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That the earth was round, and calculated it's circumference to be 24,675 miles, relatively close to the actual figure.
To add to that, the actual figure is 24,901.55 miles (40,075.16 kilometers)
at the equator, but shorter from pole to pole, 24,859.82 miles (40,008 km).
This is because the earth is not exactly round, but has the shape of
oblate spheroid, or ellipsoid, or more properly, geoid (earth-like).
What else can I help you with?
The Greek geographer mathematician astronomer and poet who calculated the circumference of Earth was?
Eratosthenes
How did eratosthenes determine the size of the earth?
Eratosthenes determined the size of the Earth by measuring the angle of the shadow cast by a vertical stick in two different locations on the same day. By comparing the angles at the two locations and knowing the distance between them, he was able to calculate the Earth's circumference.
Who measured the size of the earth using a shadow stick and knowing the distance between two cities?
Eratosthenes, a Greek mathematician and astronomer, measured the size of the Earth using a shadow stick in the city of Alexandria and knowing the distance to the city of Syene. By observing the angle of the shadow at each location and using basic geometry, he was able to calculate the Earth's circumference.
Describe how eratosthenes measure the size of Earth?
Eratosthenes measured the size of Earth by using the Sun's angles, as well as a bit of geometry.
Ertaosthenes determined the circumference of earth by conducting an experiment what are the steps?
Eratosthenes calculated the Earth's circumference by measuring shadows at two different locations at the same time. He then used the angles of the shadows cast by a vertical stick to calculate the Earth's circumference using geometry and trigonometry. By comparing the shadow angles at two different locations, Eratosthenes was able to estimate the Earth's size accurately.
When was the latitude of the Arctic Circle determined?
The latitude of the Arctic Circle was determined around 300 B.C. by the Greek astronomer and mathematician Eratosthenes. He calculated it to be approximately 66.5 degrees north of the Equator.
What did astronomer eratosthenes dertermined?
to astronomically declare that the nuclear power-plants are failing.
The Greek geographer mathematician astronomer and poet who calculated the circumference of Earth was?
Eratosthenes
Did Eratosthenes have any offspring?
si eratosthenes ay isang Greek astronomer geographer, at isang mathematician. Siya ay nanggaling sa mars
In 250 BC who determined the size of the earth?
Eratosthenes
How did Eratosthenes determined the size of the Earth?
The used an orange
When did Eratosthenes live and die?
Eratosthenes was born in Cyrene, Shahhat, Libya in 276 BC and died in Alexandria, Egypt in 194 BC. He was an astronomer, mathematician, and geographer, who eventually became the chief librarian at the Library of Alexandria.
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.
What is the formula that Eratosthenes discovered?
Eratosthenes of Cyrene was a Greek mathematician, elegiac poet, athlete, geographer, and astronomer. He was the first person to calculate the circumference of the earth by using a measuring system using stades, or the length of stadiums during that time period, and the tilt of the earth's axis.
How long did Eratosthenes live?
Eratosthenes was a Greek astronomer and mathematician, he is considered the inventor of geography. In fact, he is credited as the first one that calculated the earth's circumference. He was born in the year 276 BC and died in the year 195 or 194 BC, thus, he lived 80 or 81 years.
Who is erastosthes?
Eratosthenes was a Greek mathematician, geographer, poet, and astronomer who lived in the third century BCE. He is best known for accurately calculating the circumference of the Earth using a method involving shadows and geometry. Eratosthenes also made significant contributions to astronomy, geography, and mathematics during his lifetime.
What astronomer determined that a pendulum could track the rotation of the earth?
That was Léon Foucault, in 1851.
