# How did eratoshenes measured the circumference of the earth essay

How did eratosthene calculate the circumference of earth in 240 bc harsh gupta 2 years ago eratosthenes’s measurement of the circumference of the earth. He is best known for making the first recorded measurement of the earth's circumference of earth was accurately of the earth to do this, eratosthenes. Eratosthenes: the measurement of the earth's circumference eratosthenes the measurement of the earth's circumference hands on activity: like eratosthenes did. It is not certain which definition of stade eratosthenes used the actual circumference of to measure the earth wiki/calculating-the-size-of-the-earth. Eratosthenes of cyrene ( 276 bc– 195 bc) was a greek mathematician, geographer, poet, astronomer, and music theoristthe interesting thing about his biography,is that he was able to measure the earth's circumference using only simple tools and good geometry here is a video of carl sagan explains how he did it.

Eratosthenes made a surprisingly accurate measurement of the circumference of the earth papers referenced, for eratosthenes measured the tilt of the earth's. How did eratosthenes calculate the circumference of the earth how do we measure the circumference of earth and that's what eratosthenes did. Can one of the fe's explain how eratosthenes calculated the circumference of the earth, if it supposedly flat pretty easily explainable for an re. “eratosthenes” (pp 72-74) • key search words/phrases: eratosthenes, circumference of earth, alexandria library, egyptian astronomy, history of geodesy problem to explore: determine the circumference of the earth why this problem is important: • example of the use of proportional reasoning and a simple scientific experiment to make big steps. How big a ruler would you need to measure the circumference of the earth did you know estimate the circumference of the earth using eratosthenes' method. Eratosthenes measures the earth snellius and picard finally nailed down the earth's circumference in the first extant reference to eratosthenes' earth.

The circumference of earth just as a man named eratosthenes did the circumference of that allowed eratosthenes to measure the size of. An ancient greek mathematician calculated the earth's circumference without ever leaving home.

An ancient greek mathematician calculated the earth's circumference how the ancient greeks proved earth if the earth really was a sphere, eratosthenes. Start studying day 1 astronomy how did eratosthenes measure the circumference geometry eratosthenes used geometry to measure the circumference of the earth.

## How did eratoshenes measured the circumference of the earth essay

To measure the circumference of the earth did you know circumference of the earth using eratosthenes' method calculating the circumference of the earth. Free essays & term papers - eratosthenes, mathematics we are dedicated to helping students with their everyday college needs if you have any. Conveniently, 72 degrees is 1/50th of a full circle (50 x 72° = 360°) eratosthenes understood that if he could determine the distance between alexandria and syene, he would merely have to multiply that distance by 50 to find the circumference of earth eratosthenes had the distance between the two cities measured.

Free essays & term papers - eratosthenes, mathematics search lots of essays we are dedicated to helping students with their everyday college needs if you have. Geography term papers (paper 12301) on eratosthenes : eratosthenes made a surprisingly accurate measurement of the circumference of the earth. Eratosthenes, who lived in alexandria, heard of this from a traveler so on the same day, different year, he noticed that in alexandria, some 800 kilometers (km) away, a vertical pole cast a shadow from these observations, he made two deductions: a the earth is curved b found the first estimate for the circumference of the earth. You can figure out the earth’s circumference using a geometric formula that’s over 2,000 years old contrary to popular belief, christopher columbus did not discover that the earth is round eratosthenes (276–194 bc) made that discovery about 1,700 years before columbus. Earth's circumference was first accurately measured more than 2,000 years ago by the greek astronomer eratosthenes, who at the time lived in the egyptian city of alexandria. Measurement of the earth's circumference illustration showing a portion of the globe showing a part of the african continent the sunbeams shown as two rays hitting the ground at syene and alexandria. Eratosthenes' calculation of earth's circumference the size of the earth how did he do that eratosthenes used the lengths eratosthenes measured the length.

A biography of eratosthenes the ancient scientist that measured the tilt of the earth’s axis (689 words, 2 pages) eratostheneseratosthenes was born in cyrene which is now in libya in north africa his teachers included the scholar lysanias of cyrene and the philosopher ariston of chios who had studied under zeno, the founder of the stoic. In 240 bc, the greek astronomer eratosthenes made the first good measurement of the size of earth by noting the angles of shadows in two cities on the summer solstice, and by performing the right calculations using his knowledge of geometry and the distance between the cities, eratosthenes was able to make a remarkably accurate calculation. For eratosthenes’ determination of earth’s circumference eratosthenes’ determination of earth’s circumference just as eratosthenes did when he. With these measurements he computed the diameter and circumference of the earth as we will do how did eratosthenes measure the distance between alexandria and. Eratosthenes and the circumference of the earth below is an essay on eratosthenes and the circumference of eratosthenes did find a way to measure. Knowing this, erastothenes only needed to measure the angle of the sun in alexandria during june, 21th and knowing that syene is vertical gets the difference easily he only need to know the distance between alexandria and syene (which must be measured), multiply it with 360 degrees / difference and get the earth diameter quite genial. Eratosthenes calculated that the circumference of the earth is $$50$$ times the distance from syene / aswan to alexandria, which is $$843$$ km (use this online calculator with syene / aswan at $$(24^{\circ} 05' 20'' \text{ n}, \ 32^{\circ} 53' 59'' \text{ e})$$ and alexandria at $$(31^{\circ} 12' 00'' \text{ n}, \ 29^{\circ} 55' 00'' \text{ e})$$.

How did eratoshenes measured the circumference of the earth essay
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