In the 1890s, Nikola Tesla captured the imagination of the world with his invention of the Tesla coil, a device that could transmit electricity through the air, no wires required. More than 100 years later, the world has responded by adapting this breakthrough technology… mainly to recharge their electric toothbrushes.But things are changing rapidly in the world of wireless power, with some new ideas coming to the forefront in the last few years. As more and more gadget makers get hip to the idea of a world without power bricks, this is a technology category that’s about to explode.MORE: 10 mobile startups to watch
How will your phone, your lights, and even your electric car someday be powered without a wire? Here’s a primer on how wireless power works.To read this article in full or to leave a comment, please click here