Unsure about a new design? Scientists and engineers often start with a model. With a model, you can test new ideas on a small-scale before going bigger. They are also cheaper, easier to produce, and ...
John Collins, the Paper Airplane Guy, shows how to fold five amazing paper planes: the Boomerang, the Boomerang 2, the Bat Plane, the Tumbling Wing, and the World Record Plane (a.k.a. "Suzanne"). Read ...