Hand clapping is ubiquitous behavior for humans across time and cultures, serving many different purposes: to signify approval with applause, for instance, or to keep time to music. Acousticians often ...

A round of applause, please: Scientists have finally figured out what’s behind the sound of clapping. The research pinpoints a mechanism called a Helmholtz resonator — the same acoustic concept that ...

In a pivotal scene from the 2006 film X-Men: The Last Stand, a mutant claps his hands and blasts a shockwave across a battlefield. In a theater somewhere, Sunny Jung watched—and wondered. “It made me ...

The Caverns Sessions is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, ...