energy, water, turbines, Francis turbine, built by A. Wetzig machine factory, Wittenberg, functional principle, longitudinal section, wood engraving, late 19th century, 19th century, generator, generators, electric power, generation of current, electricity generation, power production, power generation, turbines, water power, waterpower, hydropower, water powers, hydroelectricity, historic, historical, engineering, technics, technology, technologies, Additional-Rights-Clearences-Not Available

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
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Keywords: 19th, built, century, current, electric, electricity, energy, engineering, francis, generation, generator, generators, historic, historical, hydroelectricity, hydropower, machine, power, powers, production, technics, technologies, technology, turbine, turbines, water, waterpower, wetzig