The New Physics and Its Evolution

In 1907, the foundations of physics were crumbling. X-rays had been discovered just twelve years earlier, electrons were reshaping our understanding of matter, and a young patent clerk in Switzerland had just published papers that would revolutionize space and time. Lucien Poincaré, a prominent French physicist, witnessed this upheaval firsthand and set out to make sense of it all. This book is his attempt to trace the "new physics" back to its roots, showing how seemingly discontinuous discoveries actually emerged from decades of incremental inquiry. He challenges the notion that science progresses in dramatic ruptures, arguing instead that each revolutionary finding grows from quiet groundwork laid by generations of researchers. Poincaré explores metrology, the evolution of fundamental principles, and the surprising connections between electricity, heat, and matter. What makes this book remarkable is its dual perspective: he was close enough to these discoveries to witness their immediate impact, yet distant enough to see them in historical context. For anyone curious about how modern physics came to be, this is a front-row seat to the moment everything changed.