follicle

So I complained that I was still using power cords, and I see there is a commercially available solution for charging selected devices without plugging in a cord, by fitting contacts to the device’s battery terminals and placing it on a conductive pad.  Yeah, ok, but it’s not a great solution, it still requires physical contact on a special surface.  So come on down, wireless power!  One of MIT Technology Review’s ten emerging technologies of 2008, this is the answer to the power cord.  Resonant coils at each end couple electrical energy through a magnetic field.  Efficiency is the hill to climb, but the impact could be big.