Air Zooka

This toy has a serious scientific purpose because it provides a stunning demonstration of vortex formation and transmission. When the toy is 'pumped' a doughnut shaped ring of air (the vortex) is generated and moves outwards at high speed. It has sufficient energy to create a noticeable impact at some distance - hence the toy interest. Ideal as a design project to attempt to recreate the same effect using cardboard boxes, etc.