In basic terms, it is a method of memory enhancement which uses visualization to organize and recall information. A lot of memory contest champions claim to use this technique to recall faces, digits, and lists of words.
Nuclear energy is energy that is stored in the nucleus or center core of an atom. The nucleus of an atom is made of tiny particles of protons (+ positive charge) and neutrons (no charge). The electrons (- negative charge) move around the nucleus. Nuclear energy is the force that holds the nucleus together in an atom.
Close-up of a replica of the core of the research reactor at the Institut Laue-Langevin. Nuclear fuel is a substance that is used in nuclear power stations to produce heat to power turbines. Heat is created when nuclear fuel undergoes nuclear fission. Most nuclear fuels contain heavy fissile elements that are capable of nuclear fission, such as uranium-235 or plutonium-239.