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
Cultural influence of Jules Verne conversational character robot designed and built by him "Jules" in memory of Jules Verne. It is able to speak and respond in a human like manner, based on what it hears and has facial muscles that react to speech. Other scientific figures known to have been influenced by Verne include Fridtjof Nansen, Wernher von Braun, Guglielmo Marconi, and Yuri Gagarin. Arthur Rimbaud was inspired to write his well-known poem "Le Bateau ivre" after reading "Twenty Thousand Leagues Under the Sea", which he extensively alludes to within the poem; "The Adventures of Captain Hatteras" was likely an additional source of inspiration.