Welcome to Ark Two I am a Radiological Scientific Officer and
this is our survival complex. One of the first questions I got be asked
by everyone is how do you get fallout out of the air.
In the case of a nuclear war, and that is what this survival complex is build for, that
is one of the very most important things to do
and that is what I am going to explain in this video.
The big tanks that are on top of our shelter are the air filters.
First, let us review why the air needs to be filtered.
When a nuclear weapon is detonated, near the ground, a mushroom cloud appears goes up into
the stratosphere. This cloud carries with it dust from the ground
and nuclear particles which have attached themselves to dust or debris.
The wind blows the dust downwind. It can be a relatively narrow tread trail
but it can extend hundreds of miles downwind. If you are a half mile either side of the
tail you may be perfectly safe. On the other hand there may be lapping fallout
from multiple detonations. And the wind may spread it at a wide area.
Fallout is usually just very fine dust. And we can test for it by just using a regular
dinner plate. Just take a clean plate, put it outside, come
back and check it a few hours later, a number hours later.
Wipe your fingers across it and if you don't find any dust
feel any dust then its probably OK. What we have here is an air intake tank
with a down-facing pipe that is several feet above the ground.
The Fallout falls out of the air onto the ground which is why we call it 'Fallout'
and it doesn't fall into the pipe. We will now go look inside the tank.
This design alone keeps most of the Fallout from entering the shelter.
There are number of peepholes all around the tank
so that we can see any other tank in any other direction from inside.
Because using this design, very little Fallout remains suspended in the air.
Many people worry about buying expensive filters for their shelters.
But just hanging a damp bed sheet at the bottom, where the air comes into the shelter, is enough
to take out any remaining Fallout particles.
So this is the air intake shaft, this is also an emergency exit from the shelter.
We have this steel ladders that go down into the shelter.
We use the shaft sometimes for others things, like to bring up exhaust or something like
that. We have a pipe here that is extended up this shaft.
We go down into the shelter, simply step around here, ladder and down we go.
Thank you for watching! And please remember that Ark Two is not just
about your survival. It is about service to humanity and preparing
to reconstruct society.