In this rich, irreverent, compelling history, Nobel Prize-winning physicist Steven Weinberg takes us from ancient Miletus to medieval Baghdad and Oxford, from Plato's Academy and the Museum of Alexandria to the cathedral school of Chartres and the Royal Society of London. He shows that the scientists of ancient and medieval times not only did not understand what we now know about the world, they did not understand what there is to be understood, or how to learn it. Yet over the centuries, through the struggle to solve such mysteries as the curious apparent backward movement of the planets or the rise and fall of the tides, science eventually emerged as a modern discipline. Along the way, Weinberg examines historic clashes and collaborations between science and the competing spheres of religion, technology, poetry, mathematics, and philosophy. An illuminating exploration of how we have come to consider and analyze the world around us, To Explain the World is a sweeping, ambitious account of how difficult it was to discover the goals and methods of modern science, and the impact of this discovery on human understanding and development.