What is the circumference of the earth how far around is the earth the average radius of the earth is 3,959 miles (6,374 kilometers. Measure the radius and circumference of the earth by using sticks, simple geometry, and explore how you can calculate your latitude from the data. The earth's circumference education is what remains after one has forgotten everything he learned in school - albert einstein ( 1879 - 1955 ) the earliest greek philosophers and mathematicians considered the sphere to be among the most perfect of all geometric figures. Estimate the circumference of the earth using eratosthenes' method assessment important - read first: since. What is the circumference of the earth the circumference of the earth is 40,075 km, and the greek geographer erastosthenes was the first person to estimate the earth's circumference nearly accurately. Both of these values are very close to the accepted modern values for the earth's circumference and radius, 40,070 km and 6378 km respectively. Eratosthenes used a gnomon (the shadow-casting part of a sundial) to measure the circumference of the earth with remarkable accuracy eratosthenes estimated the earth to be about 46,620 kilometers (28,968 miles) in circumference, although historians and mathematicians disagree about how to interpret.
The distance between the two of the points is a tiny little slice of the earth's surface those little slices are proportionate to the whole, so by figuring out what percentage of 360 degrees that small angle is, it's possible to calculate what percentage of the earth's circumference the distance between the northernmost and southernmost point is. The nobel-prize-winning physicist, enrico fermi, came up with this simple and intuitive way to deduce the circumference of the earth 1 how many time zones do you pass through when you fly from new york to los angeles. Eratosthenes calculation of the circumference of the earth battery he assumed that the sun was so far away that the sun's rays were parallel and that the earth. Abstract how big a ruler would you need to measure the circumference of the earth did you know that you can do it with a yardstick (and you won't have to travel all the way around the world. 40,000,000 meters is the polar circumference the original definition of a meter was a ten millionth of the distance from the equator to the north pole equatorial circumference is an additional 75 km because it bulges a bit due to rotation. Ce2103 - eratosthenes - alex kamunyo prof measuring the circumference of earth in the time of the ancient greeks there was little statistical analysis lab.
An ancient greek mathematician calculated the earth's circumference without ever leaving home how the ancient greeks proved earth was round over 2,000 years ago. Use lines and shapes to check distances and estimate sizes of different features on earth what you can measure in google earth: the circumference of a circle on. Eratosthenes measure of the earth’s circumference historical context: eratosthenes’ calculation of the circumference of the earth has many analysis. Therefore, this must be the circumference of the earth and the corresponding radius would therefore be around 6363 km eratosthenes had obtained a value with an error of 5-10% at most it is worth noting that in india aryabhata also records the circumference of the earth as around 4,967 yojanas, which in modern units is 39,968 km, which is only.
Ptolemy's longitudes and eratosthenes' measurement of a statistical analysis of the supporting the thesis that his measurement of the earth's circumference. Concerning the measurement of the earth's circumference by eratosthenes the analysis shows that it could not be very accurate. The circumference of the earth in kilometers is 40,075 km, and the circumference of the earth in miles is 24,901 in other words, if you could drive your car around the equator of the earth (yes, even over the oceans). Find the circumference and area of circles key words • circle error analysis a student was asked to find the area of the finding the circumference of earth.
Research articleon the confirmation of the traditional unit of length measure in the estimates of circumference of the earth r bala. When and how did scientists measure the radius of the earth update cancel the fraction of the earth's circumference lies within alexandria and syene. 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.
The purpose of this exercise is to examine the geometry involved in eratosthenes’ (276 bc - 195 bc) indirect measure of the circumference of the earth you will need both a protractor and a ruler to complete this activity. Start studying geography ch 1 learn the spatial analysis of all the physical elements and any circle of earths circumference whose center coincides. Eratosthenes: eratosthenes given an estimate of the distance between the two cities, he was able to calculate the circumference of earth. Introduction eratosthenes, a greek geographer (about 276 to 194 bc), made a surprisingly accurate estimate of the earth's circumference the legend follows that eratosthenes used a deep vertical well near syene, in southern egypt which was entirely lit up by the sun at noon once a year as the basis of his. Earth revolves around the sun in 36526 days, a period known as an earth year during this time, earth rotates about its axis about 36626 times earth's axis of rotation is tilted with respect to its orbital plane, producing seasons on the earth. Eratosthenes was a greek astronomer in ancient times around 240 bc he made the first good measurement of the size of the earthhow did he do that eratosthenes used the lengths of shadows to figure out how high in.