Energies that constitute material substance balance between two main phenomena, which are fusion and fission. Both energies are linked to the cohesion forces of atomic nucleus proton and neutron but are fundamentally different.

- Fission breaks the cohesion energy that constitutes the substance and possesses a linear functioning.

- Fusion “condensates” substance by a phenomenon that is difficult to start and to maintain. The object is to force the substance to attain a new equilibrium against its will. This phenomenon will produce a lot of energy that has become in excess and possess a non linear functioning.

What are the mechanisms that surround and control such fusion and fission, inducing non linear and leanings chaos phenomena observed within all scales of space and time?

Is the difference of nature between gravity field and electromagnetic field linked with this double phenomenon?