How To: Fold the Record-Setting Glider-Style Paper Airplane (Guinness World Records)
We've all attempted to fold a paper airplane before, right? One we hoped would sail majestically through the air for a good while but just ended up nose-diving into the grass. Paper planes, an invention likely as old as paper, are models of engineering; and they must account for the same dynamics as real planes, from drag force to stability to weight. So what is the perfect design?