New high-speed video reveals the physics of a finger snap
Friction plus compressibility of the finger pads are key to a speedy snap
![image of a hand snapping on a yellow backdrop](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/11/111621_ec_fingersnapping_feat.jpg?fit=1030%2C580&ssl=1)
A finger snap produces one of the fastest rotational motions known in the human body, almost as fast as some professional baseball pitchers’ arms.
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