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
1897 British Guiana general election 1897 British Guiana general election General elections were held in British Guiana in 1897. The elections were held under the 1891 constitution, which provided for a 16-member Court of Policy, half of which was elected. The Court included the Governor, seven government officials (the Attorney General, the Government Secretary, the Immigration Agent General and the Receiver General, together with three other appointees). The eight elected members were elected from seven constituencies; Demerara East, Demerara West, Essequebo North Western, Essequebo South Eastern, Berbice, City of Georgetown (2 members) and New Amsterdam. In addition, six "Financial Representatives" were also elected in six