Chuck Norris can charge phones with his voice, you can't

10 May, 2011
Yesterday we stumbled upon the news that Sang-Woo Kim of Sungkyunkwan University found a way to convert noise to electricity, which can in turn be used to charge your cell phone. As usually when we come upon...

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  • Waiting Galaxy S 2
  • sEK
  • 11 May 2011

Reading the pros and cons regarding this article, I'm agree with the article. The amount of electricity generated is neglible and impractical.

As mentioned in the inventor's claim it only generated 50 miliVolts, most mobile phone battery now is 3,7 Volts which equal to 3700 miliVolts. Not even considering how tiny Current (Amps) it can generate.

Yet it's not completely impossible, I doubt it'll be mass produced for at least 50 years to come. And I do know, what I'm talking about for i completed electrical enginering with honours.

    • r
    • redX
    • w46
    • 11 May 2011

    Why don't they use kinetic energy, our phones vibrates a lot ...isn't it ??

      • D
      • AnonD-1124
      • ftV
      • 11 May 2011

      okay, I'm fine reading insane comments.let me put this straight. This stupendous claim is not only impossible but there is absolutely no possibility of it being possible in the distant future. In fact, not even God our aliens from space would make it possible.

      Why?

      A microphone is a resistor.resistors di don't produce electricity, they consume it. A microphone works by varying it's resistance with fluctuations in pressure on it's surface. You pass electricity into it, it consumes part of It and then sends the rest out.

        • ?
        • Anonymous
        • fja
        • 11 May 2011

        How nice would it be if the writer of this article were to also say, "I'll eat my hat if they ever came up with something that actually works" Oh wait hasn't history proven that such narrow minded thinking caused an increase in hat production ;-)

          • ?
          • Anonymous
          • Sa%
          • 11 May 2011

          i live next to niagara falls. i am lucky. i will never use chargers for now on

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            • AnonD-8217
            • sxt
            • 11 May 2011

            You can't put a dot to this one, innovation today is so fast that you can't imagine what will happen next. Its amazingly how they start that one although it is given from a long time. I mean, how resourceful they are. a good start to innovate! lets just wait and see what surprises they have next time..

              • D
              • AnonD-2565
              • fm3
              • 11 May 2011

              Jelly, 10 May 2011I agree that physics will not allow this to take place, how... moreFINALLY, someone know what i'm talking about
              cheeeers

                • D
                • AnonD-2565
                • fm3
                • 11 May 2011

                AnonD-903, 10 May 2011Well, if "wait and see" then it's not _so_ bad (c... moreIf I told you that using high frequency sound waves, maybe above 20000Hz, will it be so impossible to imagine charging the phone with it.

                  • D
                  • AnonD-2565
                  • fm3
                  • 11 May 2011

                  blah, 10 May 2011your cliché remark about laws meant to be broken is ... moreyes, still observations can go wrong, human error is everywhere.

                    • ?
                    • Anonymous
                    • 2@R
                    • 11 May 2011

                    Nothing is impossible. Last time super computers that occuppied your whole bedroom or living room is now sitting on a desktop in front of you. Now even become smaller and smaller like the phone we using got such computing power. So let just look on the bright side of things and keep a open mind.

                      • D
                      • AnonD-542
                      • fCR
                      • 11 May 2011

                      Jelly, 10 May 2011I agree that physics will not allow this to take place, how... moreNothing is impossible, I agree but not everything is practical, which you should agree to. Being able to produce electricity through conversion of sound waves is possible but the amount that it can produce even with a 100% efficient engine is another thing. Just being able to produce food isn't enough, one has to produce it high enough to meet the requirements of a human colony. Same goes here....

                        • D
                        • AnonD-542
                        • fCR
                        • 11 May 2011

                        unknow, 11 May 2011y not use kinetic movement covert to energy? same like kine... moreCause phones aren't like watches. Watches eats too little energy (maybe 10k times less or even more). Even if it does charge off, the discharge rate of a phone will cancel everything out.

                          • p
                          • pardeep jangra
                          • 2WY
                          • 11 May 2011

                          i like this project.

                            • D
                            • AnonD-4598
                            • 11 May 2011

                            MR.change, 10 May 2011No one is undermining the work of these researchers ,and I'... more"why don't they just find a way to make a solar panel integrated into the device's screen?"

                            were you referring to this: http://forums.macrumors.com/showthread.php?t=489123

                              • 5
                              • 5ushi
                              • vxB
                              • 11 May 2011

                              GSMArena, with an attitude like that we'll never continue to innovate. Heck, with a mindset you are implying we should still be on those Motorola bricks from the 1980s for all you care.

                              At the end of the day, minute research discoveries and the curiosity of man is what allows humans to continue innovating, to continue discovering, to continue being... well, human. It's what sets us apart from every other living thing on this planet.

                              Yes, ok. At its current state the technology is this charger rather useless at anything but being used as a microphone. But that don't give you the right to put it down because of it. An example; the Wrights brothers copped a laughing when they tried to make a flying machine but hey, look what happened. Granted the very first flying distance was rather short but the thing is, they did what was THOUGHT to be impossible (ie, fly). And skip ahead a century and look at where we are today; the concept of flying-man is radically innovated and different to back in the days of the Wrights. And for all I care (and others WILL agree), every single invention / discovery started out that way.

                              So GSMArena, I suggest you think about it. Research like this is what gets us places, and what gives YOU the newest and latest devices to review. And you have absolutely NO right to put it down in the manner that you have until the research itself has been dropped or cancelled. Then you can voice your opinion to the world. Articles like above is just going to slow down fellow researchers and may even discourage them from brining the main-stream consumer more innovations in the future. And in my books, that will be rather detrimental for you too, being a tech site and all.

                                • R
                                • Roark
                                • t}B
                                • 11 May 2011

                                Can someone post energy efficient,Green alternatives of using a Mobile ph. (e.g that Samsung ph.)

                                  • A
                                  • Arch. Ejhay_kun
                                  • t7X
                                  • 11 May 2011

                                  you can't put a dot to this one, innovation today is so fast, that you can't imagine what will happens next. Its amazingly how they start that one although is given from a long time. I mean, its a good start.. Lets wait and see what they have next time.. Ü

                                    • V
                                    • Van Helsing
                                    • 2@a
                                    • 11 May 2011

                                    Every new finding is important, not optimized.

                                      • u
                                      • unknow
                                      • 9xQ
                                      • 11 May 2011

                                      y not use kinetic movement covert to energy? same like kinetic watch?

                                        • ?
                                        • Anonymous
                                        • Ia9
                                        • 11 May 2011

                                        but in a few years when mobiles spend 1/10 of energy than now....i think its posible