degeneracy
61Chandrasekhar limit — When a star starts running out of fuel, it usually cools off and collapses (possibly with a supernova) into one of three compact forms, depending on its total mass: a White Dwarf, a big lump of Carbon and Oxygen atoms, almost like one huge… …
62White dwarf — For other uses, see White dwarf (disambiguation). Image of Sirius A and Sirius B taken by the Hubble Space Telescope. Sirius B, which is a white dwarf, can be seen as a faint pinprick of light to the lower left of the much brighter Sirius A …
63Degenerate art — Cover of the exhibition program: Degenerate Art exhibition, 1937. Note the word Kunst , meaning art, in scare quotes Cover of the exhibition program …
64Type II supernova — The expanding remnant of SN 1987A, a Type II P supernova in the Large Magellanic Cloud. NASA image. A Type II supernova (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least 9… …
65Genetic code — A series of codons in part of a messenger RNA (mRNA) molecule. Each codon consists of three nucleotides, usually representing a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C. This is mRNA, which uses U (uracil) …
66Anti-Americanism — Anti American mural in Tehran, Iran, 2004 The term Anti Americanism, or Anti American Sentiment, refers to broad opposition or hostility to the people, policies, culture or government of the United States.[1] …
67Art of the Third Reich — Die Partei, Arno Breker s statue representing the spirit of the Nazi Party The art of the Third Reich, the officially approved art produced in Nazi Germany between 1933 and 1945, was characterized by a style of Romantic realism based on classical …
68Molecular descriptor — Molecular descriptors play a fundamental role in chemistry, pharmaceutical sciences, environmental protection policy, and health researches, as well as in quality control, being the way molecules, thought of as real bodies, are transformed into… …
69Maxwell–Boltzmann statistics — Statistical mechanics Thermodynamics · …
70Perturbation theory (quantum mechanics) — In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a …
