Physics affects the way we live and, ultimately, how life itself functions. This fully rewritten new edition of a classic text investigates key frontiers in modern physics. Exploring our universe, from the particles within atoms to the stars making up galaxies, it reveals the vital role invisible mechanisms play in the world around us, and explains new techniques, from nano-engineering and brain research to the latest advances in high-speed data networks and custom-built materials. Written by leading international experts, each of the nineteen chapters will fascinate scientists in all disciplines, as well as anyone wanting to know more about the world of physics.