Imagine if your cell phone never needed to be recharged. The only caveat is that you have to actually use it by making phone calls, whether it's to your mother who wants to know why you never call, or your significant other to tell them how you much you miss them. Sound a little far fetched? There's new research out there that promises to charge your phone using your voice.
According a report in the U.K.'s Telegraph, electrical engineers at the institute of nanotechnology at Sungkyunkwan University in Seol, South Korea, have developed a new technique that turns sound waves into electricity. This would allow a cell phone to stay charged simply by carrying on a conversation, and by picking up background noise. It can even convert music into electricity when not in use.
The Trick :
The magic trick involves sandwiching strands of zinc oxide between two electrodes. There's a sound absorbing pad on top that vibrates when sound waves hit it, which causes the zinc oxide to compress and release, generating electrical current that can be used to charge a battery.
According a report in the U.K.'s Telegraph, electrical engineers at the institute of nanotechnology at Sungkyunkwan University in Seol, South Korea, have developed a new technique that turns sound waves into electricity. This would allow a cell phone to stay charged simply by carrying on a conversation, and by picking up background noise. It can even convert music into electricity when not in use.
The Trick :
The magic trick involves sandwiching strands of zinc oxide between two electrodes. There's a sound absorbing pad on top that vibrates when sound waves hit it, which causes the zinc oxide to compress and release, generating electrical current that can be used to charge a battery.
