# how did eratosthenes measure the size of the earth

Gallery of how did eratosthenes measure the size of the earth

### Astronomy 101 Specials: Eratosthenes and the Size of the Earth

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### Eratosthenes: The Measurement of the Earth's Circumference

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### Determining the earth's size

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### A Modern Measurement of the Radius of the Earth | WIRED

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### Eratosthenes of Cyrene (article) | Khan Academy

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### Eratosthenes

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### Eratosthenes | physics4me

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### Proving Eratosthenes' Measurement Methods

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### Astronomy 101 Specials: Eratosthenes and the Size of the Earth

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### Astronomy On-Line: How to measure the size of the Earth

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### Eratosthenes

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### Eratosthenes Earth Measure

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### Eratosthenes Measures Earth's Circumference

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### Angles & Arc Length: Discovering Earth's Circumference (cont.)

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### Eratosthenes Calculation of the Circumference of the Earth

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### How to measure the size of the earth. Thank you Eratosthenes ...

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### stick_shadows_crop.png

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### No. 1457: Eratosthene's Diameter of Earth

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### Eratosthenes Measures Earth's Circumference

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### Eratosthenes: The Size of the Earth

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### Eratosthenes - Wikipedia

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### June 19, 240 B.C.: The Earth Is Round, and It's This Big | WIRED

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### How to Determine the Earth's Circumference - dummies

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### Eratosthenes: The Size of the Earth

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### Keyah Math - Numerical Solutions for Culturally Diverse Geology

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### er1.GIF

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### Poet of the universe

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### Estimation of The size of the Earth

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### Calculating the Circumference of the Earth

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### Astronomy 10: Lecture 4

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### Chapter 17:Eratosthenes

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### Aristarchus and Eratosthenes

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### Eratosthenes: The Size of the Earth

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### Eratosthenes | Greek scientist | Britannica.com

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### Eratosthenes - Wikipedia

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### Determining the earth's size

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### History of Astronomy

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### eGFI – For Teachers » Lesson: Measure the Earth's Circumference

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### Chapter 3-6

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### The Earth

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