7.5 degrees above the …

WebSep 7, 2024 · Calculate the circumference of the Earth using this equation: Circumference = 360 x distance between your city and the equator / angle of shadow that you …

WebHipparchus (c. 190 – c. 120 BC), a Greek mathematician who measured the radii of the Sun and the Moon as well as their distances from the Earth. Posidonius ( c. 135 – c. 51 BC ), a Greek astronomer and mathematician … flats to rent in westeringWebConveniently, 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 … check website meta descriptionWebThe goal of this project is to estimate the circumference of the earth by setting up a mathematical proportion from simple measurements. Introduction In this project, you will estimate the circumference of the earth, using a method developed about 2,200 years ago, by Eratosthenes, a Greek mathematician and the librarian of the great library at ... flats to rent in westcliff on seaWebJan 14, 2024 · The distance between the two cities was about 5,000 stadia (500 mi), and Eratosthenes concluded that if one-fiftieth of the circumference was 5,000 stadia, then the full circle was 250,000 stadia … check website made in which languageWebJul 29, 2024 · He could then use simple proportions to find the Earth’s circumference—7.2 degrees is 1/50 of 360 degrees, so 800 times 50 equals 40,000 kilometers. And just like … flats to rent in welwyn garden city hertsWebOne day, you learn that on the equinox your sun is directly overhead in the city of Tyene, located 400 kilometers due north of you. On the equinox, you go outside in Alectown and observe that the altitude of your sun is 87 ∘. What is the circumference of Tirth? circumference of Tirth = 4.8×104 km. flats to rent in west end southamptonWebThe resulting estimate, about 25,000 miles (40,234 km), is astonishingly accurate. In making his calculations Eratosthenes measured distance in stadia, a unit of measure … check website malware online