A new paper published in the journal Physical Review Research provides experimental support for the hypothesis that hand clapping essentially acts like a Helmholtz resonator —akin to the hum generated ...

We wanted to explore how we generate the sound depending on how we clap our hands." The researchers used high-speed cameras ...

You stand a long distance from a wall, clap, and listen for the echo. The distance travelled is twice the distance from you to the wall (because the sound has to travel to the wall and back).

First, she points out that the pilot won't hear the applause due to the cockpit door blocking out the noise. She also lists several other reasons not to clap – including potential safety ...