How Do Submarines Dive and Surface?
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How Do Submarines Dive and Surface?
Modern submarines can dive up to 240 meters below the surface of the water. When the crew is ready to submerge, external ballast tanks that are normally filled with air, open to receive water. This makes the ship slightly negatively buoyant. #ImpossibleEngineering Wednesdays 9/8 on Science http://www.sciencechannel.com/tv-shows/impossible ...
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