The Conjuring franchise is full of creepy moments, but one standout moment from the first film is the scariest of them all.

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 ...

Dynamic acoustics of hand clapping, elucidated Date: March 12, 2025 Source: Cornell University Summary: Researchers elucidate the complex physical mechanisms and fluid dynamics involved in a ...

The researchers used high-speed cameras to track the hand motion, air flow and sound of 10 volunteers clapping, measuring the different frequencies when the size and shape of the cavity between ...