A team of crack researchers may have finally solved the mystery of knuckle-popping. University of Alberta scientist Greg Kawchuk has used an MRI for the first time to look into what happens when a knuckle is cracked. (Kawchuk says the technique will give researchers a new window into how joints function. His research was published in an online science journal.)

Date: 2015-04-15
Placeline: EDMONTON.
Source: The Canadian Press
Length: 17 seconds

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