15/11/2011 Newsnight Scotland


15/11/2011

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employment. We'll give you all the help to do so. We must stop there.

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Tonight on Newsnight Scotland, they claim they're close to pinning down

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the elemental particle which has eluded science for a generation. We

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look at the Scottish academic contribution and ponder the

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significance of Higgs Bosun for the rest of us.

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Good evening. Science is closing in on the most elusive thing in the

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universe. A symposium that's just begun in Paris is to be told the

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latest developments in the hunt for the Higgs Boson, the theoretical

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particle that gives everything else its mass. The theory behind the

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Higgs came out of Edinburgh university in the 1960s. Now dozens

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of scientists from Scotland are among those looking for it at the

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European nuclear research centre CERN. One of them has told this

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programme that the breakthrough is just months away. From Switzerland,

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here's our science correspondent This is Mission Control for a time

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machine. Science is turning the clock back 13.7 billion years to a

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point less than a billionth of a second from the Big Bang. To do

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that, CERN has built the world's biggest machine beneath the border

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between France and Switzerland, the large Hadron Collider. This is the

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capital of superlatives, the coldest place in the universe is

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here. The hottest place in our galaxy is here, so is theentiest

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space - a single proton going around the large Hadron Collider,

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all 27 kilometres of it. It can go around there 11,000 times every

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second. Dozens of physicists from Glasgow

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and Edinburgh Universities are working here alongside colleagues

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from across Europe. The large Hadron Collider is the world's

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highest energy colliding machine. It accelerates protons up to 7

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trillion electron votes. That is then converted into new matter we

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hope, and what we aim to do is to discover new particles.

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Among them, potentially the most significant particle of them all.

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Whether or not an apple was ever really involved, Isaac Newton was

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sure it was a gravitational force, but what newtonian physics and

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indeed Einstein couldn't show is why even if you take this apple

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into the weightlessness of space, it will still have mass. What gives

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it mass? The prevailing theory is a fundamental particle gives that

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property of mass to everything else in the universe. The Higgs Bosun

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was first postulated in Scotland along the with the man who came up

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to it in the '60s - has had a little trouble explaining it in

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layman's terms. It's - eh, it's - it's - I mean, it's the relation

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between waves and particles, electromagnetic waves, photoons -

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waves in this quantity, which oscillates up and down that trough

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have a quanto which are called the Higgs Bosun. That probably tells

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you nothing. Finding the Higgs Bosun has been

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even more difficult. Only the large Hadron Collider has the power to

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bring it within reach. It accelerates a stream of particles

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to almost the speed of light and does the same to a second stream

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travelling in the opposite direction. Then the two streams are

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smashed head on inside one of four huge underground detectors. The

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hottest place in our galaxy is a hundred metres below my feet. It's

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the centre of the At his detector, just one of the experiments ranged

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around the large Hadron Collider. If you think about it as a camera

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that takes 40 million pictures every second, then you've got Atlas

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just about right. That's what it looks like, except in real life

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it's even bigger - this big. It took 15 years to build, and some of

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the most sensitive components were made in Scotland. To underline the

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scale of the enterprise, the Atlas control room is in Switzerland, the

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central control is in France, but how close has this brought us to

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the Higgs? Imagine a house with many rooms. A house with exactly

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signature rooms, OK? We have - and what we do is we open the doors of

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each room and say, the Higgs is not here. It is not here. It is not

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here, and today we are left with one room, and we should - this room

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- we should be able to open the door and decide if the Higgs exist

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or doesn't exist by the next few months.

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None of this would have been possible without vast quantities of

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computing power. That power is used to analyse the results of real

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collisions and to simulate what Higgs event might look like.

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simulate currently about two billion events, and each event

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takes about 20 minutes to simulate, so this is - it would take you

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maybe 75,000 years on one computer to try and do this. Instead of

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doing that we have hundreds of thousands of CPUs across the grid,

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and then we run these simulations all in parallel. It takes a massive

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infrastructure to try to do that, and some of that infrastructure is

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located here at CERN. There's many sites that are located all across

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the world. In particular, there's some Scottish sites as well. Ph.D

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students from Edinburgh and Glasgow Universities are among the

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thousands working here. It's not just high-energy physics. It's high

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pressure too. There is a lot of, like, pressure around and a lot of

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requirements, and we are really trying to work hard and to get the

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results as soon as possible. currently a fourth-year Ph.D

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student, so I feel a lot of pressure. I have to submit in a few

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months' time, so I am writing my these's, trying to finish the

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analysis, because when everything is exciting, I don't want to be

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writing. I want to be on the front line of it. None of this is cheap,

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although arguably, CERN has already paid for itself by inventing the

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web. We want to do these particle

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physics experiments and look at all of these particles coming off you

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might say, where does that fit in with the rest of the world? It's

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very abstract, but in fact, these are now being applied to medical

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science and could replace X-rays or PET scanners, and these could

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reduce the doses you give to people when you want to diagnose illnesses.

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For now, though, most attention is on finding the Higgs Bosun. What if

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they throw open the door of that last room, and it's not there?

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it's not there, that would be even more interesting for us. Of course,

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that's the whole point that we've gone on this great trail of

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discovery, and then what we were hoping to find was the Higgs

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particle. It's the simplest - it's Occam's Razor. It's the simplest of

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all things that we see is through the Higgs Particle. If it doesn't

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appear in the way we think it will appear, then that'll really get the

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community as a whole really scratching their heads because

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essentially all of our theoretical understanding which started with

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Peter Higgs in the '60s in Edinburgh, that's now going to have

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to move on in some new direction, which, to be honest, we don't know

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what direction that would be. has been running for more than half

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a century. Here sophisticated pieces of equipment that once won

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Nobel prizes are now garden ornaments. One day the large Hadron

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Collider will also be history. Until then, questions like, how

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many dimensions are there? Will be enough to be getting on with.

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I'm joined now by Glasgow university physics professor Tony

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Doyle, who's been working on the Hadron project, as you saw in the

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film there. And in Edinburgh is Heriot Watt University vice

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principal Professor Julian Jones, whose work has been more in the

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field of applied physics. Just on that film, Tony Doyle, 59

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rooms - you're in room 60. We're in room 60, which is quite exciting,

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right? You've gone through all the possibilities up to this point.

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We're left with a small window. It's not even a door. It's now a

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small window that we're opening. It may or may not... Are you still an

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optimist this thing exists? I am an optimist that in the next year

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we'll certainly determine whether or not the Higgs Bosun exists in

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the way that is predicted. Before we broaden this - just explain to

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me, what this would show - it would give us an explanation within

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standard physics as we know it of why particles have mass. That's

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basically it. That's right, so how - so the way we understand forces

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and matter and how they interact is through these particles. What we

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don't understand is why these particles have mass, and

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fundamentally, the Higgs Bosun gives mass to all of those other

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particles. But what it doesn't do is give us the grand unified theory,

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does it, which is to unite quantum theory with relativity. That would

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still need a theory of gravity, which it wouldn't give us.

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Absolutely. That's beyond us, and in fact, we don't have experiments

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- even though the scale of the large Hadron Collider is certainly

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very large, right? It's this 27- kilometre... Bigger? We'll need

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something that can go back to beyond a billionth of a second

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after the Big Bang, right, so way, way back to something called the

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Plank Scale. That's not going to challenge us for many, many years

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to come. Julian Jones, I am just wondering - the excitement

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generated by this - do you have a - you're trying to get young people

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in Scotland interested in science. It must be possible surely too use

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this as almost a magnet - is probably the wrong phrase to use,

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given what we have just been talking about. Absolutely, and we

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already see it - demand for undergraduate courses in the basic

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sciences and physics has certainly grown in recent years. It's a very

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good thing too. When you say it's grown, has it grown because more

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young people are going through higher education, or has the demand

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for science subjects grown relative to the demand for humanity

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subjects? Yes, it's grown in relative terms. I think there are

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two reasons for that. Part of that is because of the philosophical

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appeal of things like the kind of work that Tony and his colleagues

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do. It's partly too I think because of a realisation that that kind of

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education contributes to a modern technological economy, and there is

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a good chance of getting a worth while job out of it. Is it a

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broader thing than just, I can get a job? Heavens, yes. I think it's a

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job which contributes, and surely almost everybody watching this

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programme will feel that it would be worthwhile to rebalance the

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economy by good, high-value manufacturing, and I think that's

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inspiring too. There has been a culture of change, hasn't there? 30

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years ago, science had a bit of a bad image. It was Dr Strangelove,

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guys that make nasty things like chemical warfare, whereas now

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people look at this and think, my gosh, that's exciting. Computing

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and all the rest of it people think is really cool. There has been a

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whole change of image. For me, the inspiration was the Apollo

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programme. For people my age, that was what inspired us. Now I think

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we have moved on. Particle physics really has captured the imagination

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of the public as a whole. That's the first step in terms of

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inspiring the next generation of physicists, so that's what we're

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doing next. That's what Julian was saying. Actually, there are now

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more people interested in science, technology, engineering and

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mathematics. Do you think we should be doing more to get a sort of

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public understanding of science, say, in - amongst your people,

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perhaps, in schools? I know this stuff is very, very complicated.

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Absolutely. But the way you explain it, you can start to see why it's

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so exciting. There is a much clearer understanding now amongst

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those who practising science that there's a responsibility to explain

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our work to a wider work to an audience, and I'm sure Tony's

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university is exactly the same as mine. We spend a good deal of time

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nowadays going out into schools and working through our learned

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societies just to try to communicate better than we have

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done before, and we're seeing the benefits of it as well. I am

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curious, Tony Doyle - you know, if people watch this and say, what's

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this got to do with the price of fish? What does it have to do with

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the price of fish? Famously, non- stick plans, lasers, quantum

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mechanics, and particle physics - what? The world-wide web, of course,

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which we needed in the '90s, so when I was a younger scientist then,

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I needed to communicate with... order to get this massive - and as

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we explained in the film there, it's almost like parallel

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programming is involved in this going... Yes. They invented the

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world-wide web. That's what we did in the '90s. The next step was the

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grid. So it's not the particles themselves that necessarily have

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the implications. It's the development of the instruments that

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allow you to eventually say, gosh, we think we have found it. That's

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right. We have to leave it there. Thank you very much indeed.

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A very quick look at tomorrow's That's all we have time for tonight.

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I'll be back again tomorrow. Until Hello. Lots of cloud and mist

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around overnight. One or two fog patches too. It all adds up to a

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pretty grey start on Wednesday. Like obtuse, some places will

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brighten up with a little bit of sunshine, but for many, it will

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stay rather glum, particularly in these western areas, to the west of

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the Pennines across the West Indies, expect fairly cloudy day. In the

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east, we could get sunshine. Where we get the sunshine, 12-13 Celsius.

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We could see 12-13 Celsius in the west, but outbreaks of rain are

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working across Devon and Cornwall. That same area of rain will push

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into the west of Wales during the afternoon. Further north across

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Northern Ireland, some brightness is possible early on, but overall,

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a cloudy afternoon, a little bit of drizzly rain here at times too to

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end the day. For most of Scotland, it should be dry. Lots of cloud

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across central and Southern Scotland. In the north, we may well

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get some sunshine, though again, we might get stubborn fog patches.

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Thursday night, areas of rain working northwards. Rain may return

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to parts of Northern Ireland and Scotland late on Thursday. For

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England and Wales, Thursday promises some bright or sunny

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spells. Again, where the sun comes out, temperatures into the teens.

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It will start cloudy across Eastern England Thursday. It may take a

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