Discover how to build a homemade rubber band-powered paper airplane in this easy and engaging tutorial. We’ll guide you ...

diy Semi-Automatic Paper Plane Launcher from Cardboard at Home In this video I show you how to make semi-automatic paper plane launcher with holder for 30 planes! All you need is few batteries, 2 ...

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 ...