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	How to Measure the size of Earth! (Thunderf00t) View
	How everybody can measure the size of the Earth (YouCanScienceIt) View
	How to Measure the size of Earth! (The Gentleman Physicist) View
	How to Measure the Earth's Circumference (Physics Almanac) View
	Measuring the Earth's Size (without Google) (Tipping Point Math) View
	How to measure Earth size (Baynam Sarf) View
	Eratosthenes - Measuring the Circumference of Earth (TMartScience) View
	Astronomy - Measuring Distance, Size, and Luminosity (5 of 30) Distance to Our Sun: 1 (Michel van Biezen) View
	Astronauts, How Can You Prove That The Earth Is Not Flat (Qu0026A Story) #4 (Stories with Educational Analysis by Arman) View
	How to Measure the Earth's Radius (Physics Almanac) View