heat flow equation
101Exothermic reaction — An exothermic reaction is a chemical reaction that releases heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation::reactants → products + energyOverviewAn exothermic reaction is a chemical reaction accompanied by… …
102Catagenesis (geology) — See Catagenesis (biology) for usage in the field of biology, where it refers to retrogressive evolution. Contrast with anagenesis. Catagenesis is a term used in petroleum geology to describe the cracking process which results in the conversion of …
103Fractionating column — A fractionating column or fractionation column is an essential item used in the distillation of liquid mixtures so as to separate the mixture into its component parts, or fractions, based on the differences in their volatilities. Fractionating… …
104List of thermal conductivities — In physics, thermal conductivity, k, is the intensive property of a material that indicates its ability to conduct heat.First, we define heat conduction by the formula::: H=frac{Delta Q}{Delta t}=k imes A imesfrac{Delta T}{x}where frac{Delta… …
105Space science — is an all encompassing term that describes all of the various science fields that are concerned with the study of the Universe, generally also meaning excluding the Earth and outside of the Earth s atmosphere . Originally, all of these fields… …
106Fractional distillation — is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate. It is a special… …
107Maximum modulus principle — A plot of the modulus of cos(z) (in red) for z in the unit disk centered at the origin (shown in blue). As predicted by the theorem, the maximum of the modulus cannot be inside of the disk (so the highest value on the red surface is somewhere… …
108Uses of trigonometry — Trigonometry has an enormous variety of applications. The ones mentioned explicitly in textbooks and courses on trigonometry are its uses in practical endeavors such as navigation, land surveying, building, and the like. It is also used… …
109History of geophysics — The historical development of geophysics has been motivated by two factors. One of these is research curiosity of humankind related to Planet Earth and its several components, its events and its problems. The second one is economically usage of… …
110de Sitter–Schwarzschild metric — In general relativity, the de Sitter–Schwarzschild solution describes a black hole in a causal patch of de Sitter space. Unlike a flat space black hole, there is a largest possible de Sitter black hole, which is the Nariai spacetime. The Nariai… …
