Engineering : The Riveting World of Buildings and Machines

"How does lever lift such heavy weight? What stops skyscraper crashing to the ground? How come GPS knows exactly where to find you? Crammed with mega machines, breathtaking buildings, and all the technology in between, this book has the real insider view on engineering. From toothy gears to sturdy steel and dependable dam, meet these colorful characters and see what they have to say. It's a riveting read!"---Back cover.