For thirty years, the whole last half of his life, Leonardo da Vinci was obsessed with unlocking the secrets of nature. His notebooks are the mind-boggling evidence of a fifteenth-century scientist standing at the edge of the modern world, basing his ideas on observation and experimentation. Scrupulously researched, juicily anecdotal, this book will change children's ideas of who Leonardo was and what it means to be a scientist.
