Wind turbines make a stealthy advance

摘要

For all their environmental appeal, wind turbines have few fans in the military or among air traffic controllers. Strange as it might seem, radar systems easily confuse the turbines' rotating blades with passing aircraft. Now a company has developed a "stealthy", radar-invisible blade that could see many more wind farms springing up across the UK and elsewhere.rnThe concern over wind turbines is delaying their deployment. According to the UK government's Department of Energy and Climate Change, plans for over 5 gigawatts of wind power are currently stalled by aviators' objections.