Charge Your Gadgets Wirelessly

Imagine a world without tangled cords, plugs, and chargers. Well, researchers from MIT are working on it, attempting to create efficient wireless energy transfer via electromagnetic waves. It is based on the phenomenon of electromagnetic induction where a current running in an emitting coil can induce another current in a nearby receiving coil. MIT professor, Marin Soljacic, believes that a non-radiative electromagnetic field could be used to 'broadcast' energy over short distances such as from one end of a room to the other. Any gadgets in the vicinity that are designed to resonate with the field can automatically recharge. However, it is still in the early stages of development and much remains theory.

Wireless Energy More Plausible Than Ever [Via: Ohgizmo]