Albert Einstein is famously associated with the equation \(E=mc^2\), which expresses the principle of mass-energy equivalence. This formula indicates that energy (E) equals mass (m) multiplied by the speed of light (c) squared. Essentially, it reveals that mass can be converted into energy and vice versa, fundamentally changing our understanding of physics. This groundbreaking concept laid the foundation for much of modern physics, including developments in nuclear energy and the theory of relativity. The equation's elegance and simplicity have made it one of the most recognizable formulas in science, symbolizing the relationship between matter and energy.