Quantum Electrodynamics: The Strange Theory of Light and Matter (book)

*Quantum Electrodynamics* (QED), as explained in *The Strange Theory of Light and Matter* by Richard Feynman, describes how light and matter interact at the smallest scales. It shows that particles like electrons and photons communicate through tiny, probabilistic exchanges of energy, rather than continuous forces. These interactions are governed by quantum principles, meaning outcomes are often inherently uncertain. Feynman’s approach uses visual tools called diagrams to illustrate these interactions, making complex phenomena like reflection, refraction, and radiation understandable. Overall, QED provides a precise framework for understanding electromagnetic phenomena at the quantum level.