The true meaning of Einstein’s most famous equation: E=mc² More than any other of Einstein’s equations, E = mc² is the one that most people can name. But what does it all mean? For hundreds of years, there was an immutable law of physics that was never challenged: that in any reaction occurring in the Universe, mass was conserved. That no matter…

https://medium.com/starts-with-a-bang/the-true-meaning-of-einsteins-most-famous-equation-e-mc%C2%B2-8772cee950b7