Mass and energy are the same entity. This is known as mass-energy equivalence. Albert Einstein explains in this video clip the concept. Mass-energy equivalence can best be described as energy equals mass times the speed of light squared. The equation has become recognizable to the general public. Mathematics is used in theoretical physics to express natural phenomenon. Mass-energy equivalence emerged out of the special theory of relativity. A diminutive amount of mass can be converted into a large amount of energy. Experimental confirmation of this was achieved in 1932. Mass-energy equivalence was used to develop new technologies. Nuclear power plants. particle accelerators, and nuclear weapons are the reason the idea connects to applied science. Relativistic mechanics were required to explain the physics of the subatomic world and the universe. Considerations have to be made in terms of frame of reference, relativistic mass, and relativistic energy. Newtonian mechanics was limited by describing physics in terms of the absolute.
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