that depends!
71economic development — Process whereby simple, low income national economies are transformed into modern industrial economies. Theories of economic development the evolution of poor countries dependent on agriculture or resource extraction into prosperous countries… …
72nature, philosophy of — Introduction the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology. In this… …
73reaction mechanism — Introduction in chemical reactions (chemical reaction), the detailed processes by which chemical substances are transformed into other substances. The reactions themselves may involve the interactions of atoms (atom), molecules (molecule),… …
74Einstein , Albert — (1879–1955) German–Swiss–American theoretical physicist Einstein was born at Ulm in Germany where his father was a manufacturer of electrical equipment. Business failure led his father to move the family first to Munich, where Einstein entered… …
75elasticity — /i la stis i tee, ee la stis /, n. 1. the state or quality of being elastic. 2. flexibility; resilience; adaptability: a statement with a great elasticity of meaning. 3. buoyancy; ability to resist or overcome depression. 4. Physics. the property …
76Density functional theory — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory …
77Harmonic oscillator — This article is about the harmonic oscillator in classical mechanics. For its uses in quantum mechanics, see quantum harmonic oscillator. Classical mechanics …
78Implied volatility — In financial mathematics, the implied volatility of an option contract is the volatility implied by the market price of the option based on an option pricing model. In other words, it is the volatility that, given a particular pricing model,… …
79Electrical resistivity and conductivity — This article is about electrical conductivity in general. For the specific conductance of aqueous solutions, see Conductivity (electrolytic). For other types of conductivity, see Conductivity. Electrical resistivity (also known as resistivity,… …
80Derivative — This article is an overview of the term as used in calculus. For a less technical overview of the subject, see Differential calculus. For other uses, see Derivative (disambiguation) …
