unstable equilibrium

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Related to unstable equilibrium: neutral equilibrium

un·sta·ble e·qui·lib·ri·um

equilibrium in which the response to a small perturbation will tend to make the perturbation greater (for example, a logged feedback process of zero order).
References in periodicals archive ?
This is why the unstable equilibrium is pushing us now in the other direction, towards disintegration.
A classical system may be in stable, neutral, or unstable equilibrium.
It is impossible to calibrate an inherently unstable equilibrium, and it is cynical that both sides in this conflict have attempted to do this for such a long period of time.
Consequently, B is a position of unstable equilibrium, while C and C are stable.
The current state of security, you can specify the concept of unstable equilibrium, ie it is possible at any moment to collapse a significant portion of insurance or tilting of one of the upright section of the diaphragm wall.
The subactuated biped robot has an unstable equilibrium point and the control main task is to maintain the robot state near to neighborhood of the equilibrium point in order to prevent falls.
To our question whether Tunisia will be able to quickly get out of this crisis, Mezni Haddad said that at the level of the political crisis, players will eventually find the solution, noting that Ennahda, which is the origin of evil, will be able to establish a new unstable equilibrium with this interchangeable opposition.
This is all the more incomprehensible because the centrifugal forces and gravitational forces (or electrostatic ones for the atom) have a different dependence on the distance that leads only to an unstable equilibrium.
Without justification he dismisses this case, probably because this would imply an unstable equilibrium.
The unstable equilibrium points of Coulomb and spring forces at the right part of the graph illustrate how the actual operating point will be affected by the roughness-distorted electrical field.
The picture is not a happy one of gender equality in the "good society," as has been portrayed in much sociological literature, but one of unstable equilibrium and suboptimal outcomes, including lack of serious attention to children and their differential opportunities, increasingly sharp polarizations in child investment and parenting among families, and a disconnect in the stages of the life cycle.
We mention that the superscript s and u are used to point out the stable respectively unstable equilibrium state.