Yes, we have breathing holes.

And, in a moment, we're going to see a view of the airflow.

But it's being balanced like that in equilibrium.

And this was that Tuesday morning in September, and it was pretty nice outside.

As the wind comes up, it has to go over the cliff, so as you walk through the air, it goes around your body, some has to go over you.

like water going down a drain.

Turbulence. Turbulence.

Twenty feet down there's no vibration, but the problem is turbulence.

Air.

And the first things that you can see from this graph is, if you look at the blue data points, which are the mechanically ventilated air, they're not simply a subset of the green data points, which are the outdoor air.

How will it end? to nine year olds.

Could be an optical illusion, a mirroring effect. Caused by wind shear and light, a speed mirage, if you will.

Political unrest was in the air.

The air of Sydney is cleaner than that of Tokyo.

Extractor Hood

I mean, if I just go through some of them now

There's no damned air here at all.

Semiconductor is something that's either a conductor or an insulator depending on whether a voltage is applied to it.

Turbulence.

Water and air are both fluids.

Uh, it's ventilation.

When the ballons are laid out, they're totally flat.

Extractor hoods are used to filter out gasses from chemical reactions. The air, once cleaned, is pumped outside of the building.

A han noston ned 'wilith. I smell it in the air.

The air...

What about the air?

Air is a mixture of gases.

Is she doing well?

Turbulence.

Turbulence on the plane?

Gotten into the vent yet?

Consider this.

Ventilating easily.

Come. You sneaky bugger.

Because remember, we spend 90 percent of our lives indoors.

This is all the air that is available to us.

The air of hills is cooler than that of plains.

Sona lights up again.

and the gas will travel up that shaft and filter through the ventilation system that leads directly to parliament.

So you can then imagine this column moving up several hundred kilometers out, and then the lower atmosphere begins to rush in and fill that vacant space, that void.

Bad wind shears. We have to drop pretty fast.

We are air.

Get some air ?

This is called a cycle valve tube.

Usually when you buy a ventilator in a hospital, you buy a different one for children, you buy a different one for transport.