Imagine a world where you can effectively block sound without the need for bulky and sometimes costly insulation. A ...

There may be new hope for people with noisy neighbors. Scientists at MIT have developed a method of using thin sheets of fabric to either cancel or block sound – in the latter case, the racket even ...

DURHAM, N.C. -- Researchers at Duke University and Aalto University (Finland) have constructed a "meta-mirror" device capable of perfectly reflecting sound waves in any direction. The ...

Metamaterials researchers have created a thin plastic structure with geometric details allowing it to control the redirection and reflection of sound waves with almost perfect efficiency.

June 26 (UPI) --Scientists have developed a superior sound-reflecting material. The "retroreflector" technology can bounce back sound waves in the direction they came from. Previous retroreflectors ...

Acoustic waves in gases, liquids, and solids usually travel at an almost constant speed of sound. So-called rotons are an exception: their speed of sound changes significantly with the wavelength, and ...

The metamaterial structure the team designed is made of a single linear elastic material. (Courtesy: Yi Chen, KIT) An unusual type of sound wave that can travel backwards in space and has previously ...

Researchers have succeeded in controllably propagating sound waves along the boundaries of topological metamaterials using a modulation technique that breaks time-reversal symmetry. This feat, which ...

Walk into a bustling restaurant at dinnertime, and the energy is undeniable. But if the sound climbs too high, that lively ...

Rendering things invisible sounds like it belongs in the realm of Harry Potter, but it is technically possible. Researchers from TU Wien in Austria have developed a new process that allows light waves ...

Sept. 24 (UPI) --To develop the next generation of quantum technologies, scientists need to find materials with unique optical and electrical properties. Often, when materials are put under stress and ...

Researchers have constructed a 'meta-mirror' device capable of perfectly reflecting sound waves in any direction. The proof-of-principle demonstration is analogous to looking directly into a mirror ...