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you must think that the sun's rays are parallel and never touching, therefore all create the same angle.

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Q: What assumption must be made about the suns rays if you use eratosthenes method for determining the circumference of a large sphere?
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What assumption must be made about the sun's rays if you use Eratosthenes' method for determining the circumference of a large sphere?

The sun's rays are parallel


Did the roman culture compute the circumference of earth?

No, that calculation was performed by Eratosthenes the Greek, as he worked in the Pharaoh's library at Alexandria, Egypt, using figures supplied by the Pharaoh's geometers. This would have been just a few centuries after the founding of the City of Rome, before it had grown into an empire. Eratosthenes worked out the method for determining earth's circumference after reading ancient Egyptian texts concerning the shadow cast in a well in Cyene, an Egyptian city on the Tropic of Cancer, at noon on the summer solstice.


What date was Sieve Eratosthenes born?

About 276 BC Eratosthenes was a Greek mathematician who is credited with a simple method of making a list of as many primes as you wish. His method is known as the Sieve of Eratosthenes.


What is the name of Eratosthenes' method of finding composite numbers?

Eratosthenes' method of finding prime and composite number is called 'The Sieve of Eratosthene'.


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.


What is the name of Eratosthenes method of finding prime numbers?

It is called a sieve.


Eratosthenes determined the circumference of Earth by conducting an experiment. Put his steps in order as they correlate to the scientific method?

Conduct an Experiment, Make observations, Draw Conclusions


Who device the method that will separate prime from a set of whole numbers?

Eratosthenes created a sieve that will do that.


How did Eratosthenes know the Earth was round?

Eratosthenes' method requires that one know or determine the vertical angle of the sun above the horizon or from the zenith (a point directly overhead) at solar noon at two locations along the same line of longitude. The distance between the two locations must also be known.


What is a key of assumption of scientific method?

Predictability


Is not an assumption that is critical to the Scientific Method?

Empiricality


Which of the following is not an assumption that is to the scientific method?

Empiricality