Nautilus (Verne) from seawater) is the craft's primary power source for propulsion and other services. "Nautilus" is double-hulled, and is further separated into water-tight compartments. Its top speed is . Its displacement is submerged. In Captain Nemo's own words: "Nautilus" uses floodable tanks in order to adjust buoyancy and so control its depth. The pumps that evacuate these tanks of water are so powerful that they produce large jets of water when the vessel emerges rapidly from the surface of the water. This leads many early observers of "Nautilus" to believe that the vessel is some species of whale, or perhaps a
Jules Verne Jules Verne Jules Gabriel Verne (; ; 8 February 1828 – 24 March 1905) was a French novelist, poet, and playwright. Jules Verne was born in the seaport of Nantes, he was trained to follow in his father's footsteps as a lawyer, but quit the profession early in life to write for magazines and the stage. His collaboration with the publisher Pierre-Jules Hetzel led to the creation of the "Voyages extraordinaires", a widely popular series of scrupulously researched adventure novels including "Journey to the Center of the Earth" (1864), "Twenty Thousand Leagues Under the Sea" (1870), and "Around the World