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erathosthenes was the first ,

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Q: Who first estimated the circumference of the Earth?
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Greek scholar that estimated the earth's circumference?

Eratosthenes


In ancient Greece who estimated the earths circumference?

Eratosthenes is credited with calclating the circumference of the Earth at the equivalent of 25,000 miles/40,000km in about 205 BCE.


Who was the first person to calculate the earth circumference?

Eratosthenes


What is the estimated circumference of a circle if the diameter is 15ft?

A circumference of 47.12 feet.


When was earth diameter first estimated?

Eratosthenes of Cyrene (276 BC - 194 BC) was a Greek mathematician, poet, athlete, geographer and astronomer. He made several remarkable discoveries and inventions: he devised a system of latitude and longitude. He was the first person to calculate the circumference of the Earth with remarkable accuracy, and the tilt of the earth's axis.


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 size of Earth?

The size of the Earth is measure in parameters generally, and it is estimated and believed to be measured at around over 40,000km in circumference, and over 500 million km squared in terms of surface area.


How many times larger is the earth's circumference's than Luna?

The Earth is 3.64 times larger than Moon's Circumference. (Earth's Circumference) 39,843 divide by (Moon's Circumference) 10,921=3.64


Where is Earth's circumfrence greatest?

The circumference of Venus is very nearly the same as the Earth's. The Earth has a circumference of about 40,000 km while Venus has 38,000 km, making Venus' circumference about 95% the circumference of the Earth.


Who discovered the earths curcumference?

Eratosthenes was the first to measure the Earth's circumference pretty acurately.


What is the estimated circumference of a circle with a radius of 4 miles?

A circle with a radius of 4 miles has a circumference of 25.13 miles.


Does the circumference of the earth remain constant?

Essentially, yes. The earth accumulates cosmic dust, meteorites and the occasional comet, but not at a rate significant enough to appreciably change the earth's circumference. The sinking of heavy rock, such as caused by the recent 8.8 magnitude earthquake in Chile also does not measureably change the earth's circumference. Some scientists estimated earth's rotational velocity may have accelerated as much as a millionth of a second per day from that earthquake, however. The motion of the continental plates about earth's surface does not appreciably affect earth's circumference either. These plates move about on a half billion year cycle known as the Wilson Cycle.