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Charge your phone without plugging in

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London: Now, you won’t have to look for a socket to charge your phone or a laptop. Researchers have developed a wireless-power transfer (WPT) technology that can charge mobile phones from a distance.mobile-or-cell-phone-smartphone-contact-icons-vector-1075197

The WPT technology developed by researchers at the Korea Advanced Institute of Science and Technology (KAIST) works just as Wi-Fi works for internet connections.

It allows mobile devices to be charged at any location and in any direction, even if the devices are away from the power source.

With this technology, your device will automatically get charged without being tethered to a charger if you are in the designated area where the charging is available, like the Wi-Fi Power zone, the researchers said.

The system can charge multiple devices simultaneously and in all directions up to half a meter away from the power source, said lead researcher professor Chun T. Rim.

The results were published in IEEE Transactions on Power Electronics. Rim’s team has successfully showcased the technology on at a lab on KAIST’s campus.

Until now, all wireless-charging technologies have had difficulties with the problem of short charging distance, mostly less than 10 cm, as well as charging conditions that the devices should be placed in a fixed position.

For example, the Samsung Galaxy S6 could only be charged wirelessly in a fixed position, having one degree of freedom.

“Our transmitter system is safe for humans and compatible with other electronic devices. We have solved major issues of short charging distance and the dependence on charging directions,” Rim said.

(IANS)

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  • Jagdish Kumar Bhutani

    I wish more work is done at solar charging systems too…! That shall be a watershed era and the energy saver breakthrough. Till then we are energy guzzlers as always.

  • Jagdish Kumar Bhutani

    I wish more work is done at solar charging systems too…! That shall be a watershed era and the energy saver breakthrough. Till then we are energy guzzlers as always.

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Vintage Phone Museum: The museum having rare collection of classic cell phones opens in Slovakia

The museum has around 1,500 cell phone models

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Old Nokia mobile phones are placed on a shelf inside of a private museum of phones in Dobsina, Slovakia
Old Nokia mobile phones are placed on a shelf inside of a private museum of phones in Dobsina, Slovakia. VOA

Dobsina, Slovakia, September 10, 2017:

As new smartphones hit the market month in month out, one Slovak technology buff is offering visitors to his vintage phone museum a trip down memory lane – to when cell phones weighed more than today’s computers and most people couldn’t afford them.

Twenty-six-year-old online marketing specialist Stefan Polgari from Slovakia began his collection more than two years ago when he bought a stock of old cell phones online. Today, his collection at the vintage phone museum boasts some 1,500 models, or 3,500 pieces when counting duplicates.

The vintage phone museum (website: http://www.mobilephonemuseum.org/), which takes up two rooms in his house in the small eastern town of Dobsina, opened last year and is accessible by appointment.

The collection includes the Nokia 3310, which recently got a facelift and re-release, as well as a fully functional, 20-year old, brick-like Siemens S4 model, which cost a whopping 23,000 Slovak koruna – more than twice the average monthly wage in Slovakia when it came out.

“These are design and technology masterpieces that did not steal your time. There are no phones younger than the first touchscreen models, definitely no smartphones,” said Mr. Polgari.

“It’s hard to say which phone is most valuable to me, perhaps the Nokia 3510i Star Wars edition,” said Mr. Polgari – who uses an iPhone in his daily life. (VOA)

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