"We were surprised that an activity as popular, fun, and healthy as hula hooping wasn't understood even at a basic physics level," said co-author Leif Ristroph of New York University.
"As we made progress on the research, we realized that the math and physics involved are very subtle, and the knowledge gained could be useful in inspiring engineering innovations, harvesting energy from vibrations, and improving in robotic positioners and movers used in industrial processing and manufacturing."
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