Scientists Still Don't Know Exactly Why Knuckles Crack
It has something to do with bubbles?
by Sarah Zhang
Mar 29, 2018
3 minutes
The study, Vineeth Chandran Suja confesses, was born in a moment of frustration.
As a graduate student at École Polytechnique, he had to design a research project for a class on biomechanics. He was drawing a blank—until he instinctively cracked his knuckles. “I thought, ‘This is something interesting and maybe fun,’” Suja says. Of all the on knuckle cracking, no one had mathematically described exactly how the knuckle produces the crack. Suja thought it had to
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