ITHACA, N.Y. — Every time you applaud at a concert or celebrate a touchdown, your hands are performing a feat of physics that scientists have puzzled over for decades. Cornell University researchers ...

Clapping is both a scientific event and a social gesture. A study explores the complex physics behind the sound of clapping. The noise originates from compressed air, not just hand collisions.

One readily noticeable pathognomonic trait of autism is hand-flapping—a stereotyped motor movement that can look a bit like an attempt to accelerating the drying of nail polish. Not all with autism do ...

A fifth-grader has written this blog asking for help with a science project... does anyone have any theories on the sound level (dB) and frequency (Hertz) of the average hand clap? I think he's trying ...