I always thought that an u-boat has zero buoyancy.:hmm:
In the book Das Boot it was said that the 'Regelzellen' were used for maintaining zero buoyancy.
Correct me if I'm wrong.
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"I cannot but conclude the bulk of your natives to be the
most pernicious race of little odious vermin that nature
ever suffered to crawl upon the surface of the earth."
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Jonathan Swift, Gulliver's Travels (1726)
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