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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 will 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 to come up with | 0:00:16 | 0:00:19 | |
our own genius idea at the end of each show. | 0:00:19 | 0:00:22 | |
But will it be any good? | 0:00:22 | 0:00:23 | |
-Will it be any good? It will be... -BOTH: -..Absolute Genius! | 0:00:23 | 0:00:27 | |
On today's show, we get all hot and steamy. | 0:00:29 | 0:00:33 | |
Go up and close and personal with great engines of power. | 0:00:33 | 0:00:37 | |
And find out all about horsepower. | 0:00:37 | 0:00:39 | |
-From the four-legged kind... -To the four-wheeled kind. | 0:00:39 | 0:00:43 | |
HE SQUEALS | 0:00:43 | 0:00:45 | |
'Three...two...one, lift-off!' | 0:01:07 | 0:01:10 | |
Today, we bring to you a man who had a very special kind of genius. | 0:01:20 | 0:01:24 | |
He took an invention that had been around for more than 50 years, | 0:01:24 | 0:01:27 | |
the steam engine, and made it a shed-load better. | 0:01:27 | 0:01:29 | |
Yeah, he also made a shed-load of cash. | 0:01:29 | 0:01:31 | |
So good was he that you can still find his face | 0:01:31 | 0:01:33 | |
on a 50 quid note, look. | 0:01:33 | 0:01:34 | |
And, AND also the first letter of his surname | 0:01:34 | 0:01:37 | |
you will find stamped on pretty much every light bulb around the house. | 0:01:37 | 0:01:41 | |
Ladies and gentlemen, we give you... | 0:01:41 | 0:01:43 | |
..James Watt! | 0:01:43 | 0:01:45 | |
All right, boys! | 0:01:45 | 0:01:46 | |
Yes, indeed, and inspired by James Watt's genius, | 0:01:46 | 0:01:49 | |
we'll be coming up with our own genius idea later on. | 0:01:49 | 0:01:52 | |
Yes, we'll be steaming in with a very special kind of challenge. | 0:01:52 | 0:01:56 | |
-Pull the lever! -I haven't put the engine on! | 0:01:56 | 0:01:58 | |
Pull the lever? You idiot! | 0:01:58 | 0:02:00 | |
But now I think it's only fair to find out a little bit | 0:02:00 | 0:02:02 | |
more about said man in wig. | 0:02:02 | 0:02:05 | |
That's me. | 0:02:05 | 0:02:06 | |
James Watt was born in 1736 in Greenock, Scotland. | 0:02:06 | 0:02:10 | |
The story goes that as a boy he was fascinated by the steam | 0:02:10 | 0:02:14 | |
pouring out of a boiling kettle. | 0:02:14 | 0:02:17 | |
When he grew up, he became a mechanical engineer | 0:02:17 | 0:02:19 | |
and started to eagerly explore how steam engines worked. | 0:02:19 | 0:02:23 | |
James Watt's genius was to take the steam engine, | 0:02:26 | 0:02:29 | |
an invention that had been round for many years, and make it | 0:02:29 | 0:02:32 | |
work better and more efficiently than anyone else had managed. | 0:02:32 | 0:02:36 | |
And make himself a shed-load of money in the process. | 0:02:36 | 0:02:39 | |
Watt's engines were the first to power big machines in factories, | 0:02:40 | 0:02:44 | |
paving the way for the Industrial Revolution. | 0:02:44 | 0:02:46 | |
Now, 250 years ago, when Watt was just a young man, | 0:02:48 | 0:02:51 | |
steam engines looked very different to how you might imagine. | 0:02:51 | 0:02:55 | |
The engines back then still needed someone to shovel | 0:02:55 | 0:02:58 | |
the coal, like fireman Hugh here. | 0:02:58 | 0:03:00 | |
But they didn't look as gorgeous as this lovely steam locomotive. | 0:03:00 | 0:03:03 | |
Did they, Dick? WHISTLE TOOTS | 0:03:03 | 0:03:06 | |
Oi! Get down! | 0:03:06 | 0:03:07 | |
Sorry, I was just hooting the whistle. | 0:03:07 | 0:03:09 | |
You are silly, aren't you? | 0:03:11 | 0:03:13 | |
You see, locos like this were still a dream | 0:03:15 | 0:03:17 | |
when Watt was learning his stuff. | 0:03:17 | 0:03:19 | |
This was a long time before steam trains were even invented. | 0:03:19 | 0:03:22 | |
Back then, in the early 1700s, | 0:03:25 | 0:03:27 | |
most steam engines were either too big or too heavy to put on wheels. | 0:03:27 | 0:03:31 | |
I mean, you couldn't even fit one in a decent-sized house. | 0:03:31 | 0:03:33 | |
Just like this. | 0:03:33 | 0:03:35 | |
Meet genius expert Mike Dunn. | 0:03:38 | 0:03:41 | |
He knows everything you need to know about the kind of steam | 0:03:41 | 0:03:43 | |
engines that were around before James Watt came along. | 0:03:43 | 0:03:47 | |
-Hi, Mike. -Hi, Mike. -Hello there. -How are you doing? | 0:03:48 | 0:03:51 | |
It's noisy in here, isn't it? | 0:03:51 | 0:03:53 | |
-It is a bit. -What is this? | 0:03:53 | 0:03:55 | |
This is an example of the first steam engine in the world. | 0:03:55 | 0:04:00 | |
Right. | 0:04:00 | 0:04:01 | |
This is a Newcomen steam engine. | 0:04:01 | 0:04:03 | |
They were used to pump water out of mines | 0:04:03 | 0:04:06 | |
and were invented nearly 25 years before James Watt was even born. | 0:04:06 | 0:04:10 | |
-So, how does it work? -It's like a big kettle. | 0:04:10 | 0:04:13 | |
We boil 400 gallons of water and then we produce lots of steam | 0:04:13 | 0:04:17 | |
from that boiling water which we put into that cylinder. | 0:04:17 | 0:04:21 | |
Once it's in the cylinder, we squirt some cold water in | 0:04:21 | 0:04:25 | |
and we change the steam back to water. | 0:04:25 | 0:04:27 | |
OK, what's its purpose, what does it do? | 0:04:27 | 0:04:30 | |
-Well, if you look up, you can see the great beam at the top? -Yeah. | 0:04:30 | 0:04:34 | |
The other end of that great beam, there's a rod that goes | 0:04:34 | 0:04:37 | |
right the way down into the ground to the mine shaft. | 0:04:37 | 0:04:41 | |
And that pumps the water out of the ground | 0:04:41 | 0:04:43 | |
so the miners can get to the coal. | 0:04:43 | 0:04:46 | |
-Oh, so it's a big water pump? -Oh, OK. | 0:04:46 | 0:04:48 | |
Like all steam engines, | 0:04:48 | 0:04:49 | |
it needs a really hot fire to heat the water in the boiler. | 0:04:49 | 0:04:52 | |
And we're going to make this fire even hotter. | 0:04:52 | 0:04:55 | |
Right, lads, when we open the door, we can get a blowback, | 0:04:57 | 0:05:00 | |
that's flames coming out of the furnace. | 0:05:00 | 0:05:02 | |
So we just have to be a little bit careful. | 0:05:02 | 0:05:04 | |
-Right, we'll stand back then. -That's a good idea. | 0:05:04 | 0:05:06 | |
-Whoa! -Wow, that's hot. | 0:05:10 | 0:05:13 | |
Hand down there. One at the back. | 0:05:13 | 0:05:15 | |
Your body stops still and then do that, | 0:05:15 | 0:05:18 | |
-the shovel stops, and the coal carries on. -OK, got you. | 0:05:18 | 0:05:21 | |
Right, still body, swinging back. | 0:05:22 | 0:05:25 | |
-Swinging back. And...like that? -Good lad! | 0:05:25 | 0:05:29 | |
I can't believe how hot that is. | 0:05:29 | 0:05:32 | |
Oh, sorry, Mike! | 0:05:33 | 0:05:36 | |
-In there like that! -Is that a good one? | 0:05:36 | 0:05:38 | |
That'll do. You need a bit of practice. | 0:05:38 | 0:05:41 | |
How often do you have to re-stoke the fire? | 0:05:41 | 0:05:43 | |
We make up the fire on one side | 0:05:43 | 0:05:45 | |
and then, after about eight minutes, we make up the other side. | 0:05:45 | 0:05:48 | |
-You have to shovel coal in every eight minutes? -Yes. | 0:05:48 | 0:05:51 | |
How much coal do you get through in a day? | 0:05:51 | 0:05:53 | |
These engines work 24 hours. | 0:05:53 | 0:05:55 | |
You're talking two to three tonnes. | 0:05:55 | 0:05:57 | |
And that was the drawback of this type of steam engine. | 0:05:57 | 0:06:00 | |
It used so much coal and wasn't very efficient. | 0:06:00 | 0:06:03 | |
Now, you see, Watt had his first bit of genius inspiration | 0:06:04 | 0:06:07 | |
when he was given a small Newcomen engine to repair. | 0:06:07 | 0:06:11 | |
Yeah, and while he was doing this, he came up with an idea for his | 0:06:11 | 0:06:14 | |
own steam engine that would be even better than the Newcomen engine. | 0:06:14 | 0:06:18 | |
Hang on a minute. Backtrack a bit. | 0:06:18 | 0:06:20 | |
I'm having problems just piecing it all together anyway. | 0:06:20 | 0:06:23 | |
Yeah, me too. How does something as flimsy as steam move big | 0:06:23 | 0:06:27 | |
slabs of metal about like we saw with the steam engine? | 0:06:27 | 0:06:30 | |
Yeah, I know. | 0:06:30 | 0:06:31 | |
If only Fran, our resident genius scientist, was here to tell us... | 0:06:31 | 0:06:34 | |
Hey! | 0:06:37 | 0:06:40 | |
This is Fran. She just loves experimenting... | 0:06:40 | 0:06:42 | |
..to help explain the ideas of our geniuses. | 0:06:44 | 0:06:48 | |
And she's sure to pop up just when you really need her. | 0:06:48 | 0:06:50 | |
Fancy meeting you here. | 0:06:50 | 0:06:52 | |
We're still struggling on how the steam engine works. | 0:06:52 | 0:06:55 | |
I thought you might be because it is quite complicated. | 0:06:55 | 0:06:58 | |
But I've got something that might help. Come with me. | 0:06:58 | 0:07:01 | |
Really weird, isn't it, the way she's always...? | 0:07:02 | 0:07:05 | |
Well, boys, when you heat up water enough, some of that water | 0:07:05 | 0:07:08 | |
turns into a gas, and it's that gas that's steam. | 0:07:08 | 0:07:11 | |
And steam, just like any gas, wants to spread out as much as it can | 0:07:11 | 0:07:15 | |
so it pushes on all the stuff around us. | 0:07:15 | 0:07:17 | |
And that's all a steam engine does. It puts that push to good use. | 0:07:17 | 0:07:21 | |
-So, what's this then? -This is my model of a steam engine. | 0:07:21 | 0:07:24 | |
Doesn't look like a steam engine. | 0:07:24 | 0:07:26 | |
Well, we've got a sealed chamber at the bottom | 0:07:26 | 0:07:28 | |
and a movable plunger at the top. | 0:07:28 | 0:07:30 | |
-So, this plunger's like the piston or something? -Yeah, exactly! | 0:07:30 | 0:07:33 | |
And we've got a little bit of water in the bottom. | 0:07:33 | 0:07:36 | |
I'll heat up that water. Some of it will turn into steam. | 0:07:36 | 0:07:39 | |
And let's just see what happens. | 0:07:39 | 0:07:41 | |
Goggles on. | 0:07:41 | 0:07:43 | |
-Wa-hey! Look at that. -Good work! | 0:07:49 | 0:07:52 | |
'When the heated water turns to steam, it pushes the plunger up.' | 0:07:52 | 0:07:56 | |
'And when the steam cools and turns back to water, | 0:07:58 | 0:08:00 | |
'the plunger returns to where it was.' | 0:08:00 | 0:08:03 | |
There it goes! Look! | 0:08:03 | 0:08:05 | |
Yes, it's going down! | 0:08:05 | 0:08:07 | |
All right, Fran, I understand how steam | 0:08:07 | 0:08:09 | |
is making a little plastic plunger go up and down. | 0:08:09 | 0:08:12 | |
But surely it's not the same principle that moves | 0:08:12 | 0:08:15 | |
a steam engine made out of massive bits of metal? | 0:08:15 | 0:08:18 | |
Yeah, it is. | 0:08:18 | 0:08:19 | |
And the same pushes and pulls can move something as strong as metal. | 0:08:19 | 0:08:22 | |
-And I've got something to prove it. -Bonus! | 0:08:22 | 0:08:25 | |
Prove it! Go on, then. Prove it. | 0:08:25 | 0:08:28 | |
So, over here, | 0:08:28 | 0:08:30 | |
I have got a can that's got a little bit of water in it. | 0:08:30 | 0:08:32 | |
And that water is boiling away and producing lots of steam. | 0:08:32 | 0:08:36 | |
But in a moment, I'm going to seal that can | 0:08:36 | 0:08:38 | |
and then cool it really quickly. | 0:08:38 | 0:08:40 | |
Ah, right, so when you cool the steam really quickly | 0:08:40 | 0:08:43 | |
it will turn back into water and cause some kind of pushing motion. | 0:08:43 | 0:08:46 | |
Yeah, just like that plunger on that model steam engine. | 0:08:46 | 0:08:49 | |
Fran's an expert. This is not something to be messed with at home. | 0:08:49 | 0:08:53 | |
OK, I'm going to dunk it in this iced water here. | 0:08:53 | 0:08:57 | |
Let's cool it down as quickly as possible. | 0:08:57 | 0:08:59 | |
So dump that ice on it. | 0:08:59 | 0:09:00 | |
-More ice. More ice, more ice! -Pop it on top. | 0:09:00 | 0:09:04 | |
-Arrgh! -Brilliant! | 0:09:04 | 0:09:06 | |
Look at that! That's amazing! | 0:09:06 | 0:09:09 | |
You have proved it, Fran! | 0:09:09 | 0:09:10 | |
'That sudden cooling of the can turned the steam | 0:09:13 | 0:09:16 | |
back into water really quickly | 0:09:16 | 0:09:19 | |
creating a force strong enough to crush metal. | 0:09:19 | 0:09:24 | |
Later, we learn all about horsepower, | 0:09:24 | 0:09:27 | |
another of Watt's genius ideas. | 0:09:27 | 0:09:30 | |
And we get stuck into some serious engineering for our genius idea. | 0:09:32 | 0:09:36 | |
Right, that's it! Argh! | 0:09:36 | 0:09:39 | |
But back to James Watt and his genius ideas | 0:09:39 | 0:09:42 | |
for improving steam engines. | 0:09:42 | 0:09:43 | |
As we've seen, these engines were a new way of getting | 0:09:43 | 0:09:46 | |
lots of power 250 years ago. | 0:09:46 | 0:09:49 | |
But they used an incredible amount of coal as fuel. | 0:09:49 | 0:09:52 | |
That wasted lots of energy. | 0:09:52 | 0:09:54 | |
It's a bit like having all the radiators on in your house | 0:09:54 | 0:09:57 | |
with the windows wide open. | 0:09:57 | 0:09:58 | |
Aye, they were just throwing money away. | 0:10:00 | 0:10:03 | |
Watt reckoned he could do a lot better. | 0:10:03 | 0:10:05 | |
So he invented his own steam engine. | 0:10:05 | 0:10:08 | |
And if you want to see what he came up with | 0:10:08 | 0:10:11 | |
then there's no better place than this. | 0:10:11 | 0:10:13 | |
The Crofton Pumping Station in Wiltshire. | 0:10:13 | 0:10:17 | |
Here we are, and there's the pumping station over there. | 0:10:17 | 0:10:20 | |
But you're probably wondering, what's it all for? | 0:10:20 | 0:10:22 | |
Back in Watt's day, this was a very important place. | 0:10:22 | 0:10:24 | |
And the fact it's bang next to this canal, that's no accident as well. | 0:10:24 | 0:10:28 | |
Here's another genius helper to tell us why. | 0:10:31 | 0:10:33 | |
Meet Watt steam engine expert Jon Willis. | 0:10:33 | 0:10:36 | |
Hello, Jon. Can you tell us what the pumping station does? | 0:10:38 | 0:10:41 | |
Every time a boat comes down here it uses an awful lot of water | 0:10:41 | 0:10:44 | |
and that water has to be replaced. | 0:10:44 | 0:10:45 | |
So the pump pumps it back up to the top of the hill. | 0:10:45 | 0:10:48 | |
All right, OK, so because gravity takes water down a hill, | 0:10:48 | 0:10:50 | |
the pumping station pumps it back up so the boat can carry on? | 0:10:50 | 0:10:54 | |
-Yes, that's right. -Can we see inside? -Certainly. | 0:10:54 | 0:10:57 | |
All right, after you. Don't fall in! | 0:10:57 | 0:10:59 | |
Watt's engines were a lot more fuel efficient, | 0:10:59 | 0:11:02 | |
but we've still got to shovel a load of coal. | 0:11:02 | 0:11:05 | |
Doing it for the boys, aren't you? | 0:11:06 | 0:11:09 | |
Look at that lovely Lancashire boiler! | 0:11:09 | 0:11:12 | |
-You having a good day, mate? -Yeah, good stuff, all right. | 0:11:12 | 0:11:15 | |
Know what I mean? | 0:11:17 | 0:11:19 | |
'This boiler holds an astonishing 18,000 litres of water.' | 0:11:19 | 0:11:24 | |
HE SCREAMS | 0:11:24 | 0:11:26 | |
'And that can make a lot of steam. | 0:11:26 | 0:11:28 | |
'It's very hot! But, hey, who cares, we're dancing!' | 0:11:28 | 0:11:33 | |
Argh! | 0:11:39 | 0:11:41 | |
That means one thing. Kettle's brewed. | 0:11:41 | 0:11:45 | |
It's time for a tea! Come on. | 0:11:45 | 0:11:46 | |
I didn't expect that. | 0:11:46 | 0:11:48 | |
But you do need a lot of steam for this piece of Watt genius. | 0:11:50 | 0:11:54 | |
Here we are at the top of the cylinder, | 0:11:54 | 0:11:56 | |
which is a great long tube. | 0:11:56 | 0:11:57 | |
It's about two metres long and inside it is a big piston. | 0:11:57 | 0:12:01 | |
The steam that we've been producing downstairs | 0:12:01 | 0:12:03 | |
makes this go up and down inside the cylinder. | 0:12:03 | 0:12:05 | |
-That's right. -And pumps the water out. | 0:12:05 | 0:12:08 | |
How do you control the steam that comes in? | 0:12:08 | 0:12:10 | |
The steam comes from the boiler. | 0:12:10 | 0:12:12 | |
It comes under the floor and comes up through this valve. | 0:12:12 | 0:12:15 | |
-And we're just about ready to start the engine. -Oh, OK. | 0:12:15 | 0:12:18 | |
I just need to ask the driver. Driver, are you ready? | 0:12:18 | 0:12:21 | |
Open number one stop valve, please. | 0:12:21 | 0:12:24 | |
Twelve turns anti-clockwise. | 0:12:24 | 0:12:26 | |
Here we go, driver! One...two...three... | 0:12:26 | 0:12:33 | |
He can't actually count to 12. This might be difficult. | 0:12:33 | 0:12:36 | |
..five, six, seven, eight, nine, ten, eleven, twelve. | 0:12:36 | 0:12:41 | |
Do I have to say anything? | 0:12:41 | 0:12:43 | |
Tell the driver that you've opened it. | 0:12:43 | 0:12:45 | |
-Number one, stop valve open. -DRIVER: -Thank you. | 0:12:45 | 0:12:49 | |
No problem. Sounds nice, doesn't she? | 0:12:49 | 0:12:51 | |
-Doesn't she sound lovely! -Ah! | 0:12:51 | 0:12:53 | |
-Look at that! -Big bit of kit. -Hot steam! | 0:12:53 | 0:12:58 | |
This is great British engineering at its best, isn't it? | 0:12:58 | 0:13:01 | |
Absolutely. And this is 200 years old and it's still working. | 0:13:01 | 0:13:04 | |
Still working perfectly. | 0:13:04 | 0:13:06 | |
'Yes, these pistons and cylinder rods need to be perfectly engineered | 0:13:06 | 0:13:10 | |
'because they've got to work this six-tonne iron beam above.' | 0:13:10 | 0:13:14 | |
So we've already seen the pistons | 0:13:14 | 0:13:16 | |
working down that end, moving it all. | 0:13:16 | 0:13:18 | |
But what happens down that end? | 0:13:18 | 0:13:20 | |
That end has the pump on. The pump which pumps the water. | 0:13:20 | 0:13:23 | |
But the real genius of this place is round here. | 0:13:23 | 0:13:26 | |
What we're looking at here is James Watt's separate condenser - | 0:13:26 | 0:13:29 | |
his most important invention. | 0:13:29 | 0:13:31 | |
The original engine by Thomas Newcomen, | 0:13:31 | 0:13:34 | |
you had to heat up the cylinder and cool it down, | 0:13:34 | 0:13:37 | |
every time the engine works, every stroke, | 0:13:37 | 0:13:40 | |
heat it up, cool down, which is incredibly inefficient. | 0:13:40 | 0:13:43 | |
And what James Watt did, he said, "I'll leave that bit hot | 0:13:43 | 0:13:46 | |
"and I'll put the cold bit in here." | 0:13:46 | 0:13:48 | |
So his condenser was actually under the water in here. | 0:13:48 | 0:13:51 | |
-OK, so the engine stays hot all the time? -That's right. | 0:13:51 | 0:13:54 | |
Saving money! Genius. | 0:13:54 | 0:13:55 | |
So even though it doesn't look much, this is his real genius. | 0:13:55 | 0:13:59 | |
In fact, Watt's brilliant separate condenser | 0:13:59 | 0:14:02 | |
meant his steam engines used 75% less coal than other engines. | 0:14:02 | 0:14:07 | |
His engines were also more powerful. | 0:14:07 | 0:14:11 | |
Together, that meant they could be used to power | 0:14:11 | 0:14:14 | |
all sorts of different machines in factories across the world. Genius! | 0:14:14 | 0:14:18 | |
Aye, it was pretty clever, wasn't it? | 0:14:18 | 0:14:20 | |
And there it is. Look, you can see what the engine is actually doing. | 0:14:21 | 0:14:24 | |
Every stroke of the engine pumps out one tonne of water into this channel | 0:14:24 | 0:14:29 | |
which sends it all the way along there | 0:14:29 | 0:14:31 | |
up to the hill and eventually it joins the canal. | 0:14:31 | 0:14:34 | |
Which means the canal never runs out of water. | 0:14:34 | 0:14:36 | |
Thanks to James Watt we can now take a ride on a canal boat. | 0:14:39 | 0:14:42 | |
I'm going to be the captain and you, you silly little man, | 0:14:42 | 0:14:45 | |
are going to open the lock gates. Enjoy. | 0:14:45 | 0:14:48 | |
But we've never done this before. I don't know what to do. | 0:14:48 | 0:14:51 | |
Er... Ah. | 0:14:51 | 0:14:54 | |
Takes him ages, He's only got little legs. Faster! | 0:14:54 | 0:14:58 | |
TRAIN TOOTS Oi, it's all kicking off. | 0:14:58 | 0:15:01 | |
'If only Watt had invented a machine to open lock gates.' | 0:15:01 | 0:15:04 | |
We ain't got all day. We're nearly there, look. | 0:15:04 | 0:15:07 | |
-Right. -It's hard work this. | 0:15:09 | 0:15:13 | |
Oh, shut up! | 0:15:13 | 0:15:14 | |
HE GRUNTS | 0:15:14 | 0:15:17 | |
Having a nice day out. Close them then, come on. | 0:15:20 | 0:15:23 | |
He's going to get such a slap. | 0:15:23 | 0:15:25 | |
'Now, it's not just canal pumping stations | 0:15:27 | 0:15:30 | |
'that steam is very useful for.' | 0:15:30 | 0:15:32 | |
-It's the Genius Top Five. -Five. | 0:15:32 | 0:15:35 | |
The steam train, still going strong 200 years after it was invented. | 0:15:35 | 0:15:39 | |
Four. The steam cooker. A great way to cook Chinese dumplings. | 0:15:39 | 0:15:44 | |
Hmm. Yum, yum! | 0:15:44 | 0:15:45 | |
Three. Steam baths. | 0:15:45 | 0:15:47 | |
The Romans loved them and they're still being used today. | 0:15:47 | 0:15:51 | |
Two. The paddle steamer. | 0:15:51 | 0:15:53 | |
A lovely way to take a trip down a river. | 0:15:53 | 0:15:56 | |
One. The steam robot. | 0:15:56 | 0:15:58 | |
Yes, people actually build these! | 0:15:58 | 0:16:01 | |
-ROBOTS: -Ex-STEAM-inate! Ha-ha! | 0:16:01 | 0:16:03 | |
We've found out that 250 years ago James Watt invented a steam engine | 0:16:03 | 0:16:08 | |
that was much better than anything anyone else had come up with. | 0:16:08 | 0:16:12 | |
Later in the show, we'll be coming up with our own genius challenge | 0:16:12 | 0:16:16 | |
inspired by the great man. | 0:16:16 | 0:16:18 | |
But Watt's genius was about more than just clever machines. | 0:16:18 | 0:16:21 | |
You see, even though Watt had invented | 0:16:23 | 0:16:25 | |
this amazing new steam engine | 0:16:25 | 0:16:26 | |
he had to convince other people that it was worth buying. | 0:16:26 | 0:16:29 | |
He'd proved that his steam engine was better than other steam engines. | 0:16:29 | 0:16:33 | |
But was this form of power cheaper than other options | 0:16:33 | 0:16:36 | |
-available at the time? -Like the power of the horse. | 0:16:36 | 0:16:41 | |
-All right, Billy. -Right, on we get. | 0:16:41 | 0:16:43 | |
Back in Watt's time, horses did a lot of the jobs that | 0:16:44 | 0:16:47 | |
machines do for us today. | 0:16:47 | 0:16:49 | |
So Watt had to try and prove that his steam engines | 0:16:49 | 0:16:51 | |
could do everything that a horse could. | 0:16:51 | 0:16:54 | |
So he needed a scientific way of working out exactly | 0:16:54 | 0:16:57 | |
the amount of work a horse could do in any given period of time. | 0:16:57 | 0:17:00 | |
His answer was to come up with a measurement of power | 0:17:00 | 0:17:03 | |
that we still use today - horsepower. | 0:17:03 | 0:17:05 | |
-Come on then, Billy! -Giddy up! -Giddy up! | 0:17:05 | 0:17:09 | |
-Are you having a nice time? -It's quite slow, isn't it? | 0:17:09 | 0:17:12 | |
# Why do only fools and horses work? # | 0:17:12 | 0:17:15 | |
In those days, one of the jobs horses did | 0:17:15 | 0:17:17 | |
was to lift coal out of coal mines. | 0:17:17 | 0:17:19 | |
Watt worked out that your average horse could shift 150 kilos of coal | 0:17:19 | 0:17:24 | |
up a mine shaft a distance of 30 metres over one minute. | 0:17:24 | 0:17:28 | |
He called that one horsepower. | 0:17:28 | 0:17:30 | |
So once our horse Billy here is moving us along, | 0:17:32 | 0:17:35 | |
he's using James Watt's measurement of power, horsepower. | 0:17:35 | 0:17:38 | |
But because it's a slow walking speed and not uphill, | 0:17:38 | 0:17:42 | |
I reckon Billy here is only using half of one horsepower. | 0:17:42 | 0:17:46 | |
It's, er, not very fast, is it? | 0:17:46 | 0:17:49 | |
-Stop, Billy. Stop, stop, stop. -For goodness' sake, stop it. | 0:17:49 | 0:17:53 | |
I think we need something with a lot more horsepower. | 0:17:53 | 0:17:57 | |
I know what you're saying Where are we going? Monte Carlo? | 0:17:58 | 0:18:02 | |
-Brands Hatch? -No. Bedfordshire. | 0:18:02 | 0:18:05 | |
I love Bedfordshire! | 0:18:07 | 0:18:10 | |
Welcome to Bedford Autodrome. We still use horsepower today | 0:18:12 | 0:18:15 | |
to measure the performance of any engine, | 0:18:15 | 0:18:17 | |
whether it's in a lawn mower or racing cars like these. | 0:18:17 | 0:18:21 | |
If you want a lot of horsepower then you need something like this! | 0:18:21 | 0:18:26 | |
Come on! | 0:18:26 | 0:18:27 | |
This Jaguar racing car can get to a top speed of 167 miles per hour. | 0:18:29 | 0:18:35 | |
Yeah, that's cos it's got an incredibly powerful engine. | 0:18:35 | 0:18:39 | |
265 horsepower! | 0:18:39 | 0:18:42 | |
'So what does all that horsepower feel like? | 0:18:43 | 0:18:47 | |
'There's only one way to find out.' | 0:18:47 | 0:18:49 | |
Oh, my... | 0:18:50 | 0:18:54 | |
HE SQUEALS AND SHRIEKS | 0:18:54 | 0:18:56 | |
HE SQUAWKS | 0:19:00 | 0:19:02 | |
'This is terrifyingly fast. These engines are way more powerful | 0:19:02 | 0:19:05 | |
'than anything from Watt's day.' | 0:19:05 | 0:19:07 | |
'As we literally scream round this track at nearly 140 miles per hour, | 0:19:14 | 0:19:19 | |
'the force against my body is incredible.' | 0:19:19 | 0:19:22 | |
'After three laps, we've taken just about as much as we can handle.' | 0:19:31 | 0:19:35 | |
Seriously, that was one of the maddest things I've ever done. | 0:19:40 | 0:19:44 | |
It blows any roller coaster out of the water, that. | 0:19:44 | 0:19:48 | |
It was just the speed, wasn't it? | 0:19:48 | 0:19:51 | |
The speed! It was so fast! | 0:19:51 | 0:19:54 | |
It was so fast! | 0:19:54 | 0:19:58 | |
It's not just engine power where our genius James Watt left his mark. | 0:19:59 | 0:20:03 | |
Oh, no. We use his very name, Watt, | 0:20:03 | 0:20:05 | |
as a way of measuring electrical power. | 0:20:05 | 0:20:08 | |
For example the bulb inside here, it's a 60 watt. | 0:20:08 | 0:20:12 | |
And our cameraman Pat is using a lamp there | 0:20:12 | 0:20:15 | |
that's 40 watts of power | 0:20:15 | 0:20:17 | |
so that you can see us. | 0:20:17 | 0:20:18 | |
So there you go. When it comes to measuring power, Watt is your man. | 0:20:18 | 0:20:22 | |
-Genius! -WATT?! | 0:20:22 | 0:20:24 | |
Inventing new ways of measuring how powerful machines were, | 0:20:24 | 0:20:28 | |
helped James Watt sell lots of his steam engines. | 0:20:28 | 0:20:30 | |
That made him a lot of money. | 0:20:30 | 0:20:32 | |
But some people have a knack for losing money. | 0:20:32 | 0:20:35 | |
It's the Not So Genius Idea. | 0:20:36 | 0:20:39 | |
In 2009, an Israeli woman decided to surprise her mum by buying | 0:20:39 | 0:20:44 | |
her a new mattress for her bed. | 0:20:44 | 0:20:46 | |
She threw out the old mattress, but then found out afterwards | 0:20:46 | 0:20:50 | |
that her mum had hidden 1 million inside it. | 0:20:50 | 0:20:54 | |
That's about £700,000. | 0:20:54 | 0:20:57 | |
She went back to the rubbish tip to look for the old mattress. | 0:20:57 | 0:21:00 | |
But it had gone, along with all that lovely cash. | 0:21:00 | 0:21:03 | |
A not so genius surprise present! | 0:21:03 | 0:21:05 | |
Oh, Mamma mia! | 0:21:05 | 0:21:08 | |
So Watt invented brilliant steam engines | 0:21:11 | 0:21:13 | |
and also horsepower as his way of measuring the power of his engines. | 0:21:13 | 0:21:17 | |
But for our genius idea I think we need to use steam engines | 0:21:17 | 0:21:20 | |
to increase our own horsepower. | 0:21:20 | 0:21:22 | |
Yeah, yeah. I could strap a steam engine to my back? | 0:21:22 | 0:21:25 | |
No, no. Too hot. | 0:21:25 | 0:21:27 | |
Too dangerous. It'll burn you, won't it? | 0:21:27 | 0:21:29 | |
I've got it! Wouldn't it be amazing | 0:21:29 | 0:21:33 | |
if there was a steam workshop behind these concertina doors. | 0:21:33 | 0:21:35 | |
Oh, yes. | 0:21:35 | 0:21:37 | |
-HE GRUNTS -Oh, they're heavy. | 0:21:38 | 0:21:40 | |
Meet genius engine builder Grant Cooper. He's going to help us | 0:21:42 | 0:21:47 | |
turn our genius idea into reality. | 0:21:47 | 0:21:49 | |
-Hello, Grant, how are you doing? -Not too bad. | 0:21:50 | 0:21:52 | |
We've come up with this idea that we want to try | 0:21:52 | 0:21:55 | |
and increase our horsepower with the help of a steam engine. | 0:21:55 | 0:21:59 | |
But how much horsepower can we produce individually? | 0:21:59 | 0:22:02 | |
A single person can produce about a quarter of a horsepower. | 0:22:02 | 0:22:05 | |
OK, so quarter for me, quarter for you. | 0:22:05 | 0:22:07 | |
-Together we could produce one half of a horsepower? -Exactly. | 0:22:07 | 0:22:11 | |
This is like a wonderland of bits of bobs. It's incredible. | 0:22:11 | 0:22:14 | |
Have you got anything here | 0:22:14 | 0:22:15 | |
that we could use that would increase our horsepower? | 0:22:15 | 0:22:18 | |
Well, we've been working on a project a while back. | 0:22:18 | 0:22:21 | |
I think we used a tandem bike in that. | 0:22:21 | 0:22:23 | |
-So if we have a search around, I'm sure we can dig one out. -Cool! | 0:22:23 | 0:22:26 | |
A tandem bike, right. So if we got on a tandem bike | 0:22:26 | 0:22:28 | |
and pedalled really, really fast as well, | 0:22:28 | 0:22:31 | |
we could possibly produce one horsepower? | 0:22:31 | 0:22:33 | |
I think it's certainly possible, | 0:22:33 | 0:22:36 | |
-but there's only one to find that out. -Find that tandem. | 0:22:36 | 0:22:39 | |
So our genius idea | 0:22:39 | 0:22:40 | |
is to customise a tandem, a bike built for two people. | 0:22:40 | 0:22:44 | |
We're going to stick a steam engine on the back. | 0:22:44 | 0:22:47 | |
With the steam engine boosting our pedalling, | 0:22:47 | 0:22:49 | |
our horsepower should be increased. | 0:22:49 | 0:22:53 | |
Let's find out just how fast we can go. | 0:22:53 | 0:22:55 | |
-There we are, tandem. -Random tandem. | 0:22:59 | 0:23:02 | |
-Random tandem. -What's that? -I don't know. | 0:23:02 | 0:23:06 | |
'Because our steam engine will add weight to | 0:23:06 | 0:23:08 | |
'the back of the tandem, our first job is to put stabilisers on.' | 0:23:08 | 0:23:11 | |
Right! That's it! Arrgh! | 0:23:11 | 0:23:14 | |
'Next, the boiler.' | 0:23:14 | 0:23:16 | |
-That's amazing. -Lovely. | 0:23:16 | 0:23:18 | |
That needs to fit on just there. | 0:23:18 | 0:23:20 | |
Fiddly. Very fiddly. | 0:23:20 | 0:23:23 | |
Use your fingers first. Get it in there. | 0:23:23 | 0:23:25 | |
And then, the engine. | 0:23:25 | 0:23:27 | |
-Look at that. -Ah, pistons! -Look at that! | 0:23:27 | 0:23:30 | |
So the steam goes in, pumps the pistons, | 0:23:30 | 0:23:32 | |
which turns the big wheel at the back. | 0:23:32 | 0:23:34 | |
And that wheel is attached to a bike chain, | 0:23:34 | 0:23:37 | |
-which is attached to the pedals. -Exactly. | 0:23:37 | 0:23:40 | |
-Grant, this is genius. -I wouldn't undo that one. | 0:23:40 | 0:23:43 | |
-No. OK, I won't do that! -Those other ones are OK! | 0:23:43 | 0:23:47 | |
Very nice. | 0:23:47 | 0:23:48 | |
'Now we need to check whether the engine actually works.' | 0:23:48 | 0:23:51 | |
If you just stand back, watch the pedals. | 0:23:51 | 0:23:54 | |
-Standing back. -Look at that! -Wa-hey! Brilliant! | 0:23:54 | 0:23:59 | |
'Just one snag. There'll be a lot of heat pouring off the back | 0:24:02 | 0:24:05 | |
'of that bike very close to Dick.' | 0:24:05 | 0:24:08 | |
So, basically, I'm going to get a very hot bottom! | 0:24:08 | 0:24:11 | |
'To protect Dick's tender backside from the hot boiler, | 0:24:13 | 0:24:16 | |
'we're making a special shield to put on the back of the bike.' | 0:24:16 | 0:24:20 | |
A bit wonky! But it adds character, doesn't it? | 0:24:20 | 0:24:23 | |
Do you need a hand? | 0:24:26 | 0:24:28 | |
Silly man. | 0:24:31 | 0:24:33 | |
There we go, all done! | 0:24:33 | 0:24:35 | |
One genius, customised, tandem bike with steam booster! | 0:24:35 | 0:24:38 | |
-And a whistle. -And a whistle. | 0:24:38 | 0:24:41 | |
One last thing. Let's take it on the road! | 0:24:41 | 0:24:43 | |
Come on! | 0:24:43 | 0:24:45 | |
Can't get me leg over! | 0:24:45 | 0:24:47 | |
To test our steam tandem, we've got a special race track | 0:24:47 | 0:24:50 | |
set up on this airfield. | 0:24:50 | 0:24:52 | |
We're going head to head with Pepe D'Anna. | 0:24:52 | 0:24:55 | |
Pepe? Who's this Pepe then? | 0:24:55 | 0:24:57 | |
Is he some kind of like a Italian Formula One driver? | 0:24:57 | 0:25:00 | |
Not exactly. | 0:25:00 | 0:25:01 | |
Pepe's from Wolverhampton. | 0:25:04 | 0:25:05 | |
He's brought along this brilliant little steam lorry | 0:25:05 | 0:25:08 | |
that he's lovingly built from scratch. | 0:25:08 | 0:25:10 | |
So, it's his lorry against our steam tandem. | 0:25:10 | 0:25:14 | |
What's the name from, Pepe? Where are you from? | 0:25:14 | 0:25:17 | |
-Sicily, originally, the family. -Oh, OK. | 0:25:17 | 0:25:20 | |
-It's Giuseppe, but Pepe's easier to say. -All right. Dick. | 0:25:20 | 0:25:23 | |
That's even easier! Dom. Just as easy. | 0:25:23 | 0:25:25 | |
Joking aside, Pepe, you're good at building, but are you good at racing? | 0:25:25 | 0:25:29 | |
There's only one way to find out, Pepe! | 0:25:29 | 0:25:32 | |
-Come on! -The proof is in the pudding. -Come on! Let's have it! | 0:25:32 | 0:25:35 | |
Let's have some pudding. | 0:25:35 | 0:25:37 | |
So, the challenge is to see whether, | 0:25:37 | 0:25:39 | |
with a little bit extra horsepower from our steam engine, | 0:25:39 | 0:25:42 | |
our tandem bike can beat Pepe's miniature steam lorry. | 0:25:42 | 0:25:45 | |
Get ready, Lee. | 0:25:47 | 0:25:48 | |
STEAM WHISTLES | 0:25:48 | 0:25:50 | |
Welcome to Steam Derby Classic. | 0:25:50 | 0:25:52 | |
Dick and Dom versus Pepe. The race is on. | 0:25:52 | 0:25:56 | |
Twiddling some knobs from Pepe. Dick was ringing the bell. | 0:25:56 | 0:26:00 | |
MUSIC: "The Chain" By Fleetwood Mac | 0:26:00 | 0:26:03 | |
And they're off. The race is on. | 0:26:03 | 0:26:05 | |
Pepe storming right into the lead there. | 0:26:05 | 0:26:07 | |
-He's beating us. -He is beating you. A pathetic start by Dick and Dom. | 0:26:07 | 0:26:12 | |
And Pepe, even though he's got steam in his face, | 0:26:12 | 0:26:14 | |
is concentrating on this race. | 0:26:14 | 0:26:16 | |
Why aren't we winning? Have you pulled the lever? | 0:26:18 | 0:26:21 | |
-I haven't put the engine on! -Pull it. You idiot! | 0:26:21 | 0:26:23 | |
-Pull the lever! Is it working? -No! | 0:26:23 | 0:26:26 | |
Go! | 0:26:26 | 0:26:28 | |
They're pulling the lever now, and we're in action. | 0:26:28 | 0:26:31 | |
How will they close the gap? | 0:26:31 | 0:26:32 | |
Clearly this is Pepe's race, he's winning all the way. | 0:26:32 | 0:26:36 | |
Look how fast we're going! | 0:26:36 | 0:26:38 | |
Dick doing his usual laughing, thinking that's going to help him. | 0:26:38 | 0:26:41 | |
Look at the size of that gap. | 0:26:41 | 0:26:42 | |
But no! Hang on, the steam engine's kicked in. | 0:26:42 | 0:26:46 | |
They could win, it looks like they might even take it from Pepe. | 0:26:46 | 0:26:49 | |
The laughter's helping. | 0:26:49 | 0:26:51 | |
They're all over the place. Who won the race? I can't tell. | 0:26:51 | 0:26:54 | |
It's too close to call. Let's have a look at the photo. | 0:26:54 | 0:26:57 | |
Pipped on the line by Pepe! Congratulations. | 0:26:57 | 0:27:01 | |
Another 20 yards and I would have run out of steam. | 0:27:01 | 0:27:04 | |
Well done, Pepe. Pepe was leading the field, | 0:27:04 | 0:27:08 | |
-really far in front of us. -He didn't press the silly switch. | 0:27:08 | 0:27:11 | |
Didn't put the steam on, did I? And when the steam started, | 0:27:11 | 0:27:14 | |
it went so fast I couldn't even pedal any more. | 0:27:14 | 0:27:16 | |
So I had me legs off it. I wasn't doing anything! | 0:27:16 | 0:27:18 | |
That was an amazing experience. James Watt, you are just brilliant! | 0:27:20 | 0:27:24 | |
Yeah, your incredible steam engines. | 0:27:24 | 0:27:26 | |
You invented horsepower! | 0:27:26 | 0:27:28 | |
-True, true. -Your name on a light bulb. | 0:27:28 | 0:27:30 | |
Your face on a £50 note. | 0:27:30 | 0:27:33 | |
James Watt, you are an absolute genius! | 0:27:33 | 0:27:37 | |
Too kind, boys. Too kind! | 0:27:37 | 0:27:39 | |
ARGH! | 0:27:43 | 0:27:44 | |
ARGH! | 0:27:46 | 0:27:48 | |
LAUGHTER | 0:27:48 | 0:27:50 | |
-Bogies! -Awwww! | 0:27:50 | 0:27:53 | |
It went right through me. | 0:27:58 | 0:28:00 | |
-Don't wobble it. -I'm not doing anything. -Just stand still then. | 0:28:00 | 0:28:03 | |
Oi! Oi! ZAPPING | 0:28:03 | 0:28:05 | |
HE LAUGHS | 0:28:05 | 0:28:06 |