Shutter priority

Shutter speed

( shutter clicks )

(Thuds) (Camera shutter)

(Camera shutter) (Breathing)

So this valve is called the Tricuspid valve.

And it passed through the valve here. So this valve is called the Mitral valve.

Civil Horizontal Valve

One will be the tricuspid valve and the other the mitral valve.

But before it goes it has to passed another valve. So this is a valve right here. Call it Pulmonary valve.

leave your finger down no shutter lag!

Johnson, can you hear me? ( shutter clicks )

Shutter lag is the time between your pressing the shutter button and the moment the camera actually snaps.

The main valve is turned off.

Here you've got the aortic valve.

Your grandfather (maternal)... ...was a shutter man (opens and closes the shop shutter, i.e., while his wife works, he plays).

This is called a cycle valve tube.

Up here you have the pulmonary valve.

And then the final valve, I need to find a nice spot to write it maybe to right here, this final valve that passes through is called the Aortic valve.

You can see how the pulmonary and aortic valve are closed when the mitral and tricuspid valve are open.

Can I borrow a heart valve from you?

And this is how you make a valve.

It's gonna go back perhaps through the mitral valve, it can go there, or it might go through the tricuspid valve.

They had thrown the old shutter in the garbage collection place.

Here, each shutter can be thought of as a single difference.

This is actually a heart valve, which we engineered.

I promise you, this time it won't be double exposed. ( shutter clicks )

I welded the breech, but the valve is still gaping.

Does the color of the valve matter? What matters here?

Hold the button down until you hear the shutter make a clicking sound.

I wanna make sure the supply's as great as the demand. ( shutter clicks )

Let's watch. (Sound of air escaping from valve) (Music) (Whirring sound)

Lord George Murray's 'shutter telegraph' was Britain's reaction to the Bonapartist threat to England.

Open the air inlet valve to supply compressed air to the machine

And the way you engineer this heart valve is the same strategy.

And in this situation, immediately we realize it makes no sense to shutter this asset.

No, darling, just figuring the angle. ( shutter clicks ) Oh, Carol, do you have that layout ?

You can see two of the leaflets of the aortic valve working there.

And the shutter speed of the camera actually makes it slightly less effective in this case.

Here you have our tricuspid valve. And I'm gonna label it just as 'T'

I've drawn the pulmonary valve as being open, but is that really the case?

On the starboard side, there's a big valve! Can you crank that boat down?

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

It has a funny tri lobal shape at the bottom, which contains the aortic valve.

The shutter speed should be around 1 125th or faster so that the action is sort of frozen.