Print 22 comment(s) - last by Spookster.. on Sep 15 at 4:06 PM

Scientist use household product to fuel sound wave advancement.

Voice calls may be the key to a longer battery life for cell phones.  A group of Korean scientists are now working on a way to power up cell phone batteries with just a little conversation.  

Researchers Young Jun Park and Sang-Woo Kim led the team who discovered how to utilize the prime ingredient in calamine lotion -- zinc oxide --  to develop a nanomaterial that turns sound waves into electricity.

After creating a field of nanowires sandwiched between two electrodes, the group was able to produce a current of 50 millivolts by blasting the field with sound waves of 100db (a normal conversation is 60-70db), according to

"Just as speakers transform electric signals into sound, the opposite process — of turning sound into a source of electrical power — is possible. Sound power can be used for various novel applications including mobile phones that can be charged during conversations and sound-insulating walls near highways that generate electricity from the sound of passing vehicles," said Young Jun Park and Sang-Woo Kim.

In addition to the possibility of using this research to help keep phones charged in the future, the technology is also being considered as a means to add power to electrical grids during rush hour.

Young Jun Park and Sang-Woo Kim presented their findings in an article which appears in the 
 Advanced Materials journal.

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sound powered phones
By jnemesh on 9/14/2010 5:36:24 PM , Rating: 2
On my maiden voyage aboard the USS Mahan, I was sent scurrying around the ship to find batteries for the sound powered phones. It took me 2 hours to figure that one out! :) Seriously though, the Navy has been using sound powered phone systems (shipboard closed circuit communication) for YEARS. Getting electricity from your voice is nothing new, and if it were practical to charge devices, we would have seen it long ago. 2 points for an interesting study...let me know when we have anything USEFUL from it!

RE: sound powered phones
By Spookster on 9/14/2010 7:18:58 PM , Rating: 2
Yeah those batteries are model# 1D10T. They are usually stored near the aft of the ship in the basement under the foc'sle. :)

RE: sound powered phones
By priusone on 9/14/2010 11:51:08 PM , Rating: 2
Near the grid squares or keys for the HMMPWV's?

RE: sound powered phones
By Spookster on 9/15/2010 4:06:41 PM , Rating: 2
Or just ask the first Chief Petty Office you see where to find them but you will want to use the proper nomenclature for the batteries which is PRC-E7. So just tell the Chief you are looking for a PRC-E7.

"I'm an Internet expert too. It's all right to wire the industrial zone only, but there are many problems if other regions of the North are wired." -- North Korean Supreme Commander Kim Jong-il

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