Wind tunnels are chambers through which air flows during tests of airplane shapes.
In the tunnels, air is blown around airplane and rocket models to simulate flight. Our purpose is to get results and data out of NASA wind tunnels faster. Darwin is similar to the Internet, but Darwin is not open to the public. The system is able to link NASA, aerospace industry and academic centers that may be located thousands of miles from one another. A computer program that many people use to browse the Internet from their home computers is used in the Darwin system.