Ray inertia
Inertia - it's specific reaction's energy leftovers, which appear when normal energy cycles of that reaction are disturbed by external destructive forces. The magnitude of inertia depends on the energy of destructive forces before contact with reaction. The more powerful impact of destructive forces is, the more energy inertia has. The principle of inertia can also be applied to energy movements inside of various particles, including the smallest - subatomic particle. As it was mentioned before, the smallest particles are compounds of similar kinds of rays, where they move in circles and create chain reactions, so the biggest objects in the Universe (which, in essence, are made of subatomic particles) also consist of chain reactions, just far more complex. So, because the environmental conditions are never 100% favorable due to various external destructive forces, that provoke the phenomenon of ray inertia inside of subatomic particles. For example, a subatomic particle crashed into another subatomic particle, which had less energy than the previous one. In that case, there was a contact between the cores of both subatomic particles and it caused a disturbance in the movements of rays inside them. But it was temporary because this contact wasn't caused by destructive forces (phenomenons, which have the same structure, can't act as destructive forces to each other. In order to a phenomenon be considered as a destructive force, it has to get energy from consuming the constituents of another phenomenon or it can act as a certain type of energy emitters, which separate energy stimulator from a phenomenon, which is being attacked and break down the chain reaction in this way). So, when two subatomic particles crash into each other, the energy of rays are disturbed in their cores and then, like in an ordinary inertia, it causes a temporary change in moving direction of similar kinds of rays. In other words, similar kinds of rays temporary lose contact with each other and move from inertia in different direction until they run across each other again and renew the previous chain reaction between them. And, after that, both subatomic particles recover their previous forms.