fluctuating motion

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• Ising model — The Ising model, named after the physicist Ernst Ising, is a mathematical model in statistical mechanics. It has since been used to model diverse phenomena in which bits of information, interacting in pairs, produce collectiveeffects.Definition… …   Wikipedia

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• Reynolds-averaged Navier–Stokes equations — The Reynolds averaged Navier–Stokes (RANS) equations are time averaged [The true time average ( ar{X} ) of a variable ( x ) is defined by: ar{X} = lim {T o infty}frac{1}{T}int {t 0}^{t 0+T} x, dt. For this to be a well defined term, the limit ( …   Wikipedia

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• Dissipation model for extended environment — (a) The Brownian particle in the Caldeira Leggett model experiences a fluctuating homogeneous field of force. (b) In case of the DLD model the fluctuating field is farther characterized by a finite correlation distance. The background image is a… …   Wikipedia

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• Chandler wobble — The Chandler wobble is a small motion in the Earth s axis of rotation relative to the Earth s surface, which was discovered by American astronomer Seth Carlo Chandler in 1891. It amounts to 9 metres (30 ft)[citation needed] on the Earth s… …   Wikipedia