The global internet is powered by vast undersea cables. But they’re vulnerable. – CNN

On July 29, 1858, two steam-powered battleships met in the middle of the Atlantic Ocean. There, they connected two ends of a 4,000 kilometer (2,500 mile) long, 1.5 centimeter (0.6 inch) wide cable, linking for the first time the European and North American continents by telegraph.

Source: The global internet is powered by vast undersea cables. But they’re vulnerable. – CNN

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