 USS Nautilus (SSN-571)

USS Nautilus (SSN-571) is a notable submarine in the history of naval engineering as it was the world's first operational nuclear-powered submarine. Commissioned by the United States Navy on September 30, 1954, it represented a significant leap in submarine technology. The Nautilus was designed to operate underwater for extended periods without the need for surfacing, thanks to its nuclear reactor, which generated steam to power its engines.