The tangle of cables and plugs needed to recharge today’s electronic gadgets could soon be a thing of the past.
US researchers have outlined a relatively simple system that could deliver power to devices such as laptop computers or MP3 players without wires.
The concept exploits century-old physics and could work over distances of many metres, the researchers said.
Although the team has not built and tested a system, computer models and mathematics suggest it will work.
“There are so many autonomous devices such as cell phones and laptops that have emerged in the last few years,” said Assistant Professor Marin Soljacic from the Massachusetts Institute of Technology and one of the researchers behind the work.
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