What if airfoils spun to produce lift? What if a gas that makes your voice sound like Alvin and the Chipmunks lifted an aircraft? And what if someone wrote a quiz about it? You’d ace it, right?
What if airfoils spun to produce lift? What if a gas that makes your voice sound like Alvin and the Chipmunks lifted an aircraft? And what if someone wrote a quiz about it? You’d ace it, right?