Science Progress commissions world authorities to contribute articles on the most interesting, important and meaningful topics - ranging from cosmology to the environment, and publishes occasional ...

Recently, Professor Jiurong Liu and Professor Zhihui Zeng of Shandong University published a review paper about three-dimensional porous carbon-based electromagnetic wave absorbing materials in ...

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 ...

Circular cotton is used to create colorful sound absorbtion tiles from Impact Acoustics. With only 12% of clothing materials being recycled and 92 million tonnes of textile waste being produced ...

Bats eat a lot of moths, which they locate in the dark via echolocation. According to new research, however, some moths have evolved sound-absorbing fur as a passive means of defence – and it could ...

SOME time ago, there was a discussion 1 between E. T. Paris and Heyl concerning the dependence of the absorption of sound upon the angle of incidence, which, however, produced no solution to the ...