Clipmarks | Cern Clips

The World's Largest Particle Accelerator

Sat, 16 Aug 2008 17:48:57 GMT

clipped by: dmtherob
clipper's remarks: No one really knows what the machine will give birth to. But the equations suggest that some weird stuff could be just around the corner — maybe "dark matter," the invisible stuff that seems to hang around galaxies.

"It's kind of an embarrassment that we don't know what 95 percent of the universe is made of by weight," Green says. "We hope — it's possible — we may be making dark matter."

Some theories say it is possible the collider will cause miniature black holes to momentarily appear.

But for now, what has appeared is a table of croissants, an urn of coffee, and more people. Everyone stands around in blue hard hats. They don't talk about black holes or dark matter. A few say things like "I hope the magnet doesn't fall."

Clip Source: www.npr.org

The World's Largest Particle Accelerator

The work is all part of an $8 billion project at the international physics laboratory called CERN. At its heart will be an enormously powerful particle accelerator capable of smashing subatomic particles together, reproducing the energies that existed a fraction of a second after the big bang. What comes out may solve some fundamental mysteries about how the universe is put together.

But that's if everything works. Physicists hope to begin operation this fall of what is arguably the largest and most complex science experiment ever constructed.

Tags: particle accelerator, physics, black hole, universe, big bang, dark matter

The Planet's Most Massively Awesome Computer to Go Live September 10th

Mon, 11 Aug 2008 13:04:28 GMT

clipped by: tabsey
clipper's remarks: There is a chunk that wouldn't clip, but is interesting. Other links at the bottom of the site page.

Clip Source: www.dailygalaxy.com

There's a global computing effort dedicated to moving vast volumes of data around the world. You already knew that, but this one isn't being used to pirate movies. It's the computational support system for the work that will take place at the Large Hadron Collider, and it's the largest scientific computing project to date.

Today, the European Organization for Nuclear Research (CERN) has announced that the LHC will go online on September 10.

But the only data CERN's Large Hadron Collider (LHC) has produced thus far is a thoroughly debunked urban myth—that the particle accelerator buried under the Swiss-French border will create an apocalyptic black hole.

Will the efforts of the world find the Higgs boson, or will scientists who should know better succumb to the temptation of hosting the largest game of Counter Strike ever seen? We'll have to wait and see.

Tags: is, your, computer, part, of, this?

Large Hadron Collider: The Biggest Human Experiment Ever Yet

Sat, 09 Aug 2008 01:12:52 GMT

clipped by: Silkweaver
clipper's remarks: Some of those particles could help us to understand the nature of mass, including the as-yet-undetectable dark matter that accounts for so much of the universe’s mass. Other particles might prove the existence of extra dimensions, or lead to entirely new theories or physical laws

Clip Source: www.dailygalaxy.com

There's a global computing effort dedicated to moving vast volumes of data around the world.

You already knew that, but this one isn't being used to pirate movies. It's the computational support system for the work that will take place at the Large Hadron Collider, and it's the largest scientific computing project to date.

Today, the European Organization for Nuclear Research (CERN) has announced that the LHC will go online on September 10.

On September 10th, researchers will activate particle beams within the 17-mile-long ring, and the world’s most powerful particle accelerator will begin collecting experimental data.

The LHC’s research potential is staggering, with physicists hoping to use the accelerator’s extremely high-energy proton collisions to generate a range of theoretical particles.

Once started it will be a source of staggering amounts of data

the data load will be spread over hundreds of participating facilities around the globe

Clip Source: www.dailygalaxy.com

[Video]

Tags: physics, lhc, particle physics, higgs

CERN announces start-up date for LHC

Fri, 08 Aug 2008 14:41:17 GMT

clipped by: dewitte

Clip Source: press.web.cern.ch

Geneva, 7 August 2008. CERN¹ has today announced that the first attempt to circulate a beam in the Large Hadron Collider (LHC) will be made on 10 September. This news comes as the cool down phase of commissioning CERN’s new particle accelerator reaches a successful conclusion. Television coverage of the start-up will be made available through Eurovision.

The CERN Control Centre, from where the LHC will be operated.

Starting up such a machine is not as simple as flipping a switch. Commissioning is a long process that starts with the cooling down of each of the machine’s eight sectors. This is followed by the electrical testing of the 1600 superconducting magnets and their individual powering to nominal operating current. These steps are followed by the powering together of all the circuits of each sector, and then of the eight independent sectors in unison in order to operate as a single machine.

Tags: cern, lhc, timeline

CERN announces start-up date for LHC

Thu, 07 Aug 2008 16:50:37 GMT

clipped by: tabsey
clipper's remarks: Getting closer.

Clip Source: press.web.cern.ch

The CERN Control Center, from where the LHC will be operated.

The LHC is the world’s most powerful particle accelerator, producing beams seven times more energetic than any previous machine, and around 30 times more intense when it reaches design performance, probably by 2010. Housed in a 27-kilometre tunnel, it relies on technologies that would not have been possible 30 years ago. The LHC is, in a sense, its own prototype.

Tags: science

CERN Rap

Wed, 06 Aug 2008 23:59:14 GMT

clipped by: cakebelly

Clip Source: www.b3ta.com

[Video]

呃，我不小心掉進了大型強子碰撞器裡

Wed, 06 Aug 2008 01:39:13 GMT

clipped by: Jackidea

Clip Source: chinese.engadget.com

癮科學：呃，我不小心掉進了大型強子碰撞器裡，有危險嗎 @@

這是在 Popular Science 上看到的一篇有趣文章。我們都知道，位於法國-瑞士邊界的大型強子碰撞器是有能力製造黑洞的（或大致上類似的東西，科學家也不確定），想必靠得太近不是好事吧？自然，CERN 也沒有讓你靠近的打算，但假設（只是單純的假設），你不小心掉進了水溝裡，好不容易爬出來，卻發現自已掉在大型強子碰撞器的主加速環圈裡，會發生什麼事？

首先（可能有點出乎意料之外的），你不可能掉進真正的加速環圈內。實際上包含質子束的那條真空管線只有大約五公分寬，裡頭的質子束也被強大的磁鐵限制在一條 1mm 寬的窄束裡，所以你能「不小心」出現的地方只有加速器通過的大隧道（上圖）而已。但這不表示你是安全的 -- 大量的質子以這樣的高速前進時，偶爾一定會有個幾顆脫離被限制的範圍，撞上周圍限制質子束的磁鐵，產生一拖拉庫天知道什麼東西。整體來說，周圍環境的輻射質，和進行一次電腦掃瞄相當 -- 不會立即致命，但待超過五分鐘的話，會對你的後代產生極不良的影響。

不過剛才是系統「一切正常」的時候的情形。如果質子束失控了的話，裡頭以接近光速前進的 320 兆顆質子所帶的總動量大約和一台以 150km/h 的速度向前狂飆的 400 噸火車相當。無論撞到哪裡都是直接爆炸的結果，質子束撞擊後還有可能帶動被撞擊的磁鐵等材質產生變化 -- 總之，如果你剛好在撞擊的現場，那是絕對沒可能生還了。

最後，想必是大家都好奇的，如果被質子束直接命中，有可能變超人嗎？CERN 的科學家 Mike Lamont 說：「人體被擊中就是直接洞穿的下場，一點機會都沒有。」好吧，看來超人是當不成了...

Rappin' physics

Mon, 04 Aug 2008 03:56:58 GMT

clipped by: zalisan
clipper's remarks: In the months before I began working at New Scientist I spent some time in Geneva working at CERN, home of the Large Hadron Collider. What I actually did there has always been a bit of a mystery to everyone in the New Scientistoffice. This video might offer some answers. When the LHC is (finally) switched on later this year, the things that it discovers really will rock you in the head.

Clip Source: www.google.com

Dropping mad science at the Large Hadron Collider

Brian Cox is not the only rock star at CERN:

[Video]

Tags: physics, rap, cern, particles, collider

LHC - latest photos

Sat, 02 Aug 2008 04:47:00 GMT

clipped by: zadoz
clipper's remarks: the pinnacle of tech. age ,will this make or break mankind

Clip Source: www.boston.com

The Large Hadron Collider (LHC), a 27 kilometer (17 mile) long particle accelerator straddling the border of Switzerland and France, is nearly set to begin its first particle beam tests. The European Organization for Nuclear Research (CERN) is preparing for its first small tests in early August, leading to a planned full-track test in September - and the first planned particle collisions before the end of the year. The final step before starting is the chilling of the entire collider to -271.25 C (-456.25 F). Here is a collection of photographs from CERN, showing various stages of completion of the LHC and several of its larger experiments (some over seven stories tall), over the past several years. (27 photos total)

Tags: lhc, collider

Large Hadron Collider nearly ready

Sat, 02 Aug 2008 03:11:51 GMT

clipped by: milmufmas

Clip Source: www.boston.com

27 Kilometer langer Tunnel für die Suche nach der Masse

Thu, 24 Jul 2008 13:38:38 GMT

clipped by: Wallus

Clip Source: www.3sat.de

27 Kilometer langer Tunnel für die Suche nach der Masse

Am "Large Hadron Collider" wollen Cern-Forscher das Higgs-Boson nachweisen

Mit dem "Large Hadron Collider" (LHC), einem gigantischen Teilchenbeschleuniger, wollen die Forscher am "Centre Européen pour la Recherche Nucléaire" (Cern) herausfinden, warum wir und alle Teilchen eine Masse haben - und warum es diese Teilchen überhaupt gibt. "Den Nachweis der Higgs-Teilchen soll diese gigantische Mess-Anlage möglich machen", schildert Prof Felicitas Pauss, Physikerin am Cern. Das geheimnisvolle Higgs-Boson soll die Teilchen um sich scharen und so für deren Masse sorgen.

Tags: 27, kilometer, langer, tunnel, für, die, suche, nach, der, masse

Das "Atlas"-Experiment - eine Simulation des Urknalls

Thu, 24 Jul 2008 13:37:40 GMT

clipped by: Wallus

Clip Source: www.3sat.de

Das "Atlas"-Experiment - eine Simulation des Urknalls

Der 7000 Tonnen schwere Teilchendetektor soll kleinste Teilchen nachweisen

Der 46 Meter lange und 7000 Tonnen schwere Teilchendetektor "Atlas" im "Conseil Européen pour la Recherche Nucléaire" (Cern) in Genf soll kleinste Teilchen nachweisen, die bisher nur theoretisch existieren. "Wir arbeiten weltweit gemeinsam daran, mit diesem Experiment in der Physik Geschichte zu schreiben", sagt Peter Jenni, "Atlas"-Sprecher und Projektleiter. Durch die Kollision zweier Protonenstrahlen sollen neue Elementarteilchen erzeugt und nachgewiesen werden.

Tags: das, atlas, experiment, eine, simulation, des, urknalls

Physiker suchen am Cern den Anfang des Universums

Thu, 24 Jul 2008 13:36:41 GMT

clipped by: Wallus

Clip Source: www.3sat.de

Physiker suchen am Cern den Anfang des Universums

"Large Hadron Collider" bieten Forschern Bedingungen wie kurz nach dem Urknall

Der "Large Hadron Collider" (LHC) am Europäischen Laboratorium für Teilchenphysik (Cern) soll einer fundamentalen Frage der modernen Physik nachgehen: Wie kommen Teilchen zu ihrer Masse? Der LHC soll den Physikern Bedingungen bieten, wie sie im Universum ein Millionstel eines Millionstels einer Sekunde nach dem Urknall herrschten. Der Physiker Rolf Dieter Heuer erklärte, mit der Inbetriebnahme des LHC werde "ein völlig neues Zeitalter in der Teilchenphysik" eröffnet.

Tags: physiker, suchen, am, cern, den, anfang, des, universums

welcome

Wed, 23 Jul 2008 18:53:12 GMT

clipped by: amsler

Clip Source: unizh.web.cern.ch

Welcome to the Particle Physics Group
of the University of Zürich at CERN

Black Hole "eats" World

Wed, 23 Jul 2008 11:12:24 GMT

clipped by: markus1804
clipper's remarks: What can happen when CERN in Switzerland makes experimentals with black holes

Clip Source: forum.areagames.de

[Video]