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This definition includes any form of nuclear fusion, so the lowest possible mass of a fusor was set at roughly 13 M J (Jupiter masses) at which point deuterium fusion becomes possible. This is significantly lower than the point at which sustained fusion of protium (1 H, "regular" hydrogen) becomes possible, around 60 M J.
Hydrogen fusion (nuclear fusion of four protons to form a helium-4 nucleus [20]) is the dominant process that generates energy in the cores of main-sequence stars. It is also called "hydrogen burning", which should not be confused with the chemical combustion of hydrogen in an oxidizing atmosphere.
Nuclear fusion is a reaction in which two or more atomic nuclei (for example, nuclei of hydrogen isotopes deuterium and tritium), combine to form one or more atomic nuclei and neutrons. The difference in mass between the reactants and products is manifested as either the release or absorption of energy.
Radio astronomy has also produced some exciting results, ... fusion is viewed as an ideal energy source for humanity in the far future, given a vast seawater supply of D,” the authors write ...
That fusion process essentially shut down at about 20 minutes, due to drops in temperature and density as the universe continued to expand. This first process, Big Bang nucleosynthesis , was the first type of nucleogenesis to occur in the universe, creating the so-called primordial elements .
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. ... The fusion of helium requires a higher core temperature ...
The CNO cycle (for carbon–nitrogen–oxygen; sometimes called Bethe–Weizsäcker cycle after Hans Albrecht Bethe and Carl Friedrich von Weizsäcker) is one of the two known sets of fusion reactions by which stars convert hydrogen to helium, the other being the proton–proton chain reaction (p–p cycle), which is more efficient at the Sun's ...
The alpha process, also known as alpha capture or the alpha ladder, is one of two classes of nuclear fusion reactions by which stars convert helium into heavier elements. The other class is a cycle of reactions called the triple-alpha process, which consumes only helium, and produces carbon. [1]