Wireless revolution could spell end of plugs

Batteries and sockets could become a thing of the past after scientists devised a way of recharging mobile phones and laptops without the need for cables.

Electrical engineers used mainly magnetic waves to operate a light bulb from a power source seven feet away.

They envisage a future in which portable electronic gadgets and even robots are capable of charging themselves without ever being plugged in. Dispensing with their bulky batteries would also help free society of the waste problem caused by battery disposal.

lthough concerns have been raised about a possible link between electromagnetic waves and cancer, scientists believe the technology can be developed without posing any additional risks.

A team from the Massachusetts Institute of Technology which reports its feat today in Science Express, an online advance publication of the journal Science, refers to its concept as “WiTricity” (as in wireless electricity).

Scientists and engineers have known for many years that transferring electric power does not require wires.

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