1 | And this is an unstable equilibrium. | |
2 | This is the latest chapter in a decades-long uneasy standoff. | |
3 | So you see, that's the difference between stable equilibrium and unstable equilibrium. | |
4 | By this principle we developed a training equipment of non-stabilized equilibrium. | |
5 | Balance comfortably on the ball, then use the ball to bring the knees forward to the chest. |