Turbine waterwheels. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to Anglo-Irish engineer Sir Charles Parsons (1854–1931) for invention of the reaction turbine, and to Swedish engineer Gustaf de Laval (1845–1913) for invention of the impulse turbine. Modern steam turbines frequently employ both reaction and impulse in the same unit, typically varying the degree of reaction and impulse from the blade root to its periphery. The word "turbine" was coined in 1822 by the French mining engineer Claude Burdin from the
RMS Connaught (1897) 13:45, submarine "U-48" fired a torpedo which exploded aft on the starboard side. The ship's wirless was disabled, so an S.O.S. could not be sent. 15 minutes later, a second torpedo struck amidships on the port side. Three crewmen having been killed, the rest of the crew took to the lifeboats. "Connaught" sank within four minutes of the second torpedo striking. The sinking occurred in the English Channel about south of the Light Vessel "Owers". Those lost in the sinking were: RMS Connaught (1897) RMS "Connaught" was a steamship built in 1897 and operated by the City of Dublin Steam