Today’s world is driven by technology. It’s changed the way we communicate over mobile phones and the Internet, the way we travel in hybrid cars and on hoverboards, the way we build high skyscrapers and underground metro systems, and the way we treat patients and investigate crimes. The newest developments in technology change the way we live, but few of us actually understand the inner workings of our most sophisticated gadgets and machines. With this newly revised edition of The How It Works Book of Amazing Technology, we aim to answer the questions behind today’s technology, from small household appliances like an espresso machine, to huge and intangible concepts like near fi eld communication in smartphones. Get closer to understanding our world, and start reading!