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Measuring the Earth with triangles (GeoOceanology) View |
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Eratosthenes - Measuring the Circumference of Earth (TMartScience) View |
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Astronomy - Measuring Distance, Size, and Luminosity (5 of 30) Distance to Our Sun: 1 (Michel van Biezen) View |
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Measuring the Earth's Size (without Google) (Tipping Point Math) View |
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Eratosthenes - Measuring the Earth (BlueMarbleScience) View |
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Measuring Earth's Curvature with Basic Gear - no flat earth (Rick Brinkman) View |
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How to Find the Area of a Triangle | Calculate the Area of a Triangle (Math with Mr. J) View |
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Calculate the circumference of the Earth with two sticks Eratosthenes (UnderstandingMath) View |
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North Woods Scientist Measuring Circumference of Earth (Bob the Science Guy) View |
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History of triangulation (Intellectual Mathematics) View |