Junior Scientist Rattle Back (Study Project)

A rattleback, also called a celt or wobblestone, is an interesting little piece of material with a roundish bottom and an unbalanced distribution of weight. When spun, it will soon start to rock and then, as the rocking motion subsides, it will settle down to spinning in the reverse direction. Rattlebacks do not work well on a slippery surface, which means that a certain amount of friction is a necessary condition for it to work. Nevertheless, there is a simple explanation, and it involves the effect of friction. The secret of a rattleback is that the distribution of mass is not lined up with the geometric axis.

Age Group : 8 Years to 11 Years

Battery Included : NO

Content : Rattle Back

Ideal For : School Children from Standard IV to IX