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

I'm still heating the air every time and cooling the air every time.

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

Airport runway, taxiway

But it's being balanced like that in equilibrium.

On the sidewalk!

Get off the street!

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.

Turbulence. Turbulence.

Political unrest was in the air.

Water and air are both fluids.

like water going down a drain.

Air.

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

How will it end? to nine year olds.

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

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

Now on glide path. Mark course.

Air traffic's been grounded.

We have to overcome our poverty.

Turbulence.

Is she doing well?

Turbulence.

Turbulence on the plane?

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

The air...

What about the air?

Clouds sail across the sky.

A shooting star dashed through the sky.

Are you saying commercial flights are in danger?

Bad wind shears. We have to drop pretty fast.

Is this seat taken?

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.

There's no damned air here at all.

Consider this.

Okay, take her down!

And so you can kind of hack a pencil, just by thumbtacking into it with a little piano electrical circuit.

It's nice.

Two groups of Mujahideen started fighting.

A bit of air?

There were white clouds sailing in the sky.

I wish your efforts get rewarded. The white clouds flow over the sky

The air of Sydney is cleaner than that of Tokyo.

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

These will be your transports for the afternoon. No drivers? No.