Large companies are also examining larger systems for testing and simulation. Procter & Gamble, for example, uses an SGI system to study the aerodynamics of Pringle's potato chips, Snell said. The chips move along a conveyor belt so fast that they actually take flight. Through aerodynamic modeling, the company can change the shape of the chips and speed up manufacturing. P&G also uses the system to study fluid dynamics in disposable diapers.