The Biber midget submarine was one of the smallest German submarines of World War II. Designed for coastal operations, it was meant to attack enemy ships with torpedoes — quietly, unexpectedly and without the need for large U-boat bases. Reality was far more dangerous: Cramped conditions, limited range and frequent technical problems made missions extremely risky. For the often inexperienced pilots, every deployment could become a one-way mission. Today, the Biber stands as a symbol of the late-

Most Dangerous Weapon in Human History A submarine (or sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.)[2] The term “submarine” is also sometimes used historically or informally to refer to remotely operated vehicles and robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as boats rather than ships regardless of their size.[3] | Life

The switch to nuclear power means Australia's submarines will be harder to detect and have the capacity to stay at sea longer. But how would they work and what are the risks? Reporter Randolph Nogel takes a closer look. Watch more stories explaining the news on ABC iview: https://iview.abc.net.au/collection/2551 | ABC News