Hi people, It may be a strange question, or impossible, but maybe you could help me out. It's about submarines, high pressure and Bernoulli's law. What if we build some kind of jet engine-like thing on the front of the submarine, not to 'pull' it forward, but to speed up the water direct next to the submarine. In this was, following Bernoulli's law, when the velocity of the water increases, the pressure must decrease? Will the submarine implode later than a similar submarine without this stuff? If we assume that the water coming out of the engine covers the whole side. More simplified: Can you use the decreasing pressure effect from Bernoulli's law to help increase the depth range of a submarine? Just curious... The attachment includes a simple picture to make the story more clear.