How do Hula-Hoops work?
Modern Hula-Hoops are plastic rings you twirl around your body by moving your hips. This swiveling motion is similar to that ...
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This Is Why You Can't Hula Hoop, According to Science
The most successful robot shapes were those that combined sloping 'hips' to push the hula hoop up, and a narrow 'waist' to keep the hoop in place – so a pear shape works well, for example, whereas a ...
Can't hula hoop? It's not your technique, scientists say
Researchers of the study, published in the Jan. 7 issue of Proceedings of the National Academy of Sciences, conducted experiments using different shapes and motions on robotic hula hoopers. They ...