Scientists and engineers are working towards making wireless power possible by harvesting and transforming existing energy from the world around us. Models they have looked at include nanoscale pillars that turn waste heat into electricity and a spongey smartphone case that generates electricity from sitting on a vibrating surface. One source of energy is thermoelectricity, which works by creating electricity from the current created by electrons moving from hot to cold, an approach that may be ideal for humans. Continue reading Wireless Power: Experiments in Charging Future Mobile Devices