In their search for a highly efficient renewable source of energy, scientists are trying all that they can. Apart from going for solar and wind energy, they are also exploring many other alternatives as well. While doing this, they have provided us with many alternatives. From tidal energy, geothermal energy to utilizing even Hydrogen Fuel Cells, they have found many viable alternatives. However, now they are going even further with their knowledge. Scientists have even found a way for generating electricity from sound. Here’s everything you might want to know about it.