60-Second Science: The Surprising Physics of Finger Snapping

Last week Scientific American’s 60-Second Science covered the physics of finger snapping!

Saad Bhamla: This is one of those examples that we joke that we can snap our fingers and get data.

Hopkin: That’s because Saad Bhamla and his students just wrapped up a study of the physics of finger snapping. They found that the right amount of friction is key to a successful snap. Their work appears in the Journal of the Royal Society Interface. [Raghav Acharya et al., The ultrafast snap of a finger is mediated by skin friction]

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