EDIT: I am offended that you guys think my awesome explanation is from GenAI.

Imagine a circuit. Like a flashlight. The electrons flow from the battery to the lightbulb and back. It’s like a race track. They proceed in an orderly fashion.

There are some other electrical components. If you hook them up in just the right way, you get something called an LRC circuit. The electrons don’t flow in an orderly way now. They go back-and-forth. In spurts and fits. You’re making them wiggle. There are some very nice equations that allow you to specify exactly how much and how fast the wiggling is.

One cool thing about a circuit with wiggling electrons is that if you put some wires close by those electrons will also start wiggling.

This is called radio.