Nautilus (Verne) ordinary folk have envisioned over the decades their own interpretations of "Nautilus": A Catalog of "Nautilus" Designs Nautilus (Verne) Nautilus is the fictional submarine captained by Nemo featured in Jules Verne's novels "Twenty Thousand Leagues Under the Sea" (1870) and "The Mysterious Island" (1874). Verne named the "Nautilus" after Robert Fulton's real-life submarine "Nautilus" (1800). For the design of the "Nautilus" Verne was inspired by the French Navy submarine "Plongeur", a model of which he had seen at the 1867 Exposition Universelle, three years before writing his novel. "Nautilus" is described by Verne as "a masterpiece containing masterpieces". It is
Twenty Thousand Leagues Under the Sea of underwater breathing apparatus designed by Benoit Rouquayrol and Auguste Denayrouze in 1865. They designed a diving set with a backpack spherical air tank that supplied air through the first known demand regulator. The diver still walked on the seabed and did not swim. This set was called an "aérophore" (Greek for "air-carrier"). Air pressure tanks made with the technology of the time could only hold 30 atmospheres, and the diver had to be surface supplied; the tank was for bailout. The durations of 6 to 8 hours on a tankful without external supply recorded for the Rouquayrol set in