We heat them up, we add a little bit of salt, we heat them up to almost boiling and cool them down, and as we cool them down, the short strands bind the long strands and start to form structure.

And then in the winter things cool down.

The machines in our data centers are always working. Cooling towers like these pipe in water to cool them down and keep them running.

Take it off the flame and pour water on it, or let it cool down, the piston moves down.

He saw it written down somewhere. He's like, Eric that's a really cool concept.

We cool them with breezes. We heat them with sunshine.

Just say to them, 'That's cool. That's fantastic.

But the really cool thing about them is when we put them together.

And you know what's cool? I'm actually one of them.

My colleagues in infra red astronomy call minus 200 Kelvin is cool for them.

That's cool.

It's cool!

Very cool!

Cool, yeah?

That's cool.

Cool off!

And, in exchange for me working with them, they taught me how to be cool.

So those are cool images. But these are ones I think are really cool.

The heat was so intense, that hoses were used to cool down firefighters fighting extremely close to the fire, and with no protective clothing.

Cool prize, Abby!

Cool pollen, though.

Isn't that cool?

Isn't that cool?

That's pretty cool.

Robot Oh, cool.

So so cool!

Isn't that cool?

So, very cool.

It's really cool.

They're pretty cool.

That stuff's cool.

So it's cool.

It's really cool.

Okay, that's cool.

That isn't cool.

Some of them are kind of cool looking. It's like Hey, why didn't they try that?

Not one of them can tell me why this stuff is so cool, why it's so important.

Because Moohyuk is cool!

And that's pretty cool.

It's cool for me.

CA That's very cool.

And that's pretty cool.

Ah, isn't that cool?

CA Well that's cool.

This is fucking cool.