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
William Moore (steamship captain) one final prospecting trip, this time to Nome, Alaska, however, he soon returned to Skagway and built a house on Skagway Bay. On top of the house he built a room fashioned in the style of a pilot-house where he could look out at the ships in the bay. He died nine years later, in Victoria on 29 March 1909 at the venerable age of 87. William Moore (steamship captain) William Moore (30 March 1822 – 29 March 1909) was a steamship captain, businessman, miner and explorer in British Columbia and Alaska. During most of British Columbia's gold rushes (from