Oh, there's a butterfly!

The butterfly flew away.

That butterfly has died.

Once, Zhuangzi dreamed he was a butterfly, but when he woke up, he wasn't sure whether he was Zhuangzi who had dreamed being a butterfly or if he was a butterfly now dreaming he was Zhuangzi.

Once, Zhuangzi dreamed he was a butterfly, but when he woke up, he wasn't sure whether he was Zhuangzi who had dreamt being a butterfly or if he was a butterfly now dreaming he was Zhuangzi.

Those are actually all real butterfly specimens.

Is it a butterfly or a moth?

There is a butterfly in the kitchen.

This is called a cycle valve tube.

They're butterfly specimens who have a natural camouflage.

The life span of a butterfly is short.

This species of butterfly has already gone extinct.

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.

And Chip Taylor, our monarch butterfly expert, he replied, Nothing lasts forever.

And Chip Taylor, our monarch butterfly expert, he replied, Nothing lasts forever.

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

But it was his production of a butterfly that was the most beautiful.

Or another analogy would be, a caterpillar has been turned into a butterfly.

Those of you from North America will be familiar with the Monarch butterfly.

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.

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

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.

There is a girl, Julia Butterfly Hill, who lived for a year in a tree because she wanted to protect the wild oaks.

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.

I had a butterfly period, a snake period, a bird period, a fish period, a cave period and finally and definitively, an ant period.

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?

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?

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.

For a country, opening up is like coming out of the cocoon and becoming a butterfly. There will be pain, but there will be new life.

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.

We need to recognize the butterfly effect what we do in our very own homes will affect our brothers and sisters in a distant corner of the world.

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.

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 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.

I'm going to get up in the morning and think, what can I do for even one other person, even a dog, my dog, my cat, my pet, my butterfly?

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.