So everyone knows the equation e=mc^2, but most people have no idea what it means. So I’m going to explain what Einstein’s (and arguably physics) most famous equation means in plain and simple English. Energy = mass * the speed of light squared
The equation basically displays the idea of mass-energy equivalence. This states that every object has an equivalent proportion of energy to mass, that proportion is equal to the speed of light squared. (Energy/mass=speed of light squared)
This means that the amount of energy (Joules) in a system is equal to the mass of the object*the speed of light*the speed of light. Now we know the speed of light is a huge, huge, huge measurement— now imagine it squared. That means even a really small amount of mass gives off huge amounts of energy.
This simple concept stems off onto multiple complicated concepts such as the fact that we could convert energy to mass (which lead to the discovery of antimatter,) the fact that when stars and other nuclear substances emit energy they are converting their mass into energy, therefore destroying their mass. This equation is simple to understand, and can be applied to so many aspects of physics and gives us a much greater understanding of the workings of our universe.