instability of equilibrium

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• equilibrium — noun /iːkwɪˈlɪbɹɪəm,ɛkwɪˈlɪbɹɪəm/ a) The condition of a system in which competing influences are balanced, resulting in no net change. b) The state of a body at rest or in uniform motion in which the r …   Wiktionary

• equilibrium — I (New American Roget s College Thesaurus) n. balance, equipoise, stability; moderation, neutrality; equality, parity, symmetry; composure, self possession, [self]restraint. See inexcitability. Ant., unbalance, instability. II (Roget s IV) n. 1.… …   English dictionary for students

• instability — noun a) The quality of being unstable. b) A state that is not in equilibrium, or in which a small change has a large irreversible effect. Syn: volatility See Also: instable, stability …   Wiktionary

• instability — I (New American Roget s College Thesaurus) n. changeableness, unsteadiness, inconstancy. II (Roget s IV) n. Syn. inconstancy, changeability, immaturity, mutability, variability, unstableness, nonuniformity, inconsistency, irregularity, imbalance …   English dictionary for students

• Electrothermal instability — NOTOC The electrothermal instability (also known as the ionization instability or Velikhov instability in the literature) is a magnetohydrodynamic (MHD) instability appearing in magnetized non thermal plasmas used in MHD converters. It was first… …   Wikipedia

• Rayleigh–Taylor instability — The Rayleigh–Taylor instability, or RT instability (after Lord Rayleigh and G. I. Taylor), is an instability of an interface between two fluids of different densities, which occurs when the lighter fluid is pushing the heavier fluid. [citation… …   Wikipedia

• Elastic instability — is a form of instability occurring in elastic systems, such as buckling of beams and plates subject to large compressive loads. ingle degree of freedom systemsConsider as a simple example a rigid beam of length L , hinged in one end and free in… …   Wikipedia

• Jeans instability — The Jeans instability causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent gravitational collapse of a region filled with matter. For stability, the …   Wikipedia

• Non-equilibrium thermodynamics — Thermodynamics …   Wikipedia

• Mechanical equilibrium — A pendulum in a stable equilibrium (left) and unstable equilibrium (right) A standard definition of static equilibrium is: A system of particles is in static equilibrium when all the particles of the system are at rest and the total force on each …   Wikipedia

• Pair-instability supernova — A pair instability supernova occurs when pair production, the production of free electrons and positrons in the collision between atomic nuclei and energetic gamma rays, reduces thermal pressure inside a supermassive star s core. This pressure… …   Wikipedia