i just read the news at detik.com this is amazing news, it says that there a engineer from Sungkyunkwan University Seoul south korea, he is researching to make a charging battery handphone is just with a voice, so if this research 100 % success we don't need to worry if our battery Handphone is low or running out at the time no electricity grid where we are, we can charge it just with our voice, heheheh once again no need electric gray like we use to.
how this technology working? one of engineer Dr. Sang --woo Kim say this technology take approach with environment which as long is ignoring by us that is a voice.
this technology use a string zinc oxide which is slipping between 2 electrode and in it installed a element which can absorb a voice in and at the top will vibrate as the sound is coming and will be absorbed this element. this condition will bring electric which can be use to refill the battery.
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