CURRENT AFFAIRS

Detailed explanation-1: -The first nuclear-powered submarine, USS Nautilus, put to sea in 1955. This marked the transition of submarines from slow underwater vessels to warships capable of sustaining 20-25 knots submerged for weeks on end.

Detailed explanation-2: -USS Nautilus was the first nuclear-powered submarine. Electric Boat Company in Groton, Connecticut-the same company that had sold the U.S. Navy its first submarine in 1900-laid her keel 14 June 1952. She was launched 18 months later and commissioned in September 1954.

Detailed explanation-3: -The world’s first nuclear-powered submarine was USS Nautilus, launched at Groton, Connecticut, USA, on 21 January 1954. Built by General Dynamics Electric Boat, Nautilus was 98.7 m (324 ft) long, with a beam of 26.8 m (88 ft).

Detailed explanation-4: -The construction of Nautilus-the world’s first nuclear powered submarine-was made possible by the successful development of a nuclear propulsion plant by a group of scientists and engineers, under the leadership of Captain Hyman G. Rickover, at the Naval Reactors Branch of the Atomic Energy Commission.

Detailed explanation-5: -Drebbel: 1620-1624 British mathematician William Bourne made some of the earliest known plans for a submarine around 1578, but the world’s first working prototype was built in the 17th century by Cornelius Drebbel, a Dutch polymath and inventor in the employ of the British King James I.