Forget plugging your charger to a socket. Scientists at the Massachusetts Institute of Technology (MIT) have developed remote charging using magnetic induction between two devices that resonate with one another. Objects that resonate on the same frequency send energy from each other, a phenomenon called "strong coupling."
Marin Soljacic, a theoretical physicist and his MIT colleagues, developed a coil that oscillates at 10MHz. This coil stores energy and has the ability to send it through a receiver that is tuned to the same frequency across the room. The first priority of the scientists now is to make the energy transfer as safe as possible: 'We wanted to use the magnetic field for coupling, and have the electric field confined, because a magnetic field does not interact with most objects, including biological tissues," said Soljacic. It's still a long way before they can develop a method to recharge gadgets through the principle but they are definitely hopeful. "This technology will move from the lab to the real world. There's no fundamental problem. "It's going to work,' said Douglas Stone, a theoretical physicist at Yale University.