That said don’t expect a vibration-harvesting device to power your entire home via washing machine shaking. However, this battery-free gizmo that uses non-linear spring and mass could tap into enough kinetic energy to charge small gadgets like your cell phone or iPod. In addition to household appliances, researchers are taking it a step further by looking into the possibility of harvesting energy from things like trains and helicopters. According to Business Green, similar "energy harvesting" technology does exist but its frequency-reading range is limited.
Says project lead, Dr. Stephen Burrow:
There's a huge amount of free, clean energy out there in the form of vibrations that just can't be tapped at the moment. Wider-frequency energy harvesters could make a valuable contribution to meeting energy needs more efficiently and sustainably," said Burrow.