Why 10,000-Year-Old Gravity-Defying Rocks Haven't Toppled

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自然界最疯狂的石头背后，可能还是一台反向的“天然地震仪”

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自然界最疯狂的石头背后，可能还是一台反向的“天然地震仪”

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Why 10,000-year-old gravity-defying rocks haven't toppled?

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