Richard Hammond's Engineering Connections - Series 2 - HMS Illustrious

Richard Hammond unpicks the engineering DNA of the mighty aircraft carrier HMS Illustrious. A potent force with a powerful punch, this aircraft carrier can deliver a strike force anywhere on the globe at any time. It's a floating airport, city and battleship all rolled into one. But what connects this indomitable vessel with a boomerang, a hearing aid, an 18th-century seed drill, Tower Bridge and the space race?