microscopic symmetry
81Renormalization group — In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the… …
82Landau theory — in physics was introduced by Lev Davidovich Landau in an attempt to formulate a general theory of second order phase transitions. He was motivated to suggest that the free energy of any system should obey two conditions: that the free energy is… …
83Inflation (cosmology) — Inflation model and Inflation theory redirect here. For a general rise in the price level, see Inflation. For other uses, see Inflation (disambiguation). Physical cosmology …
84Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
85Rotifer — Rotifera Temporal range: Eocene–Recent …
86Doushantuo Formation — Stratigraphic range: 635–551 Ma[1] …
87H-theorem — In thermodynamics, the H theorem, introduced by Boltzmann in 1872, describes the increase in the entropy of an ideal gas in an irreversible process, by considering the Boltzmann equation.It appears to predict an irreversible increase in entropy,… …
88Bénard cells — are convection cells that appear spontaneously in a liquid layer when heat is applied from below. They can be obtained using a simple experiment first conducted by Henri Bénard, a French physicist, in 1900. The experiment illustrates the theory… …
89Sonatas and Interludes — is a collection of twenty pieces for prepared piano by American avant garde composer John Cage (1912 ndash;1992). It was composed in 1946 ndash;1948, shortly after Cage s introduction to Indian philosophy and the teachings of art historian Ananda …
90Transparency and translucency — Diaphanes redirects here. For the genus of firefly, see Diaphanes (beetle). Translucence redirects here. For other uses, see Translucence (disambiguation). Translucent redirects here. For the Japanese manga series, see Translucent (manga).… …
