What makes your knucles crack
Burki at amm.unibe.ch
Fri Nov 28 11:25:55 EST 1997
Terry Brooks wrote:
> Can anyone tell me what makes your knuckles crack or where I might be able
> to find this info.
> Thank you
1. What has this to do with microbiology?
2. Our orthopedic surgeons *believe* in the following:
Nitrogen is dissolved in the synovial liquid. When you extend a
joint you lower the pressure inside, thus causing the N2 to go into
the gaseous phase (cf. a bottle of soda). This happens explosively,
hence the sound. Funny, isn't it?
Didi Burki, Berne/Switzerland
(to reply please replace amm by imm)
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