However, some things behave much differently at very cold temperatures, and they are interesting for that reason.

The big thing is that things should behave according to rules.

They study what things are made of (matter) and how things behave.

In fact, now that he came to think of it, the thing had been behaving very strangely these past few weeks.

A good start for understanding gravity is to run experiments on how things behave in a gravitational field.

So this thing is very small and well behaved.

All around us, things were behaving in unlikely ways.

Those things behaved exactly like photons, except he could not see them.

It's important that things (especially the enter key) behave in the same way instead of getting into invisible modes.

But what happens when they finally realize that things are not behaving as they believed?