I've made hundreds of dives in submersibles.

I heard that there were alligators in the sewers.

Valves control fluid flow and regulate pressure.

So, to go deeper, most biologists have turned to submersibles.

For all the activities like shaving, showering, grooming etc.

Often what jams us up is sewage.

Another common complaint relates to the sewage smell inside their houses.

Alvin and Sea Cliff and Cyana, and all the major deep submersibles we have, which are about eight.

Michael Pritchard Okay. We've got some runoff from a sewage plant farm.

Single and double hulls Modern submarines and submersibles, as well as the oldest ones, usually have a single hull.

A bomb went off.

I have a bomb.

It becomes the world.

The other primary way is we go down with submersibles and remote operated vehicles.

The sewage is still thrown in the bay with virtually no treatment.

It was called it was called The Air Pump, or something like The Leviathan and The Air Pump.

So different cities around the world treat their waste water differently. Some cities process it.

One exposes the problem of sewage spill on São Conrado Beach.

Like a suicide bombing.

Or a barrel bomb?

They didn't find the bomb.

I have a bomb.

It's not a bomb.

It's a time bomb.

So, the bottom line is that almost all research using submersibles has taken place well below 500 feet.

Another potent weapon of the Il 2s was the PTAB shaped charge bomblets ( protivotankovaya aviabomba , anti tank aviation bomb ).

You had water, sewer networks that allowed for this kind of unchecked expansion.

Enter the atomic bomb.

And this is the pump.

Oppenheimer, who had built the bomb.

Defusing the Syrian Time Bomb

The bomb missed its target.

Do you know how to deactivate a bomb?

That fighter plane dropped a bomb.

The bomb destroyed three houses.

There's a bomb on board!

Agent 008), and (a.k.a.

As of November 2010, less than 50 of the city's sewage receives proper treatment.

This is the leg of a suicide bomber.

Soldier That's a fucking car bomb!

We should never use an atomic bomb again.

But scuba diving, submersibles and all the work that we're setting about to do here will help rectify that.

Well, the reason we're doing this offshore is because if you look at our coastal cities, there isn't a choice, because we're going to use waste water, as I suggested, and if you look at where most of the waste water treatment plants are, they're embedded in the cities.

Out here today, there are a bunch of people Ahmadinejad for example who would like not only to build a bomb, but test a bomb.

Tsar Bomba ( Tsar of bombs ) is the nickname for the AN602 hydrogen bomb, the most powerful nuclear weapon ever detonated.