#sound-waves

#sound-waves

Cicadas generating 400 sound waves per second have ecological benefits like aerating lawns and improving water filtration. [ more ]

Constant city noise can lead to long-term health problems, but a new study shows that strategically pin-pricked ping-pong balls can act as a sound insulator.

By drilling holes in the ping-pong balls, researchers created resonant cavities that filter out specific frequency bands of noise, dampening the overall sound. [ more ]

Researchers at Concordia University have developed a new direct-sound printing technology that allows for 3D printing behind a barrier.

The technology has the potential to enable minimally invasive tissue engineering and industrial repairs in hard-to-access places. [ more ]