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How America Built Lighthouses on Wave-Battered Atlantic Rocks
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2,475 回視聴48高評価41:28GlobalOldHistory元のリリース: 2026-05-15

The United States built stone lighthouses on dangerous offshore rocks between 1850-1890 using innovative engineering solutions like dovetailed granite blocks that interlock without mortar, allowing towers to withstand 100-foot waves through geometric precision and mass. These structures, built by workers who could only work 90-minute shifts due to tidal constraints, have survived over 160 years of Atlantic storms, demonstrating how human ingenuity can overcome seemingly impossible natural obstacles through careful design and determination.

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