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Eratosthenes of Cyrene using shadows at two different places in Egypt. An amazing achievement for those times (about 200-250BC)
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What is Eratosthenes?
He was an ancient Greek mathematician of the 2nd/3rd century BC, as well as a poet, geographer, musical composer, scholar, and astronomer. He was the first Greek to estimate the circumference and tilt of the earth. He created a map of the earth based on the knowledge available at the time. He was highly respected, and his calculations of the earth's circumference were used for hundreds of years. Today, his method for finding prime numbers from 1-100 is known as the 'Sieve of Eratosthenes' and is taught in math textbooks.
Who was the first person to mesure the earth's circumference?
The first person credited with measuring the Earth's circumference was the ancient Greek mathematician and astronomer Eratosthenes. He used the angle of the shadow cast by a vertical stick in Syene and Alexandria to estimate the Earth's size with impressive accuracy for his time.
Who was first mathematician to have measured the circumference of the earth?
Eratosthenes of Cyrene using shadows at two different places in Egypt. An amazing achievement for those times (about 200-250BC)
Who first accurately calculated the circumference of the Earth?
Eratothsenes Follow the link to his very cool projectThe Ancient Greeks - and they got it right, which was more than Columbus did!The Greek mathematician Eratosthenes calculated the circumference of the Earth fairly accurately over 2300 years ago!Eratosthenes was the first person to do this. He measured the distance netween two points and the different angles mad by the Sun - and worked out from these. His result was surprisingly accurate.
Who was the first person to calculate the earth circumference?
The first person credited with accurately calculating the Earth's circumference was the ancient Greek mathematician and astronomer Eratosthenes in the 3rd century BC. He did so by measuring the angle of the sun's rays at two different locations and using simple geometry to estimate the Earth's size.
When was the the circumference of the Earth first measured and by who?
One possible person is Eratosthenes of Cyrene ~230 BC as he was a Greek scientist who calculated the circumference of the Earth, with remarkable accuracy (some values for the "stadia" he used gives a result within 6% of the actual polar circumference). See link for further information
Who is Akimedies?
he is the first mathematician to every live on this earth
Is it true or false that the Greek Eratosthenes is known for his calculation of the earths weight?
False. Eratosthenes was a Greek mathematician and astronomer known for his calculation of the Earth's circumference, not its weight.
What are facts on Eratosthenes?
Eratosthenes was a Greek mathematician and astronomer, named chief of the Library of Alexandria. He is recognized as the first person that calculated the circumference of Earth, he did it by his own rudimentary means and the results were quite accurate.
Who first estimated the circumference of the Earth?
erathosthenes was the first ,
Who discovered the earths curcumference?
The Greek mathematician and astronomer Eratosthenes is credited with calculating the Earth's circumference around 240 B.C. using the angle of the sun's rays at two different locations and the distance between those locations. This method provided a reasonably accurate estimate of the Earth's size.
Who were the first people to calculate the size of the Earth and the Earth-Moon distance?
The first people to calculate the size of the Earth and the Earth-Moon distance were the ancient Greek mathematician and astronomer, Eratosthenes, and the ancient Greek astronomer and mathematician, Hipparchus.
