small amplitude motion
31swing — vb 1 Swing, wave, flourish, brandish, shake, thrash are comparable when they mean to wield or to handle something so that it moves alternately backward and forward or upward and downward or around and around. Swing often implies regular… …
32Vibrating string — A vibration in a string is a wave. Usually a vibrating string produces a sound whose frequency in most cases is constant. Therefore, since frequency characterizes the pitch, the sound produced is a constant note.Vibrating strings are the basis of …
33Method of averaging — In the study of dynamical systems, the method of averaging is used to study certain time varying systems by analyzing easier, time invariant systems obtained by averaging the original system. Definition Consider a general, nonlinear dynamical… …
34Sunyaev–Zel'dovich effect — Physical cosmology Universe · Big Bang …
35Sunyaev-Zel'dovich effect — The Sunyaev Zel dovich effect (often abbreviated as the SZ effect) is the result of high energy electrons distorting the cosmic microwave background radiation (CMB) through inverse Compton scattering, in which some of the energy of the electrons… …
36Orion variable — An Orion variable is a variable star which exhibits irregular and eruptive variations in its luminosity and is typically associated with diffuse nebulae. It is thought that these are young stars which will later become regular, non variable stars …
37Zakharov–Schulman system — In mathematics, the Zakharov Schulman system is a system of nonlinear partial differential equationsintroduced in harv|Zakharov|Schulman|1980 to describe the interactions of small amplitude, high frequency waves with acoustic waves.The equations… …
38NO Aurigae — Observation data Epoch J2000      Equinox J2000 Constellation Auriga Right ascension 05h 40m 42.0504s Declination +31° 55′ 14.187″ …
39Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …
40earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake …
