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CHEERING AND APPLAUSE | 0:00:24 | 0:00:26 | |
Good evening, good evening, | 0:00:31 | 0:00:33 | |
good evening, good evening, good evening, good evening. | 0:00:33 | 0:00:36 | |
Welcome to QI, where tonight's show is completely and utterly incomprehensible. | 0:00:36 | 0:00:43 | |
Venturing into the unknown with me tonight are...What's his name? | 0:00:43 | 0:00:47 | |
APPLAUSE | 0:00:47 | 0:00:50 | |
And...Oh, you know! | 0:00:51 | 0:00:55 | |
APPLAUSE | 0:00:55 | 0:00:57 | |
And...Wait, don't tell me! | 0:01:00 | 0:01:03 | |
APPLAUSE | 0:01:03 | 0:01:05 | |
And, finally...No, I've never seen him before in my life. | 0:01:09 | 0:01:14 | |
APPLAUSE | 0:01:14 | 0:01:17 | |
Our buzzers tonight are no less perplexing than our questions. | 0:01:19 | 0:01:24 | |
-Sue goes. -BABY TALK | 0:01:24 | 0:01:27 | |
LAUGHTER Eleven types of wrong, just there. | 0:01:27 | 0:01:31 | |
-Brian goes. -LASER NOISE | 0:01:31 | 0:01:36 | |
-Ross goes. -HIGH PITCHED RANTING | 0:01:36 | 0:01:40 | |
-Alan goes. -ALAN TALKING GIBBERISH | 0:01:42 | 0:01:47 | |
-"..dirty old bag." -LAUGHTER | 0:01:47 | 0:01:51 | |
-Wow! -Is that your internal dialogue? | 0:01:51 | 0:01:53 | |
I think so. I don't know how they got that. | 0:01:53 | 0:01:56 | |
-Don't forget, in this series, we have the Nobody Knows joker. -TANNOY: -Nobody knows! | 0:01:56 | 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 has no known, authoritative answer, | 0:02:05 | 0:02:10 | |
play your Nobody Knows joker and you will get extra points. | 0:02:10 | 0:02:13 | |
Let's start with something that is not even in the same language. | 0:02:13 | 0:02:17 | |
Listen to this and tell me what it means. | 0:02:17 | 0:02:20 | |
SQUEAKING | 0:02:20 | 0:02:23 | |
-That's a rodent. -It's a rodent. Good. Can you narrow it down? | 0:02:25 | 0:02:29 | |
-Is it the squeaky door to his rodent house? -He's asking for some oil(!) | 0:02:29 | 0:02:33 | |
The astonishing thing is, we do know what that means. | 0:02:33 | 0:02:37 | |
I can vouch for this. There are people who study this. | 0:02:37 | 0:02:40 | |
My director on one of my documentaries got a PhD from Oxford studying frog communication. | 0:02:40 | 0:02:45 | |
-He sat there for three... -He was a professor of French? -LAUGHTER | 0:02:45 | 0:02:50 | |
No, stop it. Sorry. | 0:02:50 | 0:02:52 | |
He sat there for three years, in the outback, somewhere in Australia, | 0:02:52 | 0:02:55 | |
and he discerned about three words which I think were something like... | 0:02:55 | 0:02:59 | |
Ribbit. LAUGHTER | 0:02:59 | 0:03:02 | |
You are absolutely right. There are zoologists who spend their life | 0:03:02 | 0:03:06 | |
trying to understand communications of various species. | 0:03:06 | 0:03:10 | |
-Do you know what this species is? -The gopher. -It is a gopher. | 0:03:10 | 0:03:14 | |
Exactly. A prairie dog. It's also known as a ground squirrel. | 0:03:14 | 0:03:18 | |
Isn't ground squirrel a condiment? | 0:03:18 | 0:03:21 | |
LAUGHTER | 0:03:21 | 0:03:23 | |
A little ground squirrel, madam? | 0:03:23 | 0:03:27 | |
LAUGHTER | 0:03:27 | 0:03:29 | |
He's making that face cos he's got Philip Schofield's hand up his bum. | 0:03:30 | 0:03:34 | |
LAUGHTER | 0:03:34 | 0:03:37 | |
That takes me back a bit! | 0:03:37 | 0:03:39 | |
Is that what the squeaking noise is? | 0:03:39 | 0:03:42 | |
When I say, that takes me back, I don't mean there was a time... | 0:03:42 | 0:03:48 | |
LAUGHTER | 0:03:48 | 0:03:50 | |
It's all gone wrong! | 0:03:50 | 0:03:52 | |
Anyway, there is a scientist, Professor Con Slobodchikoff | 0:03:53 | 0:03:58 | |
of Northern Arizona University, who spent 30 years | 0:03:58 | 0:04:01 | |
studying the language of these prairie dogs. | 0:04:01 | 0:04:04 | |
-Do they warn one another of predators? -Yes. | 0:04:04 | 0:04:08 | |
Is that one of the words? | 0:04:08 | 0:04:10 | |
He's used computer analysis and they are able to distinguish between different types of predator. | 0:04:10 | 0:04:15 | |
Humans, badgers, various other animals. | 0:04:15 | 0:04:17 | |
Not only that, different geometric shapes. | 0:04:17 | 0:04:21 | |
And they have a different sound for each one? | 0:04:21 | 0:04:24 | |
-And different coloured shirts that humans are wearing. The noise we heard. -SQUEAKS: -Human! | 0:04:24 | 0:04:30 | |
The noise we heard in prairie dog was, "There's a human approaching wearing a yellow shirt." | 0:04:30 | 0:04:36 | |
I know that sounds almost inconceivable. | 0:04:38 | 0:04:42 | |
They can't distinguish between different genders of human but they can in different height. | 0:04:42 | 0:04:46 | |
If a tall human approaches in a yellow shirt, the leader will make a series of squeaks | 0:04:46 | 0:04:52 | |
and, under computer analysis, you can differentiate between | 0:04:52 | 0:04:56 | |
-a tall human in a red shirt and a short human in a red shirt... -How wide is their colour palette? | 0:04:56 | 0:05:01 | |
..and a tall human in a yellow shirt and so on. | 0:05:01 | 0:05:05 | |
Apparently, if a transvestite in tartan approaches, they explode. | 0:05:05 | 0:05:09 | |
LAUGHTER | 0:05:09 | 0:05:11 | |
Here is a similar clip but translated into English. | 0:05:11 | 0:05:15 | |
Alan! Alan! Alan! Alan! | 0:05:16 | 0:05:19 | |
Al! Alan! Alan! Alan! | 0:05:19 | 0:05:23 | |
Alan! Alan! | 0:05:23 | 0:05:25 | |
Alan! Alan! Alan! | 0:05:25 | 0:05:26 | |
Oh, it's not Alan. That's Steve. | 0:05:27 | 0:05:30 | |
Steve! Steve! Steve! Steve! | 0:05:31 | 0:05:33 | |
Steve! Steve! Steve! | 0:05:33 | 0:05:35 | |
Steve! | 0:05:35 | 0:05:37 | |
We can watch that forever, can't we? | 0:05:37 | 0:05:41 | |
APPLAUSE | 0:05:41 | 0:05:43 | |
Now it's time for some interplanetary incomprehension. | 0:05:48 | 0:05:52 | |
What did the Pope's librarian say | 0:05:52 | 0:05:55 | |
when he first saw the rings around the planet Saturn? | 0:05:55 | 0:06:01 | |
They initially thought the planet had ears. | 0:06:01 | 0:06:04 | |
-Ah, yes. -That was Galileo. | 0:06:04 | 0:06:06 | |
I don't think he actually thought it had ears because Galileo was a genius. | 0:06:06 | 0:06:12 | |
Ears in the sense of jug ears, wasn't it? | 0:06:12 | 0:06:15 | |
No, that's Galileo, who was sensible. | 0:06:15 | 0:06:17 | |
I'm talking about the librarian of the Pope. | 0:06:17 | 0:06:20 | |
He genuinely believed that it was possible that after Christ's ascension into heaven, | 0:06:20 | 0:06:27 | |
the rings of Saturn were where he put his foreskin. | 0:06:27 | 0:06:32 | |
Ah, yes. | 0:06:32 | 0:06:34 | |
Now you may think I am trying to mock the Church, | 0:06:34 | 0:06:37 | |
this is all nonsense, but Christ was a Jewish boy | 0:06:37 | 0:06:40 | |
and like all Jewish boys, on the eighth day of his birth, he was circumcised. | 0:06:40 | 0:06:45 | |
But it's 50,000 miles across. Imagine the size! | 0:06:45 | 0:06:48 | |
They weren't aware of that. | 0:06:48 | 0:06:50 | |
"I need a peg to hang this massive foreskin on!" | 0:06:50 | 0:06:52 | |
-I've got a new respect for Jesus. -That is some girth! | 0:06:52 | 0:06:56 | |
His name was Leo Allatius and his essay was called, | 0:06:56 | 0:06:59 | |
De Praeputio Domini Nostri Jesu Christi Diatriba. | 0:06:59 | 0:07:03 | |
A diatribe, a discussion, concerning the prepuce, foreskin, of our Lord Jesus Christ. | 0:07:03 | 0:07:08 | |
This is how to interest teenagers in astronomy. | 0:07:08 | 0:07:13 | |
-This is a trick I've been missing. -Is it out there as a relic? | 0:07:13 | 0:07:17 | |
Like all the relics, there are 18 places who claim to have the one true Holy foreskin. | 0:07:17 | 0:07:24 | |
Are there really? | 0:07:24 | 0:07:26 | |
Catherine of Siena was one of the weirder of the saints. | 0:07:26 | 0:07:29 | |
She believed that Christ gave her his foreskin as a wedding ring | 0:07:29 | 0:07:36 | |
-in their mystical marriage. -What a gift(!) | 0:07:36 | 0:07:39 | |
After her death her hand was cut off and became a relic | 0:07:39 | 0:07:43 | |
with its invisible foreskin on it as a ring. | 0:07:43 | 0:07:47 | |
She was extremely anorexic, a peculiar woman. | 0:07:47 | 0:07:49 | |
She actively sought out degrading experiences. | 0:07:49 | 0:07:53 | |
She once drank a cup full of cancerous pus | 0:07:53 | 0:07:56 | |
from a woman who had abused her. | 0:07:56 | 0:07:58 | |
But has she appeared on Mock the Week? | 0:07:58 | 0:08:01 | |
LAUGHTER | 0:08:01 | 0:08:05 | |
APPLAUSE | 0:08:05 | 0:08:08 | |
Now, more importantly, more significantly, | 0:08:09 | 0:08:13 | |
how were the rings around Saturn actually formed? | 0:08:13 | 0:08:17 | |
-I'm going to play the card there. -You are right! | 0:08:17 | 0:08:21 | |
-TANNOY: -Nobody knows! -You are a true scientist. | 0:08:21 | 0:08:23 | |
-Nobody does really know, do they? -A-hem! | 0:08:23 | 0:08:26 | |
-There are two major... -LAUGHTER | 0:08:26 | 0:08:30 | |
-Well done. -Thank you. | 0:08:30 | 0:08:32 | |
-Well done! -APPLAUSE | 0:08:32 | 0:08:35 | |
I didn't copy. I wasn't copying. | 0:08:36 | 0:08:39 | |
There's a Socratic acceptance of the limits of one's own knowledge and there's ignorance. | 0:08:39 | 0:08:44 | |
I'm not saying which is which. | 0:08:44 | 0:08:47 | |
No, quite right. There are two major theories. | 0:08:47 | 0:08:51 | |
I think there are two major theories. Is that right? | 0:08:51 | 0:08:54 | |
There could be a moon that was either disrupted, so something hit it and fragmented it, | 0:08:54 | 0:08:59 | |
although they are almost pure water ice, | 0:08:59 | 0:09:04 | |
which, come to think of it, makes the moon theory a bit unlikely, doesn't it, | 0:09:04 | 0:09:08 | |
because moons are made of rock. | 0:09:08 | 0:09:10 | |
-Actually... -The other theory is that it is something to do with the formation of the planet itself. | 0:09:10 | 0:09:15 | |
That something spun-off it in some way | 0:09:15 | 0:09:17 | |
-and then achieved a stable orbit around and formed these... -God spilled his drink. | 0:09:17 | 0:09:24 | |
The structures are held by the other moons. | 0:09:24 | 0:09:27 | |
-There are over 60 moons of Saturn. -Are they part of the rings or separate? -Some of them are inside. | 0:09:27 | 0:09:31 | |
Small moons called shepherd moons which go around | 0:09:31 | 0:09:34 | |
and you get rings in between those moons | 0:09:34 | 0:09:38 | |
and it's got moons outside the rings which affect the structure of the rings, so they orbit outside. | 0:09:38 | 0:09:43 | |
-It's a very complex... -Any life-carrying moons? | 0:09:43 | 0:09:46 | |
There's a moon called Enceladus, which is about as big as Britain, it's a very small moon, | 0:09:46 | 0:09:51 | |
but it has fountains of ice rising up out of the surface | 0:09:51 | 0:09:54 | |
and it's thought there may be liquid water beneath the surface, so pockets of liquid water. | 0:09:54 | 0:09:58 | |
Everywhere on Earth that you find water, you find life. | 0:09:58 | 0:10:02 | |
Of all these moons, this is the one thing I wanted to ask you, | 0:10:02 | 0:10:05 | |
of all these moons, which one is most likely to be the home to Ewoks? | 0:10:05 | 0:10:10 | |
LAUGHTER | 0:10:10 | 0:10:13 | |
-That would be Titan. -Titan? | 0:10:13 | 0:10:16 | |
It's got a thicker atmosphere than the Earth so you'd need to be furry. | 0:10:16 | 0:10:21 | |
LAUGHTER | 0:10:21 | 0:10:24 | |
-Good answer! -APPLAUSE | 0:10:24 | 0:10:26 | |
We just have to destroy the one that has Jar Jar Binks on it. | 0:10:32 | 0:10:36 | |
It's very important when you're learning to study | 0:10:36 | 0:10:39 | |
-to know which notes to take, not just to take any old notes. -I saw that. Intelligence at work. | 0:10:39 | 0:10:45 | |
Now, while we're up in space, how do you imagine spacemen follow penguins about? | 0:10:45 | 0:10:50 | |
Why would they want to? How would they do it? | 0:10:52 | 0:10:54 | |
-I suppose to track colonies. -You're absolutely right. | 0:10:54 | 0:10:58 | |
They used to try and use little bands around their flippers | 0:10:58 | 0:11:01 | |
but they found that there was a 44% increase in mortality | 0:11:01 | 0:11:06 | |
amongst penguins that had these things attached | 0:11:06 | 0:11:09 | |
so they had to find a way of observing penguins | 0:11:09 | 0:11:11 | |
and they found they could do it through space. | 0:11:11 | 0:11:14 | |
What's interesting is, it's the activity of the penguin that is most revealing is... | 0:11:14 | 0:11:18 | |
-Is it their droppings? -It's how they poo. | 0:11:18 | 0:11:22 | |
-How do they poo? -A German scientist from Bremen... -Straight up. | 0:11:22 | 0:11:26 | |
LAUGHTER Into the atmosphere. | 0:11:26 | 0:11:30 | |
He discovered they squeeze four times harder than humans. | 0:11:30 | 0:11:33 | |
-They fire it? -Yes, they do. | 0:11:33 | 0:11:36 | |
It's a bit like toothpaste, and when you get lots of them together, | 0:11:36 | 0:11:39 | |
they spell out, "Piss off spacemen." | 0:11:39 | 0:11:42 | |
It's a streak. They leave a streak of faeces. | 0:11:44 | 0:11:47 | |
-A splatter gun of guano that's visible from... -Like that. | 0:11:47 | 0:11:52 | |
Oh, no, don't tell me it's sat in the middle of it. | 0:11:52 | 0:11:55 | |
No, it's not, that's the point. It's squirted it out. | 0:11:55 | 0:11:58 | |
-30cms away from its body, it goes. -Somebody took that photo. | 0:11:58 | 0:12:02 | |
They've still got to walk through it! Surely they should squirt it out the sides. | 0:12:02 | 0:12:06 | |
It's like painting yourself into a corner, really, isn't it? | 0:12:06 | 0:12:10 | |
LAUGHTER | 0:12:10 | 0:12:13 | |
It just looks like somebody ran over that one in a Land Rover. | 0:12:13 | 0:12:17 | |
Someone's up in space, looking down for Emperor penguin poo? | 0:12:17 | 0:12:23 | |
No, they're looking for how they're flocking together, how they're living, | 0:12:23 | 0:12:27 | |
and through an examination of their faeces, | 0:12:27 | 0:12:29 | |
which are clearly visible because of the trails and streaks they leave behind, | 0:12:29 | 0:12:33 | |
they're able to predict population rises and falls. | 0:12:33 | 0:12:37 | |
I think it's rather wonderful. It's a fantastic way of being able to observe animals | 0:12:37 | 0:12:42 | |
without them even knowing they're being watched | 0:12:42 | 0:12:44 | |
and being able to gauge their diets and health. | 0:12:44 | 0:12:47 | |
Still in space, what's the main use for the second commonest gas in the universe? | 0:12:47 | 0:12:53 | |
-Oh, second commonest? -Yes. | 0:12:54 | 0:12:57 | |
-What might be the second most abundant gas in the universe? -Hydrogen. | 0:12:57 | 0:13:01 | |
Hydrogen is the most common, I believe. | 0:13:01 | 0:13:03 | |
-Nitrogen. -No. -Helium. -Helium is the right answer! | 0:13:03 | 0:13:07 | |
Helium... filling balloons! I was going to say filling balloons. | 0:13:07 | 0:13:11 | |
Filling balloons is not the reason. | 0:13:11 | 0:13:13 | |
Squeaky voices! Squeaky voices! | 0:13:13 | 0:13:15 | |
KLAXON SOUNDS | 0:13:15 | 0:13:17 | |
The question is... | 0:13:19 | 0:13:22 | |
..the point is, there is a shortage on Earth, not in the universe, of helium. | 0:13:22 | 0:13:26 | |
The demand for it has gone up in the last 15 years | 0:13:26 | 0:13:29 | |
and it is not because party entertainment has become a bigger thing, | 0:13:29 | 0:13:34 | |
-it is actually for something else. -We use it for refrigeration. | 0:13:34 | 0:13:38 | |
Refrigeration. And it's a diagnostic device. | 0:13:38 | 0:13:42 | |
-An expensive but highly effective diagnostic device that needs cooling. -The MRI. | 0:13:42 | 0:13:47 | |
That is the right answer. The superconducting, the coils... | 0:13:47 | 0:13:51 | |
They have to be that heavy otherwise they just float off. | 0:13:51 | 0:13:55 | |
It's a nightmare. | 0:13:55 | 0:13:57 | |
They came from particle physics technology. | 0:13:57 | 0:14:00 | |
You often get criticised because exploring the universe | 0:14:00 | 0:14:04 | |
is not seen as a useful thing to do for some reason in our society. | 0:14:04 | 0:14:08 | |
Actually, the offshoots are completely unpredictable | 0:14:08 | 0:14:11 | |
and one of the offshoots of exploring particle physics, | 0:14:11 | 0:14:13 | |
the world of the atom, quantum mechanics, was the MRI scanner. | 0:14:13 | 0:14:16 | |
-We use helium to cool down the LHC. -Oh, do you? | 0:14:16 | 0:14:19 | |
The Large Hadron Collider, 27kms in circumference... | 0:14:19 | 0:14:22 | |
What was unfortunately misprinted as the Large Hard On Collider. | 0:14:22 | 0:14:26 | |
My spell-checker does that. Large Hard On Colluder. | 0:14:26 | 0:14:29 | |
It colluded in a large hard on(!) | 0:14:29 | 0:14:33 | |
But it runs at -271 degrees, so 1.9 degrees above absolute zero. | 0:14:33 | 0:14:39 | |
That's because you need these superconducting magnets that are in MRI scanners. | 0:14:39 | 0:14:43 | |
They're magnets made of wire that have no electrical resistance. | 0:14:43 | 0:14:47 | |
You can put a current through it and have a massive magnetic field. | 0:14:47 | 0:14:50 | |
But the helium is the only substance that is liquid. | 0:14:50 | 0:14:54 | |
Our information is, and I don't know what you guys at CERN have, | 0:14:54 | 0:14:59 | |
is that it's possible that on Earth we will run out of helium by 2035, | 0:14:59 | 0:15:03 | |
-which is not that far away. -How are we going to make funny voices then? | 0:15:03 | 0:15:08 | |
With the Collider, with all those magnets in a circle underground, | 0:15:08 | 0:15:11 | |
on the hills and everything, those Swiss cow bells on the cows, | 0:15:11 | 0:15:15 | |
when you turn it on, do they all run in a big circle? Moo! | 0:15:15 | 0:15:19 | |
Moo! Moo! Getting dragged around. | 0:15:19 | 0:15:22 | |
They go at 99.999999% the speed of light, | 0:15:22 | 0:15:24 | |
so they go round 27 kilometres 11,000 times a second | 0:15:24 | 0:15:28 | |
and the cows would weigh, if we did that, 7,000 times more than they do. | 0:15:28 | 0:15:32 | |
-Ouch, my brain! -Wow! | 0:15:32 | 0:15:34 | |
-It's giving me an erection. -What, the LHC? | 0:15:38 | 0:15:41 | |
-You've become a Large Hard On Colluder. -Exactly! -LAUGHTER | 0:15:42 | 0:15:47 | |
Exploration. That's the value of exploration. | 0:15:47 | 0:15:49 | |
And at the smallest level, at a human level and at a cosmic level | 0:15:49 | 0:15:53 | |
and at a minute particle level. That's the beauty of it. | 0:15:53 | 0:15:57 | |
-Oh, gosh, I could almost beat it down, and we must carry on... -APPLAUSE | 0:15:57 | 0:16:04 | |
-I'm glad you are all excited because it is good. -APPLAUSE | 0:16:04 | 0:16:09 | |
Now, this sounds very existential. When is the present? | 0:16:10 | 0:16:15 | |
I'm not going to fall into that trap! Who's going to say it? | 0:16:15 | 0:16:19 | |
Well, it's not really a trap. It's a genuinely interesting question. | 0:16:19 | 0:16:23 | |
There are different ways of trying to describe what the present might be | 0:16:23 | 0:16:26 | |
but let's talk about the present in terms of archaeology. | 0:16:26 | 0:16:30 | |
Why are there acorns on the sign? Is that connected? | 0:16:30 | 0:16:34 | |
It's the sign for squirrels. | 0:16:34 | 0:16:36 | |
Acorns in the future. Acorns in the past. | 0:16:36 | 0:16:40 | |
Did you not know that squirrels have the capacity to time travel? | 0:16:40 | 0:16:44 | |
They are the only ones who can do that. | 0:16:44 | 0:16:47 | |
They keep it very quiet because the nuts are better in the past. | 0:16:47 | 0:16:51 | |
Archaeologists have an acronym, BP, which means Before Present. | 0:16:51 | 0:16:56 | |
They can date the present. It's an exact date. | 0:16:56 | 0:16:59 | |
January 1st, 1950. | 0:16:59 | 0:17:01 | |
-That's the present? -For archaeologists. | 0:17:01 | 0:17:04 | |
There's a good reason for this. You might be able to work it out. | 0:17:04 | 0:17:07 | |
If you did, I would be very impressed. | 0:17:07 | 0:17:09 | |
-Is it plastics? -Not quite. -Bakelite? | 0:17:09 | 0:17:11 | |
-Is it...? -No. Archaeologists are interested in the distant past. | 0:17:11 | 0:17:16 | |
And, recently, in the last 100 or so years, certain techniques have enabled us to discover... | 0:17:16 | 0:17:23 | |
Carbon dating. | 0:17:23 | 0:17:24 | |
Carbon dating has allowed us to discover how old things are. | 0:17:24 | 0:17:29 | |
In the 1950s, basically, they decided by January 1st, 1950, | 0:17:29 | 0:17:34 | |
we had so screwed up the atmosphere with nuclear testing | 0:17:34 | 0:17:38 | |
that no carbon dating could be trusted after January 1st, 1950. | 0:17:38 | 0:17:44 | |
That is known as the present. | 0:17:44 | 0:17:46 | |
These archaeologists need to learn a bit of physics. | 0:17:46 | 0:17:49 | |
According to Einstein's Theory of Space and Time, which is our best theory of space and time, | 0:17:49 | 0:17:53 | |
there's no such thing as a present moment which spans the universe or even the Earth | 0:17:53 | 0:17:59 | |
or, in fact, even two people moving relative to each other. | 0:17:59 | 0:18:04 | |
It is absurd to think of an event that might be happening now in a galaxy | 0:18:04 | 0:18:08 | |
and me doing this as being simultaneous. | 0:18:08 | 0:18:11 | |
That has no meaning, cosmically, does it? | 0:18:11 | 0:18:14 | |
You can swap the order of them as long as they're not causally connected. | 0:18:14 | 0:18:18 | |
-You know, if I throw a glass... -LAUGHTER | 0:18:18 | 0:18:21 | |
If I was to throw a glass over there and it smashes on the ground, | 0:18:22 | 0:18:26 | |
obviously, I caused it to smash by throwing it. | 0:18:26 | 0:18:29 | |
You can't have the smash before I throw it. | 0:18:29 | 0:18:32 | |
However, say the sun and the Earth, the sun is eight light minutes away, | 0:18:32 | 0:18:38 | |
if the sun exploded now, we wouldn't notice for eight minutes. | 0:18:38 | 0:18:42 | |
For eight minutes, anything that I do here, | 0:18:42 | 0:18:46 | |
I talk and I talk and, four minutes later, I'm still talking. | 0:18:46 | 0:18:51 | |
You can swap the order of those things around | 0:18:51 | 0:18:54 | |
until the point at which they become causally connected. | 0:18:54 | 0:18:57 | |
In that case, until the explosion destroys the earth. | 0:18:57 | 0:19:00 | |
At a quantum level, time can appear to go forwards and backwards | 0:19:00 | 0:19:04 | |
and follow exact rules in whichever way it's going, doesn't it? | 0:19:04 | 0:19:08 | |
Richard Feynman had a theory, which was a legitimate theory, | 0:19:08 | 0:19:11 | |
that there's only one electron in the universe. | 0:19:11 | 0:19:14 | |
We're all made of electrons. | 0:19:14 | 0:19:17 | |
-Slowly. We're all made of what? -Electrons. | 0:19:17 | 0:19:21 | |
How do you spell electron? LAUGHTER | 0:19:21 | 0:19:24 | |
-The Sun has exploded. -LAUGHTER | 0:19:24 | 0:19:27 | |
-We have eight minutes to live. -LAUGHTER | 0:19:27 | 0:19:32 | |
Is it a wine glass or more of a tumbler? LAUGHTER | 0:19:32 | 0:19:36 | |
Richard Feynman, a great physicist, he got a Nobel Prize, | 0:19:37 | 0:19:40 | |
he said that...you see, all electrons are exactly the same. | 0:19:40 | 0:19:44 | |
He said, I think perhaps there's only one in the universe | 0:19:44 | 0:19:48 | |
and it keeps moving backwards and forwards through time | 0:19:48 | 0:19:52 | |
and every time it crosses "now", this sheet that we call "now", | 0:19:52 | 0:19:55 | |
you see an electron, electron, electron. | 0:19:55 | 0:19:59 | |
So all the electrons in my hand, the billions of them, are the same as the electrons in your hand. | 0:19:59 | 0:20:04 | |
It's just one, wandering backwards and forwards in time. | 0:20:04 | 0:20:06 | |
And that was a legitimate view. | 0:20:06 | 0:20:09 | |
I've got a feeling that when you're late for a meeting, | 0:20:09 | 0:20:12 | |
you're an absolute nightmare. | 0:20:12 | 0:20:13 | |
LAUGHTER | 0:20:13 | 0:20:15 | |
"You were meant to be here eight minutes ago." | 0:20:15 | 0:20:18 | |
"Well, actually... If I was to throw a..." | 0:20:18 | 0:20:19 | |
"Oh, God, he's doing it again!" | 0:20:19 | 0:20:24 | |
A man called Arthur Eddington came up with a phrase that | 0:20:24 | 0:20:27 | |
has often been used to describe this nature of time as we perceive it, | 0:20:27 | 0:20:31 | |
which is "time's arrow". | 0:20:31 | 0:20:32 | |
People think of it as going in that direction. | 0:20:32 | 0:20:36 | |
There are limitations to that, is really what you're saying, | 0:20:36 | 0:20:38 | |
as a theory. | 0:20:38 | 0:20:39 | |
Yeah. We don't know how time works at a very fundamental level. | 0:20:39 | 0:20:42 | |
But time's arrow - I got my head around that a bit. | 0:20:42 | 0:20:45 | |
You don't need maths, everything's going forward and as it does, it decays. | 0:20:45 | 0:20:50 | |
-Yes. -So then you understand entropy... | 0:20:50 | 0:20:53 | |
For instance... All you need is an analogy that's pertinent to you, | 0:20:53 | 0:20:57 | |
so in my case, "all relationships", and then you realise...of course! | 0:20:57 | 0:21:01 | |
That perfect 18 months, and then they're dead. | 0:21:01 | 0:21:05 | |
-The second law of sexual dynamics. -Yeah, that's how I... | 0:21:05 | 0:21:09 | |
According to me, that's how I extrapolate. | 0:21:09 | 0:21:12 | |
To make it statistically significant you have to have an awful lot of relationships. | 0:21:12 | 0:21:16 | |
Oh, I do! | 0:21:16 | 0:21:18 | |
And they really do all suffer a form of entropy! | 0:21:18 | 0:21:21 | |
Now, who fancies an ingenious interlude? | 0:21:22 | 0:21:25 | |
I have some exciting props that I'm thrilled about - I love doing this. | 0:21:25 | 0:21:30 | |
Here - candles. See? | 0:21:30 | 0:21:32 | |
Candles. | 0:21:32 | 0:21:33 | |
I'm going to light these candles here. | 0:21:34 | 0:21:38 | |
Red, white and blue. | 0:21:38 | 0:21:39 | |
SUE: Is that from the Ikea Black Mass kit?! | 0:21:39 | 0:21:43 | |
ROSS: Is this the point where we all have to kneel down | 0:21:43 | 0:21:46 | |
-and pray to Jesus's foreskin? -No! | 0:21:46 | 0:21:49 | |
I promise you I'm going to extinguish these candles, right? | 0:21:49 | 0:21:54 | |
I have a jug here. | 0:21:54 | 0:21:55 | |
I'm going to extinguish them using an invisible gas. | 0:21:55 | 0:21:58 | |
Not by liquid - using an invisible gas. I just want you to tell me... | 0:21:58 | 0:22:02 | |
I'll let Brian off, cos he'll know this. | 0:22:02 | 0:22:04 | |
This to him is so "book one, page one" of Boys' Wonder Book of Science, | 0:22:04 | 0:22:08 | |
but that's the level I'm at! I'm putting this powder in first. | 0:22:08 | 0:22:13 | |
-Do we know what the powder is? -Then I put in this liquid. -Custard. | 0:22:13 | 0:22:16 | |
-It's not custard. -Oh, it's...! -I'm going to cover it. Now, watch. | 0:22:16 | 0:22:21 | |
I'm not going to pour the LIQUID onto it, | 0:22:21 | 0:22:22 | |
I'm just going to pour the GAS onto here. | 0:22:22 | 0:22:24 | |
-And out go the candles. -Oooh. -SUE: Oh, I like that! | 0:22:25 | 0:22:29 | |
APPLAUSE | 0:22:29 | 0:22:30 | |
-I've got a feeling... -Do another one. Do something else. | 0:22:32 | 0:22:36 | |
I should be presenting the Royal Institution Christmas lectures! | 0:22:36 | 0:22:40 | |
So can one of you, who isn't a professor at Manchester | 0:22:40 | 0:22:43 | |
and a fellow of the Royal Society, tell me what was going on there? | 0:22:43 | 0:22:47 | |
-Is it magic? -It's not...! -LAUGHTER | 0:22:47 | 0:22:50 | |
-SUE: I think it's carbon dioxide going in. -Yes. | 0:22:52 | 0:22:55 | |
I took sodium bicarbonate, | 0:22:55 | 0:22:57 | |
a very common household thing you might use for indigestion | 0:22:57 | 0:23:00 | |
or for cleaning purposes - and vinegar. | 0:23:00 | 0:23:03 | |
I put them together and they precipitated Co2. Which is...? | 0:23:03 | 0:23:07 | |
Heavier than air. | 0:23:07 | 0:23:08 | |
And simply pouring it there just snuffed out the candles. | 0:23:08 | 0:23:11 | |
I've never seen anyone pour a gas before. | 0:23:11 | 0:23:14 | |
I know, you don't think of gas as being a pourable thing, but anyway. | 0:23:14 | 0:23:17 | |
I can't tell you how relieved I am that it worked. | 0:23:17 | 0:23:20 | |
Well done, everybody. Especially me! | 0:23:20 | 0:23:22 | |
APPLAUSE | 0:23:22 | 0:23:24 | |
If you're ever tempted to carry liquid nitrogen in a lift, | 0:23:25 | 0:23:30 | |
which actually in physics departments... | 0:23:30 | 0:23:32 | |
-Liquid nitrogen is very cold. -It is cold, but they don't LET you carry it in lifts, | 0:23:32 | 0:23:36 | |
because if you spill it, then you get nitrogen gas, and that's heavier than air, | 0:23:36 | 0:23:39 | |
-and it pushes all the oxygen to the top of the lift. -And people suffocate? -Yes. | 0:23:39 | 0:23:43 | |
-Even though it's nitrogen, which the air is, mainly. -A mixture. | 0:23:43 | 0:23:48 | |
Every Al Qaeda cell watching this tonight will be going, "Right!" | 0:23:48 | 0:23:53 | |
-"Where's the nearest tower block?" -Running around with nitrogen! | 0:23:53 | 0:23:56 | |
I remember a chemistry lesson, one of the most beautiful things I'd seen. | 0:23:56 | 0:24:00 | |
Chemistry master came in, someone had prepared some liquid nitrogen - we didn't quite know what it was - | 0:24:00 | 0:24:06 | |
and he came in with a rose he'd just picked from the garden. | 0:24:06 | 0:24:10 | |
He dipped the rose in for a second and then smashed it on the table, | 0:24:10 | 0:24:14 | |
and it shattered like glass into a thousand pieces. | 0:24:14 | 0:24:17 | |
You may say, "how destructive" and yet it was staggeringly beautiful. | 0:24:17 | 0:24:21 | |
The idea that you could alter the state of something at such speed | 0:24:21 | 0:24:24 | |
that it could become...from being the softest, most malleable thing. | 0:24:24 | 0:24:30 | |
-Isn't that lovely? Don't you think that's gorgeous? -ROSS: Beautiful. -It is. | 0:24:30 | 0:24:33 | |
-I think you're humouring me! -No! -You want me to go back to foreskins. -No. | 0:24:33 | 0:24:38 | |
I think it's a hilarious Valentine's Day prank. | 0:24:38 | 0:24:42 | |
"There you go". Wah! "Not for you!" | 0:24:42 | 0:24:45 | |
LAUGHTER | 0:24:45 | 0:24:47 | |
The surface of Saturn's moon, Titan, that's so cold that... | 0:24:47 | 0:24:50 | |
Ooh, hang on. I know a Titan! Titan's the one where the Ewoks live! | 0:24:50 | 0:24:56 | |
Ewok planet! Yay! | 0:24:56 | 0:24:58 | |
You see! | 0:24:58 | 0:24:59 | |
So hang on, I've got it - | 0:24:59 | 0:25:03 | |
so basically, you're saying you can shatter an Ewok. | 0:25:03 | 0:25:06 | |
-Yes! It's got lakes of liquid methane. -Wow! -Cos it's so cold. | 0:25:06 | 0:25:10 | |
And the methane behaves exactly like water on earth | 0:25:10 | 0:25:13 | |
so you get rain - methane rain, methane snow, methane ice | 0:25:13 | 0:25:17 | |
and lakes of methane. | 0:25:17 | 0:25:18 | |
-There's a lake there which is as large as Lake Superior. -SUE: Of methane? | 0:25:18 | 0:25:23 | |
-Which is essentially a fart. Liquid fart. -Exactly that. | 0:25:23 | 0:25:26 | |
I don't want to go there. Strike it off. | 0:25:26 | 0:25:28 | |
If I could stand on a planet | 0:25:28 | 0:25:30 | |
and throw an Ewok into a lake of fart that would just be... | 0:25:30 | 0:25:35 | |
That'd be... SUE: Smash it into a fart lake. | 0:25:35 | 0:25:37 | |
You couldn't, because it would shatter. | 0:25:37 | 0:25:39 | |
Even better! | 0:25:39 | 0:25:41 | |
LAUGHTER | 0:25:41 | 0:25:43 | |
Right, so I could be tossing Ewoks into a lake of fart? Aaah. | 0:25:43 | 0:25:48 | |
Everyone has their own heaven. That's yours. | 0:25:48 | 0:25:52 | |
When you say tossing Ewoks into a lake of fart...?! | 0:25:52 | 0:25:55 | |
LAUGHTER | 0:25:55 | 0:25:57 | |
-Steady. -That's exactly what I meant. | 0:25:57 | 0:26:00 | |
Oh! | 0:26:00 | 0:26:01 | |
You know what? After this show finishes, I'm off. | 0:26:01 | 0:26:05 | |
I don't care, you'll never see me again. "Where is he? "He's off tossing Ewoks again. | 0:26:05 | 0:26:11 | |
"Into his lake of fart. On a pedalo made of smoke." | 0:26:11 | 0:26:14 | |
LAUGHTER | 0:26:14 | 0:26:16 | |
"Wa-wa!" | 0:26:16 | 0:26:18 | |
Is liquid methane flammable in the same way that methane gas is? | 0:26:18 | 0:26:23 | |
This could be one of the great questions on the show. No, but why? | 0:26:23 | 0:26:27 | |
On Titan. | 0:26:27 | 0:26:29 | |
-Why not? Do say. Is there no oxygen? Ah! -Yep - no oxygen. | 0:26:29 | 0:26:33 | |
-SUE: So just fart. -So if there WAS oxygen...? -It would be. | 0:26:33 | 0:26:38 | |
All you're thinking of is things to do in the pub! | 0:26:38 | 0:26:43 | |
Has that ruined it? Not the image of him, tossing an Ewok, | 0:26:43 | 0:26:46 | |
you don't want to go there because you can't light your fart! | 0:26:46 | 0:26:49 | |
LAUGHTER | 0:26:49 | 0:26:52 | |
The great Sydney Smith said heaven was eating foie gras to the sound of trumpets. | 0:26:53 | 0:26:57 | |
You have redefined it as tossing Ewoks on lakes of methane. | 0:26:57 | 0:27:03 | |
Not things to do in HEAVEN, just things to do on Titan. | 0:27:03 | 0:27:06 | |
-Oh, right, Titan! -SUE: That's in the guide book, Things To Do In Titan. | 0:27:06 | 0:27:10 | |
Top Ten in the front of the guide... | 0:27:10 | 0:27:13 | |
"If you only have access to a wookie, you will need a bigger lake." | 0:27:13 | 0:27:18 | |
That's just basic science. I could tell you that. | 0:27:18 | 0:27:24 | |
A test now of your nautical knowledge. | 0:27:24 | 0:27:27 | |
-What variety of lettuce did they serve on board the Titanic? -Iceberg. | 0:27:27 | 0:27:32 | |
Ah! | 0:27:32 | 0:27:33 | |
KLAXON | 0:27:33 | 0:27:36 | |
-Well, bless you for... -I took one for the team, as it were. | 0:27:40 | 0:27:43 | |
You did take one for the team. No, the iceberg lettuce had been developed in Pennsylvania, | 0:27:43 | 0:27:47 | |
but it wasn't available in Europe until many years later. | 0:27:47 | 0:27:51 | |
-Rocket? Lollo rosso? -The answer is, we don't know. | 0:27:51 | 0:27:54 | |
-Oh. -We do know there were 700 heads of lettuce on board. | 0:27:54 | 0:27:57 | |
SUE: You make them sound like heads of state! | 0:27:57 | 0:28:00 | |
The most grand of all the lettuce, the head of lettuce. | 0:28:00 | 0:28:03 | |
Why did they only have 700 lettuce? How many people were on the Titanic? | 0:28:03 | 0:28:07 | |
Either they'd already eaten and that was how much was saved or they just didn't order them. | 0:28:07 | 0:28:11 | |
What, they saved the lettuce, but not the people? | 0:28:11 | 0:28:15 | |
1,500 people died on that ship! | 0:28:15 | 0:28:17 | |
"Get the lettuce, for crying out loud." | 0:28:17 | 0:28:20 | |
No, no, no. I misread my card. It was - hold the front page - | 0:28:20 | 0:28:23 | |
7,000 heads of lettuce. | 0:28:23 | 0:28:26 | |
No wonder the bloody thing sank, it was full of lettuce. | 0:28:26 | 0:28:30 | |
-Lettuces float. -But... | 0:28:30 | 0:28:32 | |
Well, why did it sink, then? | 0:28:32 | 0:28:34 | |
LAUGHTER | 0:28:34 | 0:28:36 | |
Jesus! What is wrong with these people? | 0:28:36 | 0:28:39 | |
-Where do you think the most valuable icebergs are? -Valuable? -Valuable. | 0:28:39 | 0:28:43 | |
-You mean lettuce icebergs or icebergs? -Icebergs. | 0:28:43 | 0:28:46 | |
Not necessarily on earth, but in our solar system. | 0:28:46 | 0:28:49 | |
-Oh. -I'm thinking of Neptune or Uranus. | 0:28:49 | 0:28:52 | |
Um, no. No. No. NO. | 0:28:52 | 0:28:56 | |
It's thought that the crushing pressure might create | 0:28:56 | 0:28:59 | |
oceans of liquid diamond filled with solid diamond icebergs. | 0:28:59 | 0:29:02 | |
-Mm. -Ooh. -I dunno who thinks this. -ROSS: Mariah Carey. | 0:29:02 | 0:29:07 | |
She was the one that thought of that. | 0:29:07 | 0:29:11 | |
LAUGHTER | 0:29:11 | 0:29:13 | |
"How heavy are they? I'll be there!" | 0:29:13 | 0:29:15 | |
STEPHEN LAUGHS | 0:29:15 | 0:29:16 | |
-Does it seem to you to have any value, or...? -Well, yes. | 0:29:16 | 0:29:20 | |
-It could in principle. -There is a lot of pressure there. | 0:29:20 | 0:29:23 | |
Huge pressures, deep down. Yes. | 0:29:23 | 0:29:26 | |
Now, you're on the bridge of the Titanic, all right, | 0:29:26 | 0:29:29 | |
you see that iceberg up ahead, it's slightly to your right. | 0:29:29 | 0:29:34 | |
What order do you give the helmsman if you want him to turn sharply left? | 0:29:34 | 0:29:38 | |
I think that's port. Left is port. | 0:29:39 | 0:29:42 | |
-KLAXON -Oh no! | 0:29:42 | 0:29:44 | |
-What? -The odd thing is, right up until 1933, | 0:29:44 | 0:29:48 | |
you gave the opposite command, because a wheel like that | 0:29:48 | 0:29:53 | |
is only one form of steering a ship - there were tillers | 0:29:53 | 0:29:56 | |
and if you wanted to turn left, you'd push the tiller right. | 0:29:56 | 0:30:00 | |
-You're pushing it to starboard. -Much the same as when you're on a pedalo. | 0:30:00 | 0:30:03 | |
Yes, exactly. Because there were at least five different forms of steering, | 0:30:03 | 0:30:07 | |
on different kinds of ship, it was customary to say if you wanted | 0:30:07 | 0:30:10 | |
to go hard port, you'd shout, | 0:30:10 | 0:30:13 | |
"hard starboard" and they would go left. | 0:30:13 | 0:30:16 | |
But on a jetski, you turn left and right. | 0:30:16 | 0:30:18 | |
So they must have rudders that go in opposition. | 0:30:18 | 0:30:21 | |
But they have a jet, not a rudder. | 0:30:21 | 0:30:23 | |
It's a JET ski. | 0:30:23 | 0:30:25 | |
It's not called a rudder-ski, is it? | 0:30:25 | 0:30:28 | |
Is that how it turns, though? There's the... The press... The jet moves...? | 0:30:28 | 0:30:32 | |
-The jet moves on the... -Does it? -I think so. | 0:30:32 | 0:30:35 | |
-Yeah. -Brian, do you know? So far, you've known everything! | 0:30:35 | 0:30:38 | |
-Have you ever seen a jetski with a rudder? -Don't think they have rudders, no. | 0:30:38 | 0:30:43 | |
SUE: They have a jet. | 0:30:43 | 0:30:44 | |
It's a JET ski! What are we not getting about the jet... | 0:30:44 | 0:30:48 | |
Sorry. | 0:30:48 | 0:30:50 | |
All right. | 0:30:50 | 0:30:51 | |
I'd like you to fill in the gaps in these slogans | 0:30:53 | 0:30:57 | |
for various places or institutions. | 0:30:57 | 0:31:00 | |
We start with County Donegal's slogan, OK? | 0:31:00 | 0:31:03 | |
-"Up here it's..." -Windy. | 0:31:03 | 0:31:05 | |
-SUE: Green. -It really is windy there. -Different. -It's different. | 0:31:05 | 0:31:09 | |
Up here it's different. | 0:31:09 | 0:31:11 | |
That's Donegal's slogan. | 0:31:11 | 0:31:13 | |
You'll be pleased to know. Northumbria Police, however... | 0:31:13 | 0:31:16 | |
"Total..." | 0:31:16 | 0:31:20 | |
Gobshites! | 0:31:20 | 0:31:22 | |
Arrest. | 0:31:22 | 0:31:23 | |
"Total policing", I'm sorry to say. | 0:31:23 | 0:31:25 | |
-Total brutality. -Total brutality! | 0:31:25 | 0:31:28 | |
Total policing. | 0:31:28 | 0:31:31 | |
"Welcome to Northamptonshire - let yourself..." | 0:31:31 | 0:31:34 | |
SUE: Down. | 0:31:34 | 0:31:35 | |
LAUGHTER | 0:31:35 | 0:31:38 | |
-Leave. -ROSS: Let yourself out. | 0:31:38 | 0:31:40 | |
LAUGHTER | 0:31:40 | 0:31:42 | |
At the nearest exit! | 0:31:42 | 0:31:44 | |
No, poor Northamptonshire. Charming place. "Let yourself..." | 0:31:44 | 0:31:48 | |
-SUE: Breathe. -Relax. | 0:31:48 | 0:31:49 | |
-Breathe is good, relax is... -Go. -Go is not bad. | 0:31:49 | 0:31:53 | |
Grow, apparently. | 0:31:53 | 0:31:54 | |
-Grow. -That is disgusting. -Let yourself go! | 0:31:54 | 0:31:56 | |
Let yourself go! | 0:31:56 | 0:31:58 | |
ROSS: Give yourself a stiffie. | 0:31:58 | 0:32:00 | |
..a large hard-on. | 0:32:00 | 0:32:01 | |
This is an optimistic one here. | 0:32:01 | 0:32:03 | |
"Welcome to Tower Hamlets. Let's make it..." | 0:32:03 | 0:32:07 | |
-ASBO week. -Out alive. | 0:32:07 | 0:32:09 | |
Let's make it out alive! | 0:32:10 | 0:32:13 | |
LAUGHTER | 0:32:13 | 0:32:15 | |
Let's make it happen. | 0:32:19 | 0:32:21 | |
-Let's make it happen. -Let's make it happen. | 0:32:21 | 0:32:24 | |
there's another slogan which said, "It did happen on Friday 17th. | 0:32:24 | 0:32:28 | |
"If you witnessed it..." | 0:32:28 | 0:32:30 | |
LAUGHTER AND APPLAUSE | 0:32:30 | 0:32:32 | |
Oh, dear. | 0:32:36 | 0:32:37 | |
In 2007, the Scottish Parliament and the Tourist Board Scotland | 0:32:39 | 0:32:43 | |
spent £125,000 on launching a new slogan. | 0:32:43 | 0:32:48 | |
I want you to find the word they came up with. | 0:32:48 | 0:32:50 | |
They paid some very expensive people. "Welcome to..." | 0:32:50 | 0:32:53 | |
-SUE: The heart attack capital of Europe. -It's got to be Scotland. | 0:32:53 | 0:32:56 | |
Scotland is the right answer! | 0:32:56 | 0:32:58 | |
What genius! I mean, God! That was the very best one I've ever seen. | 0:32:58 | 0:33:03 | |
All American states have their mottos as well. | 0:33:03 | 0:33:06 | |
Kentucky decided they would spend money on a new phrase for Kentucky. | 0:33:06 | 0:33:11 | |
There are two things that most Americans know Kentucky for - | 0:33:11 | 0:33:15 | |
horse racing, Kentucky Derby... | 0:33:15 | 0:33:16 | |
-Fried chicken. -No, they don't really know it for that. | 0:33:16 | 0:33:19 | |
ROSS: It's finger lickin' good. | 0:33:19 | 0:33:21 | |
The Kentucky Derby is one and the other is bourbon whiskey. | 0:33:21 | 0:33:25 | |
They came up with a two word phrase | 0:33:25 | 0:33:27 | |
that embraced both racing and whiskey, | 0:33:27 | 0:33:29 | |
and I just think it is genuinely genius. | 0:33:29 | 0:33:32 | |
-Drunk horses. -No. Every time you cross the state line, | 0:33:32 | 0:33:35 | |
you see it, you think actually they were worth their money. | 0:33:35 | 0:33:38 | |
It just says, "Unbridled spirit." | 0:33:38 | 0:33:41 | |
That is a bit cool. I think that's very good. | 0:33:41 | 0:33:43 | |
I think that's class, you know? | 0:33:43 | 0:33:45 | |
-It's not finger lickin' good though, is it? -No, it isn't. | 0:33:45 | 0:33:49 | |
Though I would have you know, and one doesn't like to boast, | 0:33:49 | 0:33:52 | |
I'm just going to anyway, but I am actually Kentucky's Colonel. | 0:33:52 | 0:33:56 | |
The Governor appoints certain people to be Kentucky Colonels | 0:33:56 | 0:34:00 | |
and, in theory, I could be called up | 0:34:00 | 0:34:02 | |
in defence of the Commonwealth of Kentucky as it calls itself. | 0:34:02 | 0:34:05 | |
-LAUGHTER -I know, it's unlikely to happen. | 0:34:05 | 0:34:09 | |
"Oh, bothering blast! I can't get the bloody..." | 0:34:11 | 0:34:14 | |
I shall throw a family thrift bucket at them. | 0:34:14 | 0:34:17 | |
I did a documentary where I visited all the states of America | 0:34:17 | 0:34:20 | |
and they always go, "Which is your favourite state?" | 0:34:20 | 0:34:23 | |
It's very, very hard to answer, but as it happened, about the best time | 0:34:23 | 0:34:26 | |
I had was in Kentucky. I thought, "I'll stick to that as my answer." | 0:34:26 | 0:34:30 | |
So I said Kentucky, and about three months later, | 0:34:30 | 0:34:33 | |
I got a letter from the Governor of Kentucky with a certificate | 0:34:33 | 0:34:36 | |
and, of course, with a baseball cap and various other objects, | 0:34:36 | 0:34:40 | |
saying that I had been made a colonel in the army of Kentucky. | 0:34:40 | 0:34:43 | |
There you are. You shall call me Colonel Fry from now on. | 0:34:43 | 0:34:46 | |
-I have the key to the city of Port Pirie in Australia. -Do you? | 0:34:46 | 0:34:50 | |
I was doing a gig and I was talking to a bloke. Turned out he was | 0:34:50 | 0:34:53 | |
the mayor, so I went, "Can I have the key to the city?" | 0:34:53 | 0:34:56 | |
And he went, "Yeah, all right then." | 0:34:56 | 0:34:59 | |
LAUGHTER | 0:34:59 | 0:35:00 | |
I didn't want him to back out, so I said, "Where's your offices?" | 0:35:00 | 0:35:04 | |
"On the high street." "I'll be down there tomorrow." | 0:35:04 | 0:35:07 | |
So I turned up, he got a shed key and a ribbon and went, "There you go." | 0:35:07 | 0:35:12 | |
So there wasn't much Latin spoken or anything like that. | 0:35:12 | 0:35:15 | |
No, there wasn't a ceremony, I just turned up to the offices. | 0:35:15 | 0:35:19 | |
It was just a shed key in a bag. | 0:35:19 | 0:35:22 | |
You'll like this story about driving in America. | 0:35:22 | 0:35:25 | |
I got a sat nav and we drove from Atlantic City and the car hire place | 0:35:25 | 0:35:30 | |
was just off Lexington Avenue in Manhattan. | 0:35:30 | 0:35:33 | |
So I put "Lexington Avenue" in the sat nav | 0:35:33 | 0:35:36 | |
-and it took me to Lexington Avenue on Staten Island. -Oh, no. | 0:35:36 | 0:35:39 | |
After about an hour, I was thinking, "This isn't feeling quite right," | 0:35:39 | 0:35:44 | |
and then it took me down a residential street off the freeway. | 0:35:44 | 0:35:49 | |
Then it just said, "You have reached your destination." | 0:35:49 | 0:35:53 | |
No, that's someone's house. | 0:35:53 | 0:35:56 | |
I was expecting, you know, yellow cabs and skyscrapers... | 0:35:56 | 0:36:00 | |
I've just done voice for them, so that if you have TomTom or Garmin... | 0:36:00 | 0:36:04 | |
You drive along and it goes, "Now the interesting thing..." | 0:36:04 | 0:36:09 | |
LAUGHTER AND APPLAUSE | 0:36:09 | 0:36:11 | |
"Now, now, now... | 0:36:14 | 0:36:16 | |
"The most darnedest thing, you would not believe it, but..." | 0:36:16 | 0:36:20 | |
Did you do as if you were talking to me, that's the worrying thing. | 0:36:20 | 0:36:23 | |
Left, you moron! | 0:36:23 | 0:36:26 | |
If you take a wrong turn instead of making a U turn, does the hooter come on? BEEP! BEEP! | 0:36:26 | 0:36:32 | |
I've put my voice on Katie's. When she drives, it's me. | 0:36:32 | 0:36:34 | |
-Oh, that's nice. -You can record it, "Left! Left! Left! LEFT!" | 0:36:34 | 0:36:39 | |
LAUGHTER | 0:36:39 | 0:36:42 | |
-Which is funny the first couple of times. -Yes, that's the problem. | 0:36:42 | 0:36:46 | |
I had a sat nav, after Port Pirie, | 0:36:46 | 0:36:48 | |
and the Nullarbor Plain in Australia... | 0:36:48 | 0:36:51 | |
Between Adelaide and Perth. | 0:36:51 | 0:36:54 | |
Yeah, the longest straight road in the world | 0:36:54 | 0:36:57 | |
and I sat on my bike, turned it on and it said, | 0:36:57 | 0:37:01 | |
"Drive forward for two days." | 0:37:01 | 0:37:05 | |
And then it went, "Then turn left." | 0:37:05 | 0:37:09 | |
LAUGHTER AND APPLAUSE | 0:37:09 | 0:37:12 | |
The stupid thing was, it was such a long road, | 0:37:16 | 0:37:18 | |
I missed the left-hand turn. | 0:37:18 | 0:37:20 | |
You know that sat nav uses relativity? Do you know that? | 0:37:20 | 0:37:25 | |
Oh, tell us. | 0:37:25 | 0:37:26 | |
I do know this. Is this right, because of the gravitational pull | 0:37:26 | 0:37:33 | |
I do know this, up in space, if they weren't regulated, | 0:37:33 | 0:37:37 | |
it would be a year out? Is that right? | 0:37:37 | 0:37:40 | |
It'd be 38,000 nanoseconds per day... | 0:37:40 | 0:37:46 | |
A year! 38,000, pah! | 0:37:46 | 0:37:49 | |
Because the rule of thumb is | 0:37:49 | 0:37:51 | |
light travels almost precisely one foot in one nanosecond, | 0:37:51 | 0:37:55 | |
so a foot is one light nanosecond. | 0:37:55 | 0:37:58 | |
So 38,000 nanoseconds a day is 38,000 feet a day. | 0:37:58 | 0:38:00 | |
That's how much it'd drift if you didn't take account of the fact that time... | 0:38:00 | 0:38:05 | |
Because of the gravitational field. | 0:38:05 | 0:38:07 | |
So the point is that the maths built into the processors | 0:38:07 | 0:38:11 | |
in these geo-stationary satellites, | 0:38:11 | 0:38:14 | |
has to take into account Einsteinian physics? | 0:38:14 | 0:38:16 | |
Yes. I visited the GPS headquarters, it's in Colorado. | 0:38:16 | 0:38:21 | |
-ROSS: I bet that's easy to find. -This is honestly true. | 0:38:21 | 0:38:24 | |
We typed it into a sat nav and it took us into a field. | 0:38:24 | 0:38:29 | |
It didn't take us there. | 0:38:29 | 0:38:30 | |
But when they launched it, the US Air Force was very suspicious | 0:38:30 | 0:38:34 | |
of this Swiss bloke and his relativity nonsense, | 0:38:34 | 0:38:39 | |
and had the option of not correcting, because they could not believe that | 0:38:39 | 0:38:43 | |
time passes a different rate in orbit than it does on the ground. | 0:38:43 | 0:38:47 | |
If you took a sat nav, a normal domestic sat nav, right, | 0:38:47 | 0:38:50 | |
and put it in space rocket, | 0:38:50 | 0:38:52 | |
and went up into space towards the satellite, what would happen? | 0:38:52 | 0:38:57 | |
Very good. That is exactly the kind of experiment that Einstein liked to do, isn't it? | 0:38:57 | 0:39:02 | |
Yeah, me and Einstein are like that. | 0:39:02 | 0:39:05 | |
Listen, we could go on like this for ever, but we're simply not going to. | 0:39:05 | 0:39:09 | |
We stumble now into the gaping moor of general ignorance. | 0:39:09 | 0:39:12 | |
Fingers on buzzers, quick as you can, | 0:39:12 | 0:39:15 | |
what's the definition of a galaxy? | 0:39:15 | 0:39:17 | |
BABY GURGLES | 0:39:17 | 0:39:19 | |
-Yes! -'Nobody knows.' | 0:39:19 | 0:39:22 | |
You're right. Essentially there is no absolutely official decision, | 0:39:22 | 0:39:26 | |
but there are scientists trying to work out | 0:39:26 | 0:39:29 | |
precisely what a galaxy might be. | 0:39:29 | 0:39:31 | |
Duncan Forbes of Swinburne University in Australia | 0:39:31 | 0:39:34 | |
and Pavel Kroupa of the University of Bonn in Germany. | 0:39:34 | 0:39:37 | |
They have a launched an online survey and we've been allowed | 0:39:37 | 0:39:41 | |
to be the first to see the results of the poll. | 0:39:41 | 0:39:43 | |
But based on that, there is already one new galaxy | 0:39:43 | 0:39:46 | |
that fits - globular cluster Omega Centauri | 0:39:46 | 0:39:49 | |
seems to qualify, according to those criteria, as a galaxy. | 0:39:49 | 0:39:54 | |
In the Hubble deep field image, this year the most distant galaxy | 0:39:54 | 0:39:58 | |
ever discovered was found in that photograph, | 0:39:58 | 0:40:01 | |
and it's 13.2 billion light years away. | 0:40:01 | 0:40:05 | |
The Earth's been here for five billion years, | 0:40:05 | 0:40:08 | |
so for most of the journey of the light from those galaxies you can see in that image, | 0:40:08 | 0:40:13 | |
the Earth wasn't even here, it wasn't formed. | 0:40:13 | 0:40:16 | |
It formed when they were almost halfway. | 0:40:16 | 0:40:18 | |
The further away you look, the further towards the birth of the universe you're looking. | 0:40:18 | 0:40:23 | |
How do we know which direction to look? Did it begin over there, | 0:40:23 | 0:40:26 | |
or over there? Or we on the surface of a balloon? | 0:40:26 | 0:40:28 | |
It began here, so the Big Bang happened here in every point in space. | 0:40:28 | 0:40:31 | |
The picture is that space and time began at that point, | 0:40:31 | 0:40:35 | |
and it's been stretching ever since, so all of space and all of time | 0:40:35 | 0:40:39 | |
in some sense were there at the Big Bang, | 0:40:39 | 0:40:41 | |
so the Big Bang happened everywhere. There's no centre. | 0:40:41 | 0:40:45 | |
ROSS: You can't really see it because black's a very slimming colour! | 0:40:45 | 0:40:50 | |
It's true. I just think it's all beautiful, wonderful and amazing. | 0:40:50 | 0:40:55 | |
So name an insect that spins a web. | 0:40:55 | 0:40:56 | |
-BABY GURGLE -Yes, Sue. | 0:40:56 | 0:40:59 | |
Er, spiders. | 0:40:59 | 0:41:00 | |
ALARM BLARES | 0:41:00 | 0:41:03 | |
-It's an arachnid! -It's an arachnid, Susan! | 0:41:03 | 0:41:07 | |
-What's the difference? -It's got legs... Body! | 0:41:07 | 0:41:11 | |
Insects have how many legs? | 0:41:11 | 0:41:13 | |
-Six. -Erm...two, four, six, eight. -And spiders have eight. | 0:41:13 | 0:41:16 | |
And insects have six. | 0:41:16 | 0:41:18 | |
It was particularly an insect that spins a web I was after. | 0:41:18 | 0:41:22 | |
-The difference is the pedantry of biologists. -It is, you're right! | 0:41:22 | 0:41:26 | |
-Is there a six-legged spider? -There isn't a six-legged spider as far as I know. | 0:41:26 | 0:41:30 | |
-Does a moth spin? -Yes. There's a very famous moth whose lava | 0:41:30 | 0:41:33 | |
-is responsible for this tie. -The silkworm. -The Bombyx, the silkworm, | 0:41:33 | 0:41:37 | |
is the lava of a moth, but it's not really a web, | 0:41:37 | 0:41:39 | |
but there are insects that spin webs. | 0:41:39 | 0:41:42 | |
These are cocoon-type things for them to pupate inside. | 0:41:42 | 0:41:46 | |
Goats, also. Goats obviously aren't insects, but this does sound really | 0:41:46 | 0:41:50 | |
like science fiction of the worst possible kind. | 0:41:50 | 0:41:52 | |
-Spin? -Goats, yes. Scientists have implanted the silk producing gene | 0:41:52 | 0:41:58 | |
from spiders into goats. | 0:41:58 | 0:42:00 | |
When the goats lactate, their milk contains silk, | 0:42:00 | 0:42:04 | |
which can be harvested, dried and spun into fibres. | 0:42:04 | 0:42:08 | |
It's a nightmare if you've ever been caught in a goat web. | 0:42:08 | 0:42:11 | |
It's horrible. I'll be there for days sometimes. | 0:42:11 | 0:42:14 | |
There's a lot you can get out of goat - you can get cheese, wool, | 0:42:14 | 0:42:18 | |
-sex... Sorry! You can get... -LAUGHTER | 0:42:18 | 0:42:20 | |
I don't know where that came from. | 0:42:20 | 0:42:22 | |
Anyway, basically, they keep giving, goats. | 0:42:22 | 0:42:26 | |
-Just put the back legs in your wellies. -Oh! I-I-I... | 0:42:26 | 0:42:30 | |
Anyway, the point is several insects do spin webs | 0:42:30 | 0:42:34 | |
of which the best known are the web spinners. | 0:42:34 | 0:42:36 | |
Spiders, however, are not insects. | 0:42:36 | 0:42:39 | |
And finally the scores, which are as baffling as always. | 0:42:39 | 0:42:44 | |
It's fascinating, it's remarkable, it's wonderful it's exciting. | 0:42:44 | 0:42:47 | |
In last place, despite an extraordinary performance | 0:42:47 | 0:42:50 | |
and remarkable knowledge in many areas, I'm afraid it's Sue Perkins with -17. | 0:42:50 | 0:42:54 | |
APPLAUSE | 0:42:54 | 0:42:56 | |
A highly creditable third place with -6, Ross Noble. | 0:42:58 | 0:43:03 | |
APPLAUSE | 0:43:03 | 0:43:05 | |
But surely putting himself in contention for a Nobel Prize | 0:43:07 | 0:43:10 | |
sometime in the next few years, on +2 Alan Davies. | 0:43:10 | 0:43:14 | |
CHEERING AND APPLAUSE | 0:43:14 | 0:43:18 | |
And it can come as no surprise that the mop top from Oldham is our winner. | 0:43:18 | 0:43:24 | |
On +5, it's Professor Brian Cox. | 0:43:24 | 0:43:28 | |
CHEERING AND APPLAUSE | 0:43:28 | 0:43:30 | |
It only remains for me to thank Brian, Sue, Ross and Alan, | 0:43:35 | 0:43:39 | |
and to leave you with this observation from Will Rogers - | 0:43:39 | 0:43:43 | |
an ignorant person is one who doesn't know | 0:43:43 | 0:43:45 | |
what you have only just found out. | 0:43:45 | 0:43:47 | |
Good night. | 0:43:47 | 0:43:49 | |
Subtitles by Red Bee Media Ltd | 0:44:02 | 0:44:04 | |
E-mail [email protected] | 0:44:04 | 0:44:06 |