Hard to believe they work
As the demand for more efficient and more affordable wind power grows, designers are pushing the limits of the technology well beyond the traditional windmill spinning on a grassy hilltop. Often this leads to some pretty wild ideas. Modern turbine design is a testament to the unlimited creativity and ingenuity of today's engineers, but a few of these designs may leave you asking: How exactly is that supposed to work?
Here's our list of the most unusual wind turbine designs that could revolutionize the field. (Text: Bryan Nelson)