Book excerpt: Journey into an unseen world—and to the frontiers of human knowledge Welcome to Atom Land, a subatomic realm governed by the laws of particle physics. Here, electromagnetism is a highway system; the strong force, a railway; the weak force, an airline. With award-winning physicist Jon Butterworth as your guide, you’ll set sail from Port Electron in search of strange new terrain—from the Isle of Quarks to the very edge of Antimatter. Journey into an unseen world—and to the frontiers of human knowledge.