You ought to try underwater photography.

(Narrator The Spyfish is a revolutionary subaquatic video camera.

Everything is under water, under deep water.

Under water?

It makes you convulse underwater not a good thing to happen underwater.

For going under the water!

I'm going under the water.

Under the brook

(d) Work underwater or underground

the freedom for underwater flight.

And because I'm an underwater photographer,

A submarine boat.

Burial ceremony... under the sea.

Did she go under?

Hearing underwater Hearing threshold and the ability to localize sound sources are reduced underwater, in which the speed of sound is faster than in air.

You know that icebergs are mostly underwater, their immense bulk hidden beneath the water.

And so his entire body really is underwater.

What's going on underwater?

Under the water and in the air.

Do you live down there?

Get that head underwater!

Who pushed him under water?

You can't talk underwater.

Do you like scuba diving?

You could have that kind of immersive experience of being underwater of feeling like you're underwater seeing what's going on.

The problem happens when you start to go underwater.

David Gallo shows underwater astonishments

Anthropogenic underwater noise pollution

That's fine, it's how we're designed.

But the patent for underwater flight

life underwater, the Buddha replied...

You mean a submerging boat?

We do our hunting and farming here.

It was under water a whole day.

Sam, all this is going to be under water.

My main tool is an underwater video with a hydrophone, which is an underwater microphone, and this is so

And you can use that now to go for many kilometers horizontally underwater and to depths of 200 meters straight down underwater.

In work underwater or underground or in open cast mines

XII. Underwater cultural heritage

This is man s first attempt at flying underwater.

They re one of the first subsea aviators.

And of course, sharks, fish, are underwater most of the time.

looking out the window at a little pond of water beneath the sea.

This is man's first attempt at flying underwater.

They're one of the first subsea aviators.