> Sure they taste great, but have you ever considered the aerodynamics of a Pringles chip? Tom Lange has. As director of modeling and simulation at Procter & Gamble Co., it's Lange's job to use finite element analysis to predict what something will smell like, whether a bottle will break, and if a Pringles chip will take flight. "We break things into a million little parts and then write simple math equations about how each little part affects the other parts," says Lange, who is responsible for the economic, as well as structural, analysis of different materials.