This series demonstrates how certain technologies have evolved, transforming life at home, work and school; each volume focuses on a particular invention or device, enabling readers to learn about the device's development, how it works, and its impact.; In this exciting new title for the Tech 360 series, author Jenny MacKay takes readers on a wild ride through the history, design fundamentals, and scientific principles behind roller coasters. Readers will learn how gravity and physical forces create the; Full-color photographs, intriguing illustrations, visual timelines, and fascinating sidebars and fact boxes complement the text and hold reader interest, while ancillary materials such as bibliographies and a subject index help users target their research