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
History of steamship lines History of steamship lines The shipping company is an outcome of the development of the steamship. In former days, when the packet ship was the mode of conveyance, combinations, such as the well-known Dramatic and Black Ball lines, existed but the ships which they ran were not necessarily owned by the organizers of the services. The advent of the steamship changed all that. In 1815 the first steamships began to ply between the British ports of Liverpool and Glasgow. In 1826 the "United Kingdom", a leviathan steamship, as she was considered at the time of her construction, was built for