Saturday, June 09, 2007
Ever wish you could just set your cell phone down in your office and have it charge up without plugging it into anything? Well, it's feasible, according to MIT scientists who have demonstrated using wireless power to run a light bulb. "WiTricity" uses a clever manipulation of magnetic resonance to do the job efficiently instead of directly sending power via radio-frequency signals. For now, it's just a very neat trick, but the potential applications are very broad indeed.