その理由は次のとおりです。
* Nuclear Fission: This is the process where the nucleus of an atom is split, usually by bombarding it with neutrons. This splitting releases a tremendous amount of energy, often in the form of heat and radiation. This is the principle behind nuclear power plants and atomic bombs.
* 核融合: This is the process where two or more atomic nuclei combine to form a heavier nucleus. This process also releases enormous amounts of energy, even more than fission. This is the process that powers stars and is the subject of intense research for future energy production.
So, the splitting of atoms, whether through fission or fusion, results in the release of energy.