E=MC 2 is important to the theory based upon the idea created by Einstein, His theory was that E represents units of Energy, M represents Mass, C 2 represents speed of light squared
http://wiki.answers.com/Q/Why+e+equals+mc2+a+big+t...

1. Weigh the object you will perform the calculation for with a mass balance scale. Record its mass. 2. Convert the mass to kg, if necessary. To convert from g to kg, for example,
http://www.ehow.com/how_8208976_calculatemc2.html

It states a relationship between energy (E), in whatever form, and mass (m). In this formula, c², the square of the speed of light in a vacuum, is the conversion factor required
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1 Know that the equation is simply about special relativity. Simply put, this equation tells us that mass and energy are two forms of the same thing. In the right condition, mass
http://www.wikihow.com/UnderstandE%3Dmc2
