Cut from stainless steel on our cnc plasma machine. Has a hole cut into it so can be put onto a keyring. Agrifabs fencing wire twisting tool. Fantastic little tool to help twist the ends of fencing wire. | eBay!
Alternative Energy DIY, from cardboard wind turbines to portable solar chargers made with altoid tins. http://calgary.isgreen.ca/living/crafts/making-music/
savonius wind turbine - Recherche Google More
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The first all steel windmill and tower produced in America by the U.S. Wind Engine & Pump Co. Designed by famous windmill engineer and designer, Thomas O. Perry.
Michael Hackleman introduces a very effective wind energy device made from 55 gallon drums. The Savonius or S-rotor is from California-based farm research center Earthmind, which specializes in alternative energy experiments.