Re: Are cash cube booth games based on tornado air pat

The cash cubes I've seen seem to be fairly simple devices. Having checked 
on a search engine, I've seen plenty of companies that sell them. The one 
that I'll work to, because you can actually see where the air is blown in 
has a picture at : 
 http://
www.totalrebound.com/gamepages/cashcube.html

The principle seems fairly simple. It is not dissimilar to the much seen 
air-flow tests of cars shown in many commercials.

The main mechanism that makes the money swirl and such is turbulence. The 
turbulence is produced by two processes. The first is the air that is blown 
up rebounds off of the ceiling and walls of the booth and interacts with 
more air coming through the floor. It's like two winds hitting each other, 
causing leaves to swirl around in circles and then fly off. The other 
process that adds even more confusion to the process is the human occupant. 
The upcoming air not only has to contend with the rebounding air from the 
ceiling and walls, but also has to try to negotiate its way around an 
obstacle. (The booth should also have holes in either the ceiling or walls 
so that air can escape at a fairly rapid rate. These holes will add another 
cause of turbulence.)

A simple experiment using the blowing outlet of a vacuum cleaner and a 
covered glass cup containing shredded paper should duplicate the cash cube 
experience on a smaller scale.

It resembles tornadoes only in that they are both controlled by principles 
of fluid dynamics.

I hope this answered your question.