stationary action

stationary action
мат. стационарное действие

Большой англо-русский и русско-английский словарь. 2001.

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  • Action (physics) — In physics, the action is a particular quantity in a physical system that can be used to describe its operation. Action is an alternative to differential equations. The action is not necessarily the same for different types of systems.The action… …   Wikipedia

  • Action (piano) — The action of a piano is the mechanical assembly which translates the depression of the piano keys into a felt hammer striking the strings. The illustration to the right is of a circa 1907 Wessell, Nickel and Gross Upright action; the parts are… …   Wikipedia

  • Principle of least action — This article discusses the history of the principle of least action. For the application, please refer to action (physics). In physics, the principle of least action or more accurately principle of stationary action is a variational principle… …   Wikipedia

  • Effective action — In quantum field theory, the effective action is a modified expression for the action, which takes into account quantum mechanical corrections, in the following sense: In classical mechanics, the equations of motion can be derived from the action …   Wikipedia

  • Back-action steam engine — Steam engine Steam en gine ([e^]n j[i^]n). An engine moved by steam. [1913 Webster] Note: In its most common forms its essential parts are a piston, a cylinder, and a valve gear. The piston works in the cylinder, to which steam is admitted by the …   The Collaborative International Dictionary of English

  • Terrestrial stationary waves — are a phenomenon arising in the Earth s interior space because of the conductive ionosphere s action as a waveguide. They were considered by Nikola Tesla to be his most important discovery. The limited dimensions of the earth cause this waveguide …   Wikipedia

  • Bolt action — The term bolt action refers to a type of firearm action in which the weapon s bolt is operated manually by the opening and closing of the breech with a small handle, most commonly placed on the right hand side of the weapon. As the handle is… …   Wikipedia

  • Nambu-Goto action — The Nambu Goto action is the simplest invariant action in bosonic string theory. It is the starting point of the analysis of string behavior, using the principles of Lagrangian mechanics. Just as the action for a free point particle is… …   Wikipedia

  • Nambu–Goto action — The Nambu–Goto action is the simplest invariant action in bosonic string theory, and is also used in other theories that investigate string like objects (for example, cosmic strings). It is the starting point of the analysis of zero thickness… …   Wikipedia

  • Conference for Progressive Political Action — The Conference for Progressive Political Action was officially established by the convention call of the 16 major railway labor unions in the United States, represented by a committee of six: William H. Johnston of the Machinists Union, Martin F …   Wikipedia

  • Frederica naval action — Infobox Military Conflict conflict=Frederica Naval Action partof=the American Revolutionary War date=April 19 1778 place=off St. Simons Island, Georgia result=Continental victory combatant2=Britain combatant1=United States commander2=Captain… …   Wikipedia


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