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| ilustrastion |
Run out of battery seems to be a common thing today. Not infrequently, this makes unhappy mobile phone users because of its activity stopped. The good news, these new findings will be alternative solutions.
The technicians electro SungkyunkwanUniversity in Seoul, South Korea, developed a new technique to convert sound into electrical energy. So the phone's battery can be recharged when the user speaks using a mobile phone.
Remarkably, this technology also can take advantage of background noises in order to recharge the battery when not in use. As quoted by the Telegraph, from the sound of music to noise energy can be a vehicle for mobile phones.
"A number of approaches to search for energy in the environment more intensively developed," said Dr. Sang-Woo Kim, one of the researchers.
The voice that always exist in the environment are still overlooked as a source of energy, he added.
"This is what motivates us realize the power that can change the sound of conversation, music or noise into electrical energy," she added.
These technologies use a piece of zinc oxide is inserted between two electrodes. At the top, there are sound absorbent device that will vibrate when sound is absorbed.
This vibration causes the oxide zinx was depressed and generate electricity to recharge the battery.
Until now, the findings of Kim and the team was able to change the votes of 100 decibels (equivalent to traffic noise) to 50 millivolt electricity. [Mor]
Via Inilah.com
