Knuckle Cracking Sound Triggered by Bubble Formation

Re:Knuckle Cracking Sound Triggered by Bubble Formation by mintplant on Thursday December 03, 2015 @04:23AM (#10668669)

My initial reaction to this was, "Wait, didn't we know this already?" The key to the story is somewhat buried:

> The bubbles then stick around for about 20 to 30 minutes, and you won’t be able to crack your knuckles again until they are gone — a sure sign that the sound is not caused by bursting bubbles, as was the leading hypothesis for many years.

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Re:Knuckle Cracking Sound Triggered by Bubble Formation by hesselink on Thursday December 03, 2015 @04:46AM (#10668734)

This is literally in the first paragraph of the story:

> The staccato pop of a cracked knuckle might sound like a balloon bursting — but it’s actually triggered by the formation of gas bubbles, rather than their disappearance.

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Re:Knuckle Cracking Sound Triggered by Bubble Formation by mintplant on Thursday December 03, 2015 @05:09AM (#10668814)

Huh, that got cut off in the reader view I was using. Thanks.

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