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Charge your phone by SHOUTING at it

Segun Balogun

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Charge your phone by SHOUTING at it

Charge your phone by SHOUTING at it: Gadget converts sound waves from speech into five volts of energy for your mobile

  • Prototype created by Queen Mary University of London and Nokia
  • The device, which is about the size of a mobile phone, uses zinc oxide
  • Zinc oxide produces electricity when subjected to mechanical stress
  • Stress could come from vibrations in sound that move tiny rods
  • Invention was inspired by research which found playing pop and rock music improves the performance of solar cells

 

As the class Governor of my department at Yaba college Of technology, It seems phone batteries always die at the same moment you need to make an important call like calling a Lecturer , before class or after class.

 

But while shouting at your mobile in frustration might seem pointless, a new gadget could soon mean your screams won’t be in vain.

 

Researchers in London have created a new technology that uses sound, such as chants at a football ground or chatter in a coffee shop, to charge up mobile phones.

Charge your phone by SHOUTING at itWhile shouting at your mobile in frustration might seem pointless, a new gadget could soon mean your screams won’t be in vain. Researchers in London have created a new technology that uses sound, such as chants at a football ground or chatter in a coffee shop, to charge up mobile phones

  • Their prototype device, which is about the size of a mobile phone, uses zinc oxide to convert vibrations caused by sound into electricity.
  • The invention was inspired by previous research at Queen Mary University of London (QMUL), which found playing pop and rock music improved the performance of solar cells.
  • This was because the sound vibrations triggered the movement of material in the solar cell that caused it to improve efficiency by up to 40 per cent.
  • Developing this research further, Nokia worked with the QMUL team to create an energy-harvesting prototype that could be used to charge a mobile phone using everyday background noise.
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Nokia worked with the QMUL team to create an energy-harvesting prototype that could be used to charge a mobile phone using everyday background noise. Pictured here is the zinc oxide used in the device

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  • The team used the key properties of zinc oxide, a material that when squashed or stretched creates a voltage by converting energy from motion into electrical energy, in the form of nanorods.
  • The nanorods can be coated onto various surfaces in different locations making the energy harvesting versatile.
  • When this surface is squashed or stretched, the nanorods then generate a high voltage.
  • The nanorods respond to vibration and movement created by everyday sound, such as our voices. 
  • Electrical contacts on both sides of the rods are then used to harvest the voltage to charge a phone.
  • In order to make it possible to produce these nanogenerators at scale, the scientists found innovative ways to cut costs in the production process.

Firstly, they developed a process whereby they could spray on the nanorod chemicals – almost like nanorod graffiti – to cover a plastic sheet in a layer of zinc oxide.

When put into a mixture of chemicals and heated to just 90°C, the nanorods grew all over the surface of the sheet.

Secondly, gold is traditionally used as an electrical contact, but the team were able to produce a method of using cheap and cheerful aluminium foil instead.

The final device is the same size as a Nokia Lumia 925 and generates five volts, which is enough to charge a phone.

‘Being able to keep mobile devices working for longer, or do away with batteries completely by tapping into the stray energy that is all around us is an exciting concept,’ said Dr Joe Briscoe from QMUL.

‘We hope that we have brought this technology closer to viability.’

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The device is the same size as a Nokia Lumia 925 (pictured) and generates 5 volts – enough to charge a phone

_Capture61techcribng‘Being able to keep mobile devices working for longer, or do away with batteries completely by tapping into the stray energy that is all around us is an exciting concept,’ said Dr Joe Briscoe from QMUL. Pictured is the voltage test to see how much energy the device could harvest 

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4 Comments

4 Comments

  1. Emmanuel

    August 20, 2014 at 9:36 am

    Hello Segun,

    This is something with all sincerity is new to me. This is my first time hearing of this and I will try it out and see the end result.

    • Segun Balogun

      Segun Balogun

      August 20, 2014 at 3:08 pm

      Hi emmanuel,
      That is technology for you ……..
      it is advancing , and which just have to follow it…….
      Thanks for your contribution.

  2. Erik Emanuelli

    August 21, 2014 at 9:21 am

    Just came here from Klinkk.
    I was attracted by the title of this post, Segun.

    Wow, technology progress is a great product of humanity.

    It’s amazing how fast it goes the technological breakthroughs!

    Thanks for sharing, very interesting!

  3. Segun Balogun

    Segun Balogun

    August 21, 2014 at 3:58 pm

    Its alryt bro……
    Thanks for your contribution

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Android

Tecno i7 will sweep you off your feet

Segun Balogun

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Tecno i7 will sweep you off your feet

Ever wondered why some Chinese companies are able to give you a smartphone loaded with high end specs and decent build quality, at a price way less than what world famous brands do? Chinese smartphones are often cheaper because  they don’t have  the same overheads as brands that have physical stores. Did you see the announcement of the Galaxy S6? Have you heard of the contract Robert Downey Jr signed last year with HTC? Or that Sony wants to promote the Xperia Z5 in a new James Bond film? These things cost a fortune. A fortune that you, the customer, end up paying. Tecno must have fallen on your ear. Browse https://jiji.ng/mobile-phones/tecno, where you can find an affordable Tecno smartphone in your city. So check this Tecno i7 to see whether, it really stands a chance in the already overcrowded african smartphone market?  

Design

image5

 

The Tecno I7 is a modern looking gadget,  that is very similar to  other smartphones in  the market. On the right side  are the power  and volume buttons. Tecno has given the power key a textured finish, which helps distinguish it from the volume keys just by feel.While, the front side looks expensive, the rear panel, looks borrowed, this is where i7 loses points is in terms of originality.  

Display

Tecno i7 will sweep you off your feet

Tecno i7 comes with 5-inch HD IPS display with a resolution of 1080×1920 pixels, which gives bright  and decent colors while watching movies, youtube or web browsing. You can also regulate the brightness manually or choose automatic adjustment option.  

Hardwear and softwear

Tecno i7 will sweep you off your feet

The I7 runs a heavily skinned version of Android called Hi OS and powered by a 1.3 GHz  MediaTek processor paired up  with 4GB of RAM. The smartphone has 32GB of internal memory along with a duo SIM card slot as well, wish you expand  the memory storage. It supports 3G, 4G and other connectivity options include Wi-Fi and Bluetooth. Fingerprint sensor is accurate and responsive.  

Camera

Tecno i7 will sweep you off your feet

The front camera has  a resolution of 13 megapixels paired with with a Quad LED flash. It offers good colour and fast shutter speed.The  camera is snappy and gives  you easy access  to some of the options right from the main screen. You can swipe to switch from photo capturing mode to video mode, as well as change to  other modes like Beauty and Panorama. Unfortunately,  the front 16 MP  camera with Front LED flash promises  a lot on paper, but fails to deliver.

Battery

Tecno i7 battery

One the strongest points of the Tecno i7 is its battery. The smartphone equipped  with a 4,000mAh battery  that supports fast charging. The Rocket Charge will get you 80% charge within 70  minutes.

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Android

Why You Still Need An MP3 Player

Segun Balogun

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Only five or ten years ago MP3 players were the most popular devices for listening to music, but as mobile phones became more and more advanced, MP3 players started to lose their popularity. However, there are still plenty of reasons to choose an MP3 player over a music app in your smartphone. You can buy MP3 players and lots of other electronics in Nigeria at unbelievably low prices by simply following this link: https://jiji.ng/electronics

Low cost gadget

Even the latest MP3 player model is still cheaper than a mid-range smartphone, so if you often break or lose your device, an MP3 player can become your low-risk investment. For example, it may turn out that replacing the screen on your iPhone costs as much as a new iPod, so dropping your device on the ground can have different consequences depending on which gadget you prefer.
jiji mp3 player 2

Take the most out of your music collection

Most music fans have huge collections of MP3 files on their computer – they can be downloaded from the Internet or converted from music CDs. An MP3 player becomes the most suitable device for playing these files. Modern smartphones are mostly designed for using music apps and subscription services, while transferring and organizing MP3 files on your phone can turn out to be quite tricky. An MP3 player will let you effortlessly select music by artist, album or track title, or even release year. And don’t forget the super convenient playlist feature!
jiji mp3 player 3

Perfect for active lifestyle

Keeping fit and leading an adventurous life are today’s biggest trends, and music is an essential component of active lifestyle. No matter what you’re into – running, going into the gym, hiking, cycling, or climbing – an MP3 player is a much lighter and smaller device than your mobile phone, which means it’s much more convenient to carry around. Plus, many MP3 players like the iPod Shuffle have special clips, so you don’t have to keep them in your pocket.
jiji mp3 player 4

Save battery life

One of the biggest problems of smartphone users is the battery that dies in the middle of the day even when you’re not actively using the phone. Obviously, listening to music for hours has an even more drastic effect on the battery life. MP3 players, however, are known for lasting for days while playing music non-stop. That way you can take the pressure off your phone’s battery while enjoying your favorite tunes wherever you are without worrying about the battery life of your devices.

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Android

Mobile app to curb vandalism, power theft Launched in Nigeria

Segun Balogun

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In a bid to curb the disturbing nuisances that stem from criminality in our society, Web Asset Limited, a Lagos-based technology company, has launched an interactive crime reporting system tagged ‘Hawk Eye’.

Hawk Eye is a mobile app that uses an innovative technology to checkmate crime in Nigeria.

The launch which took place in Abuja, was a beta launch piloted by Mr. Kayode Aladesuyi, chairman Web Asset Ltd., and developer of the Hawk Eye app.

The pilot launch was aimed at demonstrating how the app could be useful in finding a solution to the menace of utility and energy theft plaguing the electricity sector.

The demonstration highlighted the distinctive features of the app like the ability to select crime types, capture and send videos, images or text messages of the crime and direct these to appropriate security authorities for immediate action.

He added that the system offers a crime management platform with a robust command and control centre dashboard to display location of crime scenes and the nearest officers to respond to the reported crime.

The Hawk Eye system is the first national crime reporting system in the country and is one of the ways in which the public can lend its support to reinforce the governments’ unrelenting efforts in safeguarding lives and properties across the country.

Mr. Aladesuyi, explained that beyond reporting utility theft for the energy sector, the app had been developed with the potential to work with different security agencies and institutions in the country and deal with crime at all levels from kidnapping, vandalism, civil unrest, terrorism, extortion, etc.

He said: “We are always looking for better and more contemporary ways of safeguarding lives and private properties, including public utilities. The app which is a niche crime reporting app, will address the infrastructural gap in the area of emergency response system through internet-enabled mobile phones. The app also provides an alternative, fast and easy way of tackling security issues with exposure to lesser risks.”

“Hawk Eye enables officers in the field to receive dispatched incidents and option to file reports in real-time even while in remote locations. Through its unique offering of Global Announcement feature, the app allows communication with different communities on national emergencies, most wanted persons, among other emergencies. In addition, Hawk Eye provides a FindMe feature for users to notify Rapid Response units or family members in the event of kidnapping incidents,” he said.
hawk-eye-cam
Ernest Mupwaya, managing director of Abuja Electricity Distribution Company (AEDC), in his remarks said, “Energy theft is crippling the revenues of electricity distribution companies and impacting negatively on growth.” He explained that the distance and communication gaps were hindrances to checking criminal activities in the sector, adding that the app, as a security enabler would bridge these gaps.
Download Hawkeye on Google Play store By searching for Hawkeye Nigeria or click the Link below
https://play.google.com/store/apps/details?id=crimereporting.hawk.security&hl=en

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