Motive and Movement
This notion is the rule of nature, and it applies to everything. When an object gets shredded the flow of air will be able to move it quickly. However, of course, all things require motive, and the motive for all things needs to be something else. Every motive has a cause. For a machine to move, it needs the hand of human beings to move it; the hand is the motive.
One motive in nature is the air and wind that can move a feather much faster compared to a piece of iron. In the same sense, gasses that are composed of elements and particles themselves can be motives for the movement of small particles.