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 ...

Engines can develop some unpleasant noises under certain conditions, thanks to fiendishly complicated harmonics in the intake-air tract, and so clever engineers often use the principles of Helmholz ...

Researchers describe an acoustic meta-surface that uses pingpong balls, with small holes punctured in each, as Helmholtz resonators to create inexpensive but effective low-frequency sound insulation.

Helmholtz resonators reduce the noise level especially at the low frequency end of the sound spectrum. This study explores the amount of reduction for different configurations of Helmholtz resonators ...

CC0 Usage Conditions ApplyClick for more information. Observe a demonstration of Helmholtz Resonators from the Physical Science Collection at the Smithsonian's National Museum of American History.

If you live in a city, near a highway, or an airport, you may be bothered by a variety of low-frequency noises emitted by cars and airplanes. Research results have been announced that ``ping pong ...