Submersibles are used for exploring underwater life fartherbeneath the surface then humans can go UNequipt. John Wikes Booth invented the submersible. Its is also a small nonmilitary nonnuclear submarine that is used for exploration.
Submersibles are commonly used by researchers and security forces such as the navy and the coast guard. The coast guard can use them to inspect the underside of ships for any smuggled items.
YES, most true submersibles have a 'pilot' and a systems operator. The submersibles that do not carry people are usually called ROV's or AUV's
Very small, if it even exists. Most submersibles do not carry cargo
Deep sea submersibles help get research from the ocean floor.
alvin
july 21, 1856
John Wilkes Booth did
no
Submersibles work on undersea oilwells, recover practice torpedoes, search for sunken ships or things that have fallen off ships and sunk.
They come in different shapes and sizes
Titanic has been explored through the use of ROV's (Remotely-operated vehicles). These are controlled from manned submersibles.
One of the major advantage of personal submersibles over scuba gear is you can't feel the changing pressure while ascending and descending.