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This winter The Delphic Oracle,by Geneva's Miméscope company in collaboration with CERN, ran for an extended season in the pit that houses the Delphi experiment at CERN's LEP electron-positron collider. Using a matter-antimatter collider as the scene, the play focused on Paul Dirac's mathematical discovery of antimatter symmetry.
Writing the script was a challenge - presenting the ideas of antimatter as entertainment, not as a scientific seminar. Renilde Vanden Broeck of CERN's press office, following a diploma course in Science Communication at the University of London, chose to present the idea behind and the build-up to The Delphic Oraclefor her course dissertation.
In the following extract, Renilde describes some obstacles encountered on the way to presenting antimatter on stage.
Just two weeks before opening night, Anne Gaud McKee of the Miméscope company and I are walking to CERN's reception area. We are both very excited about the forthcoming play's freshly printed posters and leaflets. She is picking them up to have them distributed all over Geneva. I tell her about the first interviews she will have to do tonight and that the press is really picking up. She is very excited and suddenly exclaims: "You haven't heard the last yet: we changed the whole script!"
Next, the 0.2-millimeter proton beam passes through 10 dilution magnets, which cause the protons to fan out until the beam has thickened to a lower-intensity diameter of 1.5 mm.
Now fattened to the width of a human hair, the beam continues down the tunnel to the beam-dump cavern. Inside waits a cylindrical block of a dense, absorptive graphite composite that is 8 meters long and 0.7 meters in diameter.
The 10-ton graphite cylinder is encased in 1000 metric tons of steel and concrete. Why not just make the whole thing out of lead or another heavy metal? It turns out that graphite is the only material whose low density and high melting point can resist the ravages of the proton beam. In experiments, researchers found that an 86-microsecond exposure of the beam would bore a hole 40 meters into a block of copper.
Even though the beam’s damage potential has now been reduced by its increased girth, the beam would still handily eat through the graphite composite cylinder. So instead of letting it burn a single 1.5-mm-wide hole into the cylinder, CERN engineers designed the system to “scan” the beam onto the face of the cylinder, much as the electron beam is scanned in a cathode-ray-tube television screen. To ensure that the intense beam never lingers too long in one place, it is scanned as a pattern—which vaguely resembles the letter e—onto the cylinder.
The E at Delphi
In the pronaos (vestibule) of the ancient Oracle of Delphi, so it is said, were three inscriptions on the walls. The first of these, and the most famous, read Gnothi seauton—'Know thyself'—while the second read Meden agan—'Nothing in excess'. The third was merely the letter E: a capital epsilon. Plutarch's essay on the meaning of the E, in which various thinkers propose different explanations, is our only literary source for the object. Not much is clear about the E; in fact, it is even suggested that there are three of them: (continued)
(resumed)
The quest for the meaning of the E acquires an epic significance in Plutarch's essay: 'Our kind Apollo, in the oracles which he gives his consultants, seems to solve the problems of life and to find a remedy, while problems of the intellect he actually suggests and propounds to the born love of wisdom in the soul, thus implanting an appetite which leads to truth.' The wonder occasioned by enigmas like the Delphic E is thus for Plutarch the impetus to philosophical wisdom.
Originally posted by NorthWolfe CND
Question: Do you know if the LHC will be used to study variations in the speed of light?
If the LHC folks had managed to get one proton to go around the 17-mile tunnel once yesterday, CERN would have declared it a huge success. Well, by the end of the day they sent a beam of protons around the ring hundreds of times. I’d say they blew away expectations!
At ATLAS today, everyone was gushing about yesterday’s success, and about the data we had in our hands. The LHC people decided to put a collimator in front of ATLAS yesterday for several hours, resulting in numerous showers of particles lighting up our detector like a christmas tree. In the calorimeter data, we see energy in these events in just about every one of the independent 200,000 cells (each makes its own measurement of energy in a small region). Other detectors have similar luck. With this we can do a lot of work fine tuning and calibrating our detector, to be ready to take full advantage of proton-proton collisions, whenever they come. This by the way was supposed to be maybe a month or two, but with the way the LHC is working, we better be ready by about next week.
Also, here are some cool event displays from ATLAS.
Originally posted by TeraBlight
Originally posted by StargateSG7
A Brief Summary (Ha!) of Electromagnetic Quantum Gravity
I looked at the abstract and it mentions Cellular Automata theory - does the EMQG model rely on that?
September 11
20:30 Beam 2 into machine. Inject and dump 9 turns. Looks good.
22.30 Circulating beam !! in the machine for some 10mins.
Next steps
Same thing with Beam 1
Originally posted by Anonymous ATS
All I have to go on is what the 'associated press' tell me it's all about. THEIR interpretation of it all (as far as I can gather) is an attempt to 'mimic/recreate' the conditions prior to the 'Big Bang' in order to understand how 'things/particles/matter' collided and formed and created building blocks and produced (ultimately) all that we now see after millions/billions of years of evolutions/chance/random integration.
Originally posted by eaganthorn
Anytime we can have an effort like this, working together on a project of global proportions, we have global benefit. And even if this collider produces no new data and no new information, it has provided those jobs to all of those people, so enjoy what comes of it, embrace it. Look forward to another great project that can put millions of people to work.
Originally posted by NorthWolfe CND
Question: Do you know if the LHC will be used to study variations in the speed of light?
Theory: Speed of light is slower near the origin of the Big Bang, and faster as we move away from said origin (or center).
Originally posted by spacebot
And there is actually a chamber in the LEP Pit in CERN I think they have given the name "the Delphic Oracle".
Originally posted by citizen smith
Could the energised protons at near-light-speed in the final circuit be 'parked-up' using the same principle used at the Harvard experiment
Originally posted by jiggyturbojim
Thanks, do you mean the big bang?
Originally posted by StargateSG7
At quantum scales Chaos Theory and the related Cellular Automata
DO come into play when describing local effects, which at small scales
look completely random and chaotic, but at larger scales become
self-organizing and ordered.
At quantum scales, what we can detect as the Protons, Neutrons and
Electrons of atoms are in fact tiny balls of bouncing/jittery quantum
matter called Quarks which are grouped together to give charge and
existence to the larger sub-atomic particles. On an even more
sub-quantum scale, quarks are believed to be nothing more than
ripples or explosions of extra-dimensional space and time that give
"Weight/Mass" to the individual Quarks that make up a Proton,
Neutron and Electron.
Originally posted by NorthWolfe CND
Is there any time table of experiments that will be done at in the LHC? The LHC is funded by so many institutions, and countries, that I was wondering if the usage time, and various experiments, has been arranged yet?
The “God Particle” or Higgs boson was invented by Peter Higgs to explain why other particles exhibit mass. He starts with assuming the existence of a particle that has only mass and no other characteristics, such as charge. So the Higgs particle is like no other in our experience, since all normal matter is composed of electric charges that respond to electromagnetic influences. (Dark matter falls into the same category.) However, we observe that the mass of a charged subatomic particle is altered by the application of electromagnetic forces. At its simplest (and Nature is economical in our experience) it indicates that mass is related to the storage of energy within a system of electric charges inside the particle. That’s what E = mc2 is telling us. So how can a massive particle be constructed without electric charge? It shows the problem inherent in leaving physics to mathematicians — there is a disconnect between mathematical concepts and reality.
The notion that subatomic particles exhibit mass as a result of their interaction with imaginary Higgs particles occupying all of empty space like some form of treacle should have caused a sceptical uproar, if it weren’t for the appalling apathy of the public toward such nonsense. The ‘annihilation’ and ‘creation’ of matter is invoked when particles at particular points arise from ‘fields’ spread over space and time. Higgs found that parameters in the equations for the field associated with his hypothetical particle can be chosen in such a way that the lowest energy state of that field (empty space) is not zero. With the field energy non-zero in empty space, all particles that can interact with the Higgs particle gain mass from the interaction.
This explanation for the phenomenon of mass should have been stillborn if common sense was used. To begin, the annihilation and creation of matter is forbidden by a principle of physics. It is tantamount to magic. Second, field theory is a purely imaginary construct, which may or may not have physical significance. And third, it is not explained how the Higgs particle can have intrinsic mass but no charge and yet interact with normal matter, which has charge but is said to have no intrinsic mass. Rather than explain the phenomenon of mass, the theory serves to complicate and confuse the issue. The most amazing feature of this $6 billion experiment is the confused and illogical thinking behind it.
the timetable has had to be delayed because of power failures that affected its cooling system.The problems were resolved finally yesterday and the team was planning to resume circulating beams of protons around the 17-mile (27km) ring last night.