1. Both these examples of stable and unstable equilibria are also examples of static equilibria. 2. Mechanical equilibrium, for example, is a form of static equilibrium. 3. In chemistry, we are not so much concerned with static equilibria as dynamic equilibria. 4. It is a comparative static equilibrium model and so ignores the time-lags which are so important in examining the effects of economic policy changes. 5. However, Hubble later discovered that the universe is expanding, and so removed the need for a cosmological constant to hold the universe in a static equilibrium. |