A hula hoop is a dance against gravity ... But beneath the simple spinning plastic ring lies a complex interplay of forces that has, until now, remained mostly unexplored. A team of mathematicians ...

you can even play a human version of ring toss. Have one kid put on a bike helmet and stand still inside a hoop base. The ...

The new crisps will be sold as part of a six-pack multipack which will cost £2.35 and the team at Hula Hoop claims they are ...