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What does E = MC2 refer to?


Question asked by: mrquestion

Asked on: 25 Jan 2010

E = MC2 is a famous equation of the physicist Einstein.

Many people think that the equation is 'about the speed of light' and whilst it does indeed contain the speed of light (denoted by C) what the equation is about is something that is not necessarily at all intuitive.

It is the equivalence between mass and energy. Specifically they can be interchanged, but an awful lot of energy is required to make a tiny, tiny little bit of mass. So mass is energy solidified, as it were, in the particles that make mass.

By: knowitall
Replied at: 25 Jan 2010
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