What were the first ever inventions? When was the wheel first around? What's the fastest machine on Earth? This fascinating book answers all the questions children love to ask about the world's oldest and newest machines and inventions. This book lets you learn about some of the people and ideas that have changed the world as we know it, from the first tools to the inventions of the future; contains marvelously detailed illustrations by specialist artists show some of the world's most fascinating machines and inventions; two scene-changing acectate spreads bring these World of Wonder books to life; incorporates an engaging question-and-answer format that children will find easy to follow; a 'true or false?' quiz runs through the book, with answers given at the end, to make it truly interactive; and, a glossary and index encourage children to use the book as an educational resource.