* Theory of Relativity: This is arguably his most famous work, encompassing both Special Relativity (dealing with the relationship between space and time) and General Relativity (describing gravity as a curvature of spacetime).
* Photoelectric effect: This discovery explained how light interacts with matter and earned him the Nobel Prize in Physics.
* Brownian Motion: This work provided evidence for the existence of atoms and molecules, solidifying the atomic theory of matter.
Einstein didn't invent a new science like someone might invent a new gadget. He expanded our understanding of existing sciences like physics and cosmology. He was a revolutionary thinker who fundamentally changed how we view the universe.
