A Helmholtz resonator consists of an enclosed cavity of air — like the inside of a glass bottle, or the space between clapping hands — with an opening connected to the cavity by a neck.

A new paper published in the journal Physical Review Research provides experimental support for the hypothesis that hand ...

"It made me curious about how the wave propagates when we clap our hands," Jung said. "Clapping hands is a daily, human activity and form of communication," Jung said. "We use it in religious ...