Thousands of marine species from microscopic zooplankton to the largest cetaceans rely on sound for survival and many have ...

NASA has released an eerie and unsettling audio clip of sound waves rippling out from a supermassive black hole located 250 ...

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 ...

NASA created a haunting audio clip of sound waves rippling out of a supermassive black hole, located 250 million light-years ...

NASA has released an eerie audio clip of sound waves emanating from a supermassive black hole in the Perseus galaxy cluster, ...

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.

In the experiments, the material serves a double function, Bilal explains, by being a perfect sound vacuum and wave amplifier at the same time. "A flat band in a band structure is a very special ...

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.