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1 What is the circumference of Earth in metres? - Quora
https://www.quora.com/What-is-the-circumference-of-Earth-in-metres
If you measure at the Equator, the Earth's Circumference is 24,901.55 miles (40,075.16 km). If you measure between the North and South Poles, the Earth's ...
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2 What is the circumference of the Earth, Calculation ... - Cuemath
https://www.cuemath.com/geometry/circumference-of-the-earth/
The circumference of the Earth depends on how it is measured. When it is measured around the equator, it is 40,075 km (approximately, 24,901 miles), ...
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3 Description
https://en.wikipedia.org/wiki/Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers.
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4 How big is Earth? - Space.com
https://www.space.com/17638-how-big-is-earth.html
Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). However, from pole to pole — the meridional ...
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5 How did mankind first determine the size of the Earth?
https://www.uu.edu/dept/physics/scienceguys/2001July.cfm
The circumference of the Earth is just its average diameter, 7915 miles, times the number pi, where pi is 3.14159. This gives us about 25,000 miles for the ...
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6 Measure Earth's Circumference with a Shadow
https://www.scientificamerican.com/article/measure-earths-circumference-with-a-shadow/
In 200 B.C. Eratosthenes estimated Earth's circumference at about 46,250 kilometers (28,735 miles). Today we know our planet's circumference is ...
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7 Circumference of the Earth - Universe Today
https://www.universetoday.com/26461/circumference-of-the-earth/
Measured at the equator, the Earth has a circumference of 40,075.017 km or 24,901.461 miles. But measured from pole to pole, that is to say, ...
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8 How large is Earth? - Cool Cosmos - Caltech
https://coolcosmos.ipac.caltech.edu/ask/57-How-large-is-Earth-
Earth's circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the ...
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9 On the choice of Earth circumference vs diameter to define the ...
https://hsm.stackexchange.com/questions/12332/on-the-choice-of-earth-circumference-vs-diameter-to-define-the-meter
Well, as others have pointed out we're a little off from 212 kilometers. However, there is no coincidence that our world's circumference is ...
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10 WGS-84 Earth equatorial radius (meters) - vCalc
https://www.vcalc.com/wiki/vCalc/WGS-84+Earth+equatorial+radius+%28meters%29
The Equatorial Radius of the Earth is 6,378,137.0 meters according to the WGS-84 earth datum. The data above is provided in meters.
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11 The Earth - NASA - Imagine the Universe!
https://imagine.gsfc.nasa.gov/features/cosmic/earth_info.html
Distance Information. The diameter of the Earth at the equator is 12,756 kilometers (km). How Do We Calculate Distances of This Magnitude?
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12 This measurement is more than 2,200 years old, and its ... - ABC
https://www.abc.net.au/news/2021-09-05/eratosthenes-measured-circumference-of-the-earth-2200-years-ago/100434560
The circumference of the earth was 40,000 kilometres, according to Eratosthenes' calculations. Eratosthenes Khan Academy. The bematists ...
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13 Determining the earth's size
http://www.geo.hunter.cuny.edu/~jochen/gtech201/lectures/lec6concepts/datums/determining%20the%20earths%20size.htm
The philosopher Plato (400 BCE ) declared the earth's circumference to be 64,412 kilometers (40,000 miles). Some 150 years later, the mathematician ...
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14 How Eratosthenes Calculated the Earth's Circumference
https://www.businessinsider.com/how-greek-eratosthenes-calculated-earth-circumference-2016-6
In the mid-20th century, we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 ...
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15 Planet Earth: Facts You Need to Know - ThoughtCo
https://www.thoughtco.com/essential-facts-about-the-planet-earth-1435092
Measured at the equator, the circumference of the Earth is 24,901.55 miles. However, the Earth is not quite a perfect circle, and if you ...
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16 What Is The Circumference Of The Earth? - WorldAtlas
https://www.worldatlas.com/articles/what-is-the-circumference-of-the-earth.html
The circumference of the Earth is 40075 kilometers, and the Greek geographer Erastosthenes was the first person to come close to accurately estimating it.
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17 How to Determine the Earth's Circumference - Dummies.com
https://www.dummies.com/article/academics-the-arts/math/geometry/how-to-determine-the-earths-circumference-187540/
Eratosthenes divided 360° by 7.2° and got 50, which told him that the distance between Alexandria and Syene (500 miles) was 1/50 of the total ...
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18 Measure the Earth's Radius! (with this one complicated trick)
https://www.youtube.com/watch?v=ckcdqlo3pYc
Stand-up Maths
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19 What is Earth's mean radius? - Definition from WhatIs.com
https://www.techtarget.com/whatis/definition/Earths-mean-radius
The Earth's mean radius is determined as the average distance from the physical center to the surface, based on a large number of samples.
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20 How to Calculate the Circumference of Earth - Tutors
https://tutors.com/math-tutors/geometry-help/circumference-of-earth
Circumference is the distance around a circle or sphere. An arc is a portion or fraction of a circle's or sphere's circumference. One complete trip around earth ...
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21 Fermi's Earth Circumference
https://rainbow.ldeo.columbia.edu/courses/v1001/fermi.html
1. the formula for a circle is 2 pi r, right? where r is the radius and pi is about 3. 2. so 24000 mi = 2 x 3 x r = 6 x r.
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22 Measuring the Circumference of the Earth in 240 BC
http://www.classichistory.net/archives/eratosthenes-circumference-of-earth
This corresponds to a circumference of between 24,384 and 32,481 miles, but it is likely that he calculated a value of about 25,000 miles. Compared to today's ...
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23 The circumference of earth is estimated to be 40,030 ... - Turito
https://www.turito.com/ask-a-doubt/the-circumference-of-earth-is-estimated-to-be-40-030-kilometers-at-the-equator-which-of-the-following-best-approx-q38c8ac9d
The circumference of Earth is estimated to be 40,030 kilometers at the equator. Which of the following best approximates the diameter, in miles, of Earth's ...
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24 Earth Curvature Calculator - Calculate the curve you should see
https://earthcurvature.com/
The Earth's radius (r) is 6371 km or 3959 miles, based on numbers from Wikipedia, which gives a circumference (c) of c = 2 * π * r = 40 030 km.
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25 Measuring the Circumference of the Earth with GPS
http://tolhurstj.faculty.gocolumbia.edu/ESGIS/Geographic_Information_Systems/CCTIS_59_GIS_GPS/Activities/Earth_Circumference_with_GPS/measuring_earth_circumference_with_gps.pdf
Meridian in given UTM zone), and northings (meters north of the Equator). Important: Set each GPS receiver's datum to WGS 84 so that all learners are working ...
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26 Equator | National Geographic Society
https://www.nationalgeographic.org/encyclopedia/equator/
The distance around the Earth at the Equator, its circumference, is 40,075 kilometers (24,901 miles). The Earth's diameter is also wider at ...
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27 Measure the Earth's Circumference with a Shadow
https://www.sciencebuddies.org/stem-activities/measure-the-earths-circumference-with-a-shadow
Today we know that the Earth's circumference is roughly 40,000 km (24,854 miles). Not bad for a two-thousand year old estimate with no modern technology!
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28 Earth radius to Meters Conversion - Length - TrustConverter
https://trustconverter.com/en/length-conversion/earth-radius/earth-radius-to-meters.html
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in ...
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29 How Many Miles Around The Earth? - The Nine Planets
https://nineplanets.org/questions/how-many-miles-around-the-earth/
The mean radius of Earth is at around 3.958 mi / 6.371 km, slightly larger than Venus, almost twice the radius of Mars and about three times that of Mercury ...
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30 Find the circumference of the earth | Wyzant Ask An Expert
https://www.wyzant.com/resources/answers/470829/find_the_circumference_of_the_earth
Find the circumference of the earth of the earth in meters and write your answer in scientific notation ? The circumference of the earth is ...
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31 Band around the Earth Puzzle - Math is Fun
https://www.mathsisfun.com/puzzles/band-around-the-earth.html
The circumference of the Earth is approximately 40,000 kilometers, and someone has just made a metal band that circles the Earth, touching the ground at all ...
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32 Convert Earth's Equatorial Radius to Meter - Unit Converter
https://www.unitconverters.net/length/earth-s-equatorial-radius-to-meter.htm
Earth's Equatorial Radius to Meter Conversion Table · 1 Earth's equatorial radius, 6378160 m · 2 Earth's equatorial radius, 12756320 m · 3 Earth's equatorial ...
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33 Solved The Earth is 24860 miles around in circumference.
https://www.chegg.com/homework-help/questions-and-answers/earth-24-860-miles-around-circumference-many-times-would-need-go-around-earth-equal-distan-q59531935
Well, the distance from Earth to the sun is nearly 93 Million miles , and the circumference of the earth = 24,860 miles which is by going around the earth ...
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34 Alexa, What is the circumference of the moon in meters?
https://alexaanswers.amazon.com/question/1iAp5yvee2koj0wrNzGF71
Earth's moon is the 5th largest moon in the solar system. The moon's mean radius is 1,079.6 miles (1,737.5 kilometers). its diameter: 2,159.2 miles (3,475 ...
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35 The circumference of the earth is 25000 mi at the equator ...
https://homework.study.com/explanation/the-circumference-of-the-earth-is-25-000-mi-at-the-equator-what-is-the-circumference-in-kilometers-in-meter.html
The circumference of the earth is 25,000 mi at the equator. What is the circumference in kilometers? in meter? Equator: The equator is one of the regions on our ...
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36 Eratosthenes of Cyrene (article) | Khan Academy
https://www.khanacademy.org/humanities/big-history-project/solar-system-and-earth/knowing-solar-system-earth/a/eratosthenes-of-cyrene
Measuring the Circumference of the Earth ... In Greece a stadion equaled roughly 185 meters (607 feet), while in Egypt the stadion was about 157.5 meters ...
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37 Exercise 4 : Numerical Data Pertaining to the Earth
https://uh.edu/~jbutler/physical/exercise4.html
The equitorial radius of the Earth is 6,378 kilometers (km): · Convert the equitorial radius from km to miles: · The volume of the Earth is 1.083 * 1027 cubic ...
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38 TAKE-HOME EXP. # 2 A Calculation of the Circumference and ...
https://home.csulb.edu/~gpickett/PS112/thexp2.pdf
circumference and radius of Earth helps to locate human beings ... about 500 miles directly south of the Museum at. Alexandria. In order to reach the bottom ...
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39 1:The circumference of earth is about 24900 miles. Using this...
https://www.coursehero.com/tutors-problems/Geography/28423072-1The-circumference-of-earth-is-about-24900-milesUsing-this-informat/
1.) Circumference = 360 degrees of the earth. 24,900 miles = 360 degrees. Latitude = 90 degrees. 90 degrees =( 24,900 * 90/360)Miles. =6,225 MILES. 1 Degree ...
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40 Eratosthenes Measures Earth's Circumference
https://outreach.as.utexas.edu/marykay/assignments/eratos1.html
therefore X = 39350 km, the circumference. Convert this value to miles: Find the radius and diameter of the earth: (use C = 2*Pi* ...
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41 Eratosthenes and the Circumference of the Earth - Nature
https://www.nature.com/articles/152473a0
If we accept the account of Strabo that Eratosthenes measured the circumference of the earth as 252,000 stadia, the circumference would be 24,662 miles, ...
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42 How was the size of Earth first measured? | StarDate Online
https://stardate.org/astro-guide/faqs/how-was-size-earth-first-measured
He calculated Earth's circumference at 26,000 miles (42,000 km), only five percent away from the modern accepted value of 24,901 miles (40,074 km).
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43 How to Find the Radius of the Earth - Sciencing
https://sciencing.com/radius-earth-5895686.html
As an example, we will use Eratosthenes' situation. The distance between Syene and Alexandria is 787 kilometers. Drive one of the meter sticks ...
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44 What Is The Circumference Of The Earth In Miles? - Blurtit
https://science.blurtit.com/366472/what-is-the-circumference-of-the-earth-in-miles
Answer (1 of 2): It depends on which way you're going.Equatorial: 40075.02 km = 24901.46 miAlong a meridian: 40007.86 km = 24859.73 mi_____In either case, ...
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45 How to Measure the Earth's Circumference? - Academia.edu
https://www.academia.edu/11648843/How_to_Measure_the_Earths_Circumference
The Earth's diameter was also derived from this via a pi value of 3.1418181818. This diameter of course was 7920 miles. The circumference measure can be ...
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46 What is the circumference of the earth in meters? - Answers
https://www.answers.com/physics/What_is_the_circumference_of_the_earth_in_meters
› Science › Physics
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47 If Earth's radius was larger by 1 meter, how much longer ...
https://globalquiz.org/en/question/if-earths-radius-was-larger-by-1-meter-how-much/
For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the ...
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48 Eratosthenes Measures the Circumference of the Earth - Nagwa
https://www.nagwa.com/en/videos/287108723870/
Nov 18, 2018
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49 stadium
http://www.sfu.ca/phys/100/lectures/lecture3/Stadium.html
Know: Circumference of earth is 240 000 stadii as measured by Eratosthenes. Definition: Metre is one ten-millionth the distance from the Pole to the equator ...
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50 Hands-on challenge: String around the Earth - BBC
https://www.bbc.co.uk/bang/handson/teaser-string.shtml
Sense of proportion. The important thing here is to get a sense of proportion. The circumference of a circle is directly proportional to the radius.
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51 What is a nautical mile, and how does it differ from a normal mi
https://science.howstuffworks.com/innovation/science-questions/question79.htm
To travel around the Earth at the equator, you would have to travel (360 * 60) 21,600 nautical miles, 24,857 miles or 40,003 kilometers. Advertisement. Lots ...
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52 Eratosthenes' Proportion - Measure the diameter of the earth
https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1004&context=stem_earth
A. Eratosthenes Calculates Earth's Circumference Thousands of Years Ago. ... meter stick to measure distance as you marched directly South to the Equator.
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53 Earth Radius by Latitude Calculator - Rechneronline
https://rechneronline.de/earth-radius/
Calculates radius and diameter of the Earth for a given latitude.
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54 Rope around the Earth - Math Images
https://mathimages.swarthmore.edu/index.php/Rope_around_the_Earth
Suppose a rope was tied taut around the Earth's equator. It would have the same circumference as the Earth (24,901.55 miles).
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55 Measurement of Circumference of the Earth - Enjoy physics
https://mahenphy20online.wordpress.com/2020/06/27/measurement-of-circumference-of-the-earth/
In 240 BC he estimated that the circumference of the Earth is 40000 kilometers.This value is only 30 km less than today's known value of 40,000 ...
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56 metre | measurement - Britannica
https://www.britannica.com/science/metre-measurement
metre (m), also spelled meter, in measurement, fundamental unit of length in ... in 1791 as 110000000 of the quadrant of the Earth's circumference running ...
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57 How Did the Ancient Greeks Measure the Circumference of ...
https://owlcation.com/stem/How-Did-the-Ancient-Greeks-Measure-the-Circumference-of-the-Earth
Therefore, 1 stadia is 300 cubits, which is 157.5 meters, which is about 516.73 feet. Therefore, Aristotle had the Earth's circumference at ...
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58 Using Google Earth to get the radius of the earth - MCToon
https://mctoon.net/radius-google-earth/
This gives 40,133,804.5 meters for the equatorial circumference. Knowing that c=2πr we can solve for the radius and get 6,387,493.4 meters. Latitude radius 1.
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59 [Expert Answer] The circumference of the earth is 40,000 km ...
https://brainly.com/question/17427258
The circumference of Earth is 40,075 kilometers. What would be a reasonable estimate for the circumference of Earth? See answers (1).
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60 Aristarchus and Eratosthenes
https://www.astronomy.ohio-state.edu/thompson.1847/1101/lecture_aristarchus.html
Derivation of the Earth's circumference. ... square meters) and a volume has dimensions of length cubed (e.g., cubic meters), so the scaling of surface area ...
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61 How Big is a Degree? - State Cartographer's Office
https://www.sco.wisc.edu/2022/01/21/how-big-is-a-degree/
If we assume Earth is a sphere, its circumference is about 25,000 miles or 40,000 kilometers (km). (A better model of Earth's shape is an ...
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62 How Eratosthenes Calculated the Earth's Circumference in ...
https://greekreporter.com/2022/07/29/eratosthenes-earth-circumference-ancient-greece/
Eratosthenes measured the circumference of the Earth in antiquity. ... in Alexandria, too, a few hundreds of miles to the north of Syene.
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63 Origins Of The Meter - ScienceIQ.com
https://www.scienceiq.com/facts/originsofthemeter.cfm
Some suggested defining the meter as the length of a pendulum having a half-period of one second; others suggested defining the meter as one ten-millionth of ...
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64 Earth's circumference - Math problem - HackMath.net
https://www.hackmath.net/en/math-problem/555
Its distance from the Earth's surface in the perigee was 226 km, and in the apogee, 947 km. The diameter 2. The diameter of the Earth is 12,756 kilometers. If ...
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65 There are 10 million meters in a quadrant of the earth's ... - Toppr
https://www.toppr.com/ask/question/there-are-10-million-meters-in-a-quadrant-of-the-earths-circumference-find-approximately-the/
There are 10 million meters in a quadrant of the earth's circumference. Find approximately the distance at which the top of the Eiffel tower should be visible, ...
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66 Eratosthenes Measures the Earth - The Math Doctors
https://www.themathdoctors.org/eratosthenes-measures-the-earth/
This means that you have moved 30 degrees around the Sphere (Earth) in those 400 miles. Well, since there are 360 degrees in a circle and 30/360 ...
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67 Measuring Shadows to Calculate the Size of Earth - NSTA
https://www.nsta.org/science-teacher/science-teacher-february-2020/measuring-shadows-calculate-size-earth
Since 7.2° is 1/50 of a circle, the circumference of planet Earth is simply 50 times the distance between Alexandria and Syene—50 x 800 km (Figure 2). That's ...
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68 High School Students Measure New Value for Earth's Radius ...
https://www.aps.org/publications/apsnews/200507/erastosthenes.cfm
Has the radius of Earth mysteriously grown by about 3%? According to data taken by 183 high-school classes participating in a World Year of Physics project, ...
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69 9 Estimating the Earth's Density - NMSU Astronomy
http://astronomy.nmsu.edu/mchizek/105/LABS/EarthDensity.pdf
[This value is equal to 5520 kilograms per cubic meter. ... circumference (which will lead us to the Earth's radius and then to the Earth's volume) and.
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70 Earth-Moon Distance
http://btc.montana.edu/ceres/worlds/earthmoon.htm
During Module 2 you found circumference of the Earth at the Equator is just over 40,000 km. The average Earth-Moon distance is about 385,000 km, ...
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71 Looking Down a Well in Egypt to Measure the Size of the Earth
https://medium.com/roaming-physicist/looking-down-a-well-in-egypt-to-measure-the-size-of-the-earth-5e12f2df0b2
The measurement of the Earth's circumference was repeated several decades later by Posidonius. He used the cities of Rhodes and Alexandria as ...
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72 Eratosthenes: The Measurement of the Earth's Circumference
https://www.juliantrubin.com/bigten/eratosthenes.html
The circumference of the Earth around the poles is now measured at around 40,008 km. Eratosthenes result is not bad at all. Very interesting is that the ...
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73 Measure distance & elevation - Google Earth Help
https://support.google.com/earth/answer/148134?hl=en
Circle: The circumference of a circle on the ground. 3D path: The distance between a building and places on the ground. 3D polygon: The height, width, and area ...
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74 How Long Would it Take to Walk Around the World?
https://www.thecalculatorsite.com/articles/health/how-long-to-walk-around-the-world.php
If you measure around the planet's 'waist', along the equator, then its circumference is 24,901.461 miles (40,075.017 km).
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75 Experiment of The Month | Millersville University
https://www.millersville.edu/physics/experiments/058/
Credit for the first estimate of the Earth's radius goes to Eratosthenes, ... was about 1000 miles, we conclude that the circumference of the earth is about ...
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76 Wired Equator - Logic Puzzles - BrainDen.com - Brain Teasers
http://brainden.com/forum/topic/38-wired-equator/
The circumference of the Earth is approximately 40,000 km. If we made a circle of wire around the globe, that is only 10 meters (0.01 km) ...
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77 "Eratosthenes' Measurement of the Earth Reconsidered"
https://www.jstor.org/stable/41134135
circumference of the Earth _ angular measure of a meridian terrestrial distance angular difference ... steps leading down about eight meters to the water.
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78 Astronomy 201: Homework 1 Answer Key
https://www.vanderbilt.edu/AnS/physics/astrocourses/ast201/hw1_key.html
(Your final answer may be in either miles/sec or km/sec.) [Answer] For this problem, ignore the Earth's ... The circle is the circumference of the Earth.
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79 Earth:Earth's circumference - HandWiki
https://handwiki.org/wiki/Earth:Earth%27s_circumference
As one degree is 1/360 of a circle, one minute of arc is 1/21600 of a circle – such that the polar circumference of the Earth would be exactly 21,600 miles.
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80 5.4: Measuring the Earth with Eratosthenes - Physics LibreTexts
https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Astronomy_for_Educators_(Barth)/05%3A_Measuring_and_Mapping_the_Sky/5.04%3A_Measuring_the_Earth_with_Eratosthenes
5. The actual circumference of the Earth is 24,900 miles. The example above was done by my own students several years ago and shows a value ...
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81 Latitude and Longitude - RASC Calgary Centre
https://calgary.rasc.ca/latlong.htm
Earth's Equatorial Radius, RE, 6378.14 km, (3963.19 miles) ... 1° of Longitude (1/360th of the Earth's equatorial circumference) is ...
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82 Earth Curvature Calculator
https://www.omnicalculator.com/physics/earth-curvature
The Earth curvature calculator lets you find the distance from you to the horizon, ... r — Earth's radius, equal to 3959 miles or 6371 km.
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83 Earth Facts - Nations Online Project
https://www.nationsonline.org/oneworld/earth.htm
Polar Radius: 6 357 km (~ 3 950 miles). ... x r3 = 1 086 781 292 542 cubic km or 260 732 699 457 miles3. Surface: Total Surface Area: about 509 600 000 square km ...
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84 Running the circumference of the earth - LetsRun.com
https://www.letsrun.com/forum/flat_read.php?thread=3373986
Contest to see who can run the distance of the circumfrance of the world (40,075k) the fastest. That works out to be 100,188 laps on a standard 400 meter track.
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85 From Skibergfjell, the circumference of the earth was measured
https://www.visitvestfold.com/en/Holmestrand/Artikler/Skibergfjell/
Right from the Greek Eratosthenes counted the earth's circumference with ... A 10-20 meters away from the granite column stands a square column of concrete.
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86 Answer to Puzzle #41: Rope around the earth, add 3 feet
http://puzzles.nigelcoldwell.co.uk/fortyone.htm
Additionally we know the relationship between the circumference of a circle and it's radius is generally given by R = C/2π that is the only formula you need to ...
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87 ASTRO 1050 Measuring the Earth
http://www.physics.uwyo.edu/~jessicas/teach/astron/measureearth.pdf
First, we will measure the radius of the earth like Eratosthenes, ... 1.496 × 1011 meters away, all rays are essentially parallel and this image is correct.
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88 [Solved] The average circumference of the earth is ______.
https://testbook.com/question-answer/the-average-circumference-of-the-earth-is-________--6014e2b6d4fbbae2e4413284
The correct answer is 40000 km. Earth Circumference refers to the distance around the earth. ... Greek polymath, Eratosthenes of Cyrene did the ...
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89 Measuring the circumference of the earth more than 2,000 ...
https://mathworldnepal.com/blogs/blog-6.html
Eratosthenes estimated the distance from Alexandria to Syene to be 5,000 stadia or about 800 kilometers. He made this estimate from the time it ...
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90 Answered: 10) The circumference of Earth at theā€¦ | bartleby
https://www.bartleby.com/questions-and-answers/10-the-circumference-of-earth-at-the-equator-is-24903-miles.-the-diameter-of-the-moon-is-2155-miles./9ed1a1ec-f824-46f7-916b-8c8702246112
Solution for 10) The circumference of Earth at the equator is 24903 miles. The diameter of the moon is 2155 miles. A) What is the radius of the earth?
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91 Circumference of the earth Stock Photos and Images - Alamy
https://www.alamy.com/stock-photo/circumference-of-the-earth.html
RM PPFGE6–Circumference of the Earth. Eratosthenes (250 BC) calculated the circumference of the Earth by measuring noontime shadows at two localities of ...
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92 How Did Eratosthene Calculate The Circumference Of Earth In ...
https://www.scienceabc.com/nature/eratosthene-calculate-circumference-earth-240-bc.html
He calculated the total circumference of the Earth to be ((360/7.2) x D ) kilometers, with D being the distance between Alexandria and Syrene.
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93 The circumference of the earth at the equator is about 25,00
https://quizlet.com/explanations/questions/the-circumference-of-the-earth-at-the-equator-is-about-25000-miles-estimate-the-diameter-of-the-eart-1d400b8c-b7d4-4574-b2ba-ef2069542624
We have to determine the diameter of a circle when given its circumference. We will first determine the circle's radius $r$ using the formula ...
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94 Eratosthenes' Measurement of the Circumference - Keyah Math
http://keyah.asu.edu/lessons/Eratosthenes/KM5.html
Convert your answer to part A to meters (1 km = 1000 meters). Question 3: What is the volume of the Earth? Compute the volume of the Earth using your answer to ...
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95 How can altitudes be used to calculate the circumference of ...
https://socratic.org/questions/how-can-altitudes-be-used-to-calculate-the-circumference-of-the-earth
See explanation for a nice approximation, using altitude H km and visible horizon ( nautical ) distance D km : Circumference = 2π(12D2H+H) km Explanation: ...
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96 How to draw circles with radii given in kilometers accurately ...
https://stackoverflow.com/questions/45421774/how-to-draw-circles-with-radii-given-in-kilometers-accurately-on-world-map
To find the radius of a circle in meters, we need to convert meters into degrees - which is easiest if we assume a round earth (The earth is ...
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