In 1905, Albert Einstein published his now famous formula E = mc2, where he demonstrated the amount of energy emitted by objects, such as stars, is directly proportional to the amount of mass they decrease by. In this equation, the "E" stands for energy, while the "m" is for mass,...

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In 1905, Albert Einstein published his now famous formula E = mc2, where he demonstrated the amount of energy emitted by objects, such as stars, is directly proportional to the amount of mass they decrease by. In this equation, the "E" stands for energy, while the "m" is for mass, and the "c2" is the square of the speed of light. The formula basically equates the transformation of energy into matter and matter into energy. Einstein was the first to successfully explain how the sun produced its energy and did not burn out, as other things that burn here on Earth do. It was by a process called nuclear fusion, where one hydrogen nucleus is bound to another hydrogen nucleus, forming a helium nucleus and releasing a small packet of energy called a photon. Although Einstein never intended his formula to be used for war, it was the basis for the development of nuclear weapons that helped bring about a quick end to World War II, when the United States dropped atomic bombs on Hiroshima and Nagasaki, Japan.