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===About Nuclear Fusion===
: In a '''nuclear fusion reaction''' the products have less [[mass]] than the reactants as some of the [[Rest Mass Energy|rest mass]] is converted into [[energy]] in the process.
: For a '''fusion''' [[Nuclear Reaction|reaction]] to occur the two [[Atomic Nucleus|nuclei]] must have enough [[Kinetic Energy Store|kinetic energy]] to overcome the [[Electrostatic Force|electrostatic force]] of repulsion between the [[Positive Charge|positively charged]] [[Atomic Nucleus|nuclei]].
: To provide enough [[Kinetic Energy Store|kinetic energy]] to the [[Atomic Nuclei|nuclei]] the [[substance]] must be [[heat]]ed to a [[temperature]] of several million [[Degrees Celsius|degrees Celsius]].