Acoustic metamaterials are a fast-evolving family of materials which manipulate sound waves in ever more advanced ways. Now, a team led by Changqing Xu at Nanjing Normal University in China has ...

Futuristic control of structure in some materials is being made possible by a physics loophole.

Those hairs do something else as well: They act as mechanical amplifiers, pumping energy into sound waves to counteract friction and help them reach their intended destinations. Pumping in just the ...

At the start of my career, I used to do acoustic testing in an anechoic chamber where sound is not reflected as it gets absorbed. But the quietness of these chambers always got me thinking of how ...

Acoustics encompasses the study of mechanical waves that propagate through media, a field that underpins a diverse array of technologies from noise control and ultrasonics to acousto‐optic modulation.