內容簡介
內容簡介 How does a train stay on the tracks? What's going on inside a pogo stick? How do cranes work? And what happens when you flush a toilet? These and many more important questions are answered in this fascinating book. From toasters and telephones to hovercrafts and robots – the inner workings of machines big and small are brought to light using a stunning mix of cross-sections, close-ups and cutaways.
作者介紹
作者介紹 Steve MartinSteve Martin is a writer, former English teacher, and author of numerous children's books on a wide range of subjects, including The Boys’ Book of Adventure, Numberland, and Ivy Kids’ Academy series.Valpuri KerttulaValpuri Kerttula is a graduate of the Edinburgh College of Art. She currently lives in Finland and creates artwork for children's books, school textbooks, and editorial commissions. Her style is bright, playful and colourful. She loves developing curious characters from her imagination.