In a noisy environment, such as at work or when travelling, many people resort to wearing noise cancelling headphones to reduce the level of background noise and to achieve a level of concentration or ...

Save your breath: A new way to make bubbles requires only sound waves. Scientists made the bubbles in levitated drops of liquid, held aloft with sound waves. Tweaking the sound waves caused the ...

Sound is energy in the form of a wave. In the dark depths of the sea, whales and other marine mammals use gentle sound pulses to communicate about feeding, mating, and to keep their groups together.