Imagine a paper airplane... Got it? It's a folded up piece of standard 8 1/2 by 11-inch printer paper, right? A sort of three-dimensional hieroglyph of an airplane made of paper. How boring of you. Now try imagining an airplane. A Boeing 777, the long range 300ER model to be exact. Think of the wing flaps moving, the landing gear unfolding, the reverse thrusters for the engines...