Wind Turbines, 1932 Version

treehugger.com — In 1932, German engineers determined "WIND, at the surface of the earth, is proverbially uncertain; but recent researches show that, a thousand feet or more above the ground, wind is comparatively steady and unfailing. This has given new life to the hope of finding a substantial source of natural power, even more universally available than water po May 1, 2007 View in Crawl 4