The formula E=mc² is recognized as what?

The formula E=mc² is recognized as Einstein's equation, which expresses the equivalence of energy (E) and mass (m), with c² representing the speed of light squared. This pivotal equation demonstrates how a small amount of mass can be converted into a large amount of energy, underscoring the profound relationship between mass and energy in the theory of relativity.

Einstein's work has had far-reaching implications in both theoretical physics and practical applications, such as nuclear energy. His equation is foundational in understanding concepts in modern physics, including nuclear fission and fusion processes, making it one of the most famous equations in science.

The other formulations mentioned—like Newton's Laws focusing on motion and forces, Planck's Law pertaining to quantum energy and black body radiation, and the Heisenberg Uncertainty Principle concerning the limits of simultaneous measurements of particle properties—are significant in their own right but do not pertain to the mass-energy equivalence represented by E=mc².