A new nuclear submarine just made its first dive after being commissioned for the Royal Navy. The 8,100-ton HMS Agamemnon successfully submerged near BAE Systems’s facility in Barrow, Cumbria. The ...

Jules Verne’s 1870 novel *20,000 Leagues Under the Sea* features the state-of-the-art submarine Nautilus. Built by Captain Nemo, the Nautilus traversed the deep sea at a top speed of 43 knots ...