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This is Absolute Genius. | 0:00:02 | 0:00:03 | |
'So sit down, buckle up and get ready for take off!' | 0:00:03 | 0:00:08 | |
'Each show, we'll introduce you to a different genius.' | 0:00:08 | 0:00:11 | |
'An amazing person, who had a genius idea, which shaped the world.' | 0:00:11 | 0:00:16 | |
'And they will inspire us | 0:00:16 | 0:00:18 | |
'to come up with our own genius idea at the end of each show.' | 0:00:18 | 0:00:22 | |
'But will it be any good?' | 0:00:22 | 0:00:23 | |
'Will it be any good?! It'll be...Absolute Genius!' | 0:00:23 | 0:00:28 | |
'And on today's show we're going to get wet...' | 0:00:29 | 0:00:33 | |
'Very wet.' | 0:00:33 | 0:00:34 | |
'As we explore the murky depths of an absolute genius!' | 0:00:35 | 0:00:39 | |
You know what this means? This means war. | 0:00:39 | 0:00:41 | |
Three, two, one... Liftoff. | 0:01:00 | 0:01:03 | |
Ah. You join me in the bath where today we go inside | 0:01:15 | 0:01:18 | |
one of the greatest scientific minds this world has EVER seen. | 0:01:18 | 0:01:23 | |
He was famous for coming up with a genius idea whilst in the bath. | 0:01:23 | 0:01:26 | |
Not only was he a fantastic mathematician and engineer, | 0:01:26 | 0:01:29 | |
but his genius machines are still being used today. | 0:01:29 | 0:01:32 | |
He did all of this over 2,000 years ago. | 0:01:32 | 0:01:36 | |
Why are you in my bath? | 0:01:36 | 0:01:38 | |
I, I don't know. | 0:01:39 | 0:01:42 | |
Ladies and gentlemen, we give you... Archimedes! | 0:01:42 | 0:01:46 | |
Why are you in his bath, Dom? | 0:01:46 | 0:01:48 | |
I don't know... | 0:01:48 | 0:01:50 | |
Inspired by HIS genius ideas, we're going to be coming up | 0:01:50 | 0:01:53 | |
with our OWN genius idea later on in the show. | 0:01:53 | 0:01:56 | |
'We bring one of his maddest and baddest inventions to life | 0:01:56 | 0:01:59 | |
'when we make a deadly heat ray.' | 0:01:59 | 0:02:01 | |
-Ah! -Oh! -Come on! | 0:02:01 | 0:02:03 | |
But first, let's find out a little bit more | 0:02:03 | 0:02:05 | |
about the great man himself. | 0:02:05 | 0:02:07 | |
Archimedes was a Greek guy with a great beard, | 0:02:09 | 0:02:12 | |
born a ridiculously long time ago, around the year 287 BC. | 0:02:12 | 0:02:17 | |
That's why he's called an ANCIENT Greek. | 0:02:17 | 0:02:19 | |
Who are you calling ancient? | 0:02:19 | 0:02:22 | |
Sorry, Archie. | 0:02:22 | 0:02:23 | |
Ooh, numbers and algebra! | 0:02:26 | 0:02:28 | |
Archimedes was a genius when it came to maths, physics and engineering. | 0:02:28 | 0:02:31 | |
He was so clever he was hired to solve tricky problems | 0:02:31 | 0:02:34 | |
by the King of Syracuse. | 0:02:34 | 0:02:36 | |
He came up with brilliant theories about why objects float. | 0:02:36 | 0:02:40 | |
AND he built amazing machines | 0:02:40 | 0:02:42 | |
to help defend the king's city against attack! | 0:02:42 | 0:02:45 | |
Ow! Stop it! | 0:02:45 | 0:02:47 | |
'We're on a mission to find a really genius invention of Archimedes' | 0:02:47 | 0:02:51 | |
'that we can bring to life at the end of the show. | 0:02:51 | 0:02:54 | |
'He liked nothing better than coming up with those inventions | 0:02:54 | 0:02:57 | |
'whilst having a good, long soak.' | 0:02:57 | 0:03:00 | |
To really FEEL the inspiration of this great man Archimedes, | 0:03:01 | 0:03:04 | |
we've come to one of his favourite places. | 0:03:04 | 0:03:07 | |
You may know the story of Archimedes being in a bath | 0:03:07 | 0:03:09 | |
and coming up with the idea that helped him solve a problem | 0:03:09 | 0:03:12 | |
that had been puzzling him for ages. | 0:03:12 | 0:03:15 | |
He was so excited about solving this problem | 0:03:15 | 0:03:17 | |
that he jumped out of the bath - naked - | 0:03:17 | 0:03:19 | |
ran down the street - nudey - shouting out, "Eureka, Eureka!" | 0:03:19 | 0:03:23 | |
In Greek that means, "I've got it! I've got it!" | 0:03:23 | 0:03:26 | |
But what exactly had he got? | 0:03:26 | 0:03:28 | |
I...I don't know. | 0:03:28 | 0:03:29 | |
If only Fran, our genius scientist, was here to tell us more. | 0:03:29 | 0:03:33 | |
'This is Fran. She just loves experimenting...' | 0:03:33 | 0:03:37 | |
Aah! | 0:03:37 | 0:03:38 | |
'..to help explain the ideas of our geniuses. | 0:03:38 | 0:03:42 | |
'She's sure to pop up just when you really need her.' | 0:03:42 | 0:03:45 | |
-Ah. -What are you two doing in my bath? | 0:03:46 | 0:03:48 | |
BOTH: We don't know. | 0:03:48 | 0:03:50 | |
I'm not going to talk to you here! Get dressed and come with me. | 0:03:50 | 0:03:54 | |
I am dressed. | 0:03:56 | 0:03:57 | |
Archimedes was working on a problem that he'd been set by the king, | 0:03:58 | 0:04:02 | |
cos the king didn't know if his crown was made of pure gold or not. | 0:04:02 | 0:04:05 | |
So it was at that moment in the bath that Archimedes solved the problem? | 0:04:05 | 0:04:09 | |
-Yeah. -But why did he get so excited about that? | 0:04:09 | 0:04:12 | |
His solution didn't just allow him to work out | 0:04:12 | 0:04:14 | |
whether crowns were made of pure gold or not, | 0:04:14 | 0:04:16 | |
it allowed him to figure out why things float and why things sink. | 0:04:16 | 0:04:20 | |
And that is much more useful. Come with me. | 0:04:20 | 0:04:23 | |
-Sweeties! -Sweet shop! | 0:04:23 | 0:04:25 | |
So, boys, choose anything you want... | 0:04:27 | 0:04:30 | |
We can have any bag of sweets we want, | 0:04:30 | 0:04:33 | |
so long as it weighs exactly 100 grams. | 0:04:33 | 0:04:36 | |
-100 grams of Teeth, please. -Comin'. -DOM MUMBLES | 0:04:36 | 0:04:40 | |
-Which ones? -Down the end! | 0:04:40 | 0:04:43 | |
100 grams of Aniseed Balls, please. | 0:04:43 | 0:04:45 | |
Aniseed Balls, Aniseed Balls. | 0:04:45 | 0:04:47 | |
No, Sports Mix! No, they're the same as Midget Gems. | 0:04:48 | 0:04:51 | |
I want some Mini Marshmallows. Lots of them. | 0:04:51 | 0:04:54 | |
-Can I try a Rainbow Pencil, please? Down the bottom. -OK, I'm on it. | 0:04:54 | 0:04:57 | |
-Mm, that's good. No, I don't like them. -No. | 0:04:57 | 0:05:00 | |
Wait, stop stuffing your faces! | 0:05:04 | 0:05:06 | |
We're not complaining or anything, Fran, | 0:05:06 | 0:05:08 | |
but what's all this got to do with Archimedes? | 0:05:08 | 0:05:11 | |
Archimedes, he didn't spend his time in sweet shops, | 0:05:11 | 0:05:13 | |
but he spent his time studying materials. | 0:05:13 | 0:05:16 | |
And he knew that different materials could weigh the same, | 0:05:16 | 0:05:19 | |
but you get different amounts of material for that same weight. | 0:05:19 | 0:05:23 | |
So what you're saying is, you get some light and fluffy marshmallows, | 0:05:23 | 0:05:27 | |
-you get loads of them for 100 grams? -Yeah. | 0:05:27 | 0:05:30 | |
-Ah, but only a few Aniseed Balls? -Exactly! | 0:05:30 | 0:05:32 | |
And Archimedes figured out that the more of a material | 0:05:32 | 0:05:35 | |
you get for that certain weight, the more likely it is to float. | 0:05:35 | 0:05:38 | |
Mmm. So these, cos there's more of them, | 0:05:38 | 0:05:40 | |
are more likely to float than these few Aniseed Balls? | 0:05:40 | 0:05:43 | |
Yeah. Exactly. If you don't believe me, let's try it. | 0:05:43 | 0:05:46 | |
Ah, experiment time. Go on, then. | 0:05:46 | 0:05:48 | |
-Ah! -Sinkage! | 0:05:52 | 0:05:53 | |
-Sinkage, yes. -Sinkage, you see that? So? | 0:05:53 | 0:05:56 | |
-Get them in. -There you are... Floating! | 0:05:56 | 0:05:58 | |
-It's eureka! -Eureka! There your are. But hang on a minute. | 0:05:58 | 0:06:01 | |
Metal sinks just like the Aniseed Balls, doesn't it? | 0:06:01 | 0:06:04 | |
You don't get much for its weight. | 0:06:04 | 0:06:07 | |
But how come a metal boat floats? There's loads of metal. | 0:06:07 | 0:06:10 | |
That's a good question, that. | 0:06:10 | 0:06:12 | |
But to explain it, we're going to need loads more water than this. | 0:06:12 | 0:06:16 | |
Oh. | 0:06:16 | 0:06:17 | |
I think this should just about do it. | 0:06:19 | 0:06:22 | |
It's a very nice pool, | 0:06:22 | 0:06:23 | |
but you were supposed to be showing us how metal boats float? | 0:06:23 | 0:06:26 | |
The thing is, we know that if you've got two objects of the same weight, | 0:06:26 | 0:06:30 | |
then the bigger one is more likely to float. | 0:06:30 | 0:06:32 | |
So like with the Aniseed Balls and the marshmallows? | 0:06:32 | 0:06:35 | |
-Ah... -Mallows. -Yep. | 0:06:35 | 0:06:36 | |
That's why metal boats float. | 0:06:36 | 0:06:38 | |
If you had just a lump of metal, like iron, | 0:06:38 | 0:06:41 | |
all crushed together, then it wouldn't float. | 0:06:41 | 0:06:43 | |
But if you make that metal bigger, by making it into a boat shape, | 0:06:43 | 0:06:47 | |
you've got the same weight, but a bigger object... | 0:06:47 | 0:06:49 | |
And then it's going to float! | 0:06:49 | 0:06:52 | |
Exactly, and it's the same with people too. | 0:06:52 | 0:06:54 | |
You two, get your trunks on! | 0:06:54 | 0:06:56 | |
-And... -Yeah? -..Jump in! -Right! | 0:07:00 | 0:07:03 | |
Yeah... See what you mean. | 0:07:06 | 0:07:08 | |
Just like the Aniseed Balls, we don't float in water. | 0:07:08 | 0:07:12 | |
But you can make a person more likely to float, more buoyant, | 0:07:12 | 0:07:15 | |
by adding armbands and rubber rings to them, | 0:07:15 | 0:07:18 | |
cos that makes them bigger without changing their weight much. | 0:07:18 | 0:07:21 | |
BOTH: Oh, like this! | 0:07:21 | 0:07:24 | |
So basically, what Archimedes is saying is | 0:07:24 | 0:07:26 | |
now we're in essence bigger, we're more likely to float? | 0:07:26 | 0:07:29 | |
-That's exactly what I'm saying. -That's very clever. No, no! | 0:07:29 | 0:07:33 | |
Now with armbands and rubber rings making us bigger, we float. | 0:07:35 | 0:07:40 | |
BOTH: Eureka! | 0:07:40 | 0:07:42 | |
I'll say! | 0:07:42 | 0:07:43 | |
Archimedes' discoveries about how well different objects float | 0:07:43 | 0:07:47 | |
was crucial. | 0:07:47 | 0:07:48 | |
Until Archimedes came along more than 2,000 years ago, | 0:07:48 | 0:07:51 | |
building a ship that would float well | 0:07:51 | 0:07:53 | |
was always a trial and error operation. | 0:07:53 | 0:07:56 | |
While we go looking for some more Archimedes brilliance, | 0:07:58 | 0:08:01 | |
here's a selection of Greek geniuses fond of facial hair. | 0:08:01 | 0:08:04 | |
It's The Genius Top Five. | 0:08:04 | 0:08:07 | |
Five - the astronomer Aristarchus who worked out that the Earth | 0:08:08 | 0:08:12 | |
revolves around the sun. | 0:08:12 | 0:08:14 | |
Four - Eratosthenes. | 0:08:14 | 0:08:16 | |
He invented geography | 0:08:16 | 0:08:17 | |
and drew the very first map of the world. | 0:08:17 | 0:08:19 | |
Come on, dear, let's go. | 0:08:19 | 0:08:21 | |
Three - our mate Stavros. He makes brilliant kebabs. | 0:08:21 | 0:08:24 | |
Oh, yes, his tzatziki is to die for! | 0:08:24 | 0:08:26 | |
# La la, la la. # | 0:08:26 | 0:08:28 | |
Two - the mathematician Euclid. | 0:08:28 | 0:08:30 | |
He's the reason you do geometry at school. Thanks, Euclid! | 0:08:30 | 0:08:33 | |
Ah-ha! | 0:08:33 | 0:08:35 | |
And one - Plato. | 0:08:35 | 0:08:37 | |
A brilliant philosopher who once said... | 0:08:37 | 0:08:39 | |
Speaking of fools... | 0:08:45 | 0:08:47 | |
'So far, we've found out that Archimedes had a brilliant idea | 0:08:47 | 0:08:50 | |
'whilst having a bath | 0:08:50 | 0:08:51 | |
'and that he worked out why some objects float better than others.' | 0:08:51 | 0:08:56 | |
'Coming up... | 0:08:56 | 0:08:57 | |
'We see how he turned his genius to weapons of war.' | 0:08:57 | 0:09:00 | |
I presume this is the Archimedes' claw? | 0:09:00 | 0:09:03 | |
Turn on the sun. | 0:09:03 | 0:09:05 | |
-Ah! -Oh! -Come on! -Faster! | 0:09:05 | 0:09:09 | |
Quack! | 0:09:09 | 0:09:10 | |
Now, here's another one of Archimedes' genius inventions. | 0:09:10 | 0:09:13 | |
It's called the Archimedes' screw. | 0:09:13 | 0:09:15 | |
It looks like a giant corkscrew, | 0:09:15 | 0:09:17 | |
but it's actually the world's first water pump. | 0:09:17 | 0:09:19 | |
This is how it works - when you turn the wheel... Turn the wheel! | 0:09:19 | 0:09:22 | |
When you turn the wheel, it scoops up water here in the bottom... | 0:09:22 | 0:09:26 | |
it brings it up, up, up, up, all the way to the top | 0:09:26 | 0:09:29 | |
and then eventually, it deposits it into this trough here. | 0:09:29 | 0:09:32 | |
-Genius, eh? -Yeah, 2,300 years ago before pumps, taps, | 0:09:32 | 0:09:35 | |
and hoses were invented, farmers that planted their crops | 0:09:35 | 0:09:38 | |
near a river could now transport the water uphill. | 0:09:38 | 0:09:41 | |
Before then, it was always transferred by hand, | 0:09:41 | 0:09:44 | |
or by container, or a very, very tired donkey. | 0:09:44 | 0:09:47 | |
-EEY-ORE! -Exactly. The Archimedes' screw - | 0:09:47 | 0:09:50 | |
a simple yet brilliant invention that's still being used today | 0:09:50 | 0:09:53 | |
and we are going to see one! | 0:09:53 | 0:09:55 | |
No! Come on. Are we? Exciting, isn't it? | 0:09:55 | 0:09:58 | |
Hang on, where are we going? | 0:09:58 | 0:10:00 | |
I've got a feeling... You know, Archimedes, Greece. | 0:10:00 | 0:10:02 | |
It's going to be somewhere like Athens? No? Err... Corfu? | 0:10:02 | 0:10:07 | |
-No. -Where? | 0:10:07 | 0:10:09 | |
Stockton-on-Tees. | 0:10:09 | 0:10:10 | |
I LOVE Stockton-on-Tees! | 0:10:12 | 0:10:15 | |
This is Stockton-on-Tees. Home to the Tees River. | 0:10:19 | 0:10:23 | |
And this genius white water rafting and canoeing centre. | 0:10:24 | 0:10:27 | |
-Yeah-heh! -Looks good that, doesn't it? | 0:10:44 | 0:10:46 | |
Isn't it mad to think that this is all thanks to Archimedes? | 0:10:46 | 0:10:49 | |
-Mm. Come on, then, let's have a go! -All right. Look! | 0:10:49 | 0:10:53 | |
'Just before we get wet, though...' | 0:10:54 | 0:10:56 | |
'..we're going meet ace canoeist and genius expert Andy Laird. | 0:10:57 | 0:11:01 | |
'He designed this white water centre | 0:11:01 | 0:11:04 | |
'and took his inspiration from a great Archimedes invention.' | 0:11:04 | 0:11:07 | |
What's the secret behind this white water rafting course? | 0:11:09 | 0:11:12 | |
We take the water from the River Tees, divert it down this channel. | 0:11:12 | 0:11:16 | |
There's a few obstacles in there. | 0:11:16 | 0:11:18 | |
Goes round, makes some rapids, gets down to the bottom pool | 0:11:18 | 0:11:21 | |
and we lift it back to the top and it goes round again. | 0:11:21 | 0:11:23 | |
-The water goes from down there, uphill, and then ends up here? -Right. | 0:11:23 | 0:11:27 | |
So this is where Archimedes comes into it? | 0:11:27 | 0:11:29 | |
-You're right. Let's go and have a look. -Ah! | 0:11:29 | 0:11:32 | |
Whoa-ho! Look at the size of that! | 0:11:36 | 0:11:39 | |
Bit bigger than that one in the museum. | 0:11:39 | 0:11:41 | |
Andy, these are absolutely HUGE. What are they all about? | 0:11:41 | 0:11:44 | |
We've got four massive Archimedean screws here. | 0:11:44 | 0:11:47 | |
We lift the water from the bottom, right back to the top. | 0:11:47 | 0:11:50 | |
At the flick of a switch we can have instant white water, 24 hours a day. | 0:11:50 | 0:11:54 | |
-Brilliant. -How heavy are they? | 0:11:54 | 0:11:55 | |
These things weigh about 30 tons each, about ten metres long. | 0:11:55 | 0:11:59 | |
-They're seriously big bits of kit. -Yeah. | 0:11:59 | 0:12:01 | |
In fact, each one of these enormous Archimedes' screws | 0:12:04 | 0:12:08 | |
is twice as tall as a giraffe and as heavy as six African elephants. | 0:12:08 | 0:12:13 | |
And the water power they generate is about to give us | 0:12:15 | 0:12:18 | |
a white-knuckle white water ride. | 0:12:18 | 0:12:20 | |
-Here we go! Holdin' on! -Aargh! | 0:12:21 | 0:12:24 | |
Put it down. | 0:12:26 | 0:12:28 | |
-Down. -Wet! -Oh, it's wet! | 0:12:28 | 0:12:31 | |
-Wet! -Wet! Right... | 0:12:31 | 0:12:33 | |
-Aah! -Oh! | 0:12:33 | 0:12:35 | |
Wet! | 0:12:37 | 0:12:38 | |
Well, that was quite a drop. But look what's coming up... | 0:12:39 | 0:12:43 | |
THEY SHOUT | 0:12:50 | 0:12:53 | |
Well, that went, em, swimmingly... | 0:13:02 | 0:13:05 | |
It's fast. And it was freezing. Best theme-park ride you've ever been on. | 0:13:08 | 0:13:13 | |
Very exhilarating. | 0:13:14 | 0:13:16 | |
-He's a bit cold! -Oh-ho! | 0:13:18 | 0:13:21 | |
This course hasn't beaten us yet, though... | 0:13:23 | 0:13:26 | |
This one's for you, Archimedes! | 0:13:31 | 0:13:34 | |
We've made it! Yes! | 0:13:47 | 0:13:51 | |
-That was absolutely brilliant! -Thank you, Archimedes! | 0:13:51 | 0:13:56 | |
You bearded beauty! | 0:13:58 | 0:14:00 | |
Delighted to be of service. | 0:14:00 | 0:14:02 | |
So thanks to the Archimedes' screw we had the world's first water pump | 0:14:02 | 0:14:07 | |
and today we can go white water rafting in Stockton-on-Tees. | 0:14:07 | 0:14:10 | |
'Yes, Archimedes came up with lots of clever ideas, | 0:14:12 | 0:14:16 | |
'but there were some ancient Greeks whose inventions were, um, | 0:14:16 | 0:14:20 | |
'not quite so brilliant.' | 0:14:20 | 0:14:22 | |
It's The Not So Genius Idea. | 0:14:22 | 0:14:25 | |
Daedalus was a mythical ancient Greek inventor | 0:14:26 | 0:14:29 | |
who wanted to fly away from the Island of Crete. | 0:14:29 | 0:14:32 | |
He made wings out of feathers for himself and his son Icarus | 0:14:32 | 0:14:36 | |
and stuck them on to their arms with wax. | 0:14:36 | 0:14:38 | |
They took off, but Icarus apparently flew so high | 0:14:38 | 0:14:42 | |
-that he got too close to the sun. -What a lovely view! | 0:14:42 | 0:14:44 | |
-The wax melted, he lost his wings... -Aah! -..And fell into the sea. | 0:14:44 | 0:14:48 | |
That'll learn me! | 0:14:48 | 0:14:49 | |
Never underestimate the power of the sun. | 0:14:51 | 0:14:53 | |
'Coming up... Things are about to get hot and dangerous.' | 0:14:53 | 0:14:58 | |
-Ah! -Oh! -Come on! | 0:14:58 | 0:15:01 | |
There she goes. | 0:15:01 | 0:15:02 | |
'We're trying to find an invention by the great Archimedes | 0:15:02 | 0:15:06 | |
'that WE can recreate. | 0:15:06 | 0:15:08 | |
'So why are we driving in the fog along a farm track | 0:15:08 | 0:15:11 | |
'somewhere in a remote corner of Shropshire?' | 0:15:11 | 0:15:14 | |
'Well, we're looking for the home of someone who can tell us | 0:15:14 | 0:15:18 | |
'more about Archimedes' inventions.' | 0:15:18 | 0:15:20 | |
I think we're lost. | 0:15:21 | 0:15:23 | |
No, I think we're on the right road. | 0:15:24 | 0:15:26 | |
No, the milometer says we've gone at least two miles | 0:15:26 | 0:15:29 | |
since we turned off that main road earlier. | 0:15:29 | 0:15:31 | |
Yeah, which means we must nearly be here. And you know the milometer? | 0:15:31 | 0:15:35 | |
That's another spin-off of one of Archimedes' great creations. | 0:15:35 | 0:15:39 | |
Yeah, I knew that. But his was actually called the odometer. | 0:15:39 | 0:15:42 | |
-Odometer? -Hmm. -Oh. | 0:15:42 | 0:15:44 | |
Good knowledge, Dick. | 0:15:44 | 0:15:45 | |
Yes, Archimedes' odometer was a cart with gears that measured | 0:15:45 | 0:15:49 | |
the distance it travelled. | 0:15:49 | 0:15:51 | |
Why have we stopped? | 0:15:51 | 0:15:52 | |
-I think we've run out of fuel. -Oh, great! | 0:15:53 | 0:15:56 | |
You're so busy looking at your milometer, | 0:15:56 | 0:15:58 | |
that we've gone and run out of fuel. Brilliant(!) | 0:15:58 | 0:16:01 | |
Well, there's only one thing for it, isn't there? | 0:16:01 | 0:16:03 | |
'We're on our way to the home of genius helper Ivan Williams... | 0:16:03 | 0:16:08 | |
'If we can find it in this fog!' | 0:16:08 | 0:16:10 | |
'Ivan is fascinated by the clever engineering ideas | 0:16:12 | 0:16:15 | |
'that people from the Middle Ages and ancient world came up with. | 0:16:15 | 0:16:19 | |
'Especially their weapons and war machines.' | 0:16:19 | 0:16:21 | |
'At the moment he's working on his own design | 0:16:24 | 0:16:28 | |
'of one of Archimedes' most brilliant inventions.' | 0:16:28 | 0:16:31 | |
Archimedes was famous for creating several weapons that were | 0:16:31 | 0:16:35 | |
used to defend the city of Syracuse in Sicily against the Romans. | 0:16:35 | 0:16:39 | |
Yes, the Romans had started to lord it up in the Mediterranean. | 0:16:39 | 0:16:42 | |
But they hadn't reckoned upon Archimedes. | 0:16:42 | 0:16:45 | |
So we've come here to find out more about one of his inventions | 0:16:45 | 0:16:48 | |
that held the Roman Empire back. It's the Archimedes' claw! | 0:16:48 | 0:16:52 | |
Yes, it was absolutely deadly. | 0:16:52 | 0:16:55 | |
'Now, our genius helper Ivan has his own theory about | 0:16:55 | 0:16:59 | |
'just what Archimedes' claw was.' | 0:16:59 | 0:17:01 | |
So, Ivan, tell us about Archimedes' claw. | 0:17:01 | 0:17:04 | |
Rather than explain, I've made a model if you want to see it. | 0:17:04 | 0:17:07 | |
Under your magic black cloth? | 0:17:07 | 0:17:09 | |
-What do you think's under there? -I'll help you. | 0:17:09 | 0:17:11 | |
One, two, three. | 0:17:11 | 0:17:13 | |
-Reveal! -He's made a fortress! | 0:17:13 | 0:17:16 | |
And I presume this is the Archimedes' claw? | 0:17:16 | 0:17:19 | |
That's it. Big claw. Under the water. Hidden. | 0:17:19 | 0:17:21 | |
-It must have been massive. -To sink a boat it's got to be really big. | 0:17:21 | 0:17:25 | |
-Ready? -Hang on, hang on. | 0:17:25 | 0:17:27 | |
-Yes. -Come on. Come on, come on. Ready? | 0:17:27 | 0:17:30 | |
Aah! Hello, sailor! | 0:17:30 | 0:17:32 | |
Got him! | 0:17:32 | 0:17:34 | |
What we've got is an enormous weight on the bottom. | 0:17:35 | 0:17:38 | |
The idea would be when the iron came up, the cords would be pulled tight. | 0:17:38 | 0:17:41 | |
That would smash through the bottom of the boat and grip it. | 0:17:41 | 0:17:44 | |
These would slam round the sides | 0:17:44 | 0:17:46 | |
and then they would have these in the towers - | 0:17:46 | 0:17:49 | |
big stone yo-yos, if you like. | 0:17:49 | 0:17:51 | |
-Yeah. -And the higher the tower, the better. | 0:17:51 | 0:17:54 | |
And they would have been sat on a ramp. | 0:17:54 | 0:17:56 | |
They'd pull a chock away, it would roll forward, | 0:17:56 | 0:17:59 | |
-the weight would drop down and then go down... -Yep, bang! | 0:17:59 | 0:18:01 | |
So it sunk in, gripped it, and sunk the ship. | 0:18:01 | 0:18:04 | |
So, the Roman boats would come along thinking they'll take the castle. | 0:18:04 | 0:18:07 | |
Before they knew it, a spike would pierce the boat from underneath, | 0:18:07 | 0:18:11 | |
the grabbers would come from either side. | 0:18:11 | 0:18:13 | |
A boulder would come down, smash the front of the boat | 0:18:13 | 0:18:15 | |
-and it would get dragged back down underneath? -Yep. | 0:18:15 | 0:18:18 | |
-They weren't having a good day! -Wow. | 0:18:18 | 0:18:20 | |
-You know what this means? -No, what does this mean?! | 0:18:20 | 0:18:23 | |
-This means war! -Yeah? War? | 0:18:23 | 0:18:25 | |
-War! -Yeah? -Hmm. | 0:18:25 | 0:18:27 | |
On one side - the Greek genius Archimedes, defender of Syracuse. | 0:18:27 | 0:18:33 | |
On the other - the Romans | 0:18:34 | 0:18:36 | |
with their mighty fleet! | 0:18:36 | 0:18:38 | |
Come on, then, you rascally Romans! | 0:18:41 | 0:18:44 | |
-We'll have you lot! -Grrr! -Yeah, you like feta cheese with olives! | 0:18:44 | 0:18:48 | |
-Yeah, but you like candles! Yeah! -Here we go. | 0:18:48 | 0:18:50 | |
You cobbledy road-makers! Come on, then! | 0:18:50 | 0:18:53 | |
You've been clawed! | 0:18:56 | 0:18:58 | |
-Ready? It's going to get you now. -DOM GROWLS | 0:18:59 | 0:19:03 | |
Grrr! | 0:19:04 | 0:19:06 | |
Just a little further... Got him, Dom! | 0:19:07 | 0:19:11 | |
Do you think that's how they did it back in those days? | 0:19:11 | 0:19:15 | |
-I think that's very similar. -Yes, I do too. | 0:19:15 | 0:19:18 | |
That was amazing, wasn't it? | 0:19:20 | 0:19:22 | |
There's no doubt Archimedes was a really clever bloke, | 0:19:22 | 0:19:25 | |
but which one of his inventions can we have a go at making? | 0:19:25 | 0:19:28 | |
Cos I don't think we've found the right one yet. | 0:19:28 | 0:19:31 | |
Look, there's something else here. | 0:19:31 | 0:19:32 | |
"He set to catch the full rays of the sun at noon." | 0:19:32 | 0:19:35 | |
He's saying here that he set fire to boats, to Roman boats. | 0:19:35 | 0:19:38 | |
-With a special ray? -Yeah. | 0:19:38 | 0:19:40 | |
-Fire. -Hm. -Boats. -Hm. -Are you thinking what I'm thinking? | 0:19:40 | 0:19:43 | |
Stroke of genius! | 0:19:43 | 0:19:44 | |
2,000 years ago, Archimedes made a special heat ray | 0:19:45 | 0:19:49 | |
to defend his city walls against attack from Roman ships. | 0:19:49 | 0:19:52 | |
So how could we make our own deadly heat ray? | 0:19:52 | 0:19:57 | |
To find out more we've again called in the help | 0:19:57 | 0:19:59 | |
of our friendly scientist Fran. | 0:19:59 | 0:20:02 | |
Fran, Archimedes' heat ray sounds amazing. But what actually was it? | 0:20:04 | 0:20:08 | |
Well, he created his heat ray by using lots of mirrors | 0:20:08 | 0:20:11 | |
or one specially-shaped mirror to concentrate | 0:20:11 | 0:20:14 | |
the sun's heat into one place. | 0:20:14 | 0:20:16 | |
And that one place became so hot that you could set things on fire. | 0:20:16 | 0:20:20 | |
-Ah. -Sounds like our type of thing, that, Fran. | 0:20:20 | 0:20:22 | |
It does, and I've actually got a specially-shaped mirror for you. | 0:20:22 | 0:20:25 | |
-Oh, yeah. -You know where the sun is. | 0:20:25 | 0:20:27 | |
So we've got the sun, the mirror, what can we set on fire? | 0:20:27 | 0:20:30 | |
-I don't know. -Ah! Just like Archimedes did. -What? | 0:20:30 | 0:20:34 | |
-Let's set fire to a boat. -Where are you going to find a big red boat? | 0:20:34 | 0:20:37 | |
-There, there. -Oh. | 0:20:37 | 0:20:39 | |
Right, here's the plan. | 0:20:42 | 0:20:44 | |
Our genius idea is to create | 0:20:44 | 0:20:46 | |
our own version of Archimedes' heat ray. | 0:20:46 | 0:20:49 | |
By cleverly positioning mirrors, Archimedes caught the sun's rays | 0:20:49 | 0:20:53 | |
and concentrated them to make one amazingly-hot heat ray. | 0:20:53 | 0:20:56 | |
Our challenge is to use Fran's special mirrors | 0:20:57 | 0:21:01 | |
to send the red boat up in flames. | 0:21:01 | 0:21:03 | |
-Right, boat. -Yes. -Reflectors. -Let's set it on fire. | 0:21:06 | 0:21:10 | |
'We, of course, know exactly what we're doing.' | 0:21:10 | 0:21:12 | |
Ouch! | 0:21:12 | 0:21:14 | |
'But don't try this at home. | 0:21:14 | 0:21:16 | |
'You could give yourself a pretty nasty burn.' | 0:21:16 | 0:21:18 | |
Look at that, we've got smoke. | 0:21:18 | 0:21:20 | |
What I want to do, I want to try and get it to go on fire... | 0:21:25 | 0:21:28 | |
to really prove that this works. | 0:21:28 | 0:21:31 | |
Luckily, it's a sunny day. But even with that it's slow work! | 0:21:31 | 0:21:35 | |
It's gone behind a cloud. | 0:21:35 | 0:21:37 | |
Remember, Archimedes had the hot Mediterranean sun. | 0:21:37 | 0:21:41 | |
-It's working, but it's not very practical in war, is it? -No, true. | 0:21:41 | 0:21:44 | |
If you stop the Romans and go, "Excuse me a minute..." | 0:21:44 | 0:21:47 | |
"Just going to stand here for half an hour!" | 0:21:47 | 0:21:49 | |
"Get me wok and put it on your boat." | 0:21:49 | 0:21:52 | |
Are you struggling a bit there, boys? | 0:21:56 | 0:21:58 | |
No, Fran, we're not struggling! Well, maybe a little bit. | 0:21:58 | 0:22:01 | |
We got smoke, we got heat, | 0:22:01 | 0:22:02 | |
but it's just going to take ages to get this on fire. | 0:22:02 | 0:22:04 | |
Your problem is this boat isn't that easy to set on fire. | 0:22:04 | 0:22:07 | |
Another problem is the sun keeps on going behind the clouds. | 0:22:07 | 0:22:10 | |
What we need is an artificial sun that we can have on all the time. | 0:22:10 | 0:22:13 | |
-You've got one of them? -Funny you should say that. | 0:22:13 | 0:22:16 | |
-She's got everything, ain't she? -Ain't she just. | 0:22:16 | 0:22:19 | |
Oh! Mmm! | 0:22:19 | 0:22:20 | |
Right, in you come. Pop your safety specs on... | 0:22:22 | 0:22:25 | |
-because what we've got here is a heat lamp. -Hey! | 0:22:25 | 0:22:29 | |
And we're going to use this along with this other mirror | 0:22:29 | 0:22:32 | |
as our artificial sun. | 0:22:32 | 0:22:34 | |
It might look like it's facing the wrong way, but what's happening | 0:22:34 | 0:22:37 | |
is the light and heat from this lamp is being reflected off this mirror | 0:22:37 | 0:22:41 | |
and then over to that mirror, which will act as Archimedes' heat ray. | 0:22:41 | 0:22:47 | |
Right, I've got it. So that's kind of like your sun. | 0:22:47 | 0:22:50 | |
And this is the reflector | 0:22:50 | 0:22:51 | |
which is going to be generating the heat, etc? Yes? | 0:22:51 | 0:22:54 | |
-Yeah. -OK, this is great. That's how it starts off. | 0:22:54 | 0:22:57 | |
But we can't exactly set fire to a boat in here, can we? | 0:22:57 | 0:23:00 | |
Well, no, that's why I've got two other things to show you. | 0:23:00 | 0:23:03 | |
Firstly this stuff - fuse wire - and that we can ignite in here. | 0:23:03 | 0:23:06 | |
That will take the flame outside where we can light the boat | 0:23:06 | 0:23:09 | |
a safe distance from the house. | 0:23:09 | 0:23:10 | |
It's like that stuff on cartoons... HE HISSES | 0:23:10 | 0:23:13 | |
-Exactly. Like the stuff that's on Mission Impossible. -Got it. | 0:23:13 | 0:23:17 | |
-And I've also got this stuff. -What, cotton wool? | 0:23:17 | 0:23:19 | |
No, no, this is flash wool. | 0:23:19 | 0:23:21 | |
-You know, you remember me using this stuff as a magician. -Oh. | 0:23:21 | 0:23:24 | |
-It bursts into flames and disappears. -Like this. | 0:23:24 | 0:23:27 | |
-Go on, ready... Whup! -That's my BBC pass! | 0:23:27 | 0:23:30 | |
All right, fair enough. | 0:23:30 | 0:23:32 | |
So, to sum it all up - we've got the flash cotton, the fuse wire, | 0:23:32 | 0:23:35 | |
our artificial sun to make our very own Archimedes' heat ray, | 0:23:35 | 0:23:38 | |
which will concentrate the heat to set fire to the boat. | 0:23:38 | 0:23:41 | |
But we're going to do all this by ourselves? | 0:23:41 | 0:23:44 | |
Yeah...that doesn't sound like the best idea now you say it out loud. | 0:23:44 | 0:23:47 | |
Wrong, Franny. Wrong. It sounds genius! | 0:23:47 | 0:23:52 | |
-Careful. -I am being careful. | 0:23:54 | 0:23:56 | |
Be more careful. | 0:23:56 | 0:23:58 | |
-Right, that's on. -Right. | 0:23:58 | 0:24:00 | |
Now this is going to go all the way to the boat. | 0:24:00 | 0:24:03 | |
'Now, don't copy this at home. | 0:24:07 | 0:24:09 | |
'We're doing this as a controlled experiment, | 0:24:09 | 0:24:12 | |
'but setting fire to stuff in your back garden is a no-no.' | 0:24:12 | 0:24:15 | |
Now for the flash cotton. Don't switch that on yet. | 0:24:15 | 0:24:18 | |
-Fearne Cotton? -Leave it. | 0:24:18 | 0:24:19 | |
-Am I going to do it? -Yeah. | 0:24:26 | 0:24:27 | |
-Are we going to blow up a boat? -We are! In three, two, one. | 0:24:27 | 0:24:31 | |
Go! | 0:24:31 | 0:24:32 | |
Come on. | 0:24:35 | 0:24:37 | |
We've got to get exactly the right angle so it hits the sweet spot. | 0:24:40 | 0:24:45 | |
That's it. | 0:24:45 | 0:24:46 | |
Is it working? | 0:24:46 | 0:24:48 | |
-Ah! -Oh! -Come on! | 0:24:52 | 0:24:54 | |
-Right, it's off! -Good boy! | 0:24:54 | 0:24:55 | |
This has got to go all the way outside now. All the way round. | 0:24:55 | 0:24:58 | |
We've probably got, what, about three minutes of this? | 0:24:58 | 0:25:01 | |
And then it's going to get to the boat and BOOM! | 0:25:01 | 0:25:04 | |
Faster. Come on! | 0:25:09 | 0:25:11 | |
There she goes. | 0:25:16 | 0:25:17 | |
Slowly and steadily, making its way along the fuse wire | 0:25:17 | 0:25:20 | |
to the boat down there. What's in the boat? | 0:25:20 | 0:25:22 | |
I'll tell you what's in the boat. A nice combustible bag of tricks. | 0:25:22 | 0:25:27 | |
You see, the thing about fuses is they can take a long time to burn. | 0:25:31 | 0:25:36 | |
HE WHISTLES | 0:25:37 | 0:25:39 | |
Yeah, a, um... A very long time. | 0:25:48 | 0:25:50 | |
In fact, we're best fading to black, actually. Let's do that. | 0:25:52 | 0:25:56 | |
Look! The fuse wire is nearly in the boat. | 0:25:56 | 0:25:58 | |
Tense moment. | 0:26:00 | 0:26:02 | |
'After all that hard work, this is finally it... | 0:26:03 | 0:26:07 | |
'Or is it?' | 0:26:07 | 0:26:09 | |
That boat's absolutely fine. Failed experiment. | 0:26:09 | 0:26:13 | |
No bangs, flashes. Whooshes. | 0:26:13 | 0:26:17 | |
-F-F-F-Fire! -Hmm? -F-F-F-Fire! | 0:26:17 | 0:26:21 | |
-It's on fire! Look at that, Archimedes! -Hey! | 0:26:23 | 0:26:27 | |
Eureka! We've done it! | 0:26:29 | 0:26:31 | |
FIRECRACKERS POP AND CRACKLE | 0:26:31 | 0:26:34 | |
Well done, boys! You've got a lovely fire going there! | 0:26:35 | 0:26:40 | |
I love Archimedes, me. He worked out how things float... | 0:26:52 | 0:26:56 | |
He invented the screw to make water go uphill | 0:26:57 | 0:27:00 | |
to save the poor old donkey | 0:27:00 | 0:27:02 | |
and give us a brilliant white water ride. | 0:27:02 | 0:27:05 | |
Then there was the Archimedes' claw. | 0:27:05 | 0:27:07 | |
And the heat ray. | 0:27:08 | 0:27:09 | |
Hm, Archimedes... you are an absolute genius. | 0:27:09 | 0:27:13 | |
Dick and Dom, it's been an absolute pleasure. | 0:27:13 | 0:27:17 | |
Now, roll the credits. | 0:27:23 | 0:27:24 | |
Go on. Oh, forget it! | 0:27:26 | 0:27:28 | |
Hey! | 0:27:32 | 0:27:33 | |
Aah! | 0:27:36 | 0:27:37 | |
THEY LAUGH | 0:27:37 | 0:27:40 | |
BOGIES! | 0:27:40 | 0:27:41 | |
-Oh! -Whoa! | 0:27:41 | 0:27:43 | |
It went right through me! | 0:27:47 | 0:27:49 | |
-Don't wobble it. -I'm not doing anything! -Stand still, then! | 0:27:49 | 0:27:52 | |
Oi, oi! | 0:27:52 | 0:27:54 | |
DICK GIGGLES | 0:27:55 | 0:27:57 | |
Subtitles by Red Bee Media Ltd | 0:27:57 | 0:28:00 |