Hydroelectric turbines of the Wilson Dam Hydroelectric Plant in Florence, Alabama.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...c_turbines.jpg
Previously:
https://www.homemadetools.net/forum/...753#post155933
https://www.homemadetools.net/forum/...437#post135542
https://www.homemadetools.net/forum/...510#post132114