The release of the Oppenheimer film, the story of the director of the Manhattan Project, has prompted many people to go online and search for an explanation of the difference between fission and fusion, two fundamental scientific concepts.
Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei and releases energy.
Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.See https://www.ansto.gov.au/news/fission-vs-fusion-an-explainer
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