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How are today's submarines different from early submarines?

In: Submarines [Edit categories]

Answer:

Today's atomic powered subs can stay under water forever. They only surface to re-supply for the men (food and hygiene materials). Living on a modern atomic sub is like living in a small room. Prior to nuclear subs, the diesel powered vessels were nick-named PIG BOATS because it was like living under the hood of your car, sleeping/eating/living with the car's engine.

First answer by ID0402800186. Last edit by ID0402800186. Question popularity: 1 [recommend question].

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