http://www.gizmag.com/ecogizmo/" style="">ecoGizmo: Much of the abundant mechanical energy around us is irregular and oscillatory and can be somewhat difficult to efficiently tap into. Typical energy harvesting systems tend to be built for low power applications in the milliwatts range but researchers from New York's Stony Brook University have developed a new patent-pending electromagnetic energy harvester capable of harnessing the vibrations of a locomotive thundering down a stretch of track to power signal lights, structural monitoring systems or even track switches. .. Continue Reading
http://www.gizmag.com/mechanical-motion-rectifier-railroad-energy-harvester/2...">Award-winning device harvests energy from railway track vibrations