“In the choice between changing one’s mind and proving there is no need to do so, most people get busy on the proof.” John K. Galbraith, Economist (1908 – 2006).
Tuesday, 25 September 2012
Foot pounds of energy?
Researchers at Georgia Institute of Technology have devised a self charging battery unit. By incorporating a piezoelectric material within a Li-ion battery, this generates a charge under mechanical stress and produces a self-charging device. Putting the device on the bottom of a shoe provided a simple route for supplying the mechanical energy for conversion and storage.