what makes the snapping sound when we snap our fingers

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what makes the snapping sound when we snap our fingers

In: Biology
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Your finger tip slapping against the palm of your hand. The snap doesn’t come from the fingers releasing. It comes from the finger slapping to a stop when it hits your palm (and/or the adjacent fingers, depending on how you snap).

lets say you push middle finger against thumb so that middle finger points towards palm. middle finger push and hit palm make big sound

Neither of the current two comments are entirely correct. They only have half the picture.

If the snap were entirely from your finger slapping against your palm, you could make a similar snap by opening all your fingers and just snapping the one finger, but it doesn’t work like that.

A lot of the sound from a snap comes from [how the shape of your hand directs and amplifies sound](https://youtu.be/wdER__ZSmHg), almost like the bell of a horn. How that air in your hand is displaced by the movement from your finger has more to an effect than the actual impact itself.