Tricky crossword stumps solvers: Relativity expression x 5. Can you solve it?

The answer to the crossword question is “E equals MC squared“, which is a famous and significant equation in physics that was introduced by Albert Einstein in 1905. It explains the relationship between mass and energy and is often referred to as the theory of special relativity. The clue mentions that this equation is depicted five times in the puzzle, indicating that it may appear in different forms or parts of the puzzle. Overall, the answer to this crossword question highlights the importance of this scientific breakthrough and its lasting impact on our understanding of the universe.