Raphael Briner 1 year ago
Nicolas Sierro 1 year ago
Raphael Briner 1 year ago
Raphael Briner 1 year ago
Raphael Briner 1 year ago
Cloud computing has replaced virtualization as the new hot topic of 2008. Yet underneath the headlines a very basic shift is taking place in the network that promises even more conversations in the very near future. Let’s call this ...
CERN activated the LHC a little over an hour ago. Looks like we're all still here, so happy LHC day everyone! (Famous last words?)
I was lucky enough earlier this year to enter the LHC and have one of ...
Two teams of physicists compete to explain matter—and win a Nobel Prize.
published online August 13, 2007
Near the west end of Lake Geneva in Switzerland, buried under the river plain of the Rhône, workers are fitting together the final pieces of the machine that hopes to unlock one of the biggest mysteries of the universe. It has taken over 20 years, $8 billion, and the combined efforts of more than 60 countries to create this extraordinary particle smasher, the Large Hadron Collider, or LHC, built and operated by CERN, the European physics consortium.
The “large” in Large Hadron Collider is something of an understatement. “Enormous” is closer: The collider’s underground tunnel carves a circle 17 miles in circumference, traversing the border between Switzerland and France. At four locations it passes through caverns crammed with detectors the size of buildings. In a deliberately constructed rivalry, two of these detectors—along with their armies of scientists, engineers, and technicians—will vie with each other to discover the obscure but wildly important particle known as the Higgs boson.
“The LHC will enable us to study in detail what nature is doing all around us,” said CERN Director General Robert Aymar. “The LHC is safe, and any suggestion that it might present a risk is pure fiction.”
Safety has been an integral part of the LHC project since its inception in 1994, and the project has been subject to numerous audits covering all aspects of safety and environmental impact. A comprehensive report by independent scientists addressing safety issues related to the production of new particles at the LHC was presented to CERN’s governing body, the CERN Council, in 2003. It concluded that the LHC is safe. This report was updated and its conclusions strengthened in a new report incorporating recent experimental and observational data that was presented to Council at its most recent meeting in June 2008. This new report confirms and strengthens the conclusion of the 2003 report that there is no basis for any concern about the safety of the LHC.The CERN Council is composed of representatives of the governments of the 20 European Member States of CERN.
The report was prepared by a group of scientists at CERN, the University of California, Santa Barbara, and the Institute for Nuclear Research of the Russian Academy of Sciences. The papers comprising the report have been accepted for publication in leading peer-reviewed scientific journals. The report was reviewed carefully by the Scientific Policy Committee (SPC), a body composed of 20 independent external scientists that advises the CERN Council on scientific matters. Five of these independent scientists, including one Nobel Laureate, examined in detail the 2008 report and endorsed the authors’ approach of basing their arguments on irrefutable observational evidence to conclude that new particles produced at the LHC will pose no danger. The full SPC agreed unanimously with their findings.
“The LHC safety review has shown that the LHC is perfectly safe,” said Jos Engelen, CERN’s Chief Scientific Officer, “it points out that Nature has already conducted the equivalent of about a hundred thousand LHC experimental programmes on Earth – and the planet still exists.”
James Gillies
Tel. +41 22 76 74101
James.Gillies@cern.ch
1Journal of Physics G: Nuclear and Particle Physics, published by IOP Publishing, covers theoretical and experimental topics in the physics of elementary particles and fields, intermediate-energy physics and nuclear physics. For further information please visit http://www.iop.org/journals/jphysg. The LHC safety report "Review of the Safety of LHC Collisions" (J. Ellis et al, 2008 J. Phys. G: Nucl. Part. Phys. 351150004) is available online.
2 CERN, the European Organization for Nuclear Research, is the world's leading laboratory for particle physics. It has its headquarters in Geneva. At present, its Member States are Austria, Belgium, Bulgaria, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. India, Israel, Japan, the Russian Federation, the United States of America, Turkey, the European Commission and UNESCO have Observer status.
... the half-arsed climate change post from December – that aught to lose me some friends. Obligatory LHC update, for those who’re into that kind of thing.. Since I’ve been doing the globetrotting thing, write about the bolt-hole viability of Oz (drafted November 09) and The States (drafted Dec 08(!)) Comment on teh evil Social workers/childsnatchers we’re so fond of. That one will be in concert...
Source : The Salted Slug (subscribe)
... silver plated thousands of the acceleration rings for a small collider in Florida. The goal of LHC is to prove the existance of the smallest unit of matter in the universe from which everything else is derived. Just like during our foray into nuclear fission in the '40's, there are fringe groups that claim experimentation will result in instantanious destruction of the universe. This lady...
Source : Right Coast (subscribe)
... sounding name, the GASP has proved crucial to unraveling the secrets of how Nature's "LHC" works. "As the universe 's biggest accelerators, blazar jets are important to understand," said Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) Research Fellow Masaaki Hayashida, corresponding author on the recent paper presenting the new results with KIPAC Astrophysicist Greg Madejski.
Source : Universe Today (subscribe)
Explore : Astronomy and Space, Sciences
Strong Interaction by the LHC . The player may be visible on the separate page only. Today and yesterday, the media got full of "new" reports about the LHC shutdown. In fact, most of the LHC news in recent days talk about this shutdown. That's completely silly and it further demonstrates the incompetency of the science journalists in most MSM outlets because the "news" is actually the same...
Source : The Reference Frame (subscribe)
A while ago, I complained that the people running the LHC did not have their act together when it came to managing and disseminating information for the interested public. I took a little flack for that (see comments) but I was right. And I'm still right. We (the interested public) were just recently given a very nice overview of the potential for the next several months of research. Then, today,...
Source : Greg Laden's Blog (subscribe)
Explore : Science blogs, Sciences
... continuing through May, the KITP is hosting a string phenomenology program entitled Strings at the LHC and in the Early Universe . The program blurb somehow neglects to mention that string theory doesn’t actually predict anything at all about LHC physics or cosmology. To get a good idea of the topics that researchers in this field are discussing, online talks are here , starting with two...
Source : Not Even Wrong (subscribe)
Explore : Physics
What's the over/under on how long the Large Hadron Collider (LHC) stays running? We don't know the answer, but we'd be inclined to take the 'under' bet every time. In the latest bit of bad news, the atom smashing machine will have to be shut down at the end of 2011 for up to year in order to address design issues. "It's something that, with a lot more resources and with a lot more manpower and...
Source : Maximum PC all RSS Feed (subscribe)
In February, Germany's Highest Court, the Bundesverfassungsgericht ruled on the motion of a German residing in the Swiss city of Zurich, to pressure the German government into trying to stop the operation of the Large Hadron Collider , the biggest machine ever built , and that also has an easy to misspell name . read more
Source : The Lay Scientist (subscribe)
The trouble Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) in Switzerland, which has only just resumed operation after a 14 month hiatus, will be shut down at the end of 2011 for a further 12 months to allow repairs and safety updates to take place. The news comes at a time [...]
Source : Intute: Social Sciences Blog (subscribe)
Explore : CERN, Large Hadron Collider, Sciences, Social Sciences
From Techeye.net: World record collision energies aren’t enough - it needs more power!! The Large Hardon Collider (LHC) is to shut down at the end of 2011, just in time to cause the (speculated) end of the world by 2012. According to reports, the atom smashing machine needs to fix design and safety issues which is stopping it from reaching its potential. Apparently, world record collisions of 7...
Source : Cool Science News (subscribe)
Explore : CERN, Large Hadron Collider
The Large Hadron Collider (LHC) must close at the end of 2011 for up to a year to address design issues, according to an LHC director. Dr Steve Myers told BBC News the faults will delay the machine reaching its full potential for two years. The atom smasher will reach world record collision energies later this month at 7 trillion electron volts. {design was for 14 Tev) But joints between the...
... http://www.eff.org/deeplinks/2010/03/iphone-developer-program-license-agreement-all LHC to be shut down for a year for repairs (thanks, Todd!) http://news.bbc.co.uk/2/hi/science/nature/8556621.stm http://news.nationalgeographic.com/news/2010/02/100222-large-hardron-collider-lhc-restarts-big-bang/ US Considers Some Free Wireless Broadband Service...
Explore : Mac Development, Pink Floyd, Podcast, Rock and Pop, Wireless
Geneva, Switzerland (GenevaLunch) – The annual shutdowns at Cern, long a part of the rhythm of the European Organization for Nuclear Research, are coming to an end, with the LHC (Large Hadron Collider) gearing up. The organization will instead remain open for 18-24 months at a stretch, then close for a longer period to accommodate [...]
Source : GenevaLunch (subscribe)
Explore : CERN, Large Hadron Collider
astroengine follows up to a story about the LHC shutting down that seems to have hit all the news replicators today. “It’s to be expected when pushing the frontiers of physics, but the LHC’s epic “will it or won’t it” saga continues.
Source : AterSlash (subscribe)
Explore : Technology Blogs
The Geneva-based physics research centre CERN says its Large Hadron Collider project is back on track, even while acknowledging that it will be closed for up to a year for maintenance and design improvements in the next 18 to 24 months. A spokesman for the facility tells Swisster the temporary closure was planned early in 2009 and is needed to ready the LHC for particle collisions at...
Explore : CERN, Large Hadron Collider
astroengine follows up to a story about the LHC shutting down that seems to have hit all the news replicators today. "It's to be expected when pushing the frontiers of physics, but the LHC's epic 'will it or won't it' saga continues. Due to an unforeseen construction mistake, the LHC will cease experiments for a year (starting around late-2011) so repairs and upgrades can be carried out. For now,...
Source : Computer Nerds Blog (subscribe)
Explore : Slashdot
astroengine follows up to a story about the LHC shutting down that seems to have hit all the news replicators today. "It's to be expected when pushing the frontiers of physics, but the LHC's epic 'will it or won't it' saga continues. Due to an unforeseen construction mistake, the LHC will cease experiments for a year (starting around late-2011) so repairs and upgrades can be carried out. For now,...
Source : Click World News (subscribe)
Explore : Slashdot
astroengine follows up to a story about the LHC shutting down that seems to have hit all the news replicators today. "It's to be expected when pushing the frontiers of physics, but the LHC's epic "will it or won't it" saga continues. Due to an unforeseen construction mistake, the LHC will cease experiments for a year (starting around late-2011) so repairs and upgrades can be carried out. For now,...
Source : Ask Slashdot (subscribe)
Physicist qualifies a BBC article reporting on a 12 month shutdown of the LHC citing safety concerns as 'lazy journalism'.
Source : The Sofia Echo (subscribe)
... decision was taken jointly with the physicists working on the four giant particle detectors on the LHC. He said they appreciate the chance to test their own equipment while the machine is running at half its maximum power. Of course there are some competing theories over why it is having problems .
Source : jordoncooper.com (subscribe)
L’accélérateur de particules du CERN, le LHC (Large Hadron Collider) qui vient de redémarrer quatorze mois après le fameux accident ne devrait pas atteindre sa pleine puissance avant fin 2011, apprend-on sur le site de la BBC . C’est apparemment la sécurité autour des joints entre les éléments supraconducteurs qui est en cause. Les chercheurs préfèrent plafonner à 50% de la capacité globale afin...
Explorer : Accélérateur de particules, CERN, Science
Série noire pour l'accélérateur de particules le plus puissant du monde, le Grand Collisionneur de Hadrons (LHC), à peine sorti de deux longues mises en veille : il devra fermer pour un an pour défauts de fabrication, a annoncé le Centre européen de recherches nucléaires (Cern).
Explorer : Accélérateur de particules, CERN, Science
Il semble qu'au Grand Colisionador de Hadrones, le plus grand accélérateur de particules jamais construit, il ne poursuit de malédiction ou quelque chose de pareil. Il a nouvellement eu des problèmes, bien que pas si tu grèves comme dans des chapitres précédents. À peu, de se mettre dans un fonctionnement, il a souffert d'une avarie sérieuse, une fuite d'hélium a provoqué un bruit de casse...
Source : Technologie college (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Un des scientifiques qui a contribué à la conception de l’accélérateur du CERN estime que le grave incident de septembre 2008 est dû à des erreurs de conception, d’exécution et de diagnostic.
Source : Tribune de Genève (s'abonner)
L'accélérateur de particules le plus puissant du monde, le LHC, mis en veille depuis décembre, a été remis en marche dimanche à l'aube, a annoncé le Centre européen de recherches nucléaires (Cern). "Le LHC est de nouveau en marche. Les premiers rayons de 2010 ont circulé dans chaque direction à 04H10 (03H10 GMT)," a annoncé le Cern dimanche. Le LHC, qui a coûté 3,9 milliards d'euros, avait été...
Explorer : Accélérateur de particules, CERN, Science
Après un arrêt pour maintenance, l’accélérateur de particules l’Organisation européenne pour la recherche nucléaire (CERN) a redémarré ce week-end.
Source : NouvelObs.com (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Il a été remis en marche dimanche. C'est ce qu'annonce le CERN sur son site internet. Le plus grand accélérateur de particules installé à la frontière franco-suisse était en veille depuis décembre dernier. Il devrait permettre de recréer les conditions du big bang.
Source : mAnnecy L'actualité d'Annecy (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Le grand collisionneur de hadrons (LHC), le plus grand accélérateur de particules jamais construit, a été remis en service dimanche, a annoncé Christine Sutton, porte-parole du Centre européen de recherche nucléaire (CERN). Il avait été arrêté il y a deux mois et demi, le temps pour les scientifiques de procéder à quelques vérifications et améliorations. Des faisceaux [...] Ces billets peuvent...
Source : Onlineradio (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Hier à 4 h 10, les premiers faisceaux de protons de 2010 ont circulé dans les deux sens le long de la boucle de 27 kilomètres du Grand Collisionneur de hadrons.
Source : Tribune de Genève (s'abonner)
« Un voyage aux origines des temps en compagnie des meilleurs physiciens. » Retour sur un excellent reportage de la BBC diffusé en 2008, qui nous immerge dans l’univers des chercheurs du CERN durant l’année qui a précédé le démarrage du LHC (Large hadron collider ou Grand collisionneur de hadrons). Quelle est l’origine du monde ? De [...]
Source : Eteignez Votre Ordinateur (s'abonner)
L'accélérateur de particules du CERN près de Genève pourrait être endommagé par des éléments venant du futur. Mercredi 25 Novembre 2009 Un an après l'incident technique qui avait provoqué sa fermeture en septembre 2008, le LHC (Large Hadron Collider) le fameux collisionneur de hadrons du CERN a commencé à se remettre en route. Les premières particules (ions et protons) ont même fait leur
Source : La Presse Galactique (s'abonner)
Explorer : Accélérateur de particules, CERN, Genève, Science
... du programme de recherche, deux à quatre semaines plus tard", a déclaré le porte-parole du CERN, James Gillies, à… Article original publié sur RTL info.be | Si vous lisez cet article dans son intégralité sur un autre site que RTLinfo.be c'est qu'il a été reproduit illégalement et sans autorisation. Merci de le signaler à la rédaction en cliquant ici | © RTL Digital - 2008
- L'accélérateur de particules le plus puissant du monde, le LHC, mis en veille depuis décembre, va être remis en marche dans les jours qui viennent, a annoncé dimanche le Centre européen de recherches nucléaires (Cern)."Nous devrions avoir de nouveau des rayons dans le LHC entre lundi et mercredi,... -
Source : Les Echos (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Les faisceaux vont à nouveau circuler dans le grand accélérateur du CERN la semaine prochaine. Place aux découvertes!
Source : Tribune de Genève (s'abonner)
Six laboratoires français ouvrent leurs portes à plus de 300 jeunes et leur font vivre la réalité du métier de chercheur en physique des particules. Un pari ambitieux pour le CNRS/IN2P3 et une très bonne occasion d'initier les jeunes aux collaborations internationales scientifiques à travers la physique des particules. Cette nouvelle édition des journées internationales Master Classes a lieu du...
Source : LHC France (s'abonner)
Explorer : Astrophysique, Physique, Science
En partenariat avec neopodia, Futura-Sciences vous propose aujourd'hui de découvrir la deuxième partie d'un reportage dédié au LHC, le fameux accélarateur de particules. Va-t-on résoudre les mystères de la disparition de l'antimatière et de la masse cachée de l'univers ? Le boson de Higgs va-t-il jaillir d'une collision de protons ? On attend beaucoup du LHC, l'accélérateur de particules du Cern..
Source : Futura-Sciences (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
J'ai cru à plusieurs reprises que cela n'arriverait jamais, mais j'ai finalement passé toutes les étapes de défenses et de corrections et depuis un mois, je m'habitue gentiment à l'idée du Dr. devant mon nom. La libération ne fut pas aussi grande que je l'espérais tous des derniers mois, car l'obtention du diplôme précède surtout l'étape de recherche d'emploi et donc d'interrogations...
Source : femme de science(s) (s'abonner)
Explorer : Astrophysique, CERN, Edouard Herriot, Physique, Science
- SOYEZ EXPROPRIÉ! (Un dieu, dans un point de départ tempéré chavista). En principe, dans le premier jour le Dieu a créé les cieux et la terre. Une genèse 1:1. En réalité non. En principe il y a eu une grande explosion, très massive et très, très chaude. C'a été le Big Bang, qui constitue en réalité le principe de ce que nous considérons comme principe (et je promets ne pas recourir plus à la...
Source : Une méthode scientifique (s'abonner)
Explorer : Accélérateur de particules, CERN, Science
Le Spectromètre magnétique Alpha (AMS) a quitté le CERN dans la matinée du vendredi, pour la première étape de son voyage vers la Station spatiale internationale (ISS). Le convoi spécial qui transporte l'expérience devrait arriver au centre européen de recherche et de technologies spatiales (ESTEC) de l'Agence spatiale européenne à Noordwijk (Pays-Bas) dans six jours. AMS recherchera une présence...
Explorer : Astrophysique, Etats-Unis, Houston, Physique, Science
Leonard doit se rendre en Suisse pour visiter le LHC à Genève. Comme ce séjour coïncide avec la Saint-Valentin, il souhaite emmener Penny. C'est compter sans Sheldon, qui ressort leur contrat de colocation, qui stipule que si l'un d'eux a l'opportunité de se rendre au CERN, il doit emmener l'autre avec lui. Les scénaristes ont déjà été plus inspirés... non que l'épisode ne soit pas drôle, mais on...
Source : Séries and fantasy (s'abonner)
Explorer : Astrophysique, Genève, Physique, Science, Suisse
The Large Hadron Collider (LHC) is a gigantic scientific instrument near Geneva, where it spans the border between Switzerland and France about 100 m underground. It is a particle accelerator used by physicists to study the smallest known particles – the fundamental building blocks of all things. It will revolutionise our understanding, from the minuscule world deep within atoms to the vastness of the Universe.
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the large hadron collider
