This book has been graded for interest at 9-12 years.

There are 224 pages in this book. This book was published 2005 by Firefly Books .

Adam Hart-Davis is a writer and broadcaster who has worked on and presented several major TV series including Local Heroes, Top Ten Treasures, Tomorrow's World, What the Stuarts Did for Us, What the Victorians Did for Us, What the Romans Did for Us, and What the Ancients Did for Us. He is an expert on inventions of all varieties and lives with his wife in the West of England. Nishant Choksi is an exciting new Brighton-based illustrator who has created artworks for The Times, Guardian, Independent, Wall Street Journal and NewScientist. His previous children's books include the Really, Really Big Questions series with authors Mark Brake and Dr Stephen Law.