What is fission?

How is Einstein's theory of special relativity expressed? What does each letter stand for?

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Fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with the release of a large amount of energy. This process occurs in heavy elements, such as uranium or plutonium, when a neutron is absorbed by the nucleus, causing it to become unstable and split apart.

Einstein's theory of special relativity is expressed through the equation E=mc², where E represents energy, m represents mass, and c represents the speed of light. In this equation, special relativity shows that energy and mass are interchangeable, with the speed of light serving as the conversion factor. This equation explains how energy can be released from matter and vice versa, demonstrating the fundamental relationship between mass and energy.