Wednesday, 22 Sep, 2010 Technology
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Latest Invention: Technology that Could Power Cell Phone Using Sound Waves

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Sound creates vibrations that in their turn generate energy when travelling through a particular medium. This energy is called sound energy. Speakers use electricity to produce sound waves, but Korean researchers used zinc oxide to do the opposite - transform sound waves into electricity.

The team hopes that their latest invention could be used to convert the sound waves of the surroundings to power a cell phone, for example.

Young Jun Park and Sang-Woo Kim, authors of the article published in journal Advanced Materials, said that players use electricity to generate sound waves, but they wanted to do the reverse and produce power from sound waves.

It is worth mentioning that piezoelectrics are materials that can convert mechanical energy into electricity. They create an electrical charge under stress. Scientists bent zinc oxide, which is the key ingredient of calamine lotion, into a field of nanowires that were squeezed between two electrodes. Then the team subjected the pack to sound waves of 100 decibels, thus generating electrical current of 50 millivolts, informs Discovery News.

A cell phone needs a few volts to operate, which means that the current technology is so far useless. However, researchers feel optimistic about their latest invention, saying that the technology will evolve to eventually be used to power portable devices, such as cell phones. They also hope that their technology could be used to generate electricity from rush hour traffic noise.

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Comments:

34 votes

//10 May 01, 2012 02:17 PM | posted by: pinky girl
i want make a relationship with this guy
33 votes

//9 May 01, 2012 02:16 PM | posted by: alan
it sounds good
can reduce environment problems if build this invention
25 votes

//8 Jan 04, 2012 11:29 AM | posted by: Priya Raghuvanshi
Its great...... Hopefully it may be d cheaper nd easier source... Which gona use everywhere in future.
24 votes

//7 Jan 03, 2012 05:10 PM | posted by: muskan arora
this invention seems to be hopeful in future. it sounds interesting!
21 votes

//6 Nov 12, 2011 07:37 AM | posted by: MyNameIsTifa
This invention is really interesting. It's pretty good, specially in feild of technology. Sounds fun!
49 votes

//5 Apr 10, 2011 09:49 AM | posted by: subendu
it's realy intresting!
26 votes

//4 Mar 23, 2011 08:40 PM | posted by: saurabh singh
It is realy exciting
21 votes

//3 Feb 16, 2011 02:41 PM | posted by: jyoti
its good..... in field of technology..
21 votes

//2 Jan 26, 2011 03:20 PM | posted by: santosh
its feel attractive
29 votes

//1 Jan 01, 2011 07:19 AM | posted by: zink
Guys u have up with good invention...Work more on it and i am sure u can develop it.

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