Simulating a Wind Tunnel in the Garage

In this episode, Shawn uses a wind tunnel app and help from a ski coach to analyze his ski aerodynamics. He then designs a low-drag helmet. Watch to see how big a difference it makes to the drag coefficient. Shawn mentions that it's a free app, but apparently it may not be for long so you may want to try it soon. If you're wondering what this software is, it's called Autodesk ForceEffect Flow. It's an app available for the Apple iPad that you can get by following this link: http://www.engineering-views.com/AutodeskForceEffectFlow_iOS/link01.htm