Imagine being given a sackful of money and being told to build a roller coaster. You'd definitely want it to be the best roller coaster in the world. But how do you go about designing that? Using your imagination and some smart research, you'll see how to create a dream design. Then you'll refine it, and in 10 simple steps, make changes and improvements based on real-world considerations and calculations, to turn it into a design fit to compete with...