The Principia

"The Principia," formally titled "Mathematical Principles of Natural Philosophy," is a seminal work by Sir Isaac Newton, published in 1687. It lays the foundation for classical mechanics, outlining the laws of motion and universal gravitation. Newton explains how objects move and interact through three laws: inertia, force, and action-reaction. The book revolutionized scientific thought by providing a mathematical framework to describe physical phenomena, establishing principles that apply to everything from falling apples to the orbits of planets. Its impact on science and mathematics has been profound, influencing countless fields and shaping our understanding of the universe.