Building A $3 Billion Nuclear Submarine (The Whole Process)

Описание: It takes 10 million man-hours and the most skilled welders on Earth to build a machine that can survive the crushing pressure of the deep ocean. We go inside the massive, classified shipyards where raw steel is forged into the "Pressure Hull." From the precision welding of the reactor compartment to the installation of acoustic tiles that make it invisible to sonar, witness the construction of the world's most complex vehicle.

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