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Humans are always trying to be better, brighter, faster, stronger, | 0:00:02 | 0:00:04 | |
tougher. It is one of the things that makes us human. | 0:00:04 | 0:00:07 | |
But Nature has spent 3.5 billion years producing | 0:00:07 | 0:00:11 | |
ingenious answers to life's questions. | 0:00:11 | 0:00:14 | |
So a lot of the problems we're trying to solve | 0:00:14 | 0:00:18 | |
have already been solved by evolution. | 0:00:18 | 0:00:21 | |
Meaning the animal kingdom is teeming with bright ideas. | 0:00:21 | 0:00:26 | |
'Like how to survive a fall from space...' | 0:00:27 | 0:00:31 | |
Yes, it's gone! | 0:00:31 | 0:00:34 | |
'..avoid ever getting wet...' | 0:00:34 | 0:00:35 | |
I am staggered! | 0:00:35 | 0:00:38 | |
'..or withstand an impact of 1200G.' | 0:00:38 | 0:00:43 | |
Oh, that feels pretty harsh! | 0:00:43 | 0:00:46 | |
'In this programme, we'll reveal some amazing animal abilities.' | 0:00:46 | 0:00:51 | |
That's astonishing! 'I'll discover how those same animals have inspired | 0:00:51 | 0:00:56 | |
'a series of human inventions at the very frontiers of science.' | 0:00:56 | 0:01:00 | |
Yeah, it's driving itself. It's brilliant! | 0:01:00 | 0:01:04 | |
'We'll have to go around the world | 0:01:04 | 0:01:06 | |
'and into some pretty unlikely situations.' | 0:01:06 | 0:01:09 | |
Oh! Oh, my God! | 0:01:09 | 0:01:13 | |
'Because you never quite know what surprises the animal kingdom | 0:01:13 | 0:01:17 | |
'has in store for you.' | 0:01:17 | 0:01:19 | |
It's the waiting that gets you. | 0:01:19 | 0:01:20 | |
It's all part of the miracle of nature. | 0:01:22 | 0:01:26 | |
If you're going to look to nature for inspiration, | 0:01:41 | 0:01:44 | |
and we have ever since cavemen first used warfare and used bone tools | 0:01:44 | 0:01:51 | |
as substitute teeth and claws, | 0:01:51 | 0:01:54 | |
then you're always going to come up against one big, ultimate dream | 0:01:54 | 0:02:00 | |
that happens in the natural world. | 0:02:00 | 0:02:02 | |
Flying. | 0:02:04 | 0:02:05 | |
In 1485, | 0:02:21 | 0:02:23 | |
Leonardo da Vinci designed a flying machine by studying birds. | 0:02:23 | 0:02:28 | |
It's the obvious thing to do, to look to the skies for inspiration | 0:02:28 | 0:02:32 | |
and to admire creatures like these Greylag geese, | 0:02:32 | 0:02:36 | |
who do so gracefully what we can't. | 0:02:36 | 0:02:39 | |
You would think that by now, | 0:02:44 | 0:02:46 | |
more than 100 years after we first invented aircraft, | 0:02:46 | 0:02:48 | |
after airliners and jet fighters and spacecraft, | 0:02:48 | 0:02:52 | |
there wouldn't be much left we could learn from birds | 0:02:52 | 0:02:55 | |
about flying...but you'd be wrong. | 0:02:55 | 0:02:58 | |
And it's all about their bodies and the way they're built. | 0:03:00 | 0:03:04 | |
In general, the bigger the bird, | 0:03:11 | 0:03:13 | |
the bigger the wings it needs to get it up into the air. | 0:03:13 | 0:03:17 | |
It all makes perfect sense. | 0:03:21 | 0:03:24 | |
Until you get to this guy... | 0:03:25 | 0:03:28 | |
..whose big body and relatively small wings make him look | 0:03:31 | 0:03:35 | |
about as capable as graceful flight as I am. | 0:03:35 | 0:03:39 | |
But this bird's unique characteristics have helped | 0:03:41 | 0:03:44 | |
inspire a revolutionary new form of human transport... | 0:03:44 | 0:03:48 | |
..that might just transform the way we explore our planet. | 0:03:50 | 0:03:54 | |
This is Cody, and he is a cape vulture. | 0:04:01 | 0:04:05 | |
And these are not being worn for fashion reasons. | 0:04:05 | 0:04:08 | |
That's a really big beak | 0:04:08 | 0:04:11 | |
and eyes are kind of tempting, apparently. | 0:04:11 | 0:04:14 | |
'But to find out what makes cape vultures like Cody | 0:04:18 | 0:04:22 | |
'so special, I'm going to need to get higher. | 0:04:22 | 0:04:26 | |
'Quite a lot higher.' | 0:04:27 | 0:04:30 | |
It's about 500 metres down there. | 0:04:42 | 0:04:46 | |
And shortly, I shall be jumping off the edge | 0:04:46 | 0:04:51 | |
with nothing but the contents of that man's rucksack. | 0:04:51 | 0:04:54 | |
between me and certain doom. | 0:04:54 | 0:04:58 | |
That's assuming he's brought the right rucksack | 0:04:58 | 0:05:00 | |
and we don't jump off the edge with his flask and some sandwiches. | 0:05:00 | 0:05:03 | |
'Walter Nesser is a vulture expert. | 0:05:05 | 0:05:10 | |
'Unfortunately for me, he also happens to be an expert paraglider.' | 0:05:10 | 0:05:15 | |
Oh, now I feel secure. | 0:05:17 | 0:05:19 | |
-That's it. -That's it? -Yeah. | 0:05:19 | 0:05:21 | |
For the take-off, what I want you to do is cross your arms over your chest | 0:05:28 | 0:05:31 | |
onto these straps here, so you just... Yeah, that's it. | 0:05:31 | 0:05:34 | |
-Is everything attached? -Yeah, everything. | 0:05:34 | 0:05:36 | |
That's connecting you to this. That's connecting me to this. | 0:05:36 | 0:05:40 | |
Is the first bit the worst and then | 0:05:40 | 0:05:42 | |
suddenly it's all kind of sedate and beautiful? | 0:05:42 | 0:05:45 | |
Yeah, the anticipation is really the scary part. | 0:05:45 | 0:05:47 | |
-Yeah, it is pretty bad. -Especially when it looks like this. | 0:05:47 | 0:05:50 | |
I mean, this isn't your average paragliding site, is it? | 0:05:50 | 0:05:54 | |
I don't want to wait too long, Walter, I really don't. | 0:05:54 | 0:05:57 | |
Just don't... I just want to... Oof! | 0:05:57 | 0:06:00 | |
-All right, the wind is really good, are you ready? -No. | 0:06:00 | 0:06:04 | |
Let's go. | 0:06:04 | 0:06:06 | |
Oh! My God! | 0:06:16 | 0:06:18 | |
Whoa! | 0:06:20 | 0:06:22 | |
Wow! | 0:06:23 | 0:06:24 | |
-All right, now you can sit back in the harness. -Oh, sitting back in the harness? | 0:06:25 | 0:06:29 | |
Quite close to this rocky cliff sides! Look at the drop! | 0:06:31 | 0:06:35 | |
Ah-ha! I don't want to be a vulture! | 0:06:35 | 0:06:37 | |
-You doing all right? -I'm scared...on an Olympic scale. | 0:06:55 | 0:06:58 | |
All right, have a look up to your left. | 0:06:58 | 0:07:01 | |
Whoa! | 0:07:01 | 0:07:02 | |
There's millions! | 0:07:02 | 0:07:05 | |
-How do we get in amongst them? -We really need a thermal. | 0:07:05 | 0:07:08 | |
'A thermal is a column of warm rising air, | 0:07:08 | 0:07:12 | |
'created as ground heats up unevenly in the sun. | 0:07:12 | 0:07:16 | |
'Which sounds kind of gentle. | 0:07:16 | 0:07:19 | |
'It's not.' | 0:07:19 | 0:07:21 | |
Wow! | 0:07:21 | 0:07:22 | |
Whoa! | 0:07:23 | 0:07:25 | |
Oh, I love it when it does that. | 0:07:25 | 0:07:26 | |
I love that, Walter, that's nice. Oh, that's nice! | 0:07:29 | 0:07:31 | |
Do you mind if I get changed? | 0:07:33 | 0:07:35 | |
I didn't bring any spare jeans with me! | 0:07:35 | 0:07:38 | |
Holy...! | 0:07:38 | 0:07:40 | |
'But the rewards are worth it.' | 0:07:41 | 0:07:43 | |
Look at them now, they're coming to join us! | 0:07:43 | 0:07:47 | |
We are circling with them, it's astonishing! | 0:07:47 | 0:07:50 | |
We're in the same thermal that they are. | 0:07:50 | 0:07:52 | |
Ah, this is incredible. | 0:07:54 | 0:07:56 | |
This site is home to a third of all the world's cape vultures, | 0:08:01 | 0:08:06 | |
and right now it seems like every last one of them | 0:08:06 | 0:08:09 | |
is flying alongside me. | 0:08:09 | 0:08:10 | |
I wouldn't have believed that those birds I saw | 0:08:20 | 0:08:22 | |
flapping about on the ground so inelegantly | 0:08:22 | 0:08:25 | |
were capable of circling with such grace. | 0:08:25 | 0:08:29 | |
And yet, here they are doing it - elegantly, beautifully. | 0:08:29 | 0:08:34 | |
It sounds impossible, but they make it look easy. | 0:08:34 | 0:08:38 | |
And up here, I suddenly realise something - | 0:08:38 | 0:08:42 | |
that's why we're used to seeing vultures circling in the movies - | 0:08:42 | 0:08:46 | |
it's because they're in a thermal. | 0:08:46 | 0:08:49 | |
So, this is all about being able to exploit the exact same thermals | 0:08:50 | 0:08:53 | |
that we're exploiting now. | 0:08:53 | 0:08:55 | |
Yeah. They've got these reduced spans, | 0:08:55 | 0:08:57 | |
but still with good performance. | 0:08:57 | 0:08:58 | |
And you need to be really manoeuvrable. | 0:08:58 | 0:09:01 | |
So, you need to be able to turn inside this tight bubble of air. | 0:09:01 | 0:09:05 | |
And that could be why their wings are so small - | 0:09:05 | 0:09:09 | |
so they can turn quickly enough to stay inside the column of warm air. | 0:09:09 | 0:09:14 | |
By locking their wings in position, and using the thermal's lift, | 0:09:15 | 0:09:18 | |
they can fly with next to no effort at all. | 0:09:18 | 0:09:22 | |
And by hopping from one thermal to another, the vultures' short, | 0:09:25 | 0:09:29 | |
rigid wings can carry them more than 100 miles in a single flight. | 0:09:29 | 0:09:34 | |
And it's those astonishing abilities | 0:09:36 | 0:09:39 | |
that have inspired an entirely new form of human transport. | 0:09:39 | 0:09:43 | |
This is the Super Aviator. | 0:09:53 | 0:09:56 | |
But it's not what you think. | 0:10:02 | 0:10:04 | |
Despite the name and the aerodynamic appearance, | 0:10:07 | 0:10:10 | |
this is a plane that will never leave the ground. | 0:10:10 | 0:10:14 | |
Got my head in a fruit bowl, that's nice. | 0:10:14 | 0:10:17 | |
Because it's not designed for the skies. | 0:10:19 | 0:10:21 | |
It's built to go underwater. | 0:10:23 | 0:10:26 | |
The Aviator's owner, John Jo Lewis, | 0:10:34 | 0:10:37 | |
has offered to take me for my first flight beneath the waves. | 0:10:37 | 0:10:42 | |
Forward thrust. | 0:10:42 | 0:10:45 | |
Commencing our dive. | 0:10:45 | 0:10:47 | |
-We just dived under the sea! -Woo! | 0:10:52 | 0:10:55 | |
So, Rabbit. I have to call you Rabbit, yeah? We've got handles and everything. | 0:11:07 | 0:11:11 | |
Yeah, that's right. We try and pick a two syllable word, | 0:11:11 | 0:11:14 | |
-and I've been Rabbit for quite a while. -OK, Rabbit. | 0:11:14 | 0:11:18 | |
-What am I? -You're Hamster now. -Nice. | 0:11:18 | 0:11:21 | |
-Thanks. -Actually, you've always been Hamster. | 0:11:21 | 0:11:23 | |
Yeah, OK. That's familiar. All right, so we are now... | 0:11:23 | 0:11:26 | |
Let me get this right - flying | 0:11:26 | 0:11:28 | |
-even though we are under water. -Exactly right. | 0:11:28 | 0:11:31 | |
And literally, our wings are on upside down, | 0:11:31 | 0:11:34 | |
it's as simple as that. | 0:11:34 | 0:11:35 | |
That's right. Rather than keeping us up like an airplane, | 0:11:35 | 0:11:38 | |
it keeps us down... like a flying submarine. | 0:11:38 | 0:11:41 | |
'And down is where we're going. | 0:11:41 | 0:11:44 | |
'Down to the bottom of the Pacific Ocean.' | 0:11:44 | 0:11:47 | |
You've put us in a descent down into a valley. | 0:11:49 | 0:11:52 | |
'Which is a little bit nerve-wracking.' | 0:11:54 | 0:11:56 | |
I've just had a drip of water | 0:11:56 | 0:11:58 | |
on my left arm, Rabbit, should I be worried? | 0:11:58 | 0:12:00 | |
-No, that's just condensation. -I knew that. | 0:12:00 | 0:12:03 | |
I've got a special towel here, | 0:12:03 | 0:12:05 | |
my submariner's anti-condensation towel, | 0:12:05 | 0:12:07 | |
because every time it drips on my left arm, I have an urge to scream. | 0:12:07 | 0:12:11 | |
'Luckily, I soon get side-tracked.' | 0:12:11 | 0:12:15 | |
Oh, look, there's a big ray off to our rear right. | 0:12:16 | 0:12:20 | |
-You're kidding! -No, it's beautiful. | 0:12:20 | 0:12:22 | |
Wow! | 0:12:22 | 0:12:23 | |
'But we're not here to chase wildlife, | 0:12:25 | 0:12:29 | |
'because Rabbit is taking me down | 0:12:29 | 0:12:32 | |
'to a shipwreck on an artificial reef - | 0:12:32 | 0:12:34 | |
'a sort of sunken playground | 0:12:34 | 0:12:36 | |
'where he can really put the Aviator through its paces.' | 0:12:36 | 0:12:40 | |
And there we go. | 0:12:42 | 0:12:43 | |
This is magnificent! | 0:13:01 | 0:13:03 | |
'Impressive, but it's still not obvious what this submarine | 0:13:17 | 0:13:21 | |
'has to do with a vulture.' | 0:13:21 | 0:13:23 | |
So, what we are is an upside down vulture under the sea. | 0:13:24 | 0:13:27 | |
And the reason we're like a vulture is we have quite a large body | 0:13:27 | 0:13:30 | |
in proportion to which, quite small, stubby wings. | 0:13:30 | 0:13:33 | |
Yeah. They're short which keeps us manoeuvrable and allows us to go | 0:13:33 | 0:13:36 | |
into tight places, manoeuvre around wrecks | 0:13:36 | 0:13:39 | |
and not bump into anything. | 0:13:39 | 0:13:41 | |
In the same way that a vulture needs to have short wings | 0:13:41 | 0:13:45 | |
so it can be manoeuvrable and turn and stay inside those thermals. | 0:13:45 | 0:13:48 | |
You couldn't do this with long wings on your flying submarine. | 0:13:48 | 0:13:51 | |
That's right. That really is what allows us to have | 0:13:51 | 0:13:55 | |
the manoeuvrability that we do | 0:13:55 | 0:13:56 | |
and be able to exploit the wings to their fullest capability. | 0:13:56 | 0:13:59 | |
We've swapped the lift of a thermal for the buoyancy of water. | 0:14:01 | 0:14:07 | |
It's a mirror image of what happens in the air. | 0:14:07 | 0:14:11 | |
Like the vulture, the Aviator needs quite a lot of energy to get | 0:14:11 | 0:14:15 | |
it away from the surface. | 0:14:15 | 0:14:17 | |
But once it's down there, that vulture technology | 0:14:17 | 0:14:21 | |
enables it to simply glide. | 0:14:21 | 0:14:23 | |
And now a big old climb starts. | 0:14:27 | 0:14:29 | |
Steep ride back. | 0:14:31 | 0:14:33 | |
Oh! That feels pretty harsh. | 0:14:33 | 0:14:37 | |
100 feet. | 0:14:37 | 0:14:40 | |
Oh, yeah. | 0:14:40 | 0:14:41 | |
80 feet. | 0:14:42 | 0:14:44 | |
That's a pretty a extreme feeling | 0:14:44 | 0:14:46 | |
when you see the top, the surface of the sea getting closer | 0:14:46 | 0:14:49 | |
-and closer. -50 feet. -It's like driving into a wall. -20 feet. | 0:14:49 | 0:14:54 | |
I'm prepared to broach. | 0:14:54 | 0:14:57 | |
And there is the surface! That's... Ah! | 0:14:58 | 0:15:02 | |
It feels pretty good. | 0:15:02 | 0:15:03 | |
A submarine based on the way a vulture flies. | 0:15:08 | 0:15:12 | |
Not the most obvious of links, I'll grant you, | 0:15:12 | 0:15:15 | |
but inspirations from the natural world are often unexpected. | 0:15:15 | 0:15:20 | |
Sometimes it's just like a light bulb going on. | 0:15:20 | 0:15:23 | |
Because evolution has given us all of this for inspiration. | 0:15:27 | 0:15:32 | |
10,000 species of bird, | 0:15:36 | 0:15:40 | |
close to 30,000 species of fish, | 0:15:40 | 0:15:44 | |
8,000 species of reptile... | 0:15:44 | 0:15:47 | |
..over a million species of insect... | 0:15:48 | 0:15:51 | |
..and at least 4,500 species of mammal. | 0:15:53 | 0:15:57 | |
Bodies of all shapes and sizes. | 0:15:57 | 0:16:00 | |
Some of these bodies are truly remarkable, | 0:16:03 | 0:16:06 | |
not just for how they look, but for what they can do. | 0:16:06 | 0:16:09 | |
Bodies that could help us humans accomplish things that previously | 0:16:09 | 0:16:13 | |
were just plain impossible. | 0:16:13 | 0:16:16 | |
With the aid of technology, we're now able to propel | 0:16:21 | 0:16:25 | |
our bodies through the air with incredible speed and agility. | 0:16:25 | 0:16:29 | |
But we're still limited by one critical problem - gravity. | 0:16:29 | 0:16:34 | |
Because as pilots throw their planes through ever more violent twists | 0:16:34 | 0:16:39 | |
and turns, it's as if the force of gravity becomes magnified. | 0:16:39 | 0:16:44 | |
Magnified to such an extent that it pulls all the blood | 0:16:47 | 0:16:51 | |
away from their head and they lose consciousness. | 0:16:51 | 0:16:54 | |
And that's not good. | 0:16:54 | 0:16:57 | |
Jet fighters have, of course, continued to advance | 0:17:00 | 0:17:04 | |
and become capable of ever more extreme manoeuvres. | 0:17:04 | 0:17:07 | |
Apart from one part of them - | 0:17:07 | 0:17:09 | |
the pilot, the human element, because the human body, well, | 0:17:09 | 0:17:13 | |
that's stayed pretty much the same. | 0:17:13 | 0:17:15 | |
And who'd have thought that when scientists turned to nature | 0:17:15 | 0:17:18 | |
for inspiration, the one creature that could help us withstand | 0:17:18 | 0:17:21 | |
this high-tech, high speed, dynamic, dangerous environment | 0:17:21 | 0:17:24 | |
would be...the giraffe. | 0:17:24 | 0:17:26 | |
The giraffe has to be one of the most recognisable animals on Earth. | 0:17:35 | 0:17:39 | |
There's no mistaking that distinctive long neck. | 0:17:41 | 0:17:44 | |
But giraffes hold a secret that might just be the key | 0:17:54 | 0:17:58 | |
to the pilot's life-or-death problem. | 0:17:58 | 0:18:01 | |
And it's a secret that's hidden in that long neck. | 0:18:01 | 0:18:06 | |
Because, by rights, when the giraffe lowers its head down to take | 0:18:08 | 0:18:13 | |
a drink, the consequences should be catastrophic. | 0:18:13 | 0:18:18 | |
There is a critical issue here - pressure. | 0:18:20 | 0:18:23 | |
As I shall now demonstrate with this giraffe. | 0:18:23 | 0:18:26 | |
Don't worry, it's not a real one, it's actually a model built | 0:18:26 | 0:18:29 | |
to roughly the scale of a small giraffe. | 0:18:29 | 0:18:31 | |
The important thing is, this represents the heart. | 0:18:31 | 0:18:33 | |
There is actually a pump in there | 0:18:33 | 0:18:35 | |
that is going to pump this, representing the blood, | 0:18:35 | 0:18:37 | |
along these arteries all the way up to the giraffe's head there. | 0:18:37 | 0:18:42 | |
In other words, the same way blood works in the human body. | 0:18:42 | 0:18:46 | |
But the giraffe's head is so high, | 0:18:46 | 0:18:49 | |
it takes far more pressure to get it up there. | 0:18:49 | 0:18:53 | |
That was a human's blood pressure. Straight past that. | 0:18:53 | 0:18:56 | |
In fact, the giraffe has roughly twice our blood pressure. | 0:18:56 | 0:18:59 | |
It's the highest blood pressure of any living thing. | 0:18:59 | 0:19:01 | |
But that high blood pressure is only down by the heart, | 0:19:01 | 0:19:05 | |
where the pump is working furiously. | 0:19:05 | 0:19:08 | |
Up at the head, the pressure is much the same as ours. | 0:19:08 | 0:19:13 | |
And that is how it stays. | 0:19:13 | 0:19:16 | |
Until it decides to lower its head to have a drink, | 0:19:16 | 0:19:19 | |
then everything changes. This is the right place to do this | 0:19:19 | 0:19:22 | |
because giraffes actually do come here to drink. | 0:19:22 | 0:19:25 | |
So, let's give it a go. | 0:19:25 | 0:19:26 | |
As I turn the handle, | 0:19:27 | 0:19:29 | |
all that blood starts going down towards the ground - | 0:19:29 | 0:19:33 | |
just like with the jet pilots. | 0:19:33 | 0:19:36 | |
Straightaway, watching my metre on the blood pressure, | 0:19:36 | 0:19:39 | |
it's rising back up again. | 0:19:39 | 0:19:41 | |
Quite quickly. And now it is rising more because now the head | 0:19:41 | 0:19:44 | |
is getting lower than the heart, | 0:19:44 | 0:19:46 | |
and suddenly, everything has changed. | 0:19:46 | 0:19:48 | |
It's not pumping all the way up there any more, gravity is helping | 0:19:48 | 0:19:51 | |
and it's flooding down to the head. | 0:19:51 | 0:19:53 | |
That blood pressure is going way past | 0:19:53 | 0:19:55 | |
what it should be, and now it's into the danger zone for our giraffe. | 0:19:55 | 0:19:59 | |
And things are looking bad. Very bad. | 0:19:59 | 0:20:03 | |
Obviously, its head doesn't really fly off. | 0:20:07 | 0:20:11 | |
In reality, as the blood pressure rises, the head comes down | 0:20:11 | 0:20:14 | |
and gravity steps in, a giraffe's head would... | 0:20:14 | 0:20:17 | |
Well, it would explode. | 0:20:17 | 0:20:19 | |
But they don't explode every time they come to drink, otherwise | 0:20:19 | 0:20:22 | |
this place who be littered with bits of them. | 0:20:22 | 0:20:24 | |
So, what's happening? | 0:20:24 | 0:20:25 | |
Well, there's only one way to find out - | 0:20:31 | 0:20:35 | |
by attempting to measure the blood pressure, | 0:20:35 | 0:20:37 | |
not of a model giraffe | 0:20:37 | 0:20:40 | |
but of a real one. | 0:20:40 | 0:20:41 | |
This team of vets and surgeons from a Danish university | 0:20:52 | 0:20:56 | |
are already doing just that. | 0:20:56 | 0:20:58 | |
And they hope that what they find out might just help | 0:21:06 | 0:21:10 | |
the millions of us who suffer from high blood pressure. | 0:21:10 | 0:21:13 | |
First, they open up the neck. | 0:21:14 | 0:21:17 | |
Inside, is part of the giraffe's secret. | 0:21:19 | 0:21:24 | |
Its arteries actually contract to cope. | 0:21:24 | 0:21:26 | |
And valves in the neck stop the blood being dragged down by gravity. | 0:21:26 | 0:21:31 | |
To assess just how effective this system is, the Danish team | 0:21:35 | 0:21:40 | |
are aiming to measure the giraffe's blood flow just the same way | 0:21:40 | 0:21:43 | |
I did on my model - | 0:21:43 | 0:21:46 | |
by putting pressure sensors at both the head and the heart. | 0:21:46 | 0:21:50 | |
Safely recovered from the operation, the giraffe is released... | 0:21:58 | 0:22:03 | |
..undamaged, but now Wi-Fi enabled. | 0:22:06 | 0:22:09 | |
This is the first time a giraffe has ever had its blood pressure | 0:22:12 | 0:22:16 | |
monitored in this way. | 0:22:16 | 0:22:18 | |
But what will happen to the readings | 0:22:19 | 0:22:21 | |
when the giraffe bends down to drink? | 0:22:21 | 0:22:24 | |
As soon as the head lowers, | 0:22:29 | 0:22:31 | |
the giraffe's arteries constrict automatically. | 0:22:31 | 0:22:34 | |
And though the pressure continues to rise, the giraffe's blood | 0:22:40 | 0:22:44 | |
doesn't suddenly rush to the head but stays where it's needed... | 0:22:44 | 0:22:48 | |
..leaving the patient completely unharmed. | 0:22:50 | 0:22:53 | |
Which takes us back to jets. | 0:22:53 | 0:22:56 | |
Now, don't get me wrong, I'm not suggesting for one moment | 0:23:01 | 0:23:04 | |
that giraffes would make good fighter pilots. | 0:23:04 | 0:23:07 | |
But they are, as we have seen, very good at controlling | 0:23:07 | 0:23:11 | |
blood pressure and distribution of blood around the body, | 0:23:11 | 0:23:14 | |
and that's very important in here. | 0:23:14 | 0:23:17 | |
Because this capsule is designed to recreate the forces | 0:23:19 | 0:23:22 | |
that a fighter pilot experiences whilst flying. | 0:23:22 | 0:23:25 | |
And those forces are immense. | 0:23:25 | 0:23:29 | |
The faster they accelerate, brake or turn, | 0:23:31 | 0:23:34 | |
the greater the effect of G-force on the body. | 0:23:34 | 0:23:37 | |
At 2G, you feel you weigh twice as much as normal, | 0:23:38 | 0:23:41 | |
and breathing is twice as hard. | 0:23:41 | 0:23:44 | |
At 3G, the effects are tripled, | 0:23:46 | 0:23:48 | |
and blood starts to struggle to get to your brain. | 0:23:48 | 0:23:51 | |
Go further, | 0:23:52 | 0:23:53 | |
and you lose your peripheral vision, | 0:23:53 | 0:23:56 | |
then all sense of colour. | 0:23:56 | 0:23:59 | |
Finally, around 4 or 5G, your vision disappears entirely | 0:23:59 | 0:24:04 | |
and you lose consciousness. | 0:24:04 | 0:24:05 | |
Today, in here, using technology that mirrors very closely | 0:24:08 | 0:24:11 | |
what happens in a giraffe's neck, we're hoping to see 9G. | 0:24:11 | 0:24:16 | |
Five seconds of that is enough to go through all of those stages | 0:24:16 | 0:24:19 | |
to unconsciousness. | 0:24:19 | 0:24:21 | |
And I'm not doing it. | 0:24:21 | 0:24:24 | |
I'm getting out. | 0:24:24 | 0:24:25 | |
The German Air Force, who run this place, | 0:24:27 | 0:24:30 | |
require three months of rigorous medical testing | 0:24:30 | 0:24:32 | |
before they'll approve a pilot. | 0:24:32 | 0:24:36 | |
And this man, Ralph, is the lucky winner. | 0:24:38 | 0:24:42 | |
Ralph has been chosen as the guinea pig for a completely | 0:24:44 | 0:24:47 | |
new form of flying suit. | 0:24:47 | 0:24:50 | |
It's called the G-raff. | 0:24:50 | 0:24:53 | |
A series of valves and chambers stop the blood | 0:24:53 | 0:24:57 | |
pooling by compressing the body, | 0:24:57 | 0:24:59 | |
just like the constrictions in the giraffe's neck. | 0:24:59 | 0:25:03 | |
And the result... | 0:25:05 | 0:25:07 | |
Well, it looks pretty damn impressive. | 0:25:07 | 0:25:10 | |
What? | 0:25:11 | 0:25:13 | |
Oh, this? Yeah, you noticed. | 0:25:13 | 0:25:15 | |
Andreas, I'll be honest, no offence, this is your invention, I know, | 0:25:15 | 0:25:18 | |
I feel a bit silly right now. | 0:25:18 | 0:25:20 | |
But this is the first incarnation of your G-raff suit. | 0:25:20 | 0:25:23 | |
What have I and a giraffe got in common right now? | 0:25:23 | 0:25:26 | |
It starts with some muscles here. | 0:25:26 | 0:25:29 | |
There are fluid muscles to contract the fabric if they are blowed up. | 0:25:29 | 0:25:35 | |
Then we are creating a tension to compress the body. | 0:25:35 | 0:25:40 | |
I've actually got a little thing here, I can inflate myself. | 0:25:40 | 0:25:43 | |
Oh! I can now feel that squeezing down here. | 0:25:43 | 0:25:46 | |
There are various pockets where air gathers, | 0:25:46 | 0:25:50 | |
that then tensions the material, yeah? | 0:25:50 | 0:25:53 | |
Absolutely. And it starts on the feet | 0:25:53 | 0:25:55 | |
and then we bring down... up the blood | 0:25:55 | 0:25:59 | |
back to the right place, to your heart, and especially to your brain. | 0:25:59 | 0:26:03 | |
So, this would be squeezing me like a giant tube of toothpaste. | 0:26:03 | 0:26:07 | |
That's true. | 0:26:07 | 0:26:08 | |
It's like a...I would say, | 0:26:08 | 0:26:10 | |
it's opposite milking, that's what you're doing. | 0:26:10 | 0:26:13 | |
In Switzerland, to milk, it's more or less the same thing | 0:26:13 | 0:26:15 | |
but the opposite way. | 0:26:15 | 0:26:17 | |
Luckily for our pilot, the new version of the G-raff suit | 0:26:17 | 0:26:22 | |
all those tubes and chambers are hidden discreetly away. | 0:26:22 | 0:26:26 | |
They are now so small that a tiny amount of air should be enough | 0:26:26 | 0:26:31 | |
to activate them and stop the blood draining from the pilot's head. | 0:26:31 | 0:26:36 | |
But will giraffe technology be enough | 0:26:38 | 0:26:42 | |
to stop Ralph losing consciousness? | 0:26:42 | 0:26:45 | |
This is the world's largest and most powerful centrifuge. | 0:26:56 | 0:27:00 | |
That arm is capable of spinning that capsule around this cavernous room | 0:27:00 | 0:27:05 | |
37 times in a minute. | 0:27:05 | 0:27:07 | |
Which works out roughly that the capsule itself is travelling | 0:27:07 | 0:27:11 | |
at the best part of 90 miles an hour that way. | 0:27:11 | 0:27:14 | |
But it's not that speed that's important. | 0:27:14 | 0:27:17 | |
It's what that speed generates in this direction, G-force. | 0:27:17 | 0:27:21 | |
And that G-force will pull the pilot's blood downwards, | 0:27:23 | 0:27:27 | |
just as gravity did to the giraffe. | 0:27:27 | 0:27:30 | |
What I've been told is, Ralph, | 0:27:36 | 0:27:38 | |
who's in the pod, is going to fly himself with a joystick. | 0:27:38 | 0:27:41 | |
And he'll subject himself to 9G. | 0:27:41 | 0:27:44 | |
Ralph has monitors taped all over him. | 0:27:46 | 0:27:50 | |
So, just like with the South African giraffe, | 0:27:50 | 0:27:53 | |
they can monitor the blood pressure at both his heart and his head. | 0:27:53 | 0:27:57 | |
-Are you ready? -'Yes, I am.' | 0:27:58 | 0:28:01 | |
It will be fine. | 0:28:03 | 0:28:05 | |
I'm glad he's confident, | 0:28:05 | 0:28:07 | |
because he's launching himself into unknown territory. | 0:28:07 | 0:28:10 | |
Three, two, one... Go. | 0:28:10 | 0:28:13 | |
Right now, as he slowly increases and tightens the turn, | 0:28:19 | 0:28:22 | |
the blood is going to have a harder and harder time | 0:28:22 | 0:28:25 | |
getting up to Ralph's head. | 0:28:25 | 0:28:28 | |
And from here on in, it's only going to get worse. | 0:28:29 | 0:28:33 | |
Now I'm going up. 4G. | 0:28:33 | 0:28:36 | |
A little bit more. Just to 5G. | 0:28:39 | 0:28:41 | |
Six. | 0:28:42 | 0:28:44 | |
Now we have seven. | 0:28:48 | 0:28:50 | |
8G. | 0:28:52 | 0:28:53 | |
Now go up to 9G. | 0:28:57 | 0:28:59 | |
9G. | 0:29:01 | 0:29:03 | |
He just did 9, whilst chatting. | 0:29:07 | 0:29:11 | |
But the test isn't over. | 0:29:13 | 0:29:14 | |
With Ralph still at 9G, Andreas takes the controls. | 0:29:14 | 0:29:21 | |
And decides to push it just that little bit further. | 0:29:21 | 0:29:25 | |
It feels fine. | 0:29:25 | 0:29:26 | |
Not only is Ralph not struggling, he appears to be enjoying it. | 0:29:34 | 0:29:39 | |
Wow! Whoa! Nice! | 0:29:41 | 0:29:44 | |
So much so, that he has a little surprise for us. | 0:29:44 | 0:29:49 | |
SPEECH MUFFLED BY NOISE | 0:29:49 | 0:29:51 | |
His face might be ending up stretched over his knees | 0:29:56 | 0:30:00 | |
but he's managing to do a Rubik's cube at 9G. | 0:30:00 | 0:30:03 | |
I can't do those at 1G. | 0:30:03 | 0:30:06 | |
Thank you. It's finished. | 0:30:08 | 0:30:11 | |
THEY LAUGH | 0:30:11 | 0:30:13 | |
I mean, giraffes don't do this. | 0:30:16 | 0:30:18 | |
But it is linked directly to how giraffes' necks work. | 0:30:18 | 0:30:21 | |
HE SPEAKS GERMAN | 0:30:21 | 0:30:24 | |
Who knew? Who'd have thought? | 0:30:24 | 0:30:27 | |
If the G-raff suit passes the rest of its testing process | 0:30:30 | 0:30:34 | |
so convincingly then, thanks to the giraffe, | 0:30:34 | 0:30:36 | |
G-force might be one less thing for fighter pilots to worry about. | 0:30:36 | 0:30:41 | |
It goes without saying, | 0:30:52 | 0:30:54 | |
for a species to survive it needs to be able to protect itself. | 0:30:54 | 0:30:58 | |
Turtles do it by retracting into a shell. | 0:30:58 | 0:31:01 | |
Bighorn sheep do it by having specially reinforced skulls. | 0:31:01 | 0:31:05 | |
Because when they fight, it's more like a car crash. | 0:31:07 | 0:31:10 | |
Which is appropriate | 0:31:14 | 0:31:16 | |
because the only time a human being is likely to encounter | 0:31:16 | 0:31:19 | |
that sort of impact is if they are unlucky enough to be in a crash. | 0:31:19 | 0:31:22 | |
Anyone who rides a bike or races a car, | 0:31:22 | 0:31:25 | |
their best hope of protection is a helmet. | 0:31:25 | 0:31:28 | |
I should know, I owe my life to that one right there. | 0:31:28 | 0:31:32 | |
This is a state-of-the-art crash helmet, | 0:31:42 | 0:31:45 | |
the sort worn by Formula One drivers | 0:31:45 | 0:31:48 | |
Michael Schumacher and Fernando Alonso. | 0:31:48 | 0:31:51 | |
Like all helmets, it's made of two layers, | 0:31:51 | 0:31:55 | |
a flexible lightweight shell, and a soft inner foam. | 0:31:55 | 0:31:59 | |
To insure it meets safety regulations, | 0:32:02 | 0:32:05 | |
each helmet is subjected to a drop test. | 0:32:05 | 0:32:08 | |
And not just any old drop. | 0:32:10 | 0:32:12 | |
A drop from the top of the highest helmet drop tower in Britain - | 0:32:12 | 0:32:17 | |
50 feet straight down onto a solid steel pipe. | 0:32:17 | 0:32:21 | |
It's like hitting a lamppost at 60 miles per hour. | 0:32:30 | 0:32:35 | |
And amazingly, the helmet survives. | 0:32:35 | 0:32:38 | |
But is that good enough? | 0:32:38 | 0:32:41 | |
Somewhere in the natural world, | 0:32:41 | 0:32:43 | |
there might just be a better solution. | 0:32:43 | 0:32:46 | |
TAPPING NOISE | 0:33:02 | 0:33:04 | |
And there it is. | 0:33:04 | 0:33:06 | |
It is a great spotted woodpecker. | 0:33:06 | 0:33:11 | |
And it's the biggest head banger on the planet. | 0:33:11 | 0:33:15 | |
It drills a hole up to four inches deep through solid wood | 0:33:22 | 0:33:27 | |
to get at the larvae of wood-boring beetles. | 0:33:27 | 0:33:30 | |
Which puts its head, and its brain, through an astonishing pounding. | 0:33:31 | 0:33:36 | |
The thing is, and this is an incredible figure, | 0:33:42 | 0:33:46 | |
every time the woodpecker's beak strikes the tree, | 0:33:46 | 0:33:50 | |
its head is subject to 1,200G. | 0:33:50 | 0:33:54 | |
Which is enormous. | 0:33:54 | 0:33:56 | |
In a crash, a human could only survive a fraction of that, | 0:33:56 | 0:34:00 | |
even with a helmet. | 0:34:00 | 0:34:02 | |
So how come it's able to do this without its brain turning to mush? | 0:34:04 | 0:34:09 | |
Unlike the crash helmet that has two layers to protect against shock, | 0:34:17 | 0:34:20 | |
the woodpecker has four. | 0:34:20 | 0:34:23 | |
The first is this hard | 0:34:23 | 0:34:25 | |
but flexible beak that absorbs some of the initial impact. | 0:34:25 | 0:34:29 | |
The second is a springy layer that starts at the base of the tongue | 0:34:29 | 0:34:34 | |
and extends right around the skull. | 0:34:34 | 0:34:36 | |
Then the skull itself provides a second rigid layer. | 0:34:36 | 0:34:40 | |
Finally, this filling of spongy bone between the skull and brain. | 0:34:40 | 0:34:45 | |
These four elements combined allow the woodpecker | 0:34:45 | 0:34:48 | |
to withstand impacts that would more than likely leave us dead. | 0:34:48 | 0:34:52 | |
So how can we adapt the woodpecker's astonishing ability? | 0:34:55 | 0:34:59 | |
Engineer John Powell is attempting to recreate those | 0:35:04 | 0:35:07 | |
shock absorbing elements into an innovative new man-made system. | 0:35:07 | 0:35:12 | |
John, I'll be honest, it looks nothing like a woodpecker. | 0:35:12 | 0:35:15 | |
It doesn't look like a woodpecker but we have replicated the entire | 0:35:15 | 0:35:18 | |
woodpecker brain support system in our little cylinder here. | 0:35:18 | 0:35:22 | |
OK. Essentially, we've got this outer carbon fibre layer. | 0:35:22 | 0:35:26 | |
That's the beak that'll flex when it's impacted. | 0:35:26 | 0:35:29 | |
Hopefully not transferring loads through | 0:35:29 | 0:35:32 | |
this isolating layer of cotton wool. | 0:35:32 | 0:35:34 | |
That hopefully is keeping everything away from being transferred | 0:35:34 | 0:35:38 | |
-to this inner layer. -This is our woodpecker skull. | 0:35:38 | 0:35:41 | |
This is fibreglass, so yet another fibrous material like bone, | 0:35:41 | 0:35:44 | |
but it's more rigid so any impacts that come into the side | 0:35:44 | 0:35:47 | |
are transferred to the centre like the woodpecker brain case, | 0:35:47 | 0:35:50 | |
where they have the outer shell | 0:35:50 | 0:35:52 | |
that doesn't allow anything to transfer to the inside. | 0:35:52 | 0:35:56 | |
So if anything reaches that, this doesn't flex. | 0:35:56 | 0:35:58 | |
-This is a bit more rigid. -Right, that's the barrier. | 0:35:58 | 0:36:00 | |
What's after that? | 0:36:00 | 0:36:02 | |
We use the beads, replicating that inner bone that the woodpecker has. | 0:36:02 | 0:36:06 | |
-That sort of spongy bone stuff? -Yes. -Where did these come from? | 0:36:06 | 0:36:09 | |
These actually come from airport pillows. | 0:36:09 | 0:36:11 | |
-You know those U-shaped pillows you put around your neck? -Yeah. | 0:36:11 | 0:36:14 | |
That's what in them. | 0:36:14 | 0:36:15 | |
So now all we need to do is organise some sort of drop test. | 0:36:15 | 0:36:21 | |
To find out just how good this container is, | 0:36:38 | 0:36:41 | |
we are going to drop it with something delicate inside it. | 0:36:41 | 0:36:45 | |
Something like this. | 0:36:45 | 0:36:47 | |
Not this. | 0:36:51 | 0:36:53 | |
This. | 0:36:55 | 0:36:57 | |
A bulb. Now that IS delicate. | 0:36:57 | 0:37:01 | |
We've got glass, thin glass, and the filament inside. | 0:37:01 | 0:37:05 | |
I can't get these things home from the store without breaking them. | 0:37:05 | 0:37:08 | |
I wouldn't expect this to survive a fall from a kitchen work surface | 0:37:08 | 0:37:12 | |
but, today, we are going to drop it from space. | 0:37:12 | 0:37:16 | |
Here is the precious cargo. | 0:37:34 | 0:37:37 | |
John, I mean, this... It's not a specially prepared bulb or anything. | 0:37:37 | 0:37:41 | |
No, this is a regular light bulb we bought from the hardware store. | 0:37:41 | 0:37:46 | |
-It's just off a shelf? -Yes. | 0:37:46 | 0:37:47 | |
I've delivered it to you safely, we've got that on record. | 0:37:47 | 0:37:50 | |
We are just going to wrap it in a little piece of excelsior here. | 0:37:50 | 0:37:53 | |
Right. | 0:37:53 | 0:37:55 | |
Then it goes in its little home there. | 0:37:55 | 0:37:57 | |
John, all this other stuff that you've put in with it, | 0:37:57 | 0:38:00 | |
the GPS stuff and this unit, | 0:38:00 | 0:38:01 | |
isn't that going to be the equivalent | 0:38:01 | 0:38:04 | |
of putting a light bulb in a tumble dryer full of bricks? | 0:38:04 | 0:38:08 | |
-Yes. -Right. -Which makes it even more challenging. -Yes. | 0:38:08 | 0:38:11 | |
The real trick is to get everything not to move. | 0:38:11 | 0:38:15 | |
Everything takes a lot of shock if it can't move. | 0:38:15 | 0:38:18 | |
Then it can't come over towards the light bulb. | 0:38:18 | 0:38:20 | |
How confident are you at this stage? | 0:38:20 | 0:38:24 | |
-I'm completely confident that the bulb is going to survive. -OK. | 0:38:24 | 0:38:28 | |
The extra added bit, the glory that we're shooting for, | 0:38:28 | 0:38:32 | |
is will the filament in the bulb. I believe it will. | 0:38:32 | 0:38:36 | |
The filament is the most delicate part. It's just a small thin wire. | 0:38:36 | 0:38:40 | |
They can break in your shopping bag! | 0:38:40 | 0:38:41 | |
-And often do. -Oh, yeah! Hopeful, that's a good word for this mission. | 0:38:41 | 0:38:46 | |
Ambitious and hopeful. | 0:38:46 | 0:38:48 | |
John isn't just in charge of our canister, | 0:38:48 | 0:38:51 | |
he runs this whole space mission. | 0:38:51 | 0:38:54 | |
And he wants to see if woodpecker technology can help him | 0:38:54 | 0:38:58 | |
protect the vital components he attaches to his command modules. | 0:38:58 | 0:39:02 | |
But we can't blame him for this whole crazy light bulb thing. | 0:39:02 | 0:39:07 | |
That was our idea. | 0:39:07 | 0:39:08 | |
OK, so here is how it's going to work. | 0:39:10 | 0:39:12 | |
Still can't quite believe I'm saying this. | 0:39:12 | 0:39:14 | |
Our canister containing the light bulb will be suspended underneath the module. | 0:39:14 | 0:39:18 | |
That in turn will be suspended underneath that weather balloon, | 0:39:18 | 0:39:21 | |
which is filled with helium, which is lighter than air | 0:39:21 | 0:39:24 | |
so that will take the whole lot up. | 0:39:24 | 0:39:25 | |
And up. And up. | 0:39:25 | 0:39:27 | |
Right beyond the edge of the Earth's atmosphere and, well, into space. | 0:39:27 | 0:39:31 | |
I know it sounds silly when you say it, but that's where it's going. | 0:39:31 | 0:39:34 | |
When it's there, down here on the ground in mission control, | 0:39:34 | 0:39:38 | |
which is that van over there, | 0:39:38 | 0:39:39 | |
they will press a button that will release our module | 0:39:39 | 0:39:42 | |
and it will fall all the way back down to Earth with our light bulb. | 0:39:42 | 0:39:46 | |
And then, well, we'll just see what happens. | 0:39:46 | 0:39:48 | |
It's equipped with GPS so they can find it. We'll have a look. | 0:39:48 | 0:39:52 | |
-We're going into space. -HE GIGGLES | 0:39:52 | 0:39:54 | |
'Commencing launch procedure. | 0:39:54 | 0:39:57 | |
'Ten...nine... | 0:40:00 | 0:40:03 | |
'..eight...seven... | 0:40:03 | 0:40:05 | |
'..six...five... | 0:40:05 | 0:40:08 | |
'..four...three... | 0:40:08 | 0:40:11 | |
'..two...one.' | 0:40:11 | 0:40:13 | |
It's up. It's going that way. | 0:40:21 | 0:40:24 | |
It's climbing. | 0:40:24 | 0:40:26 | |
Bye-bye, light bulb. | 0:40:37 | 0:40:39 | |
Good luck on the way back down. | 0:40:40 | 0:40:42 | |
The balloon carrying our woodpecker canister | 0:40:50 | 0:40:53 | |
rises astonishingly quickly - | 0:40:53 | 0:40:55 | |
around 1,000 feet a minute - | 0:40:55 | 0:40:58 | |
and it's already out of sight from the ground. | 0:40:58 | 0:41:01 | |
Time to get myself to mission control. | 0:41:01 | 0:41:05 | |
Look at that shot. There it is. | 0:41:05 | 0:41:07 | |
Is that curvature of the Earth I'm seeing or is that an optical effect? | 0:41:07 | 0:41:11 | |
-That is curvature of the Earth. -That IS curvature of the Earth? There it is there. -Yes. | 0:41:11 | 0:41:15 | |
So this light bulb that we bought off the shelf in a store... | 0:41:15 | 0:41:18 | |
It was just there next to all the other light bulbs. | 0:41:18 | 0:41:20 | |
That one was chosen. | 0:41:20 | 0:41:22 | |
That one is now experiencing space. | 0:41:22 | 0:41:24 | |
-It's the ultimate light bulb adventure. -It is. | 0:41:24 | 0:41:28 | |
CLATTERING Oh, the awning... | 0:41:28 | 0:41:30 | |
Er, I think our E-Z UP just flew away. | 0:41:30 | 0:41:33 | |
Down, down, upside down... | 0:41:33 | 0:41:34 | |
Is anybody going to say, "Houston, we have a problem"? | 0:41:34 | 0:41:37 | |
-Everybody OK out there? -I'm not sure my nerves can stand it. | 0:41:37 | 0:41:40 | |
This is the most tense thing I've ever been involved in. | 0:41:40 | 0:41:42 | |
I'm in the middle of a space mission here and we've got problems! | 0:41:42 | 0:41:46 | |
You all know where that goes! | 0:41:46 | 0:41:47 | |
-Everybody OK out here? -Yeah, we're fine. | 0:41:47 | 0:41:50 | |
Just 2,000 feet to go till our designated drop point | 0:41:50 | 0:41:54 | |
and then our canister containing our precious light bulb cargo | 0:41:54 | 0:41:59 | |
begins its Mach 1 journey back towards Earth... | 0:41:59 | 0:42:02 | |
and a substantial crash landing, which, hopefully, it will survive, | 0:42:02 | 0:42:06 | |
thanks to a technology derived from that of a woodpecker's head. | 0:42:06 | 0:42:10 | |
If you've just joined us, that's what's happening. | 0:42:10 | 0:42:13 | |
If this works, we'll see the cylinder break away and begin its... | 0:42:13 | 0:42:19 | |
You just say, "Go," and I'll try it. | 0:42:19 | 0:42:21 | |
There it is. Go. | 0:42:21 | 0:42:23 | |
-Yes! -Yes! -There it goes! -It's gone! | 0:42:25 | 0:42:28 | |
Within seconds, the canister is going fast enough | 0:42:29 | 0:42:32 | |
to break the sound barrier. | 0:42:32 | 0:42:34 | |
If there WAS any sound in space, that is. | 0:42:34 | 0:42:38 | |
Yet even at 700-odd miles an hour, | 0:42:38 | 0:42:41 | |
the descent is going to take a remarkable 15 minutes - | 0:42:41 | 0:42:45 | |
now THAT is what I call a drop test. | 0:42:45 | 0:42:48 | |
With the canister now out of sight, | 0:42:51 | 0:42:53 | |
the team remotely detonate the weather balloon. | 0:42:53 | 0:42:57 | |
A parachute launches automatically, | 0:42:59 | 0:43:01 | |
floating the transmitters and cameras safely back down to Earth. | 0:43:01 | 0:43:05 | |
The canister isn't so lucky. | 0:43:08 | 0:43:10 | |
As it hits the atmosphere, | 0:43:13 | 0:43:15 | |
the on-board camera is forced back in its housing. | 0:43:15 | 0:43:17 | |
No woodpecker has ever travelled at 700 miles per hour. | 0:43:24 | 0:43:29 | |
No woodpecker has ever plummeted 85,000 feet. | 0:43:30 | 0:43:34 | |
But right now, we're relying on the way a woodpecker | 0:43:36 | 0:43:39 | |
protects its brain to keep that light bulb intact. | 0:43:39 | 0:43:43 | |
CRASH | 0:43:46 | 0:43:49 | |
With the canister down, we head out as quickly as we can to retrieve it. | 0:43:53 | 0:43:57 | |
Unfortunately, those same winds that blew our awning over | 0:43:59 | 0:44:02 | |
have taken the canister way off course. | 0:44:02 | 0:44:05 | |
And when we finally get there, | 0:44:10 | 0:44:11 | |
we find the radio signals seem to make no sense. | 0:44:11 | 0:44:16 | |
As night falls, we're still no closer to finding our canister. | 0:44:18 | 0:44:22 | |
So let me tell you where we are. | 0:44:27 | 0:44:30 | |
The guys are pretty sure that the canister landed in a canyon. | 0:44:30 | 0:44:33 | |
That's good. Less good - | 0:44:33 | 0:44:35 | |
the GPS on board has broken, which is a worry. | 0:44:35 | 0:44:38 | |
It does have a radio beacon - that's great. And they've found a signal. | 0:44:38 | 0:44:42 | |
The problem is, the signal is bouncing around, they think, | 0:44:42 | 0:44:44 | |
off the walls of the canyon. | 0:44:44 | 0:44:46 | |
When I was with them, we went to try and find it, | 0:44:46 | 0:44:48 | |
we were going one way and the next way. | 0:44:48 | 0:44:50 | |
The signal is coming in everywhere. So here's the solution. | 0:44:50 | 0:44:53 | |
They think what we've got to do now | 0:44:53 | 0:44:55 | |
is wait for the battery in the radio beacon to run down a little bit, | 0:44:55 | 0:44:59 | |
so it's a weaker signal - it won't bounce off the walls. | 0:44:59 | 0:45:02 | |
They'll be able to zone in and find it. | 0:45:02 | 0:45:04 | |
But that could take five or six days. | 0:45:04 | 0:45:07 | |
I haven't got time. We've got to move on. | 0:45:07 | 0:45:09 | |
So they're going to look for it and if, WHEN they find it, | 0:45:09 | 0:45:12 | |
they'll mail it on to me, wherever we've ended up. | 0:45:12 | 0:45:17 | |
It's not all over yet. | 0:45:17 | 0:45:18 | |
Now, you might be thinking, | 0:45:23 | 0:45:25 | |
"It's all very well you talking about submarines and jet fighters and space, | 0:45:25 | 0:45:29 | |
"but what has any of that got to do with me?" | 0:45:29 | 0:45:32 | |
Well, more than you might imagine | 0:45:32 | 0:45:34 | |
because quite often these exotic ideas | 0:45:34 | 0:45:36 | |
end up having applications much, much closer to home. | 0:45:36 | 0:45:40 | |
Can we be frank just for a minute? Because this is important. | 0:45:43 | 0:45:47 | |
We need to address an embarrassing social problem. | 0:45:47 | 0:45:50 | |
Has this ever happened to you? | 0:45:50 | 0:45:53 | |
An amazing 19% of us admit to having, at one time or another, | 0:45:56 | 0:46:01 | |
dropped our mobile phone down the loo. | 0:46:01 | 0:46:04 | |
Actually, it's worse than that, because only 40% of us overall | 0:46:04 | 0:46:07 | |
admit to taking our phone in with us in the first place. | 0:46:07 | 0:46:11 | |
So if 19% drop it down... | 0:46:11 | 0:46:13 | |
That's half of everybody who takes their phone into the loo | 0:46:13 | 0:46:16 | |
drops it down there. | 0:46:16 | 0:46:17 | |
I'm afraid to say it seems to be predominantly women. | 0:46:17 | 0:46:20 | |
Must be the whole, you know, sitting-down thing. Whatever! | 0:46:20 | 0:46:24 | |
Anyway, ultimately it leads... well, to this. | 0:46:24 | 0:46:27 | |
Yeah. Telecommunications and toilets. | 0:46:39 | 0:46:43 | |
Not something with which you'd imagine the genius of nature | 0:46:43 | 0:46:46 | |
could really help. | 0:46:46 | 0:46:47 | |
But it can. | 0:46:47 | 0:46:49 | |
And the answer can be found | 0:46:53 | 0:46:54 | |
deep in the heart of the South American rainforest. | 0:46:54 | 0:46:57 | |
This Morpho butterfly is a master of repelling water. | 0:47:10 | 0:47:15 | |
And with good cause. | 0:47:17 | 0:47:18 | |
If just one of those heavy raindrops was to settle on its wing, | 0:47:21 | 0:47:25 | |
it would become so unbalanced, it would fall out of the sky. | 0:47:25 | 0:47:29 | |
And if just a fraction of a drop was absorbed, | 0:47:30 | 0:47:34 | |
it could damage the wing permanently. | 0:47:34 | 0:47:36 | |
Lucky then, that the water just beads up and runs off... | 0:47:42 | 0:47:45 | |
..allowing the butterfly to find safety and shelter. | 0:47:47 | 0:47:52 | |
Despite the shiny appearance of the wing, | 0:47:55 | 0:47:59 | |
this is not some sort of rubberised coating. | 0:47:59 | 0:48:02 | |
It's something far cleverer than that. | 0:48:02 | 0:48:05 | |
But to find out what, we need to look closer. | 0:48:05 | 0:48:09 | |
A thousand times closer. | 0:48:09 | 0:48:11 | |
Because although the wing looks totally smooth, | 0:48:14 | 0:48:17 | |
it's actually covered in millions of tiny waffle-shaped ridges. | 0:48:17 | 0:48:22 | |
This model represents that distinctive pattern, | 0:48:25 | 0:48:29 | |
and this balloon represents a water droplet. | 0:48:29 | 0:48:32 | |
If it lands on the wing, only the tiniest part of it | 0:48:32 | 0:48:35 | |
would ever come into contact with the actual surface | 0:48:35 | 0:48:38 | |
because it balances on these ridges. | 0:48:38 | 0:48:41 | |
In fact, less than one percent of any raindrop | 0:48:41 | 0:48:45 | |
ever even touches the butterfly's wing. | 0:48:45 | 0:48:49 | |
They call this property "hydrophobia" - | 0:48:49 | 0:48:51 | |
literally "water hating" - | 0:48:51 | 0:48:54 | |
and it's a property so impressive | 0:48:54 | 0:48:57 | |
and so potentially useful, | 0:48:57 | 0:48:59 | |
that it's no surprise we've tried to copy it. | 0:48:59 | 0:49:02 | |
This laboratory in Oxfordshire thinks it's succeeded. | 0:49:09 | 0:49:13 | |
They've worked out a way to spray an artificial hydrophobic coating | 0:49:15 | 0:49:18 | |
onto, well, just about everything. | 0:49:18 | 0:49:22 | |
And if you don't believe me, just watch. | 0:49:23 | 0:49:25 | |
We've put together a machine to explore this hydrophobic quality | 0:49:27 | 0:49:31 | |
and all it needs to get it started is a couple of drops of water. | 0:49:31 | 0:49:35 | |
We've created this machine | 0:49:37 | 0:49:39 | |
out of things we thought might benefit from being hydrophobic. | 0:49:39 | 0:49:44 | |
A newspaper that never gets soggy. | 0:49:44 | 0:49:47 | |
An egg carton that never gets sticky. | 0:49:47 | 0:49:51 | |
A teapot that never dribbles. | 0:49:55 | 0:49:59 | |
Kitchen utensils, spatulas, spoons and mixing bowls | 0:50:02 | 0:50:06 | |
that never get dirty. | 0:50:06 | 0:50:08 | |
Gloves that stay dry | 0:50:09 | 0:50:11 | |
whether you're gardening or snowballing. | 0:50:11 | 0:50:14 | |
And summer blockbusters that you can read by the pool. | 0:50:16 | 0:50:20 | |
And, finally, the piece de resistance... | 0:50:28 | 0:50:33 | |
..hydrophobic clothes. | 0:50:36 | 0:50:38 | |
So I've had THIS made. | 0:50:41 | 0:50:42 | |
It's a suit, but it's been hydrophobically coated, | 0:50:42 | 0:50:45 | |
which means, technically, I should be able to spill anything on it. | 0:50:45 | 0:50:49 | |
Coffee. | 0:50:51 | 0:50:52 | |
Red wine. | 0:50:52 | 0:50:53 | |
Mustard - English. | 0:50:55 | 0:50:56 | |
Tomato juice. | 0:50:56 | 0:50:58 | |
Mango juice. | 0:50:58 | 0:51:00 | |
Soy sauce. | 0:51:01 | 0:51:03 | |
You see, it all just flies off. Brilliant. | 0:51:03 | 0:51:07 | |
Right, hope there's nothing else. | 0:51:07 | 0:51:10 | |
Because the thing we really want to repel water is our phone. | 0:51:10 | 0:51:14 | |
Back to the lab. | 0:51:14 | 0:51:16 | |
We've put a standard model into an airtight chamber, | 0:51:19 | 0:51:23 | |
where it's subjected to a vacuum. | 0:51:23 | 0:51:25 | |
Next, it's exposed to plasma rays | 0:51:28 | 0:51:31 | |
to prepare every surface for the hydrophobic coating, | 0:51:31 | 0:51:35 | |
and I do mean every surface, both outside and in. | 0:51:35 | 0:51:41 | |
Moving parts, electrical contacts, circuit boards, processors | 0:51:43 | 0:51:47 | |
all get covered by a thin layer of textured plastic, | 0:51:47 | 0:51:51 | |
a thousand times thinner than a human hair. | 0:51:51 | 0:51:54 | |
Which is all very impressive, but does it work? | 0:51:56 | 0:52:00 | |
Let's start again, shall we? | 0:52:02 | 0:52:04 | |
This is my old phone, and it's ruined. | 0:52:04 | 0:52:08 | |
I dropped it in the loo, You saw me do it. | 0:52:08 | 0:52:11 | |
This is my new phone. It's exactly the same, | 0:52:11 | 0:52:14 | |
but it's been treated with a special hydrophobic coating. | 0:52:14 | 0:52:18 | |
Not a waterproof cover, remember. Water will still get in. | 0:52:18 | 0:52:22 | |
It's just it should then run off every component inside. | 0:52:22 | 0:52:26 | |
Should. That's the theory. | 0:52:26 | 0:52:28 | |
So let's do it again. And I really hope this does work because this is getting expensive. | 0:52:28 | 0:52:33 | |
PHONE RINGS | 0:52:40 | 0:52:42 | |
Hello. | 0:52:49 | 0:52:50 | |
Yeah, can you get me some antibacterial wipes? | 0:52:50 | 0:52:53 | |
Yeah. | 0:52:53 | 0:52:54 | |
No, a lot. | 0:52:54 | 0:52:56 | |
Just imagine if any electrical device could be waterproof. | 0:52:59 | 0:53:03 | |
No more water-damaged phones. | 0:53:05 | 0:53:07 | |
No more flood-damaged televisions. | 0:53:07 | 0:53:10 | |
And no more coffee-damaged keyboards. | 0:53:12 | 0:53:15 | |
And all thanks to the South American rainforest... | 0:53:15 | 0:53:18 | |
and one small butterfly. | 0:53:18 | 0:53:20 | |
It goes to show that sometimes, most times, | 0:53:28 | 0:53:31 | |
there's an animal out there somewhere | 0:53:31 | 0:53:33 | |
that can outperform the best we humans have to offer. | 0:53:33 | 0:53:37 | |
It's not surprising, really. | 0:53:37 | 0:53:38 | |
Evolution has been working on it for 3.5 billion years. | 0:53:38 | 0:53:42 | |
But that's OK - it just means there's always more for us | 0:53:42 | 0:53:45 | |
to learn from the natural world. | 0:53:45 | 0:53:47 | |
Like, what DID happen to that light bulb? | 0:53:47 | 0:53:50 | |
If you remember, a woodpecker had inspired us | 0:53:52 | 0:53:55 | |
to drop a light bulb from space. | 0:53:55 | 0:53:57 | |
But it had landed... heaven knows where. | 0:53:58 | 0:54:01 | |
DOORBELL CHIMES | 0:54:04 | 0:54:08 | |
-Hello. -How's it going? -Very well. Do you have a parcel for Hammond? -Yes. | 0:54:08 | 0:54:12 | |
'Well, eventually I get the call saying they've found the canister | 0:54:12 | 0:54:16 | |
'and delivered it to a courier's office near where I'm filming.' | 0:54:16 | 0:54:19 | |
Driver's licence. Does that do? | 0:54:19 | 0:54:21 | |
'I rush straight down there.' | 0:54:21 | 0:54:23 | |
Stickers say, "Fragile, handle with care." It's a bit late! | 0:54:26 | 0:54:29 | |
Right, let's get this open. | 0:54:29 | 0:54:31 | |
It's like the weirdest Christmas ever. | 0:54:34 | 0:54:37 | |
OK, we're in the box. | 0:54:37 | 0:54:40 | |
There it is. | 0:54:44 | 0:54:45 | |
HE GULPS AND SIGHS | 0:55:02 | 0:55:04 | |
I daren't look. | 0:55:09 | 0:55:11 | |
Ooh. | 0:55:11 | 0:55:14 | |
There's the tray containing the bundle. | 0:55:14 | 0:55:17 | |
This suddenly is now the most precious artefact | 0:55:17 | 0:55:19 | |
I shall ever handle. | 0:55:19 | 0:55:22 | |
There it is. | 0:55:25 | 0:55:27 | |
Intact. | 0:55:31 | 0:55:33 | |
From space. | 0:55:33 | 0:55:34 | |
No parachute, no magic. | 0:55:34 | 0:55:37 | |
There is one further test I could do, | 0:55:37 | 0:55:40 | |
cos I did spot over here... | 0:55:40 | 0:55:41 | |
And this does work. Yeah, it does work. | 0:55:43 | 0:55:45 | |
Oh! | 0:55:47 | 0:55:48 | |
Do you know, it might just be intact. | 0:55:50 | 0:55:53 | |
That's not the bulb. That's not been to space. THIS is our space bulb. | 0:55:53 | 0:55:58 | |
If this works, I will be staggered | 0:55:58 | 0:56:01 | |
because when the director suggested using a light bulb, I said no. | 0:56:01 | 0:56:05 | |
Oh... | 0:56:05 | 0:56:07 | |
HE LAUGHS | 0:56:07 | 0:56:09 | |
That is astonishing! | 0:56:12 | 0:56:14 | |
Over there is a very happy man indeed | 0:56:14 | 0:56:16 | |
because I said, "That's just a step too far - it can't possibly work." | 0:56:16 | 0:56:19 | |
That light bulb has been flown up to space and dropped - | 0:56:19 | 0:56:24 | |
85,000 feet, I think, was the exact height - back down to Earth. | 0:56:24 | 0:56:28 | |
It landed... Well, it landed on rocks on a mountain. | 0:56:28 | 0:56:31 | |
It took days to find it. | 0:56:31 | 0:56:33 | |
The only thing protecting it was this whole system, | 0:56:33 | 0:56:36 | |
which was home-made | 0:56:36 | 0:56:38 | |
and modelled on the way a woodpecker's skull | 0:56:38 | 0:56:41 | |
protects its brain when subjected to G pecking trees. | 0:56:41 | 0:56:44 | |
This was subjected to G landing without a parachute from space. | 0:56:44 | 0:56:49 | |
I'm staggered! | 0:56:49 | 0:56:51 | |
Come on, that's worth a round of applause. They're so relieved! | 0:56:52 | 0:56:56 | |
APPLAUSE | 0:56:56 | 0:56:58 | |
That is amazing! | 0:56:58 | 0:56:59 | |
But those amazing, shock-absorbing qualities | 0:57:01 | 0:57:04 | |
aren't just for safeguarding an iconic bird | 0:57:04 | 0:57:07 | |
and a home-made spacecraft. | 0:57:07 | 0:57:10 | |
They might make a difference to motorcyclists all over the world. | 0:57:10 | 0:57:14 | |
There are already helmet manufacturers looking at this, | 0:57:16 | 0:57:19 | |
which means, one day, woodpeckers could be life-savers. | 0:57:19 | 0:57:24 | |
And that, I think you'll agree, is quite miraculous. | 0:57:24 | 0:57:28 | |
'Next time on Miracles of Nature, | 0:57:31 | 0:57:33 | |
'I'll be looking at how animals' super-senses | 0:57:33 | 0:57:37 | |
'might change the way we experience OUR world, | 0:57:37 | 0:57:39 | |
'allowing us to hear through solid rock...' | 0:57:39 | 0:57:44 | |
EXPLOSION | 0:57:44 | 0:57:47 | |
Hello! | 0:57:47 | 0:57:48 | |
'..to see without using our eyes...' | 0:57:48 | 0:57:51 | |
That's astonishing. | 0:57:51 | 0:57:54 | |
'..and to feel something that happened 30 seconds earlier.' | 0:57:54 | 0:57:57 | |
This is what we'll all be in. This is the future. | 0:57:58 | 0:58:01 | |
Subtitles by Red Bee Media Ltd | 0:58:24 | 0:58:27 |