Theories on Light

Light is a form of energy transferred from one place to another, and a glance at the evolution of the various theories put forward by scientists over time to explain it gives an overview not just of the nature of light itself, but also of how it propagates and the phenomena it demonstrates. Four major historical theories have each attempted to explain the fundamental nature of light, with each one successfully explaining some phenomena while failing to explain others -- a review of all four, in chronological order (corpuscular, wave, electromagnetic-wave, quantum), gives both a sense of how understanding of light's nature developed over roughl …