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.

Sound is the vibrations of an object. It is transmitted in the form of waves with alternate increase and decrease in pressure. A vibrating object compresses the surrounding air molecules making them ...

For more than 50 years, scientists have theorized that a special kind of reflection known as time reflections have existed in the realm of quantum mechanics. However, proving the existence of this ...

Waves close wavesVibrations that transfer energy from place to place without the transference of matter. - including sound and light - can be reflected at the boundary between two different materials.

Realistic sound rendering can directly impact the perceived realism of users of interactive media applications. An accurate acoustic response for a virtual environment is attuned according to the ...

Measurements of the sound-pressure reflection coefficients of typical scenery-flat materials have been made. Substantial agreement has been found between two methods of measurement with regard to the ...