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Struve Geodetic Arc: The 2,820 Km Line That Produced The First Accurate Measurement of The Earth's Size | Amusing Planet
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Struve Geodetic Arc: The 2,820 Km Line That Produced The First Accurate Measurement of The Earth's Size | Amusing Planet
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Struve Geodetic Arc: The 2,820 Km Line That Produced The First Accurate Measurement of The Earth's Size | Amusing Planet
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