Did you know that both electricity and light move in waves, like water does? What does electricity have to do with magnets? From Benjamin Franklin and Charles de Coulomb to Georg Ohm and James Joule, readers will be introduced to the basic principles of light, electricity, and magnetism in an illuminating way. Secrets of the Universe uses the basic principles of the scientific laws of physics to explain how and why things happen the way they do. Experiments and diagrams printed in special metallic inks illustrate each law and make the complex ideas simple and appealing. Also includes timelines of great discoveries and short bios of extraordinary scientists.