E=m
c²: The Theory of Relativity In 1905, Albert Einstein introduced the theory of relativity, which proposed that the laws of physics are the same for all non-accelerating observers and that the speed of light is constant. This theory has since become one of the most important and widely accepted theories in physics. The formula E=mc² (energy equals mass times the speed of light squared) is a key component of Einstein's theory of relativity. It shows that energy and mass are interchangeable and that they are essentially the same thing. This formula has been used in various applications, including nuclear energy and the creation of atomic bombs. Aside from its practical applications, the theory of relativity has also had a significant impact on our understanding of the universe. It has challenged our traditional concepts of time and space and has opened up new avenues for exploration and discovery. Despite being almost a century old, Einstein's theory of relativity continues to be heavily studied and debated among physicists. There have been many attempts to reconcile it with other theories, such as quantum mechanics, and to use it to explain various phenomena in the universe. Overall, the theory of relativity and the formula E=mc² have had profound implications in physics and our understanding of the universe. It is a testament to the genius of Albert Einstein and the power of human curiosity and exploration.