What is Κ (kappa) mechanism?

Κ (kappa) mechanism is like having a special helper inside a toy that keeps it going even when you stop pushing it.

Imagine you have a wind-up car. When you twist the key, it starts moving. But if you let go, it slowly stops. Now imagine this wind-up car has a secret inside, every time it moves, it makes a tiny spring tighter. That tight spring helps push the car again when it starts to slow down. This is like the kappa mechanism, it helps things keep going by using little helpers that store energy and release it just when needed.

Think of the wind-up car as something big, like a star or a planet. When it moves, it stores some extra energy in parts of itself, kind of like winding up again. This stored energy is what keeps the movement going, even if there's no more push from outside.

So, the kappa mechanism is like that secret wind-up inside the car, it helps things keep moving by using little bits of stored energy to help them along.