Senior researcher and associate professor Leif Ristroph explained in a press release that mathematical models were developed to explain the physical principles observed. These models offered insight ...

It’s not the gyrating motion of the hips that keeps the hoop aloft; it’s a body type with a sloping surface as ...

Popularized in the late 1950s as a child’s toy, the hula hoop is undergoing renewed interest as a fitness activity and performance art. But have you ever wondered how a hula hoop stays aloft against ...