Saturday, July 11, 2009

Vertical Axis Wind Turbine Helix (VAWT)

Vertical Axis Wind Turbine Helix (VAWT)

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1 comment:

  1. midnightchalkDecember 31, 2009 at 1:47 PM

    thanks, made em smile in relief, love wind turbines, i'd put them on every hill :)

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