Many asymmetric absorbers are currently based on a single-port system, where sound enters one side and is absorbed before a rigid wall. In this design, however, light and air are unable to pass ...

Heavy curtains made from thick material such as velvet are often needed to keep noise out of indoor environments, but Swiss researchers have come up with another option. The Empa researchers, in ...

In everyday life, designing spaces that both let air flow and absorb sound can be a tricky balancing act. Usually, materials that allow air to pass through—like vents—also let sound escape, making it ...

We may receive a commission on purchases made from links. Who actually invented the pool noodle? It has been four decades and ...

Researchers at Hong Kong University of Science and Technology have discovered a method that allows them to filter out almost all the noise in a given environment — no matter how loud or quiet it is.

Experts at the University of Bristol have discovered that the scales on moth wings act as excellent sound absorbers even when placed on an artificial surface. The researchers, which recently ...

NASHVILLE, Tenn. (WTVF) — The Nashville Fairgrounds Speedway's destiny now rests in the hands of Metro Council members, who are deliberating over a proposal presented by Bristol Motor Speedway to ...

If you want to minimise the amount of noise in an urban environment it's better to plant conifers than broadleaved trees, scientists claim. Researchers from University College London studied the bark ...