Part of the extensive 18-book 'Discover...' series, this edition meticulously explains the mechanics of how various tools operate. From simple hand tools to more complex instruments, this book breaks down their functions into easy-to-understand concepts. With detailed illustrations and clear, engaging text, it demystifies the science and engineering behind the objects we use every day, making it a perfect educational resource for curious young minds eager to learn about the world around them and the principles of physics in action.