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
Cheakamus (steamship) Cheakamus (steamship) Cheakamus was a steamship built in 1913 in North Vancouver, British Columbia. This ship was originally built as the "Cheslakee" in Scotland. After "Cheslakee" capsized in 1913, the hulk was raised, lengthened, and placed back into service as "Cheakamus". "Cheakamus" was named after the Cheakamus River and Cheakamus Canyon which are north of Howe Sound in British Columbia. The original Skwxwu7mesh (Squamish) name is Chiyakmesh or "Chehagamus", meaning "fish trap." In January 1913 the Union Steamship Company's "Cheslakee" capsized at the dock at Van Anda, British Columbia on Texada Island, drowning at least seven people. The hulk was