Changes

: The [[Fuel Rod|fuel rods]] in a '''nuclear reactor''' are slim to allow [[neutron]]s to escape the [[Fuel Rod|fuel rods]] easily. This prevents a single [[Fuel Rod|fuel rod]] from sustaining a [[Nuclear Chain Reaction|chain reaction]]. The [[Fuel Rod|fuel rods]] are placed next to each other so that the [[neutron]]s released by one [[Fuel Rod|fuel rod]] are absorbed by another [[Fuel Rod|fuel rod]]. This also allows them to have [[Control Rod|control rods]] placed between them to stop the [[Nuclear Reaction|reaction]].