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Ooh.

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Ha-ha!

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Ooh!

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Ha-ha-ha-ha!

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ALARM CLOCK RINGS

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Hello viewers, and welcome
to my World Of Invention -

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the show that
irons the jeans of genius

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and keeps you connected
with kinetics.

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Someone once said, "Necessity is
the mother of invention."

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Well, not necessarily.

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Today, we're looking at inventions
with another mother altogether,

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Mother Nature.

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We'll be seeing
how she's provided inspiration

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for many a delightful discovery.

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Such as the robot that thinks
it's a venus flytrap.

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Eight dead flies

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makes it work for 12 days.

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And my science correspondent,
Mr Jem, proves a dab hand

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at breathing underwater,
thanks to an artificial gill.

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I'm doing it, breathing air
that's been pumped out of water.

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And we'll be meeting Mr Theo Jansen,
a man who makes

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perambulating pets
out of plastic tubing.

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Oh, yes. He does, you know!

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But first...
ELEPHANT TRUMPETS

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Shh. Quiet, Kevin.

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ELEPHANT TRUMPETS

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Some machines you might think
rather fishy.

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Over to you, Ashley m'dear.
Why, thank you.

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I'm sure you'll agree, Wallace,
that Mother Nature

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is the best inventor of them all.

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She's been perfecting designs
for about four billion years or so.

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Whether it's a super-extendable
tongue for catching bugs,

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or elastic tendons
for extra jumping power,

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or one bizarrely long finger
for getting a bit of grub,

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Mother Nature
is the ultimate engineer.

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A German technology company
has decided to make the most

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of nature's great talent
for original design.

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The team here at Festo is turning
marine biology into machinery.

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Their inspiration comes from
this spectacular sea creature,

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the manta ray.

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They are very energy efficient,
they are agile

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and they can manoeuvre very easily.

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So how do they turn the grace
and agility of the manta ray

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into high-tech engineering?

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Well, they copied
the internal structure of its fin

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to come up with this, a fin-gripper.

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It's so flexible, you can use it
to make a robotic hand so sensitive

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that it can pick up easily bruised
fruit and veg.

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But the engineers have come up with
a more dramatic use

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of this fin technology - meet the
radio-controlled manta ray airship.

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We have here
the "fin ray" structure.

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We move it up, turn it,

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and then move down.

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Turn it, and move up.

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And it's like birds are flying

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or even if a manta ray is swimming
in the water,

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it's the same behaviour.

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With its ray-like wings
and tail fin,

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the Air Ray can twist and turn
as nature intended.

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This is not just an executive toy.

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With some natural inspiration,
we can create flying machines

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without noisy, gas-guzzling engines
or big swirling propellers.

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The Air Ray just needs helium
to give it buoyancy.

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But controlling its fins
requires an extra set of hands.

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Couldn't do that
in air-traffic control.

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Perhaps air-traffic control
may one day be a thing of the past.

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Studying penguins under water
has inspired the technology

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that these are testing.

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They move without bumping into
each other or their surroundings.

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Even a mechanical penguin
is happier in the water.

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The artificial fin technology lets
them move smoothly and silently -

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a perfect vehicle to observe marine
life with minimum disturbance.

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But how nice would it be to have
a couple of low-flying penguins

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gently following you around?

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Ooh. And Ray and Gunta
can come, too.

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That all went swimmingly.

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Anyway, here's a young lad
who brings a new meaning
to the old saying, "time flies".

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Yes, Wallace, time flies.

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And sometimes, flies can be time.

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Let me explain.
Take this clock, for example.

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You never need to change batteries
or plug it in because it gets energy

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from eating these things.

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Design student James Auger is
creating bizarre clocks and lamps

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with an appetite for insects.

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So where did James's ideas
come from?

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We looked at nature,
specifically carnivorous plants.

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They've got various methods
for attracting insects,

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then capturing them,

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eventually consuming them
to create energy.

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It's in those organisms
that we looked for inspiration.

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The insect-munching plants
that inspire James

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live in soil that short of nitrogen.

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They top up their diet
with a bug or two.

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This is the fly paper clock,
inspired by the drosera family.

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This plant has got a shiny surface.

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Flies are attracted because
they think they can get a drink.

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Actually, it's sticky so the flies
get stuck and they're consumed.

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So we have a sheet of fly paper
revolving around two rollers.

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Flies get stuck to the fly paper,
pass over the blade,

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which scrapes them off into the fuel
cell which generates electricity

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to turn a motor powering the rollers
and the clock.

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But how does he turn a fly
into a buzz of electricity?

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The solution comes from
inventive minds at
Bristol robotics laboratory.

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We want robots to get
energy from the environment.

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Animals have already cracked this
problem because animals eat stuff.

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They turn that stuff, biomass,
into energy.

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We want to get robots
to turn biomass into electricity.

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A robot powered by flies?
That might just take off!

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So, let's meet
the fly-powered ecobot.

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It's all thanks to something clever
called a microbial fuel cell.

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This is a microbial fuel cell.

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We use bacteria and food.

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The bacteria munch away on the food.

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We steal the electricity, the
electrons inside of the bacteria.

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We manage to steal those electrons

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and that electricity
is what powers the robot.

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Eight dead flies
in the microbial fuel cells

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makes it work for about 12 days.

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Thanks to Professor Melhuish,

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maybe one day this will be
a renewable energy source.

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Insects might be powering more than
robots and clocks in the future.

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There's never any shortage of flies.

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Oh, yes!

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We've been thinking about
green energy, haven't we, lad?

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Or should I say "greens" energy?

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ELEPHANT TRUMPETS
May I proudly present
my jumbo generator! Ha-ha-ha-ha!

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Kevin here takes
the sprouts in one end

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and after a few moments...

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FARTING
Thank you, Kevin.

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He can produce enough gas
to run the entire studio.

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That's wind power for you!

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Speaking of which,
let's meet a man who uses wind

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in an unusual
but rather more tasteful way.

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He's this week's
Inventor Of The Week.

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Come with me, Wallace,
to a wind-swept beach in Holland.

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This is home to
an incredible creature

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that only needs a slight breeze
to spring into life.

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My name is Theo Jansen.

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We're here in Holland,

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where I work every day
and try to make new forms of life.

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Which keeps me busy 24 hours a day.

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I put them out on the beaches
where they can live in the future.

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They don't have to eat.
They get energy from the wind.

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Theo has been making his creatures
for over 20 years

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and is evolving such clever designs

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that he hopes they'll leave home
and live in the Dutch sand dunes.

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Incredibly, his animal-like
creatures are only made from PVC.

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He's worked out how these pipes

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used to cover electric wires,
can become a curved foot,

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a leg bone and a flexible,
hard-wearing joint.

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Inventing wind-powered creatures
was never going to be plain sailing.

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In 1991, he discovered
the first of many problems.

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The first challenge was walking.

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The first leg was very complicated.

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They had to be
a very complicated system.

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Then, the second generation came

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and what I did was I combined
the wheel with legs.

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He came up with a way to build
a rotating hip bone

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and worked out all the different
lengths of PVC legs he'd need

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to turn a spinning hip bone into
the perfect low-powered footstep.

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This circular movement
is transformed

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to a complex movement here.

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As soon as it has put its foot
on the ground,

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it draws a straight line and
the animal stays on the same level.

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Getting them to walk smoothly
was the first step,

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but his animals still needed
their creator to get them going.

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He had to pull them into the wind
before they could scuttle back.

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Theo didn't want to always
have to pull his offspring.

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So the next generation
got a propeller.

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Then to give them more power,

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he borrowed nature's best
wind design and gave them wings.

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But, you might say,
what if the wind stops blowing?

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Would he have to come to their
rescue? He's thought of that, too.

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They can now capture and store wind
in a stomach of plastic bottles.

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The wings are not connected directly
to the feet any more, but to pumps

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that pump air into lemonade bottles.

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You could say this is "pressed wind"
and they can use this energy

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in situations that the wind has
fallen away on the beach
and the tide would come up.

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They have energy in their stomach
to reach the dunes
and save their lives.

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Incredible stuff!

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But before his beach-dwellers can
live without their creator at hand,

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they have another problem -
they're not keen on taking a dip.

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Big waves versus
a light plastic body.

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It's not going to end well.

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So his new family have
a water-detection system -

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a tube to pick up signs of water

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and PVC-built sensors
that spring into action

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and send his water-shy creatures
back up the beach.

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It feels the water.

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This will be very important
for the beach animals to survive.

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Through hours of experimenting
and trial and error,

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Theo's designs are becoming
more and more independent.

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What I found about this experience
of making new forms of life,

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is that you discover the problems
which the real creator must have had

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creating this world.

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These animals will survive
on their own.

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Like you raise your children
and there comes a day

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that you kick them out the door
and they live their own lives.

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Hopefully, they will survive
a lot better than they do now.

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Then I could die quietly, knowing
that I will live on for the beaches.

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# Bom-bom-bom
Curiosity Corner. #

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Oh, welcome to Curiosity Corner.

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00:14:42,680 --> 00:14:46,000
Oh, dear! Looks like a power outage.

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Not to worry.
This calls for power sproutage.

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Load her up, lad.

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00:14:52,640 --> 00:14:55,120
ELEPHANT TRUMPETS

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FARTS

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Ah, there! That's better.

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So, now, let's shine the spotlight
on the humble termite,

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and some rather clever
creature construction.

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00:15:07,720 --> 00:15:12,080
Clever's the word, Wallace,
because from the humble termite

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we can learn a lot about
how to build our own houses.

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00:15:16,200 --> 00:15:18,640
Termites live deep underground,

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00:15:18,640 --> 00:15:23,440
with up to two million living
in one intricately designed nest

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00:15:23,440 --> 00:15:29,200
centred around a huge queen
who can live for 45 years!

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00:15:29,200 --> 00:15:32,040
But they do get a rather bad press.

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Mention "termite"
to anyone from, say, Texas,

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00:15:36,520 --> 00:15:39,680
it's enough to strike terror
into their hearts.

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These miniature critters
in less than five months
can eat you out of house and home.

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But here's the curious thing.

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Termites don't just destroy houses.
They build them, too.

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00:15:54,400 --> 00:15:57,360
Termite mounds.

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00:15:57,360 --> 00:16:03,520
These eight-metre-high towers are
built out of sand and termite spit!

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00:16:03,520 --> 00:16:08,400
It seems that these structures
can teach us about building.

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Not the use of spit, but
something else - air conditioning.

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00:16:13,080 --> 00:16:17,960
What you see here is
a natural air-conditioning system.

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00:16:17,960 --> 00:16:22,160
Termites designed the structure
with a labyrinth of tunnels

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allowing old or stale
or warm air out,

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and new fresh air in.

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The hot air from the nest rises
and escapes out of the chimney.

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It's such impressive engineering

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that we've started to build
termite-inspired buildings,

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00:16:40,320 --> 00:16:44,360
like Portcullis House in London,
next to the Houses of Parliament.

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00:16:44,360 --> 00:16:48,480
It's full of MPs' offices,
so it needs 14 tall chimneys

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00:16:48,480 --> 00:16:50,840
to get rid of all the hot air.

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00:16:50,840 --> 00:16:56,360
Termites also inspired this
shopping centre in Harare, Zimbabwe.

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They keep the insides cool
when it's 40 degrees outside -

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00:17:00,200 --> 00:17:03,080
a whopping 90% energy saving.

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00:17:03,080 --> 00:17:05,680
Our termite-inspired buildings

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00:17:05,680 --> 00:17:08,920
let air blow in through
holes in the walls,

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00:17:08,920 --> 00:17:13,640
but termite mounds
don't need these large holes.

242
00:17:13,640 --> 00:17:17,200
Their ventilation system
is far more clever.

243
00:17:17,200 --> 00:17:21,520
Construction engineer Rupert Soar
is part of a team

244
00:17:21,520 --> 00:17:25,600
unearthing just how smart
those termites are at building.

245
00:17:25,600 --> 00:17:27,600
..one, go!

246
00:17:27,600 --> 00:17:30,560
In 2004, he went to Namibia

247
00:17:30,560 --> 00:17:34,920
to discover exactly how their towers
were put together.

248
00:17:34,920 --> 00:17:40,440
'We started filling termite mounds
with plaster of Paris or gypsum,

249
00:17:40,440 --> 00:17:44,800
'the white material used
for leg plaster casts.'

250
00:17:44,800 --> 00:17:47,960
A couple of minutes
and that will be set.

251
00:17:47,960 --> 00:17:51,840
Then we built
this enormous scanning machine

252
00:17:51,840 --> 00:17:54,280
that we put over the mound.

253
00:17:54,280 --> 00:17:59,920
Then we cut away 1mm at a time,
taking away 1mm slices.

254
00:17:59,920 --> 00:18:03,560
We literally photographed
each of those slices,

255
00:18:03,560 --> 00:18:06,080
looking down, seeing the structure.

256
00:18:06,080 --> 00:18:08,440
We take the thousands of photographs

257
00:18:08,440 --> 00:18:11,920
and reconstruct those
into a full model

258
00:18:11,920 --> 00:18:15,120
of the inside of a termite mound.

259
00:18:15,120 --> 00:18:19,840
They discovered the insides
are incredibly complex.

260
00:18:19,840 --> 00:18:24,840
A network of fine tubes soaks up
the energy of passing wind.

261
00:18:24,840 --> 00:18:29,520
The flow of the wind pushes air
through the porous soil,

262
00:18:29,520 --> 00:18:33,320
allowing the nest atmosphere
to mix with fresh air.

263
00:18:33,320 --> 00:18:38,520
It's a gentle ventilation system for
a cool fresh home without drafts.

264
00:18:38,520 --> 00:18:44,000
Rupert and his colleagues are sure
that we can copy these techniques

265
00:18:44,000 --> 00:18:48,400
for incredible energy-efficient
houses of our own.

266
00:18:48,400 --> 00:18:52,360
We want to take that digital
information from the termite mounds

267
00:18:52,360 --> 00:18:58,000
then start to use the computer
to grow skins and even whole walls

268
00:18:58,000 --> 00:19:00,400
for buildings themselves.

269
00:19:00,400 --> 00:19:04,280
We can use bricks that soak up
energy from the wind

270
00:19:04,280 --> 00:19:06,960
that keep our houses fresh and cool.

271
00:19:06,960 --> 00:19:11,040
Houses that could look
a bit like these.

272
00:19:11,040 --> 00:19:15,880
Looks interesting. Just not sure
where you'd put the bookshelves.

273
00:19:15,880 --> 00:19:20,200
But then, I guess
termites aren't bookworms.

274
00:19:21,840 --> 00:19:25,160
Yeah. Clever little critters,
aren't they?

275
00:19:25,160 --> 00:19:28,320
SNIFFING
People often ask me, what...

276
00:19:28,320 --> 00:19:30,920
Hey! What's going on?

277
00:19:30,920 --> 00:19:34,120
Kevin. Get out of my particulars.

278
00:19:34,120 --> 00:19:36,160
Oh!

279
00:19:36,160 --> 00:19:38,920
Oh. Um... Anyway.

280
00:19:38,920 --> 00:19:42,880
My top five animal-inspired
contraptions.

281
00:19:42,880 --> 00:19:47,960
Let's see what my archive librarian
Goronwy has got for us.

282
00:19:47,960 --> 00:19:50,000
Right ho, Mr Wallace.

283
00:19:50,000 --> 00:19:54,080
For this week's contraption
countdown I've got five inventions

284
00:19:54,080 --> 00:19:56,520
inspired by the animal kingdom.

285
00:19:56,520 --> 00:19:58,520
It's these boxfish.

286
00:19:58,520 --> 00:20:02,880
It's from these fish
that we got the idea for boxes!

287
00:20:02,880 --> 00:20:08,360
We'd have nothing to put things in
and the world would be untidier.

288
00:20:08,360 --> 00:20:10,320
What? Oh!

289
00:20:10,320 --> 00:20:13,160
That's completely wrong! I'm sorry.

290
00:20:13,160 --> 00:20:17,440
Boxfish have contributed
to the design of motorcars.

291
00:20:17,440 --> 00:20:20,800
Have they really?
Well done, boxfish.

292
00:20:21,880 --> 00:20:25,480
Who can guess
what animal inspired this?

293
00:20:25,480 --> 00:20:27,520
I'll give you a clue.

294
00:20:27,520 --> 00:20:31,440
It's an elephant.
Oh. I've given it away now.

295
00:20:31,440 --> 00:20:34,280
They say elephants never forget.

296
00:20:34,280 --> 00:20:40,800
I'm certain that real elephant
won't forget this in a hurry.

297
00:20:42,200 --> 00:20:46,920
This fantastic aquatic robot
built by Professor Huosheng Hu.

298
00:20:46,920 --> 00:20:49,560
It looks like a fish.
It moves like a fish.

299
00:20:49,560 --> 00:20:51,600
And it comes with chips.

300
00:20:51,600 --> 00:20:53,640
Microchips, of course!

301
00:20:53,640 --> 00:20:56,600
New technology. Old joke.

302
00:20:58,240 --> 00:21:02,160
I'm not saying that the wheel
was invented by this sausage dog.

303
00:21:02,160 --> 00:21:07,240
The wheel has been around for ages.
The wheel has always been a-ROUND!

304
00:21:07,240 --> 00:21:12,080
And Hotspur here, who was born
with paralysed back legs in 1936,

305
00:21:12,080 --> 00:21:16,960
goes to show what human ingenuity
and doggedness can achieve.

306
00:21:19,840 --> 00:21:24,680
If you were inside a shark's skin it
used to mean you'd just been eaten.

307
00:21:24,680 --> 00:21:26,680
But not any more.

308
00:21:26,680 --> 00:21:30,960
A swimming costume has been modelled
on the skin of a shark,

309
00:21:30,960 --> 00:21:33,200
which lets swimmers go faster.

310
00:21:33,200 --> 00:21:38,280
Or you could just do what I do
and let a real shark in the pool!

311
00:21:38,280 --> 00:21:41,520
That'd make them go faster.
Ho-ho. Brilliant!

312
00:21:41,520 --> 00:21:48,040
Here's another item inspired by
our fishy friends, artificial gills.

313
00:21:48,040 --> 00:21:52,360
Don't hold your breath. They never
got off the drawing board.

314
00:21:52,360 --> 00:21:56,760
Thanks, lad.
Mmm... Over to you, Mr Jem.

315
00:21:56,760 --> 00:21:59,280
Thank you, Mr Wallace.

316
00:21:59,280 --> 00:22:04,720
400 million years ago primitive life
made the ultimate journey.

317
00:22:04,720 --> 00:22:09,080
It crawled out of the sea
to begin a new chapter of existence

318
00:22:09,080 --> 00:22:10,680
on dry land.

319
00:22:10,680 --> 00:22:13,200
Which is why it sometimes seems odd

320
00:22:13,200 --> 00:22:17,280
that human beings now take
every opportunity to get back in.

321
00:22:19,320 --> 00:22:25,400
Dreams of deep-sea adventures
are suffocated by one big problem.

322
00:22:25,400 --> 00:22:27,840
Our lungs absorb oxygen from air.

323
00:22:27,840 --> 00:22:31,520
We're not designed to take it
straight from water.

324
00:22:31,520 --> 00:22:38,000
Being a good inventor,
nature solved the problem eons ago
by giving fish gills.

325
00:22:38,000 --> 00:22:40,480
Fish make it look so easy.

326
00:22:40,480 --> 00:22:44,680
Their gills filter oxygen
that's dissolved in the water.

327
00:22:44,680 --> 00:22:48,880
Compared to fish,
we're a bit of a damp squib.

328
00:22:48,880 --> 00:22:53,240
But like so many things in nature,
building an artificial version

329
00:22:53,240 --> 00:22:57,000
has had inventors stumped
for generations.

330
00:22:58,880 --> 00:23:05,000
Early divers used long tubes
from the surface to pump air
down to the sea floor.

331
00:23:05,000 --> 00:23:07,080
God knows how that felt!

332
00:23:07,080 --> 00:23:12,920
Then in 1943, legendary
marine explorer Jacques Cousteau

333
00:23:12,920 --> 00:23:14,960
perfected his aqualung.

334
00:23:14,960 --> 00:23:20,240
Divers could now take the air down
with them and swim around freely.

335
00:23:20,240 --> 00:23:24,080
When the tank runs empty,
we've got to come to the surface.

336
00:23:24,080 --> 00:23:28,920
To stay down forever,
we need a way to mimic the fish

337
00:23:28,920 --> 00:23:32,960
and use the air that's dissolved
in the water to breathe.

338
00:23:35,280 --> 00:23:40,160
And, believe it or not, this might
not be as far off as you think.

339
00:23:40,160 --> 00:23:43,920
Alan Badner from Haifa
northern Israel

340
00:23:43,920 --> 00:23:48,480
has spent nine years trying to get
his underwater breathing invention

341
00:23:48,480 --> 00:23:50,480
off the drawing board.

342
00:23:50,480 --> 00:23:54,160
He's trying to extract
breathable air from the water

343
00:23:54,160 --> 00:23:58,960
so, one day, divers could stay
underwater for as long as they want.

344
00:23:58,960 --> 00:24:03,920
I knew there was oxygen in water.
The fish use it for breathing.

345
00:24:03,920 --> 00:24:08,320
So the only thing was how we can
take this oxygen out and breathe it.

346
00:24:08,320 --> 00:24:14,440
Fish are smarter.
They can leave the oxygen in liquid
form and breathe it like that.

347
00:24:14,440 --> 00:24:21,400
We have to first convert
the liquid oxygen into gas because
our lungs need gas oxygen.

348
00:24:21,400 --> 00:24:26,240
What's the ultimate aim? The aim now
is for underwater habitats.

349
00:24:26,240 --> 00:24:31,360
Maybe in the future, we'll make it
small enough for individual divers.

350
00:24:31,360 --> 00:24:33,960
Maybe in the future
we'll all live underwater.

351
00:24:33,960 --> 00:24:40,280
'For any of you who fancy
living underwater,
here's how Alan's invention works.'

352
00:24:41,360 --> 00:24:44,360
If you've ever opened
a bottle of pop,

353
00:24:44,360 --> 00:24:47,320
you've probably seen
the system work.

354
00:24:47,320 --> 00:24:51,240
Fizzy drinks are made
by dissolving gas into water.

355
00:24:51,240 --> 00:24:55,520
The amount of gas water can hold
depends on the pressure it's under.

356
00:24:55,520 --> 00:24:57,840
These are under a fair bit.

357
00:24:57,840 --> 00:25:03,640
If I release the pressure,
the water won't hold as much gas
and it'll come out as bubbles.

358
00:25:06,080 --> 00:25:08,080
That's what Alan's doing.

359
00:25:08,080 --> 00:25:11,280
He's reducing the pressure
of the water

360
00:25:11,280 --> 00:25:13,800
so the dissolved gas bubbles out.

361
00:25:13,800 --> 00:25:17,720
Then he needs to collect
the bubbles and quickly,

362
00:25:17,720 --> 00:25:20,240
because we need a lot of air.

363
00:25:20,240 --> 00:25:23,560
So, he makes a whirlpool.

364
00:25:26,360 --> 00:25:30,880
All the bubbles migrate
to the centre of the whirlpool.

365
00:25:30,880 --> 00:25:34,080
The dense water is flung
to the outside,

366
00:25:34,080 --> 00:25:36,560
the bubbles migrate to the centre.

367
00:25:36,560 --> 00:25:40,200
Alan then puts a pipe
into that column of gas,

368
00:25:40,200 --> 00:25:42,920
sucks it out for a fella to breathe.

369
00:25:47,160 --> 00:25:52,000
In Alan's prototype machine,
water is pumped through this pipe

370
00:25:52,000 --> 00:25:55,840
into a plastic drum
where it's put into a spin

371
00:25:55,840 --> 00:25:58,280
which creates the whirlpool.

372
00:25:58,280 --> 00:26:04,280
This is attached to a vacuum pump
that sucks out oxygen-rich gas

373
00:26:04,280 --> 00:26:09,440
and delivers it as a nice breathable
mixture out of this pipe.

374
00:26:09,440 --> 00:26:15,160
This lean, mean marine machine
collects enough air from this pool

375
00:26:15,160 --> 00:26:18,480
to keep someone breathing
for 20 minutes.

376
00:26:18,480 --> 00:26:26,640
To prove this is more than
"fishful" thinking, he's becoming
a human guinea pig.

377
00:26:26,640 --> 00:26:31,360
Soon, Alan's machine has sucked
a tankful of air from the water.

378
00:26:31,360 --> 00:26:33,280
This is the moment of truth.

379
00:26:33,280 --> 00:26:35,840
More people have walked on the moon

380
00:26:35,840 --> 00:26:38,480
than breathed air
extracted from water.

381
00:26:38,480 --> 00:26:42,000
Let's see it. I'm so intrigued now.

382
00:26:55,000 --> 00:26:58,000
Wow! Hi, there!

383
00:26:58,000 --> 00:26:59,800
First...

384
00:27:01,840 --> 00:27:04,240
Yeah. I'm just smiling.

385
00:27:06,520 --> 00:27:09,680
I do. Yeah? Good with that? Right.

386
00:27:09,680 --> 00:27:11,600
Next big question.

387
00:27:12,800 --> 00:27:15,240
Yes, I do feel like a fish.

388
00:27:15,240 --> 00:27:19,520
A fish in a fish tank, maybe.
And, finally...

389
00:27:21,160 --> 00:27:23,160
Sure. Come on. Really?

390
00:27:30,920 --> 00:27:35,280
People have been wanting to do this
and finally, I'm doing it,

391
00:27:35,280 --> 00:27:39,200
breathing air that's being
pumped out of water.

392
00:27:39,200 --> 00:27:41,720
Alan's invention works.

393
00:27:41,720 --> 00:27:47,960
Clearly, there's no way a diver can
carry one of these on their back.

394
00:27:47,960 --> 00:27:52,480
Our dreams of swimming like a fish
are still on the drawing board.

395
00:27:52,480 --> 00:27:56,480
Maybe one day, we'll never need
to come up for air.

396
00:27:56,480 --> 00:27:59,120
Alan? Alan!

397
00:27:59,120 --> 00:28:00,960
Oh, Mr Jem!

398
00:28:00,960 --> 00:28:05,640
All that floundering around.
Still, I won't carp on.

399
00:28:05,640 --> 00:28:09,120
ELEPHANT TRUMPETS
Hold him steady, lad.

400
00:28:09,120 --> 00:28:12,120
Finally... Oh, no!
THUNDERING

401
00:28:12,120 --> 00:28:14,160
He's after me buns.

402
00:28:14,160 --> 00:28:17,400
Kevin. Bad boy! Sit!

403
00:28:17,400 --> 00:28:19,440
Stay!

404
00:28:21,400 --> 00:28:24,320
Oh, Kevin. That's blown it!

405
00:28:25,680 --> 00:28:28,960
Well... That's it for this time.

406
00:28:28,960 --> 00:28:32,240
Next week we'll be...
FARTING

407
00:28:34,080 --> 00:28:35,680
Oh, Gromit!

408
00:28:39,160 --> 00:28:43,400
Gromit, have you got 50p
for the meter?

409
00:28:46,440 --> 00:28:49,160
If you've enjoyed our show,

410
00:28:49,160 --> 00:28:52,560
log on to our website.

411
00:28:57,120 --> 00:29:02,520
You'll find a fantastic competition,
details of our roadshow

412
00:29:02,520 --> 00:29:05,360
and lots of ways
to get you inventing.

413
00:29:05,360 --> 00:29:08,080
Pull your finger out. Get clicking.