http://www.netvouz.com/pdboyer/tag/basic?feed=rss pdboyer's bookmarks tagged "basic" on Netvouz http://www.eere.energy.gov/basics/renewable_energy/wind_turbines.html Although all wind turbines operate on similar principles, several varieties are in use today. These include horizontal axis turbines and vertical axis turbines. Wind Turbines 101 Energy pdboyer Mon, 25 Apr 2011 16:48:21 GMT http://learn.genetics.utah.edu/content/begin/traits/tour_heredity.html pdboyer Wed, 11 Feb 2009 03:53:37 GMT