Racing a monster truck, riding a hoverboard, or using a remote-control tank are some of the crazy activities daredevils can do today because of amazing machine technology. Just because it's possible doesn't mean everyone wants to do it. In this book, readers are presented with cool megamachines and asked to choose between them. Readers not only learn about how superfast cars are made or how 3D printers work but also how to weigh two options and make a decision. Full-color photographs and an action-packed design energize readers as they zoom through amazing facts and discover more about modern machines.