Add Yahoo as a preferred source to see more of our stories on Google. At some point in everyone’s life—usually during a particularly dull moment in third grade—a plain white piece of paper inspires a ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. There are lots of way to learn first-hand the principles of flight ...

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 ...

Introduction Have you ever wondered what makes a paper plane fly? Some paper planes clearly fly better than others. But why is this? One factor is the kind of design used to build the plane. In this ...