Radiation reaction

Radiation reactions happen to particles that move really fast. When you move really fast, like a cheetah running, the air around you also moves and makes it harder to run faster. In the same way, particles moving really fast cause a sort of disturbance in the electric fields around them. This disturbance creates waves of energy, which are called radiation.

Now, these waves of energy don't just disappear into thin air. They push back on the particles that created them and decrease their energy. This is because the particles lose some of their energy by releasing radiation waves. This process is known as radiation reaction.

Imagine you are on a swing, and you pump your legs really hard to go higher and higher. The higher you go, the harder it gets to go any further. This is because air resistance or "radiation reactions" are pushing back against you, making it harder to keep swinging. This is the same idea with particles moving really fast - the faster they move, the more they push back against the environment around them, and the harder it gets for them to go any faster.

In conclusion, radiation reaction is a natural process that occurs when particles move really fast and release waves of energy, which directly affect their energy and movement forward.