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
AEG turbine factory overall image of the company. Initially influenced by the developing Art Nouveau, the architect turned soon to the Werkbund, which in turn was influenced by the British Arts and Crafts. The turbine hall was built in 1909 under Peter Behrens as lead architect and engineer Karl Bernhard at the corner of Huttenstraße and Berlichingenstraße streets in Berlin-Moabit. The building mainly consists of steel components, glass, and stone. The original building measures 25.6 m + 12.5 m in width, a height of 25 m and a length of 123 m. Behrens' design provided a neo-classical look to the industrial building, with