Chain reaction,artist concept illustration. A chain reaction is a sequence of reactions where a reactive product or by-product causes additional reactions to take place. In a chain reaction,positive feedback leads to a self-amplifying chain of events. In accordance with the laws of thermodynamics,the reactions cannot be reversed. In a nuclear chain reaction if one or more of the produced neutrons themselves interact with other fissionable nuclei,and these also undergo fission,then there is a possibility that the macroscopic overall fission reaction will not stop,but continue throughout the reaction material. This is then a self-propagating and thus self-sustaining chain reaction. This is the principle for nuclear reactors and atomic bombs | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 5150 px × 6695 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |