Regulator (automatic control)

Imagine you are playing with a toy car that can go very fast or very slow, and you want to make it go at the same speed all the time. To do this, you need a special tool called a regulator.

A regulator is like a tiny computer that tells the toy car how fast it should go. When you turn it on, it measures the car's speed and then adjusts its engine so that it goes at the same speed as before.

Some regulators work with other things too, like heat or pressure. For example, if you make pancakes, you have to use a pan and a stove. But if the heat is too high or too low, your pancakes will burn or take too long to cook. A regulator can help you to control the heat so that your pancakes always turn out perfectly.

In summary, a regulator is a special tool that helps to control the speed, heat, pressure, or other things of a machine so that it works the way we want it to. It's like a tiny computer that keeps everything in check.