For those of you who frequently travel and hard to find a power outlet to charge the phone battery is discharged, it is very disappointing is not it? Now do not bother to charge the battery via the power outlet, only through voice phone battery can be charged back. Technology is cool is not it? Yes, the phone ran out of batteries have become a common complaint in today's life. It is not uncommon to make the mobile phone users annoyed. But a new discovery seems to be able to become an alternative solution for this problem.
As the Telegraph's website, the engineers in the field of electro from Sungkyunkwan University in Seoul, South Korea, to develop a new technique that can convert sound into electrical energy. So, the phone battery can be charged or recharged when the user was talking using a cell phone.
This technology also can use background noises to recharge the battery when not in use. From the start the music until the noise of motor vehicles, could become energy for mobile phones.
"A number of approaches to 'scavenge' energy from the surrounding environment, the more intensively developed," said Dr. Sang-Woo Kim, one of the researchers.
"The voice, which is always present in our environment everyday and still be ignored as a source of energy. This then motivates us to realize such a power plant that converts the sound of conversation, music or noise into electrical energy, "he explained.
This technology uses a piece of zinc oxide is inserted between two electrodes. There is a device that absorbs the sound on the top and will vibrate when sound is absorbed. This causes the zinc oxide depressed and this movement produces electric current that can be used to recharge the phone battery.
So far, the findings of Dr. Kim and his team had to change the votes of 100 decibels - the equivalent of traffic noise - to generate 50 millivolt electricity. (TeknologiNet)
