A new technology may lead to completely soundproof homes, cars, or any other space using a meta-material called sonic crystals. One day, I may be able to build that home studio without complaint from the neighbors. Or my sex dungeon.Developers say 200 layers of this material, formed by arrays of tiny cylinders, will shield an object from any noise, while thinner implementations will achieve insulation from certain frequencies. The mathematics behind cloaking has been known for several years, but what hasn't been available for sound is the sort of materials you need to build a cloak out of until now. The artificial composites be engineered to produce specific acoustical effects.
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