I peeked in on him now and then through the ventilator.

Once he asked me for a drink of water and I handed it to him through the ventilator.

This in turn drew cooler air in from the lower vent, providing constant circulation of cooler air.

Ventilation.

Slot

The air handling system inside it

It is the ventilation.

Input Slot

InputSlot

Here's an opening.

The ventilation isn't good.

This is one of their ventilator shafts.

Hole radius

No, no. It's a badger.

Hey! How does he rate a private breeze?

He came down through the air shaft.

A body orifice is any opening in the body of an animal.

A second opening simulates the emergency vent opening and is closed by a bursting disk.

foramina, ) is any opening.

There's a hole in the nylon!

This matter of the air vent... Isn't it rather strange?

It's the lack of air in here.

You can only make this assumption when that output hole is much smaller than the input hole.

Here, A mouse has climbed into the blower behind the regulator rack, set blower to vibrating. Result no more mouse.

Here, A mouse has climbed into the blower behind the regulator rack, set blower to vibrating.

Right here we've drawn each whole.

They connect in a manhole like this.

Close off your right nostril with your right thumb.

Then he sewed up his own anus.

Chapter I. Down the Rabbit Hole

It's burning a hole through my hands.

There's a hole in the wall there by the door.

Obviously the wind tunnel had a place, but the ability now with the computer to explore, to plan, to see how that would work in terms of the forces of nature natural ventilation, to be able to model the chamber below, and to look at biomass.

Passivhaus designs usually integrate the heater with the ventilation system.

This is the natural posture of a man sitting, squatting for ventilation purposes.

And if you want some ventilation you can open that door just there behind you.

Leaving an exit hole the size of a half dollar.

Remember, from the Hole in the Wall.

They're called the hole in the wall experiments.

And I built a similar hole in the wall.

It's because I have some room to breathe.

Just stopped there to measure the keyhole. Why, you...

The knife falling' through a hole in his pocket.

But if you perhaps could manage to lower the neck...

They allow you to mechanically breathe, or mechanically ventilate.