Q: Why is a magnet classified as dangerous goods when shipping by air?Read the answer...
Canadian scientists solve knuckle-cracking riddleApril 15, 2015
Scientists at the University of Alberta used MRI video to determine what happens inside finger joints to cause the distinctive popping sounds heard when cracking knuckles. For the first time, they observed that the cause is a cavity forming rapidly inside the joint. Watch the video available at the UofA Faculty of Rehabilitation Medicine.In Other News:
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