Wireless Electrity or Witricity
Scientists may have signaled an end to electric cords and batteries when they lit a 60-watt light bulb from a power source seven feet away without using a physical connection. The researchers have named their concept “WiTricity” as in “wireless electricity.”
The problem with wireless power transmission is that broadcasting energy in all directions can be very wasteful because a vast majority of power ends up being squandered into free space.
The scientists designed two copper coils roughly 20 inches in diameter that were specially designed to resonate together. One was attached to the power source, the other to a light bulb. The practical demonstration of their earlier theoretical work managed to power the light bulb even when obstacles blocked direct line of sight between the source and device, findings detailed online June 7 in the journal Science.
I guess this will soon revelutionize the world. we can have a Wire free world 
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