POWER cables and plugs may soon become obsolete because scientists have developed a way to wirelessly charge electrical devices from a distance.WiTricity can already power a lightbulb over a distance of 2m, and its inventors believe that within three to five years the system would be able to charge mobile phones, laptops, MP3 players and other electronic devices.
The appliances would only need to be within range of a WiTricity transmitter to work.
Professor Marin Soljacic, of the Massachusetts Institute of Technology, said that wireless electricity could eventually replace most power cables, in the same way that mobile and cordless phones had supplanted landlines.
“Once, when my son was about three years old, we visited his grandparents’ house,” said Professor Soljacic, whose results are published in the journal Science. “They had a 20-year-old phone and my son picked up the handset, asking, ‘Dad, why is this phone attached with a cord to the wall?’
Source: theaustralian.news.com.au
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