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Home Featured

Wireless Electricity May Soon Power Cell Phones, Cars

ToP by ToP
March 27, 2014
in Featured, Technology
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power cell phonesYou may never have to worry about manually charging your cell phone or paying for gasoline again. Wireless electricity is not a new concept – it was publicly demonstrated over 100 years ago by Nikola Tesla – but has remained elusive in broad commercial applications.

However, a startup company says they are working to change that, with a business model that could make portable power commonplace. “We’re going to transfer power without any kind of wires,” Dr. Katie Hall, chief technology officer of WiTricity, told CNN. “I can’t even imagine how things will change when we live like that.” WiTricity CEO Eric Giler demonstrated the company’s technology during a TED talk, in which he explained, “This all came from a professor waking up at night to the third night in a row that his wife’s cell phone was beeping because it was running out of battery power.

And he was thinking,’With all of the electricity that’s out there in the walls, why couldn’t some of that just come into the phone so I could get some sleep?'”A team of MIT professors then developed what they call “resonant power transfer,” in which a power coil is able to wirelessly transfer electricity to another device containing a similar coil set to the same frequency. The MIT group was first able to demonstrate the technique in 2007, which led to the formation of WiTricity.

Since then, the company has conducted several public demonstrations, where they have used the technology to wirelessly power objects such as batteries, LED lights and cell phones. “We’re not actually putting electricity in the air. What we’re doing is putting a magnetic field in the air,” Hall told CNN. “When you bring a device into that magnetic field, it induces a current in the device, and by that you’re able to transfer power.”

Wireless electricity is widely considered to be safe, but WiTricity and other companies developing similar technology are still trying to find effective ways to efficiently transfer electricity over longer distances. (Monitoring Desk) -Thenews

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