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APPLAUSE | 0:00:23 | 0:00:25 | |
CHEERS AND WHISTLING | 0:00:25 | 0:00:27 | |
Good evening, good evening, good evening, good evening, good evening | 0:00:31 | 0:00:36 | |
and welcome to QI, where tonight's show is completely and utterly | 0:00:36 | 0:00:41 | |
incomprehensible. | 0:00:41 | 0:00:43 | |
Venturing into the unknown with me tonight are what's his name... | 0:00:43 | 0:00:48 | |
APPLAUSE AND CHEERING | 0:00:48 | 0:00:49 | |
And oh, you know... | 0:00:51 | 0:00:55 | |
APPLAUSE AND CHEERING | 0:00:55 | 0:00:57 | |
And, oh, wait, now, don't tell me... | 0:01:00 | 0:01:03 | |
APPLAUSE AND CHEERING | 0:01:03 | 0:01:06 | |
And finally... | 0:01:09 | 0:01:11 | |
No, I've never seen him before in my life. | 0:01:11 | 0:01:14 | |
APPLAUSE AND CHEERING | 0:01:14 | 0:01:15 | |
Now... | 0:01:17 | 0:01:19 | |
Our buzzers tonight are no less perplexing than our questions. | 0:01:20 | 0:01:24 | |
Sue goes... | 0:01:24 | 0:01:26 | |
BABY: Doo-di-doo da-da | 0:01:26 | 0:01:29 | |
That's eleven types of wrong just there. | 0:01:29 | 0:01:31 | |
-Brian goes... -ELECTRONIC SWOOSH | 0:01:32 | 0:01:36 | |
Rrrross goes... | 0:01:36 | 0:01:37 | |
ELECTRONIC TWITTERING | 0:01:37 | 0:01:40 | |
Alan goes... | 0:01:43 | 0:01:44 | |
ALAN'S VOICE OVERLAPPING ITSELF | 0:01:44 | 0:01:48 | |
'..dirty old bag.' | 0:01:48 | 0:01:49 | |
-Wow. -Is that your internal dialogue? -I think so. | 0:01:51 | 0:01:54 | |
I don't know how they got that. | 0:01:54 | 0:01:56 | |
Now, don't forget, in this series we have the Nobody Knows joker | 0:01:56 | 0:02:00 | |
FANFARE 'Nobody knows!' | 0:02:00 | 0:02:02 | |
There are some questions to which no-one knows the answer | 0:02:02 | 0:02:05 | |
and if you think the question I ask as no known, authoritative answer, | 0:02:05 | 0:02:09 | |
then play your Nobody Knows joker for extra points. | 0:02:09 | 0:02:13 | |
Now, let's start with something that's not even in the same language. | 0:02:13 | 0:02:16 | |
Listen to this and tell me what it means. | 0:02:16 | 0:02:20 | |
SQUEAKING | 0:02:20 | 0:02:22 | |
-SUE LAUGHS That's a rodent. -That's a rodent, good. | 0:02:23 | 0:02:27 | |
-Can you narrow it down? -Is that the squeaky door to his little house? | 0:02:27 | 0:02:31 | |
-No. -He's asking for some oil. | 0:02:31 | 0:02:33 | |
The astonishing thing is we do know what that means, in fact. | 0:02:33 | 0:02:36 | |
I can vouch for this. There are people who study this. | 0:02:36 | 0:02:40 | |
My director on one of my documentaries got a PhD from Oxford | 0:02:40 | 0:02:43 | |
studying frog communication | 0:02:43 | 0:02:45 | |
-and he sat... -Is that French? | 0:02:45 | 0:02:48 | |
Hey, no. Stop it. Sorry. | 0:02:49 | 0:02:52 | |
He sat there for three years in the Outback somewhere | 0:02:52 | 0:02:55 | |
-and he discerned about three words... -Yeah. -..which I think were... | 0:02:55 | 0:03:00 | |
-Ribbit! -Yeah... -You are absolutely right, Brian. | 0:03:00 | 0:03:04 | |
There are zoologists who try to understand the communication of various species. | 0:03:04 | 0:03:09 | |
-Do you know what this species is? -The gopher. -It is a gopher. | 0:03:09 | 0:03:13 | |
-A prairie dog. -A prairie dog, yeah. | 0:03:13 | 0:03:15 | |
It's also known as a ground squirrel. It's a type of squirrel. | 0:03:15 | 0:03:19 | |
Isn't ground squirrel a condiment? | 0:03:19 | 0:03:21 | |
A little ground squirrel, madam? | 0:03:23 | 0:03:26 | |
-Erm... Is it... -I tell you what, he's only making that face | 0:03:29 | 0:03:32 | |
because he's got Phillip Schofield's hand up his bum. | 0:03:32 | 0:03:35 | |
Oh, that takes me back a bit. | 0:03:36 | 0:03:38 | |
-Is that what the squeaking noise is? -Oh! | 0:03:39 | 0:03:42 | |
-No, when I say that takes me back a bit... -Not you as well? | 0:03:43 | 0:03:46 | |
-I don't mean there was a time... -APPLAUSE | 0:03:46 | 0:03:49 | |
It's all gone wrong. | 0:03:50 | 0:03:53 | |
OK, anyway, there is a scientist, Professor Con Slobodchikoff of Northern Arizona University, | 0:03:53 | 0:03:59 | |
who spent 30 years studying the language of these prairie dogs. | 0:03:59 | 0:04:04 | |
-Do they warn one another of predators? -Yes. -Is that one of their words? | 0:04:04 | 0:04:09 | |
He's used computer analysis and they are able to distinguish between different types of predator, | 0:04:09 | 0:04:15 | |
humans, badgers, various other animals. | 0:04:15 | 0:04:17 | |
Not only that, different geometric shapes, right? | 0:04:17 | 0:04:21 | |
-And... -And they have a different sound? -..different coloured shirts. | 0:04:21 | 0:04:25 | |
-Badger! Badger! -And the noise we heard... | 0:04:25 | 0:04:28 | |
-Human! -Yes. The noise we heard in prairie dog was, | 0:04:28 | 0:04:33 | |
"There is a human approaching wearing a yellow shirt." | 0:04:33 | 0:04:36 | |
I know that sounds almost inconceivable. | 0:04:38 | 0:04:41 | |
They can't distinguish between different genders of human | 0:04:41 | 0:04:44 | |
but they can do different heights. | 0:04:44 | 0:04:46 | |
So if a tall human approaches in a yellow shirt, | 0:04:46 | 0:04:49 | |
the leader who's on the look-out will make a series of squeaks | 0:04:49 | 0:04:52 | |
and under computer analysis, you can differentiate | 0:04:52 | 0:04:55 | |
between a tall human approaching in a red shirt | 0:04:55 | 0:04:59 | |
and a short human in a red shirt... | 0:04:59 | 0:05:01 | |
-How wide is their colour palette? -..a tall human in a yellow shirt and so on. | 0:05:01 | 0:05:05 | |
-If a transvestite in tartan approaches, they explode. -Yes! | 0:05:05 | 0:05:09 | |
They appear not to be able to determine gender with humans. | 0:05:11 | 0:05:14 | |
It doesn't seem to matter to them. | 0:05:14 | 0:05:16 | |
And now it's time for some interplanetary incomprehension. | 0:05:16 | 0:05:20 | |
What did the Pope's librarian say | 0:05:20 | 0:05:23 | |
when he first saw the rings around the planet Saturn? | 0:05:23 | 0:05:28 | |
-They initially thought the planet had ears... -Ah, yes. -..but that was Galileo. | 0:05:29 | 0:05:34 | |
I don't think he actually thought it had ears | 0:05:34 | 0:05:37 | |
because Galileo was a genius. | 0:05:37 | 0:05:39 | |
-Ears in the sense of a jug's ears, wasn't it? -Yes. | 0:05:39 | 0:05:42 | |
So that's Galileo, who was sensible. | 0:05:42 | 0:05:44 | |
We're talking about the librarian of the Pope. | 0:05:44 | 0:05:48 | |
He genuinely believed that it was possible that after Christ's ascension into heaven, | 0:05:48 | 0:05:55 | |
the rings of Saturn were where he put his foreskin. | 0:05:55 | 0:06:00 | |
Ah, yes! | 0:06:00 | 0:06:01 | |
Now, you may think, oh, I'm trying to mock the church, this is all nonsense. | 0:06:01 | 0:06:06 | |
But Christ, of course, was a Jewish boy | 0:06:06 | 0:06:08 | |
and like all Jewish boys, he was circumcised. | 0:06:08 | 0:06:11 | |
It's 50,000 miles across. Imagine the size... | 0:06:11 | 0:06:16 | |
-They weren't aware of that. -I need a peg to hang this massive foreskin on. | 0:06:16 | 0:06:20 | |
-That's some girth. -Yeah. | 0:06:20 | 0:06:23 | |
His name was Leo Allatius and his essay was called | 0:06:23 | 0:06:27 | |
De Praeputio Domini Nostri Jesu Christi Diatriba, | 0:06:27 | 0:06:31 | |
a diatribe, a discussion, concerning the prepuce, the foreskin, | 0:06:31 | 0:06:35 | |
of Our Lord Jesus Christ. | 0:06:35 | 0:06:36 | |
This is how to interest teenagers in astronomy. | 0:06:36 | 0:06:40 | |
This is how to do it. | 0:06:41 | 0:06:43 | |
Is it out there as a relic? | 0:06:43 | 0:06:45 | |
Like all the relics, that are 18 places | 0:06:45 | 0:06:48 | |
who claim to have the one true holy foreskin. | 0:06:48 | 0:06:52 | |
Are they really? | 0:06:52 | 0:06:54 | |
Catherine of Siena was one of the weirder of the saints. | 0:06:54 | 0:06:57 | |
She... She believed that Christ gave her his foreskin | 0:06:57 | 0:07:02 | |
-as a wedding ring in their mystical marriage. -Wow, what a gift. | 0:07:02 | 0:07:07 | |
After her death, her hand was cut off and became a relic | 0:07:07 | 0:07:11 | |
with its invisible foreskin on it as a ring. | 0:07:11 | 0:07:14 | |
She was an extreme anorexic, a peculiar woman | 0:07:14 | 0:07:17 | |
and she also actively sought out degrading experiences. | 0:07:17 | 0:07:21 | |
She once drank a cup full of cancerous pus | 0:07:21 | 0:07:24 | |
from a woman who had abused her, so naturally... | 0:07:24 | 0:07:27 | |
But has she appeared on Mock The Week? | 0:07:27 | 0:07:30 | |
APPLAUSE | 0:07:34 | 0:07:36 | |
But now, more importantly, more significantly, | 0:07:37 | 0:07:41 | |
how were the rings around Saturn actually formed? | 0:07:41 | 0:07:45 | |
I'm going to play the card, there. | 0:07:45 | 0:07:48 | |
-You are right! -FANFARE 'Nobody knows!' | 0:07:48 | 0:07:50 | |
-You're a true scientist. Nobody does really know. -Ahem, Miss? | 0:07:50 | 0:07:54 | |
There are two major... | 0:07:54 | 0:07:56 | |
-Well done. -Thank you. | 0:07:57 | 0:07:58 | |
-Well done! -APPLAUSE | 0:07:59 | 0:08:01 | |
Well done. Good. | 0:08:02 | 0:08:04 | |
-I didn't copy, I wasn't copying. -Yeah. | 0:08:04 | 0:08:07 | |
There's a Socratic acceptance of the limits of one's own knowledge | 0:08:07 | 0:08:11 | |
and there's ignorance. | 0:08:11 | 0:08:12 | |
I'm not saying which is which. | 0:08:12 | 0:08:15 | |
No, no. Quite right. There are two major theories. | 0:08:15 | 0:08:19 | |
There are two major theories. Is that right? | 0:08:20 | 0:08:22 | |
It's thought there could have been a moon that was disrupted, | 0:08:22 | 0:08:25 | |
so something hit it and fragmented it, | 0:08:25 | 0:08:27 | |
although they are almost pure water ice, | 0:08:27 | 0:08:31 | |
which, come to think of it, sat here, makes the moon theory a bit unlikely, doesn't it? | 0:08:31 | 0:08:36 | |
Moons are made of rock, so actually... | 0:08:36 | 0:08:39 | |
The other theory is that it could be something to do with the formation of the planet itself, | 0:08:39 | 0:08:44 | |
that something spun off it in some way | 0:08:44 | 0:08:46 | |
and achieved a stable orbit and formed these... | 0:08:46 | 0:08:50 | |
-God spilled his drink. -The structures are held by the other moons. | 0:08:50 | 0:08:54 | |
There are over 60 moons of Saturn. | 0:08:54 | 0:08:56 | |
Are they part of the rings or separate? | 0:08:56 | 0:08:59 | |
Some of them are inside - small moons called shepherd moons, | 0:08:59 | 0:09:02 | |
which go round and you get rings in between those moons. | 0:09:02 | 0:09:05 | |
Then it's got moons outside the rings, | 0:09:05 | 0:09:07 | |
which affect the structure of the rings as they orbit outside. | 0:09:07 | 0:09:11 | |
-So it's a very complex... -Any life-carrying moons? | 0:09:11 | 0:09:14 | |
There's a moon called Enceladus, which is about as big as Britain, a small moon, | 0:09:14 | 0:09:18 | |
but it has fountains of ice rising up out of the surface | 0:09:18 | 0:09:21 | |
and that means there may well be liquid water beneath the surface in pockets. | 0:09:21 | 0:09:27 | |
Everywhere on earth that you find water, you find life. | 0:09:27 | 0:09:30 | |
Of all these moons - this is the one thing I wanted to ask - | 0:09:30 | 0:09:33 | |
of all these moons, which one's most likely | 0:09:33 | 0:09:35 | |
to be the home to Ewoks? | 0:09:35 | 0:09:38 | |
-That would be Titan. -Titan, yeah? | 0:09:40 | 0:09:44 | |
It's got a thicker atmosphere than the earth, | 0:09:44 | 0:09:46 | |
so you'd need to be furry. | 0:09:46 | 0:09:48 | |
Good answer! | 0:09:51 | 0:09:53 | |
APPLAUSE | 0:09:53 | 0:09:54 | |
You'd have to destroy the one that has Jar Jar Binks on it, though. | 0:10:00 | 0:10:04 | |
It's very important when you're studying | 0:10:04 | 0:10:07 | |
-to know which notes to take, not just to take any old notes. -I saw that. Intelligence at work. | 0:10:07 | 0:10:12 | |
Now, while we're up in space, | 0:10:12 | 0:10:15 | |
what's the main use for the second commonest gas in the universe? | 0:10:15 | 0:10:20 | |
-Oh... Er, the second commonest? -Yes. | 0:10:21 | 0:10:23 | |
What is the second most abundant gas? | 0:10:23 | 0:10:26 | |
-Hydrogen. -Hydrogen, I think, is the most common, | 0:10:26 | 0:10:29 | |
-I believe, is the most abundant. -Nitrogen. -No. -Helium. | 0:10:29 | 0:10:32 | |
-Argon? -Helium is the right answer. -Helium balloons! | 0:10:32 | 0:10:35 | |
-I was going to say filling balloons. -Making squeaky voices. -That's not the reason. | 0:10:35 | 0:10:39 | |
-Squeaky voices, squeaky voices. -No, the reason is... | 0:10:39 | 0:10:43 | |
-HOOTER AND ALARM SOUND -No, the question is.... | 0:10:43 | 0:10:46 | |
The point is, there is a shortage on earth, not in the universe, of helium. | 0:10:48 | 0:10:53 | |
The demand for it has gone up in the last ten, 15 years | 0:10:53 | 0:10:56 | |
-and it's not... -The balloons are getting bigger. -..because of party entertainment. | 0:10:56 | 0:11:01 | |
-It's actually for something else. -We use it for refrigeration. | 0:11:01 | 0:11:05 | |
Refrigeration and there's a diagnostic device, | 0:11:05 | 0:11:08 | |
an expensive but effective diagnostic device that needs cooling. | 0:11:08 | 0:11:12 | |
-The MRI? -MRI, yes. -MRI is the right answer. | 0:11:12 | 0:11:15 | |
The superconducting coils of these... | 0:11:15 | 0:11:18 | |
They have to be that heavy, otherwise they just float off. | 0:11:18 | 0:11:21 | |
-That's it. -Absolute nightmare. | 0:11:22 | 0:11:23 | |
-They came from particle physics technology. -Ah, yeah. | 0:11:23 | 0:11:27 | |
You often get criticised | 0:11:27 | 0:11:29 | |
because exploring the universe is not seen as a useful thing to do, for some reason, in our society. | 0:11:29 | 0:11:34 | |
But the offshoots are unpredictable | 0:11:34 | 0:11:37 | |
and one of the offshoots of exploring particle physics, | 0:11:37 | 0:11:40 | |
the world of the atom and quantum mechanics, was the MRI scanner. | 0:11:40 | 0:11:43 | |
-In fact, we use helium to cool down the LHC. -Oh, do you? | 0:11:43 | 0:11:46 | |
It's 27km in circumference. | 0:11:46 | 0:11:49 | |
What was unfortunately misprinted as the Large Hard-on Collider. | 0:11:49 | 0:11:53 | |
My spellchecker does that. Large Hard-on Colluder it says. | 0:11:53 | 0:11:56 | |
-You colluded in a large hard-on. -Yes! | 0:11:56 | 0:11:59 | |
-It runs at minus 271 degrees, 1.9 degrees above absolute zero. -Wow. | 0:11:59 | 0:12:05 | |
And that's because you need these magnets, the superconducting magnets that you mentioned. | 0:12:05 | 0:12:10 | |
They're made of wire that has no electrical resistance, | 0:12:10 | 0:12:13 | |
so you can put big currents through and have a massive magnetic field. | 0:12:13 | 0:12:17 | |
But helium is the only substance that is liquid at that temperature. | 0:12:17 | 0:12:22 | |
Our information is, I don't know what you guys at CERN have, | 0:12:22 | 0:12:25 | |
but it's possible that on earth we will run out of helium by 2035. | 0:12:25 | 0:12:29 | |
-Yeah. -That's not that far away. -How will we make funny voices then? | 0:12:29 | 0:12:33 | |
And with the collider, there, with all those magnets in a circle underground, | 0:12:33 | 0:12:37 | |
under the hills and everything, | 0:12:37 | 0:12:40 | |
those Swiss cowbells on the cows, when you turn it on, | 0:12:40 | 0:12:43 | |
do they all run in a big circle? | 0:12:43 | 0:12:45 | |
Moo! Moo! Getting dragged around? | 0:12:45 | 0:12:48 | |
We're at 99.99999% of the speed of light around the... | 0:12:48 | 0:12:52 | |
So they go round the 27km 11,000 times a second | 0:12:52 | 0:12:55 | |
and the cows would weigh, if we did that, | 0:12:55 | 0:12:57 | |
-7,000 times more than they do when they're stood still. -Oh, my brain. | 0:12:57 | 0:13:01 | |
-Well, it's giving me an erection as we speak. -What, the LHC? | 0:13:02 | 0:13:06 | |
LAUGHTER | 0:13:06 | 0:13:08 | |
-It's become a Large Hard-on Colluder. -Exactly. | 0:13:09 | 0:13:12 | |
That's it. Exploration. That's the value of exploration. | 0:13:12 | 0:13:16 | |
It's exploration at a human level and at a cosmic level | 0:13:16 | 0:13:20 | |
and at a minute particle level. That's the beauty of it, it's... | 0:13:20 | 0:13:24 | |
Oh, gosh, anyway, I'm going to beat it down and we must carry on. | 0:13:24 | 0:13:28 | |
So... | 0:13:28 | 0:13:29 | |
-APPLAUSE -So... I'm glad you're all excited because it is good. | 0:13:30 | 0:13:34 | |
Now, this sounds very existential. When is the present? | 0:13:36 | 0:13:42 | |
Oh, I'm not going to fall into that trap. | 0:13:42 | 0:13:45 | |
-Who's going to say it? -Well, it's not really a trap. | 0:13:45 | 0:13:47 | |
I mean, there are different ways of trying to describe what the present might be. | 0:13:47 | 0:13:53 | |
Let's talk about the present in terms of archaeology. | 0:13:53 | 0:13:57 | |
Archaeologists actually have an acronym, BP, which means "before present" | 0:13:57 | 0:14:02 | |
and they can date the present to an exact date, January 1st 1950. | 0:14:02 | 0:14:07 | |
-That's the present? -For archaeologists | 0:14:07 | 0:14:09 | |
-and there's a reason for this and if you can work it out... -I'd have thought... -..I'll be impressed. | 0:14:09 | 0:14:14 | |
-Is it plastics? -Not quite that. -Bakelite? | 0:14:14 | 0:14:17 | |
-No, when archaeologists... -Is it...? | 0:14:17 | 0:14:19 | |
Archaeologists are interested in the distant past | 0:14:19 | 0:14:22 | |
and recently, in the last 100 or so years, | 0:14:22 | 0:14:25 | |
certain techniques have enabled us to discover - I say us... | 0:14:25 | 0:14:29 | |
-Carbon dating. -Carbon dating has allowed us to discover how old things are. | 0:14:29 | 0:14:33 | |
Now, in the 1950s... | 0:14:33 | 0:14:36 | |
Basically, they decided by January 1st 1950 | 0:14:36 | 0:14:39 | |
we had so screwed up the atmosphere with nuclear testing | 0:14:39 | 0:14:44 | |
that no carbon dating could be trusted after January 1st 1950, | 0:14:44 | 0:14:50 | |
so that is known as the present. | 0:14:50 | 0:14:52 | |
These archaeologists need to learn a bit of physics, then. | 0:14:52 | 0:14:56 | |
According to Einstein's theory of space and time, which is our best theory, | 0:14:56 | 0:15:00 | |
there's no such thing as a present moment | 0:15:00 | 0:15:03 | |
which spans the universe or indeed even the earth | 0:15:03 | 0:15:06 | |
or in fact two people moving relative to each other. | 0:15:06 | 0:15:09 | |
-They're... -It is absurd to think | 0:15:09 | 0:15:11 | |
of an event that might be happening now in a galaxy and me doing this as being simultaneous. | 0:15:11 | 0:15:17 | |
That has no meaning, cosmically, does it? | 0:15:17 | 0:15:19 | |
-You can swap the order of them... -Yes. | 0:15:19 | 0:15:21 | |
..as long as they're not causally connected. | 0:15:21 | 0:15:24 | |
We don't know how time works, at a very fundamental level. | 0:15:24 | 0:15:27 | |
But Time's Arrow, I actually got my head around that a bit. | 0:15:27 | 0:15:31 | |
You don't need maths | 0:15:31 | 0:15:33 | |
if everything is going forward and as it does, it decays, | 0:15:33 | 0:15:36 | |
so then you understand entropy, | 0:15:36 | 0:15:38 | |
I look for... All you need is analogy that's pertinent to you, | 0:15:38 | 0:15:42 | |
so in my case, all relationships, and then you realise... | 0:15:42 | 0:15:45 | |
Of course. You get that perfect 18 months and then they're dead. | 0:15:45 | 0:15:49 | |
-The second law of thermo... The second law of sexual dynamics. -Yeah. | 0:15:49 | 0:15:53 | |
That's how I - according to me - that's how I extrapolate. | 0:15:53 | 0:15:57 | |
But to make it statistically significant | 0:15:57 | 0:15:59 | |
-you have to have a lot of relationships. -Oh, I do. | 0:15:59 | 0:16:02 | |
And they really do all suffer from the law of entropy. | 0:16:02 | 0:16:06 | |
Now, who fancies an ingenious interlude? | 0:16:06 | 0:16:11 | |
I have some props that I'm really thrilled about. I love doing this. | 0:16:11 | 0:16:15 | |
Here - candles, see? Candles. | 0:16:15 | 0:16:18 | |
I'm going to light these candles here. | 0:16:19 | 0:16:22 | |
-Red, white and blue. -Is that from the Ikea Black Mass kit? | 0:16:23 | 0:16:26 | |
-Right. -Is this the point where we all have to kneel down | 0:16:26 | 0:16:30 | |
and pray to Jesus' foreskin? | 0:16:30 | 0:16:33 | |
No! I promise you. | 0:16:33 | 0:16:35 | |
I'm going to extinguish these candles, right? | 0:16:35 | 0:16:39 | |
I've a jug, here. | 0:16:39 | 0:16:40 | |
I'm going to extinguish them using an invisible gas. | 0:16:40 | 0:16:43 | |
Not by liquid but using an invisible gas. | 0:16:43 | 0:16:45 | |
I want you to tell me... I'm going to let Brian off. | 0:16:45 | 0:16:48 | |
This to him is like book 1, page 1 of Boy's Wonder Book Of Science | 0:16:48 | 0:16:53 | |
but that's the level I'm at, I'm afraid. | 0:16:53 | 0:16:55 | |
I'm going to put this powder in first. | 0:16:55 | 0:16:58 | |
-Do we know what the powder is? -Then this liquid. -Custard. | 0:16:58 | 0:17:01 | |
-It's not custard, no. -Oh, look. -I'm going to cover it up. | 0:17:01 | 0:17:04 | |
Now, watch. I'm not going to pour the liquid onto it, I'm just going to pour the gas | 0:17:04 | 0:17:08 | |
onto here. | 0:17:08 | 0:17:10 | |
-And out go the candles. -Ooh! | 0:17:10 | 0:17:12 | |
Oh, I like that! | 0:17:12 | 0:17:14 | |
APPLAUSE | 0:17:14 | 0:17:15 | |
-I've got a feeling... -Do another one. Do something else. | 0:17:18 | 0:17:21 | |
I should be presenting the Royal Institution Christmas lectures. | 0:17:21 | 0:17:24 | |
You should. | 0:17:24 | 0:17:25 | |
So can one of you, who isn't a professor at Manchester, | 0:17:25 | 0:17:28 | |
and a Fellow of the Royal Society, tell me what was going on there? | 0:17:28 | 0:17:32 | |
-Is it magic? -It's not... Well... | 0:17:32 | 0:17:35 | |
-I think it's carbon dioxide... going in. -Yes. | 0:17:36 | 0:17:40 | |
I took sodium bicarbonate, a very common household thing | 0:17:40 | 0:17:44 | |
you use for indigestion or for cleaning purposes, and vinegar. | 0:17:44 | 0:17:47 | |
And I put them together and they precipitated CO2, | 0:17:47 | 0:17:50 | |
-which is...? -Heavier than air. -Heavier than air. | 0:17:50 | 0:17:53 | |
And simply pouring it there snuffed out the candles. | 0:17:53 | 0:17:56 | |
I've never seen anyone pour a gas before. | 0:17:56 | 0:17:58 | |
I know. You don't think of gas as being a pourable thing. | 0:17:58 | 0:18:01 | |
I can't tell you how relieved I am that it worked. | 0:18:01 | 0:18:04 | |
Thank you, anyway. | 0:18:04 | 0:18:05 | |
Well done, everybody, especially me. | 0:18:05 | 0:18:08 | |
Thank you. | 0:18:08 | 0:18:09 | |
If you're ever tempted to carry liquid nitrogen in a lift, | 0:18:10 | 0:18:15 | |
-which in physics departments you are... -Liquid nitrogen is very cold. | 0:18:15 | 0:18:19 | |
It is but they don't let you carry it in lifts | 0:18:19 | 0:18:21 | |
because if you spill it, you get nitrogen gas and that's heavier than air | 0:18:21 | 0:18:25 | |
-and it pushes all the oxygen to the top. -You suffocate? -Yes. | 0:18:25 | 0:18:29 | |
Even though it's nitrogen, which the air is mainly made of. | 0:18:29 | 0:18:33 | |
Every al-Qaeda cell watching this tonight are going, | 0:18:33 | 0:18:37 | |
-"Where's the nearest tower block?" -Running around with ewers of nitrogen. | 0:18:37 | 0:18:41 | |
I remember a chemistry lesson, one of the most beautiful things I'd ever seen, | 0:18:41 | 0:18:45 | |
The master came in. Someone had prepared some liquid nitrogen - | 0:18:45 | 0:18:50 | |
we didn't know what it was - and he came in with a rose he'd just picked | 0:18:50 | 0:18:54 | |
and he dipped the rose in for a second | 0:18:54 | 0:18:57 | |
and then smashed it on the table | 0:18:57 | 0:18:59 | |
and it shattered like glass into 1,000 pieces. | 0:18:59 | 0:19:02 | |
You may say, "How destructive," but it was staggeringly beautiful, | 0:19:02 | 0:19:06 | |
the idea that you could alter the state of something at such speed | 0:19:06 | 0:19:10 | |
that it could suddenly become, from being the softest, most malleable thing. | 0:19:10 | 0:19:14 | |
-Isn't that lovely? -Beautiful. -It is. | 0:19:14 | 0:19:17 | |
-I think you're humouring me. -No! -You want me to go back to foreskins. | 0:19:18 | 0:19:23 | |
No. I think it's a hilarious Valentine's Day prank. | 0:19:23 | 0:19:26 | |
There you go. Wah! Not for you! | 0:19:27 | 0:19:30 | |
Can you imagine the surface of Saturn's moon, Titan. | 0:19:31 | 0:19:34 | |
-That's so cold that's got liquid methane. -I know Titan. | 0:19:34 | 0:19:38 | |
Titan's the one where the Ewoks live. Titan is the Ewok planet. | 0:19:38 | 0:19:42 | |
-Yeah! -That's the place. | 0:19:42 | 0:19:44 | |
-APPLAUSE -You see? -Hang on, I've got it. | 0:19:44 | 0:19:47 | |
I've got it. So basically, you're saying you can shatter an Ewok? | 0:19:47 | 0:19:51 | |
-Yes. Because it's got lakes of liquid methane. -Oh, wow. | 0:19:51 | 0:19:55 | |
Methane behaves exactly like water on earth, | 0:19:55 | 0:19:58 | |
so you get methane rain, you get methane snow, methane ice | 0:19:58 | 0:20:02 | |
and lakes of methane. | 0:20:02 | 0:20:03 | |
There's a lake there which is as large as Lake Superior. | 0:20:03 | 0:20:07 | |
-Methane is essentially a fart. Liquid fart. -Exactly, yes. | 0:20:07 | 0:20:11 | |
I don't want to go there. Strike it off. | 0:20:11 | 0:20:13 | |
If I could stand on a planet and throw an Ewok into a lake of farts, | 0:20:13 | 0:20:18 | |
that would just be... That would be like... | 0:20:18 | 0:20:22 | |
-Smash it into a fart. -You couldn't, because it would shatter. | 0:20:22 | 0:20:25 | |
Even better. | 0:20:25 | 0:20:28 | |
Right. So I could be tossing Ewoks into a lake of farts. | 0:20:28 | 0:20:32 | |
Ah! | 0:20:32 | 0:20:33 | |
-Your heaven. Everyone has their own heaven, that's yours. -That is... | 0:20:33 | 0:20:37 | |
When you say tossing Ewoks into a lake of farts... | 0:20:37 | 0:20:41 | |
-Yeah, yeah! -Steady! -No, that's exactly what I meant. | 0:20:41 | 0:20:44 | |
Oh! | 0:20:44 | 0:20:46 | |
You know what, after this show finishes, I'm off. | 0:20:46 | 0:20:49 | |
I don't care. You'll never see me again. | 0:20:49 | 0:20:52 | |
"Where is he?" "He's off tossing Ewoks again. | 0:20:52 | 0:20:55 | |
"Into his lake of farts on a pedalo make of smoke." | 0:20:55 | 0:20:59 | |
-MAKES EWOK NOISE -Is liquid methane flammable... | 0:21:00 | 0:21:05 | |
-in the same way that methane gas...? -This could be a great question for this show. | 0:21:05 | 0:21:10 | |
No but why? On Titan. | 0:21:10 | 0:21:13 | |
-Because the lakes... -Because there's no oxygen or...? | 0:21:13 | 0:21:17 | |
-Ah! No oxygen. -No oxygen. -There's no oxygen. | 0:21:17 | 0:21:20 | |
-If there was oxygen... -Yes. -..it would be? | 0:21:20 | 0:21:24 | |
All you're thinking of is things to do in the pub. | 0:21:24 | 0:21:26 | |
That's ruined it. It's not the image of him, tossing an Ewok. | 0:21:26 | 0:21:31 | |
So you don't want to go there because you can't light your farts. | 0:21:31 | 0:21:35 | |
The great Sydney Smith said heaven was eating foie gras to the sound of trumpets. | 0:21:38 | 0:21:43 | |
You have redefined it. Tossing Ewoks into lakes of methane. | 0:21:43 | 0:21:48 | |
It's nothing to do with heaven, it's just things to do on Titan. | 0:21:48 | 0:21:52 | |
That's in the guide book, Things To Do On Titan. | 0:21:52 | 0:21:56 | |
It's on the front of the guide book. | 0:21:56 | 0:21:58 | |
"If only have access to a Wookiee, you will need a bigger lake." | 0:21:58 | 0:22:02 | |
That's just basic science. I could tell you that. | 0:22:04 | 0:22:07 | |
-A test now of your nautical knowledge. -Oh! | 0:22:09 | 0:22:12 | |
What variety of lettuce did they serve on board the Titanic? | 0:22:12 | 0:22:16 | |
Iceberg. | 0:22:16 | 0:22:18 | |
-Oh, dear. -ALARM AND HOOTER | 0:22:18 | 0:22:21 | |
APPLAUSE | 0:22:21 | 0:22:22 | |
-Well, bless you. -I took one for the team, as it were. | 0:22:25 | 0:22:28 | |
You did take one for the team. | 0:22:28 | 0:22:30 | |
The iceberg lettuce had been developed in Pennsylvania | 0:22:30 | 0:22:33 | |
-but it was not available in Europe. -Was it rocket? Lollo rosso? | 0:22:33 | 0:22:37 | |
-The answer is we don't know. -Oh. | 0:22:37 | 0:22:39 | |
We do know there were 700 heads of lettuce on board... | 0:22:39 | 0:22:42 | |
-You make them sound like heads of state. -Doesn't it? | 0:22:42 | 0:22:45 | |
Most grand of all the lettuce, the head of lettuce. | 0:22:45 | 0:22:48 | |
Why did they only have 700 lettuce? How many people were on board? | 0:22:48 | 0:22:51 | |
Either they'd already eaten that much and that much was saved | 0:22:51 | 0:22:55 | |
or they didn't order that much. | 0:22:55 | 0:22:57 | |
They saved the lettuce but not the people? | 0:22:57 | 0:22:59 | |
1,500 people died on that ship. | 0:22:59 | 0:23:01 | |
"Get the lettuce, for crying out loud." | 0:23:01 | 0:23:04 | |
Oh dear, I misread my card. | 0:23:04 | 0:23:06 | |
It was - hold the front page - 7,000 heads of lettuce. | 0:23:06 | 0:23:10 | |
No wonder the bloody thing sank. It was full of lettuce. | 0:23:10 | 0:23:14 | |
Before they even start... | 0:23:14 | 0:23:16 | |
-Lettuces float. -Well, why did it sink, then? | 0:23:16 | 0:23:19 | |
What is wrong with these people? | 0:23:21 | 0:23:23 | |
-Where do you think the most valuable icebergs are? -Valuable? -Valuable. | 0:23:24 | 0:23:28 | |
-Lettuce icebergs or icebergs? -Iceberg icebergs. | 0:23:28 | 0:23:31 | |
-Not necessarily on earth but in our solar system. -Oh. | 0:23:31 | 0:23:34 | |
I'm thinking of Neptune or Uranus. | 0:23:34 | 0:23:37 | |
No, no, no, no. | 0:23:37 | 0:23:41 | |
It's thought the crushing pressure might create lakes of liquid diamond | 0:23:41 | 0:23:45 | |
-filled with solid diamond icebergs. -Mm. -Ooh. | 0:23:45 | 0:23:48 | |
-I don't know who thinks this. -Mariah Carey. | 0:23:48 | 0:23:52 | |
She was... She was the one that thought of that. | 0:23:53 | 0:23:56 | |
"How heavy are they? I'll be there." | 0:23:58 | 0:24:00 | |
-Does it seem to you to have any value? -Yes, it could, in principle. | 0:24:01 | 0:24:07 | |
-There is a lot of pressure. -Huge pressures deep down, yeah. | 0:24:07 | 0:24:11 | |
Now, I'd like you to fill in the gaps in these slogans | 0:24:11 | 0:24:15 | |
for various places or institutions. | 0:24:15 | 0:24:18 | |
We start with County Donegal's slogan, OK? | 0:24:18 | 0:24:22 | |
-IRISH ACCENT -"Up here it's..." | 0:24:22 | 0:24:23 | |
-Windy. -Green. -It really is windy there. | 0:24:23 | 0:24:26 | |
-Different. -It's different. -"Up here it's different." | 0:24:26 | 0:24:29 | |
That's Donegal's slogan, you'll be pleased to know. | 0:24:29 | 0:24:33 | |
Northumbria police, however, "Total..." | 0:24:33 | 0:24:37 | |
-Night. -Gobshites. -Total arrest. | 0:24:38 | 0:24:41 | |
-"Total policing," I'm sorry to say. -Total brutality. | 0:24:41 | 0:24:47 | |
-GEORDIE ACCENT: -Total policing. | 0:24:47 | 0:24:49 | |
"Welcome to Northamptonshire. Let yourself..." | 0:24:49 | 0:24:52 | |
Down. | 0:24:52 | 0:24:54 | |
Let yourself out. | 0:24:57 | 0:24:59 | |
The nearest exit. Poor Northamptonshire. | 0:25:01 | 0:25:05 | |
-Charming place. Let yourself... -Breathe. -Relax. | 0:25:05 | 0:25:08 | |
-Breathe is good, relax is... -Let's yourself go. -Not bad. | 0:25:08 | 0:25:11 | |
-Grow. -Grow. -Grow. -That is disgusting. | 0:25:11 | 0:25:15 | |
-Let yourself go, yeah. -Let yourself grow into a larger person. | 0:25:15 | 0:25:20 | |
This is an optimistic one. | 0:25:20 | 0:25:22 | |
"Welcome to Tower Hamlets. Let's make it..." | 0:25:22 | 0:25:25 | |
-ASBO week. -Out alive. | 0:25:25 | 0:25:27 | |
Let's make it out alive. | 0:25:29 | 0:25:31 | |
-Let's make it happen. -Let's make it happen. | 0:25:37 | 0:25:40 | |
There's no H on happen there. Let's make it 'appen. | 0:25:40 | 0:25:43 | |
There was another slogan that said, "It did happen on Friday 17th. | 0:25:43 | 0:25:47 | |
"If you witnessed it, please ring this number." | 0:25:47 | 0:25:50 | |
APPLAUSE | 0:25:51 | 0:25:53 | |
Oh, dear. | 0:25:54 | 0:25:56 | |
We could go on like this forever but we're simply not going to. | 0:25:56 | 0:26:01 | |
So we stumble now into the gaping maw of General Ignorance. | 0:26:01 | 0:26:05 | |
Fingers on buzzers, quick as you can. | 0:26:05 | 0:26:06 | |
What's the definition of a galaxy? | 0:26:06 | 0:26:08 | |
-I'm going to make a... -BABY GURGLES | 0:26:08 | 0:26:11 | |
-FANFARE 'Nobody knows!' -Yes! You're right. | 0:26:11 | 0:26:14 | |
Essentially, there is no absolutely official decision | 0:26:14 | 0:26:17 | |
but there are scientists trying to work out precisely what a galaxy might be. | 0:26:17 | 0:26:22 | |
It's Duncan Forbes of Swinburne University in Australia | 0:26:22 | 0:26:26 | |
and Pavel Kroupa, the University of Bonn in Germany. | 0:26:26 | 0:26:29 | |
They launched an on-line survey and we have been allowed at QI | 0:26:29 | 0:26:33 | |
to be the first people to see the results of the poll so far. | 0:26:33 | 0:26:36 | |
Based on that, there is already one new galaxy that fits. | 0:26:36 | 0:26:39 | |
A globular cluster, Omega Centauri, seems to qualify, | 0:26:39 | 0:26:43 | |
according to those criteria, as a galaxy. | 0:26:43 | 0:26:46 | |
In that image, the Hubble Deep Field image, | 0:26:46 | 0:26:48 | |
this year, the most distant galaxy ever discovered was found in that photograph | 0:26:48 | 0:26:52 | |
and it's 13.2 billion light years away. | 0:26:52 | 0:26:57 | |
So the earth's been here for, what, 5 billion years, | 0:26:57 | 0:27:00 | |
so for most of the journey of the light from those galaxies you can see in that image | 0:27:00 | 0:27:04 | |
the earth wasn't even here. It wasn't formed. | 0:27:04 | 0:27:07 | |
It was formed when they were almost halfway... | 0:27:07 | 0:27:10 | |
The further away you look, the further towards the birth of the universe you're looking. | 0:27:10 | 0:27:15 | |
How do you know which direction to look? Did it begin here or there? | 0:27:15 | 0:27:18 | |
-Are we on the surface of a balloon? -It began here. | 0:27:18 | 0:27:20 | |
The Big Bang happened here, at every point in space. | 0:27:20 | 0:27:24 | |
The picture is that space and time began at that point | 0:27:24 | 0:27:27 | |
and it's been stretching ever since, | 0:27:27 | 0:27:29 | |
so all of space and all of time, in some sense, | 0:27:29 | 0:27:33 | |
were there at the Big Bang, so the Big Bang happened everywhere. | 0:27:33 | 0:27:36 | |
-There's no centre. -You can't see it because black's a very slimming colour. | 0:27:36 | 0:27:42 | |
That's true. I just think it's all beautiful and wonderful. | 0:27:42 | 0:27:45 | |
And finally, the scores, which are as baffling as always. | 0:27:45 | 0:27:50 | |
It's fascinating, it's remarkable, it's wonderful, it's exciting. | 0:27:50 | 0:27:54 | |
In last place, it's Sue Perkins with minus 17. | 0:27:54 | 0:27:57 | |
APPLAUSE | 0:27:57 | 0:27:58 | |
A highly creditable third place with minus 6 - Ross Noble. | 0:28:01 | 0:28:05 | |
APPLAUSE | 0:28:05 | 0:28:06 | |
But surely putting himself in contention for a Nobel Prize | 0:28:10 | 0:28:13 | |
some time in the next few years, on plus 2, | 0:28:13 | 0:28:16 | |
-Alan Davies. -Thank you very much. | 0:28:16 | 0:28:18 | |
APPLAUSE AND CHEERING | 0:28:18 | 0:28:19 | |
And it can come as no surprise | 0:28:20 | 0:28:24 | |
that the mop-top from Oldham is our winner. | 0:28:24 | 0:28:27 | |
On plus five, it's Professor Brian Cox. | 0:28:27 | 0:28:30 | |
APPLAUSE AND CHEERING | 0:28:30 | 0:28:32 | |
So, it only remains for me to thank Brian, Sue, Ross and Alan | 0:28:35 | 0:28:41 | |
and to leave you with an observation from Will Rogers. | 0:28:41 | 0:28:44 | |
"An ignorant person is one who doesn't know | 0:28:44 | 0:28:48 | |
"what you have only just found out." | 0:28:48 | 0:28:50 | |
-Goodnight. -APPLAUSE AND CHEERING | 0:28:50 | 0:28:53 | |
Subtitles by Red Bee Media Ltd | 0:29:11 | 0:29:13 | |
E-mail [email protected] | 0:29:13 | 0:29:15 |