Researchers have uncovered a way to control material behavior using sound. In a study ...

Reverberant sounds made in an empty environment are the result of sound waves bouncing off hard, flat surfaces, as governed by basic principles of the science of physical acoustics. When completed, ...

The interface between two facets of an artificial material known as a “Weyl phononic crystal” can not only negatively refract an airborne sound wave, it does so without reflecting it at all. This ...

A tailor-made structure may make microwave WiFi signals more transmittable through walls without reflection, according to new research. This works in much the same way as anti-reflective coating on a ...