The process is very similar to ultrasound imaging, however the sound waves used are within normal hearing range, and they are used to identify objects rather than internal structures. This ...

Thousands of marine species from microscopic zooplankton to the largest cetaceans rely on sound for survival and many have evolved unique oral and aural adaptations. Understanding them better could ...

The legacy of sleep sounds, white noise has lulled people to sleep for ages. Because white noise encompasses all of the ...

So-called Rayleigh–Bloch waves can release enormous amount of energy that can damage technical systems under certain ...

Let's go back to those sound waves from before. See, sound waves, like light waves, have peaks and valleys. Noise-cancelling headphones have their own built-in microphone. And when the headphone's ...

Researchers have developed a novel experimental platform to measure the electric fields of light trapped between two mirrors ...

Interestingly, Princeton University engineers have created innovative 3D structures from a single piece of material by combining the art of paper cutting and folding. They have developed 3D structures ...

while turbulence of laser radiation in optics occurs as light is scattered by lenses. Turbulence can also occur in sound waves that propagate chaotically in certain media, such as superfluid helium.

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens.