This is called a cycle valve tube.

And this is how you make a valve.

This is actually a heart valve, which we engineered.

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

Now that's a left ventricle pushing blood up through the aortic valve you can see two of the leaflets of the aortic valve working there up into the ascending aorta.

Even trips to the dentist require that you take antibiotics, in case you get an internal infection on the valve.

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

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 trilobal shape at the bottom, which contains the aortic valve.

Great and then I didn't hear from them for weeks, so I called, and I asked, What's going on with the heart valve?

And the fact that pig heart valves have lots of these on them is the reason that you can't transplant a pig heart valve into a person easily.

People bring their own cooker, he attaches a valve and a steam pipe, and now he gives you espresso coffee.

We take the scaffold, we seed it with cells, and you can now see here, the valve leaflets opening and closing.

Its unique cool flow valve can efficiently discharge hot and damp exhaled breath from inside the respirator, allowing easier breathing for users.

Likewise, if you have the artificial valve option, you're committed to antibiotic therapy whenever you have any intrusive medical treatment at all.

So, the most beautiful thing I found at least what I think is the most beautiful in the book, is this heart valve.

So this is actually a Dutch company, so I called them up, and I asked, Can I borrow a heart valve from you?

He turned the wrong valve when he filled his cylinder he had 80 percent oxygen in his tank when he should have had 40.

The low tech bit is that it's literally a pig's heart valve mounted in the high tech bit, which is a memory metal casing.

On, more on and then off.

Snares on, snares off.

So you see the leaflets opening and closing of this heart valve that's currently being used experimentally to try to get it to further studies.

The fire disaster happened at about 10 00am and was put out at about 10 30am. It is the snifting valve inside that triggered the fire.

And they said, Well the director of the company decided not to let you borrow this heart valve, because want his product to be associated with pigs.

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But I was off on assignment.

Turn it on turn it off.

The airplane took off on time.

And some of these models so you take a bit of this cycle valve tube, you can put two matchsticks inside this, and you make a flexible joint.

And once it's in the right spot, they remove the outer shell, and the heart valve, well, it gets this shape and at that moment it starts beating, instantly.

It rained on and off all day.

They can be on and off. That's binary.

Stay on that bicycle. Fall off that bicycle.

Now, I started off on the somber note.

But what I want to get to, the next frontier, very quickly, and why the stethoscope is on its way out, is because we can transcend listening to the valve sounds, and the breath sounds, because now, introduced by G.E. is a handheld ultra sound.

She's putting on a show off her famous son.

Our plane took off exactly on time at six.

They start off on all sorts of goofy projects.

We set them off on this air hockey table.

It was raining on and off all night long.

All right. Ringer off. Everyone wants in on the action.

And we'll go off and have a conversation on that.

So there's something that goes on off the end there.

The game was called off on account of the rain.

so they turned their backs on him and went off.