UNBELIEVABLE:- Charge Your Phone By Shouting At It – See How It Works

Charge your phone by SHOUTING at it:
Gadget converts sound waves from speech
into five volts of energy for your mobile.
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.
Their prototype device, which is about the
size of a mobile phone, uses zinc oxide to
convert vibrations caused by sound into
electricity.

UPDATE: HOW TO USE MTN BIS ON
ANDROID & PC USING SS & TUNNELGURU
(CONFIRMED)

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.
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.
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.