Learn how to make paper airplanes with these easy-to-follow directions. Origami is the Japanese art of folding paper. Finished designs can be 2-dimensional or intricate 3-dimensional creations. And ...

Stripped to its essentials, a paper airplane requires two things: a medium-weight piece of paper and a lot of fine-tuning. But for Ken Blackburn, four-time world champ, launching a winning craft ...

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 ...