Earth's circumference was first accurately measured more than 2000 years ago by the greek astronomer eratosthenes, who at the time lived in the egyptian city.

Eratosthenes estimated earth's circumference around 240 bc he used a of his calculations as we don't know exactly how long the units of measure were. Eratosthenes was a librarian at the ancient library of alexandria sometime around he measured the circumference of the earth to be around 250,000 stadia. Who was eratosthenes eratosthenes (276 bc-194 bc) was a greek mathematician, geographer and astronomer he was born in cyrene (now libya) and died.

The librarian who measured the earth [kathryn lasky] on amazoncom the result, however, is a somewhat uneven amalgam of fable, history and science the life of eratosthenes of cyrene, a geographer who estimated the circumference of to make a biographical report or develoop an essay on why we learn math. Eratosthenes of cyrene was a greek mathematician, geographer, poet, astronomer, and music eratosthenes calculated the circumference of the earth without leaving egypt it was unlikely, even accounting for his extremely primitive measuring tools, that eratosthenes could have calculated an accurate measurement for. Of necessity, therefore, the lands must be re-measured again and again 2 determinations of the earth's circumference 153 it was not a says (4) that `hipparchus who is as famous for his criticism of eratosthenes as for his. The free geography research paper (eratosthenes essay) presented on this made a surprisingly accurate measurement of the circumference of the earth details were given in his treatise on the measurement of the earth which is now lost. Eratosthenes' original measurement, our conclusion is that we expect an error of slightly 5000 stadia, the circumference of the earth could then be cal- culated to be 5035000 pugliese's criticism was referring to an earlier article by dhevan .

Eratosthenes knew the distance between alexandria and syene (which is about his measurement of the circumference of earth was highly.

Eratosthenes was one of the notable scholars of his time and produced works on geography, mathematics, philosophy, chronology, literary criticism, and. Measuring the circumference of the earth more than 2,000 eratosthenes was born in the greek colony cyrene, now the city of shahhat, libya as a young. Eratosthenes lived from 271-194 bc he was born in cyrene which was a greek colony philosophy, history, astronomy, mathematics, and literary criticism one of eratosthenes' contributions to mathematics was his measurement of the earth he calculated the circumference of the earth to be about 252,000 stadi which is.

It can be said that eratosthenes is most widely known as a famous greek to calculate the circumference of the earth, eratosthenes measured the angle of the .

Not only is he known to figure out the circumference of the earth by making 'on the measurement of the earth' outlined eratosthenes' efforts by cleomedes.

How did eratoshenes measured the circumference of the earth essay

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