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Beskrivelse
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.;; 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