Originally Posted by
Heat88
I don't understand why anybody still has to do anything experimental with the basic design of deep sea subs anymore. Somebody figured it out 64 years ago when they built one that was able to go down to the Mariana Trench which is the deepest place in all of the oceans and 3 times deeper than where the Titanic is. There should be deep sea tours by now.
I think if you try scaling up the Trieste’s passenger sphere, and the air inside it, you run into a whole new world of engineering challenges.