E=mc^2


This equation is known to almost any child old enough to read. Yet, the vast majority of adults don't understand what this equation says. The E stands for energy. The m stands for mass. And the c stands for the speed of light, which is roughly 300,000,000 meters per second.

With only m and e changeable the equation doesn't look like much, and on its own it isn't. The only thing this equation tells us is the units energy is measured in. Normally, energy is measured in kg*m^2/s^2. Einstein's equation states that energy(E) is equal to mass(m=kg) times c(the speed of light=m/s) squared(c^2=m^2/s^2). Thus, Einstein and Newton agree with the units energy is measured with, although they state it a little differently.

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