# What does "E=mc2" mean?

E=mc2 is an equation based on Einstein's famous theory of relativity that states that energy is equal to the mass multiplied by the speed of light squared. According to this equation, energy in motion can be converted into matter through the creation of a particle.

E=mc2 is an important equation because it ties together the concepts of energy, the speed of light and mass. It was created by Albert Einstein in 1905 and remains as one of the most significant equations in the natural sciences. The equation is used to calculate how much mass it takes to make a certain amount of energy, and concludes that mass (m) and kinetic energy (E) are equal, since the speed of light (c2) is constant.

E=mc2 also implies that matter can transform into antimatter when energy becomes mass. According to Seed Magazine, when antimatter comes into contact with normal matter, it immediately detonates, turning both the antimatter and normal matter into pure energy. The idea that energy has mass is derived from Newton's laws of mechanics, which states that electromagnetic radiation possesses momentum. Einstein created a thought experiment using the concepts of electromagnetic radiation to come up with this famous equation that described the relationship between energy and mass.

Q&A Related to "What does "E=mc2" mean?"
 > Why is the speed of light used in this equation? That would take a while to explain. The short answer is that space, time, mass and energy are all related; and "c" http://answers.yahoo.com/question/index?qid=200801...
 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_calculate-mc2.html
 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/Understand-E%3Dmc2
 An equation derived by the twentieth-century physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or http://www.answers.com/whats%20the%20meaning%20of%...
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