?Bursting with facts about how things work and featuring innovative augmented reality, this fun and informative book is perfect for inquisitive minds. It covers 250 objects, appliances and machines, split into four fantastic sections that children can relate to easily: in the home, towns and cities, leisure activities, and travel and transport. Using your computer and webcam, bring 13 of the objects to life in 3D with the amazing augmented reality technology. You can even play with them: pilot a helicopter, drive a speedboat and play a musical instrument!