We've got something.

Quay, fire syringe.

And what does it do?

Well, I'll show you what it does Seem Caught him rolling there.

Okay, I'm just gonna compress the air in it, and hopefully it will.

I don't know what's going on.

Wow, that's pretty cool.

You made a spark, and then was there any source of fire like a match or anything down there?

Well, as you can see, it's pretty transparent.

There was no match in there.

It was actually just the compression of the air on top of it, which was able to ignite the the cardinal that we had in there.

You're saying if we compress air, we can make it hard enough to ignite cotton?

Yeah.

Bye.

Because areas made up of particles.

So when you actually compressing it, you're forcing this particles to collide closer together, which is actually going to raise the temperature off in the inside of that tube them.

Okay, can you describe the apparatus for what'll there is is there's a glass chamber in there where the cardinal sits.

And as you can see, there's Theis pissing that moves up and down into that glass chamber.

And as it moves up and down, you can actually compress the air.

So it's like a little plunger like it likely to plunge yet.

Okay, so why don't we set one up?

Uh, wait, do it again.

Okay, I'll clean the remnants.

And what are the tricks here?

The trickiest Thio get not too much, but not too little animal.

And it's good to get it a raid it so that there's a lot of air, and that's what makes it much easier.

Thio.

Just like a good fire.

Is it just me, or do you feel like you're on a cooking job?

I feel like we're on the cooking.

So, yes, Who do you think would be Jamie Oliver in this situation Would be you or May Manley's her.

He's more like Nigella Lawson.

Let's face it, that's a good plan with I wish.

All right, we're ready for this.

Yes.

Was that obviously no matches?

No switches.

Know anything?

Okay, um, try it.

You want me to try and do you have the strength we're gonna find out?

Find out it's gonna be over.

Think.

Okay.

So what I'm gonna try to do is compress the air in there, and by compressing it, I'm going to increase its temperature because we're pushing all these air molecules together.

And if I get it hot enough to the ignition point of cotton, hopefully cardinal catch on fire.

I've heard that the auto ignition temperature of cotton is about 400 degrees Celsius so you can get quite a quite enormous amounts of temperature from a very quick compression.

Three, 21 surprised beginner's luck.

Check that up.

So I guess we could generalize and say, If you do the compression quite slowly, then well, there's time for the heat to escape out of the air.

And so we don't actually get ah, high high enough temperature to cause according to ignite.

Yeah, and there's actually a word for that.

It's called a DEA Batic Compression.

That's the one where there's enough heat generated quickly enough so that we can get that auto ignitions.

Yes, on 80.

About a compression would be one in which the heat doesn't escape from the gas.

Southern Have the time to absolutely.

All right, well, let's go see if we can auto ignite some other things.

Yeah, maybe.

Come here.

Okay.