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Oxygen-burning process — The oxygen burning process is a set of nuclear fusion reactions that take place in massive stars that have used up the lighter elements in their cores. It occurs at temperatures around 1.5×109 K / 130 keV and densities of 1010 kg/m3. The… … Wikipedia
Neon-burning process — The neon burning process is a set of nuclear fusion reactions that take place in massive stars (at least 8 Solar masses). Neon burning requires high temperatures and densities (around 1.2×109 K or 100 KeV and 4×109 kg/m3). At such high… … Wikipedia
Carbon burning process — The carbon burning process is a set of nuclear fusion reactions that take place in massive stars (at least 4 MSun at birth) that have used up the lighter elements in their cores. It requires high temperatures (6 times;108 K) and densities (about… … Wikipedia
Oxygen burning process — The oxygen burning process is a set of nuclear fusion reactions that take place in massive stars that have used up the lighter elements in their cores. It occurs at 1.5 times;109 K and densities of 1010 kg/m3.The principal reactions are: :With… … Wikipedia
hydrogen burning — noun the nucleosynthesis process, in stars of less than 1.2 solar mass, in which hydrogen is converted to helium, deuterium and some lithium … Wiktionary
Silicon burning process — In astrophysics, silicon burning is a two week [http://arxiv.org/pdf/astro ph/0601261 The physics of core collapse supernovae, Woosley and Janka] ] sequence of nuclear fusion reactions that occur in massive stars with a minimum of about 8–11… … Wikipedia
Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium … Wikipedia
Hydrogen highway — A hydrogen highway is a chain of hydrogen equipped filling stations and other infrastructure along a road or highway which allow hydrogen powered cars to travel. A hydrogen filling infrastructure is generally assumed to be a pre requisite for… … Wikipedia
Hydrogen production — Hydrogen is commonly produced by extraction from hydrocarbon fossil fuels via a chemical path. Hydrogen may also be extracted from water via biological production in an algae bioreactor, or using electricity (by electrolysis), chemicals (by… … Wikipedia
Hydrogen cyanide — IUPAC name … Wikipedia
