In Pursuit of the Unknown: 17 Equations That Changed the World

Ian Stewart traces the history of human civilization through seventeen specific mathematical formulas, beginning with the Pythagorean theorem and moving through the development of calculus, logarithms, and wave mechanics. He explains how the Navier-Stokes equations define fluid dynamics and how the Black-Scholes model shaped modern global finance. Each chapter focuses on a single equation, providing the historical context of its discovery and the mechanical way it functions. Stewart demonstrates how these abstractions directly resulted in practical technologies like radar, telecommunications, and GPS.

Scientific history enthusiasts and students of mathematics read this book to understand the hidden architecture behind everyday machinery. The reader learns to identify the mathematical foundations of electromagnetism and relativity without requiring advanced technical training. By the end, the reader possesses a clear map of how theoretical notation governs the physical world, from the orbits of planets to the transmission of digital data. This perspective replaces general curiosity with a specific understanding of how symbolic logic drives engineering and physics.