skunkbear: Scientists at the University of Alberta filmed a knuckle cracking in an MRI scanner to find out what makes that popping sound. I’ve wondered about this for ages, and I can’t believe this hasn’t been done before!Turns out, contrary to

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skunkbear: Scientists at the University of Alberta filmed a knuckle cracking in an MRI scanner to find out what makes that popping sound. I’ve wondered about this for ages, and I can’t believe this hasn’t been done before!Turns out, contrary to

skunkbear: Scientists at the University of Alberta filmed a knuckle cracking in an MRI scanner to find out what makes that popping sound. I’ve wondered about this for ages, and I can’t believe this hasn’t been done before!Turns out, contrary to

skunkbear: Scientists at the University of Alberta filmed a knuckle cracking in an MRI scanner to find out what makes that popping sound. I’ve wondered about this for ages, and I can’t believe this hasn’t been done before!Turns out, contrary to

skunkbear: Scientists at the University of Alberta filmed a knuckle cracking in an MRI scanner to find out what makes that popping sound. I’ve wondered about this for ages, and I can’t believe this hasn’t been done before!Turns out, contrary to

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