Sound-shaping super-material could transform personal audio

摘要

A super-material that bends, shapes and focuses sound waves that pass through it has been created by scientists. The creation pushes the boundaries of metamaterials - a new class of finely-engineered surfaces that perform nature-defying tasks. These materials have already shown remarkable results with light manipulation, allowing scientists to create a real-life version of Harry Potter's invisibility cloak, for example.