Larmor precession

Okay kiddo, so you know how magnets work, right? They can make other magnets or metal things move and change directions.

Well, when you put something called a "spin" on the tiny particles inside atoms, it acts kind of like a tiny magnet. This happens in things like atoms in your body or in metals.

Now, when you put these spinning particles in a magnetic field (like the field around a magnet), something cool happens called Larmor precession.

Basically, the spins start to move and change direction in a circle or spiral around the magnetic field. This happens because of a special rule that says spinning particles in a magnetic field are like little tops that want to "precess" or move around in a circle. Pretty neat, huh?

Scientists use Larmor precession to do all kinds of things. For example, they can use it to see inside your body with something called an MRI machine or to study the magnetic properties of materials.

So that's Larmor precession, a neat little effect that happens when tiny spins interact with a magnetic field.