The World's Biggest Wind Turbine Blades Are So Long Their Tips Spin at 180 MPH [Monster Machines]

For off-shore wind farms to become an economically feasible alternative energy source, each turbine needs to be big. Like, really big. That's why the latest turbine blade from Siemens is gigantic—just a hair shorter than the wingspan of an Airbus 380. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/VML2HcbGnQQ/the-worlds-biggest-wind-turbine-blades-are-so-long-their-tips-spin-at-180-mph

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