http://www.altaeros.com - First public video of the 35-foot-wide Airborne Wind Turbine. The scale prototype harnessed strong winds up to 350 feet high to produce over twice the power of traditional wind turbines. The prototype was tested in Limestone Maine by Altaeros Energies, a wind energy company formed out of MIT. The Airborne Wind Turbine uses a helium-filled, inflatable shell to ascend to h