1Learning by doing is the quickest and surest way to understanding. Instead of just reading about how and why something works, you perform experiments yourself and actually see what happens. The experiments in this book will help you to understand magnetism, electricity, electronics, energy - all subjects that are becoming more and more importantin today's world.With simple equipment, most of which you already have at home, you can set up your own laboratory in a corner of a room and follow in the footsteps of the great scientists, many of whom began their lifelong interest when they were young.