They are typically found in complex pieces of engineering, such as nuclear power plants, ships, aircraft, etc. Engineering is the application of scientific and technical knowledge to solve human problems. ... A nuclear power station. ... Italian ship-rigged vessel Amerigo Vespucci in New York Harbor, 1976 A ship is a large, sea-going watercraft, usually with multiple decks. ... Airbus A380 An aircraft is any machine capable of atmospheric flight. ...