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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.
How did Eratosthenes estimate the size of Earth in 240 BC?
Eratosthenes estimated the size of Earth in 240 BC by comparing the angles of the shadows cast by sticks in two different cities on the same day. By calculating the difference in the angles, he was able to determine the circumference of the Earth with impressive accuracy for the time period.
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.
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.
What beliefs about earth and the heavens were proved by the discoveries of Aristarchus and Eratosthenes?
that the earth was not flat nor square but it was round
Who made the first attempt to determine the size of the earth?
Eratosthenes
What did Eratosthenes determine?
He postulated the circumference of the earth.
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.
In 250 BC who determined the size of the earth?
Eratosthenes
How did Eratosthenes determined the size of the Earth?
The used an orange
The first accurate measurement of the size of Earth was made by .?
Eratosthenes
Who said that the earth is a sphere?
Columbus said the earth was sphere when he traveled to America
How did Eratosthenes estimate the size of Earth in 240 BC?
Eratosthenes estimated the size of Earth in 240 BC by comparing the angles of the shadows cast by sticks in two different cities on the same day. By calculating the difference in the angles, he was able to determine the circumference of the Earth with impressive accuracy for the time period.
Does Eratosthenes determine Earth's diameter?
Yes, Eratosthenes estimated the Earth's diameter using the angle of the sun's rays at two different locations on the same day. By measuring the difference in the angles, he was able to calculate the Earth's circumference and thus its diameter.
What describes how Eratosthenes discovered the approximate circumference of the earth?
Which of the following describes how Eratosthenes discovered the approximate circumference of the earth
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.
Who found circumference of earth?
Eratosthenes
