Proposed that light is composed of individual packets of energy, or "quanta" (photons).
Einstein was not content with Special Relativity, which excluded acceleration and gravity. For the next decade, he engaged in an agonizing intellectual struggle to expand his theory. The Happiest Thought
Provided empirical, undeniable proof of the existence of atoms. 3. Special Relativity
In 1907, Einstein had what he called his "happiest thought": a person falling freely from the roof of a house would not feel their own weight. This led to the , which equates gravity and acceleration. Warping Space-Time
Isaacson argues that Einstein’s scientific breakthroughs were directly linked to his rebellion against authority. From a young age, Albert Einstein displayed a deep-seated distrust of dogma and conventional wisdom. The Childhood Spark