# 65 > DAMS, LOCAL STATE, US, WORLD, OTHER

------------------------------------------------------------------------------------------------
SEE HTTP://H2OMF.BLOGSPOT.COM
HTTP://ALASKAENERGYPOLICY.BLOGSPOT.COM
-----------------------------------------------------------------------------------------
Francis turbine partsFrancis Runner, Grand Coulee DamWater wheels have been used historically to power mills of all types, but they are inefficient. 19th century efficiency improvements of water turbines allowed them to compete with steam engines (wherever water was available).In 1826 Benoit Fourneyron developed a high efficiency (80%) outward flow water turbine. Water was directed tangentially through the turbine runner causing it to spin. Jean-Victor Poncelet designed an inward-flow turbine in about 1820 that used the same principles. S. B. Howd obtained a U.S. patent in 1838 for a similar design.In 1848 James B. Francis improved on these designs to create a turbine with 90% efficiency. He applied scientific principles and testing methods to produce the most efficient turbine design ever. More importantly, his mathematical and graphical calculation methods improved the state of the art of turbine design and engineering. His analytical methods allowed confident design of high efficiency turbines to exactly match a site's flow conditions.

---------------------------------------------------------------------------------------------
DAMS - ALL KINDS OF DAMS
google image -- SLOW MOVING WATER DAMS
http://images.google.com/images?gbv=2&hl=en&q=SLOW+MOVING++water+dams&sa=N&start=126&ndsp=21
google image -- IRRIGATION DAM PLANS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=irrigation+dam+plans&btnG=Search+images&aq=f&oq=
google image -- DAM DESIGNS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=Dam+designs&btnG=Search+images&aq=f&oq=
google image -- Tidal Dams** INTERESTING
http://images.google.com/images?gbv=2&hl=en&sa=1&q=tidal+dams&btnG=Search+images&aq=f&oq=
google image -- Tidal Dam Plans
http://images.google.com/images?gbv=2&hl=en&sa=1&q=tidal+dam+plans&btnG=Search+images&aq=f&oq=
google image -- COASTAL DAMS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=COASTAL+DAMS&btnG=Search+images&aq=f&oq=
google image -- OCEAN DAMS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=Ocean+dams&btnG=Search+images&aq=f&oq=
google image -- Alpine Dams
http://images.google.com/images?gbv=2&hl=en&sa=1&q=Alpine+dams&btnG=Search+images&aq=f&oq=
ARCTIC WATER DAMS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=arctic+water+dams+&btnG=Search+images&aq=f&oq=
google image -- ALASKA DAMS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=Alaska+dams&btnG=Search+images&aq=f&oq=
google image -- US DAMS
http://images.google.com/images?gbv=2&hl=en&sa=1&q=US++dams&btnG=Search+images&aq=f&oq=
google image -- World Dams
http://images.google.com/images?gbv=2&hl=en&sa=1&q=World+dams&btnG=Search+images&aq=f&oq=


-----------------------------------------------------------------------------------
http://www.window.state.tx.us/specialrpt/energy/renewable/hydro.php



Hydropower is the most common source of renewable electricity in the United States.
History
Human beings have harnessed the power of moving water for millennia, originally for purposes such as grinding grain and sawing wood. They have been employing its power to generate electricity since the 19th century, near the very beginning of the electric age. For example, Niagara Falls, New York began powering its street lights with hydroelectricity in 1881. In the following year, the world’s first hydroelectric power plant opened in Appleton, Wisconsin.2