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Cern: Electrical fault caused LHC helium leak
News Cern has confirmed that an electrical fault was the cause of a liquid helium leak in its flagship particle accelerator. This resulted in mechanical damage, and a release of helium from the magnet cold mass into the LHC tunnel.
[October 17, 2008, 16:13]
Linux tablet PC breaks $1000 barrier
News The Helium 2100, from US-based manufacturer Element Computer, is a convertible PC with a sliding screen that can be positioned for use as a traditional notebook PC or folded down for use as a touch-screen tablet device.
[December 2, 2003, 8:40]
LHC restart pushed back further
News The LHC was shut down in September, nine days after it was first fully powered up, following a helium leak caused by an electrical fault. The liquid helium leak in September caused damage to the LHC, mainly as a result of the helium expanding as it...
[November 28, 2008, 13:47]
Vacuum leaks lead to more Hadron Collider delays
News To repair the leaks, which are from the helium circuit into the insulating vacuum, sectors 8-1 and 2-3 will have to be warmed from 80K to room temperature. The LHC experiment, which is designed to answer fundamental questions about the nature of...
[July 21, 2009, 13:00]
And by the way...
Talkback A little helium was formed shortly after the big bang while the universe was still very hot. The rest of the helium, and all the higher elements, are formed via a complex chain of fusion reactions we call "nucleosynthesis", within the hot core of a...
[June 2, 2007, 1:53]
Date set for restart of Large Hadron Collider
News The particle beam machine, located at the border between France and Switzerland, was first powered up on 10 September, but the experiment had to be closed down on 19 September after a malfunction caused a leak of liquid helium.
[October 3, 2008, 14:07]
Hadron Collider shut down until early spring
News However, it hit a major glitch last week when a mechanical failure triggered a helium leak and forced a shutdown for what was initially reported to be at least two months. It appears the helium link was caused by a faulty electrical connection...
[September 24, 2008, 9:36]
Progress made in Large Hadron Collider repair
News That malfunction subsequently led to a helium leak. Extra pressure valves are also being installed to make any helium releases less disastrous to the project. The final replacement magnet for the Large Hadron Collider has been lowered into the...
[May 1, 2009, 15:38]
LHC restart date now June at earliest
News These magnets are made of a superconducting material that needs to be cooled by liquid helium to a temperature of 1.9K if it is to avoid overheating and exploding. The LHC was successfully turned on in September but, little more than a week later...
[November 18, 2008, 14:44]
Revived LHC could run through the winter
News This caused an electrical arc, which punctured the cavity containing liquid helium used to supercool both the experiment and the magnets which direct and focus the particle beams. He also said that more helium safety valves with a higher capacity...
[May 27, 2009, 17:02]
Chips, the Universe and Everything
News These carry 20,000 amps apiece, and are cooled by liquid helium. I asked if it was something we needed to know about, and was told that if there was a major helium or argon leak, we'd have two minutes before getting asphyxiated.
[November 23, 2006, 11:21]
Culprit found for latest LHC leaks
News Liquid helium leaks in the world's largest particle accelerator were probably caused by a problem with a flexible hose in the liquid helium transport circuits, the organisation said an article in its official bulletin, published on Friday.
[August 3, 2009, 16:01]
Large Hadron Collider faces two-month shutdown
News The world's largest particle collider has been shut down for at least two months due to a large helium leak stemming from an incident on Friday, officials said. The Large Hadron Collider (LHC), a gigantic particle accelerator located in a nearly 17...
[September 22, 2008, 8:18]
A look at the damage that halted the LHC
News The particle accelerator was damaged by a liquid helium leak in September, nine days into an experiment to test fundamental theories of physics by colliding beams of protons inside a 27km ring. The superconducting magnets, used to direct and focus...
[December 10, 2008, 15:55]
Ridiculous Idea
Talkback That a machine that's 17 miles long, has thousands of newly developed parts and relies upon superconducting magnets that need immersion in liquid helium should work perfectly on its first real test. I was pretty surprised that they managed to get...
[September 25, 2008, 13:18]
iLaunched
Downloads On the way up, collect items such as helium tank, rocket pack and flying saucer to give them a boost. iLaunched lets you pick between a friendly sheep, an angry pig and a snooty frog to boost it higher and launch them into space.
[April 2, 2009, 9:31]
Planet Jupiter 3D ScreenSaver
Downloads Its low density indicates that the planet is composed primarily of the lightest elements - hydrogen and helium. jupiter is twice as massive as all the other planets of the Solar system combined. At the same time it rotates faster than any other...
[May 12, 2008, 8:00]
huh?
Talkback I thought they used liquid nitrogen and helium for that! "In preparation for Wednesday's initiation, 37,000 tonnes of equipment had to be cooled down by 300°C to 1.9° above absolute zero (-271°C), using the world's most advanced superconducting...
[September 11, 2008, 20:34]
LHC restart now on hold until September
News LHC operations were suspended last September after a transformer malfunction in its cooling system allowed a helium leak — just nine days after the project became operational. The Large Hadron Collider could be restarted at the end of September — a...
[February 10, 2009, 8:23]
Steorn renews perpetual promise to show free energy machine
Blog Comment Also they are able to harness more of the energy since all of the helium nuclei are charged. "It's this sort of quirky yet impeccably kosher physics that, I think, will probably yield useful results much quicker than wobbling magnets"
[November 3, 2009, 18:52]
