Sound is energy and some people are looking at using noisy traffic sounds to generate usable electric energy:Soundscrapers would be constructed near major motorways and railroad junctions, prime locations for capturing ambient vibrations. A sound-sucking material would cover the exterior of the tower with a double-skin layer, held away from the façade on a metallic frame.For each Soundscraper, 84,000 electro-active lashes would cover the metal frame and pick up noise from cars, trains, pedestrians and passing planes. Each of the lashes is armed with sound sensors called Parametric Frequency Increased Generators. Once the noise is picked up, an energy harvester converts the vibrations to kinetic energy. Transducer cells then convert the energy to electricity, which is stored or distributed to the grid for regular electric use. The team estimates that just one Soundscraper could produce 150 megawatts of energy in a densely populated city, which roughly converts to 10% of the lighting needs of Los Angeles. The clean energy would also help the city reduce carbon emissions and reliance upon fossil fuels. Several Soundscrapers could drastically offset the electrical needs of a metropolis.Read more: Soundscraper Transforms Vibrations from City Noise Pollution into Green Energy | Inhabitat - Sustainable Design Innovation, Eco Architecture, Green Building Interesting! I know from engineering that if a machines make noise, then it is losing energy to make the noise. The quieter the machine, the less energy wasted.Terviseks,jaagu
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