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 of the city after the recent June Days uprising but assured them that the anniversary of Bastille Day had gone by without any significant conflict. Verne used his family connections to make an entrance into Paris society. His uncle Francisque de Chatêaubourg introduced him into literary salons, and Verne particularly frequented those of Mme de Barrère, a friend of his mother's. While continuing his law studies, he fed his passion for the theatre, writing numerous plays. Verne later recalled: "I was greatly under the influence of Victor Hugo, indeed, very excited by reading and re-reading his works. At that time