WHEN I WAS GROWING UP, I ENVIED SALLY CULVER. Though she was five years younger, she had somehow managed to get herself a fan club. It began one summer evening, when Mrs. Culver brought her 1 year-old ...

Clapping is a behavior so deeply rooted in human beings it’s almost an instinct. You can see babies and toddlers clapping just because everybody else is, and if you’ve ever felt the pressure to be ...

Social contagion If you wish to avoid the social faux pas of clapping at the wrong time, listen carefully to the volume of noise around you. That's the conclusion of a study about the social dynamics ...

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 ...

In a pivotal scene from the 2006 film X-Men: The Last Stand, a mutant claps his hands and blasts a shockwave across a battlefield. In a theater somewhere, Sunny Jung watched—and wondered. “It made me ...