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The LHC has experience more issues, further delaying its restart. This time leaks were found in its insulating layer's vacuum.  (Source: Flickr)

The Large Hadron Collider consists of a 17 mile, electronics-packed tunnel on the Swiss-French border. The collider will accelerate particles to unprecedented speeds and should unlock physics mysteries.  (Source: CERN)
Problems continue at the CERN project

For a project as ambitious and complex as CERN's Large Hadron Collider (LHC), setbacks are likely, in fact almost inevitable.  However, the delay would be worth it according to Bob Cousins, deputy to the scientific leader of one of the sensor experiments as it would allow the sensors to be made "even more perfect than before". 

While the sensor may indeed be nearing perfection, the overall design is still experiencing problems.  Leaks in the insulating layer's vacuum were discovered in
sectors 8-1 and 2-3 that would prevent it from properly operating.  This new problem will delay the restart from October to November.

The leaky sectors will be needed to be warmed from their current temperature of 80K to room temperature in order to plug the leaks.  The near-vacuum of the beam pipe will not be impacted. 

The LHC is cooled with liquid helium injected into an insulating layer which surrounds the beam tube and is kept at near-vacuum.  This allows the LHC beam tube to be cooled to temperatures colder than that of outer space.  Last fall the particle collider was briefly turned on, but a cooling circuit melted leading to the damage to the electrical and cooling systems.  Scientists initially wanted to restart the LHC in April, but the large extent of the damages necessitated more repairs.

The cost of all the repairs thus far, though, have been small compared to the $10B USD estimated cost of building the LHC.  Current repairs have run over $35M USD, according to reports.

The LHC sits on the border between Switzerland and France and consists of a 17 mile long ring.  The ring is capable of imparting energies of
7 TeV onto particles, making for potential collisions at unprecedented energies.  Scientists hope these collisions will help them unlock physics secrets including understanding how dark matter and energy work and the discovery of the law theorized "God Particle" -- the Higgs boson.

The accelerator, when active will continue to close each winter, to avoid the prohibitively high energy costs.  The accelerator requires massive amounts of power to operate.



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RE: So...
By Hare on 7/22/2009 4:03:10 PM , Rating: 4
IF you want a wikipedia link here's one:
http://en.wikipedia.org/wiki/Calendar_date

The US is pretty much alone with the mm-dd-yy format...


RE: So...
By Azsen on 7/22/2009 4:56:36 PM , Rating: 5
Yes and dd/mm/yyyy makes more sense because the unit is increasing in logical order from smallest to largest (days -> months -> years). While I'm on this track, Imperial measurements are terrible as well the US should be using Metric measurements.


RE: So...
By axeman1957 on 7/22/2009 4:57:48 PM , Rating: 2
I agree, but it was not really my point... i just wanted everyone to know they have an extra 9 days to wait for the end that will not come


RE: So...
By supersteve1440 on 7/22/2009 5:11:47 PM , Rating: 2
The "dd/mm/yyyy" format makes less sense than yyyy-mm-dd because the least significant item is read first (with more significant items following).

The is the opposite of how numbers and times are read.


RE: So...
By DeepBlue1975 on 7/22/2009 7:40:13 PM , Rating: 4
Japanese is still more practical and logical:

YYYY.MM.DD

And as for the imperial units... I don't know why the US keeps using it. If you are a physicist or an engineer, most likely you'll end up using metric units when doing serious calculations.

Working on equations with ten-based quantities and units that can not be treated as ten based is really annoying.


RE: So...
By DonkeyRhubarb on 7/23/2009 7:44:50 AM , Rating: 3
Why is the Japanese system more logical?

When I look at my phone to get the date, there's a bloody good chance I know what year it is, I just want the day, thus it should be first!


RE: So...
By JediJeb on 7/23/2009 10:35:06 AM , Rating: 2
In our lab we just changed over to using yyyy/mm/dd because it makes sorting and searching data so much easier when you have data spanning multiple years. If you sort without the year first you usually end up with 12 december 2008 right before 12 december 2009 and if you want files on three consecutive days you have to hunt and search because they are not contiguous.


RE: So...
By Ratinator on 7/23/2009 12:14:44 PM , Rating: 2
So you pick one instance where you actually know the year and consider the other as not being more logical....wow....narrow minded.


RE: So...
By DeepBlue1975 on 8/7/2009 11:04:23 AM , Rating: 2
<Sarcasm>

Wow, that's a lot of time you loose reading at a one tiny simple date! What a waste of time, man! 30 milliseconds to skip the year?

And what's worse, then comes another wasted 30 milliseconds reading the month, which you also already know!!!

60 whole milliseconds trashed once a day!!! What a painful thing!!!

</sarcasm>


RE: So...
By foolsgambit11 on 7/22/2009 8:43:41 PM , Rating: 3
Yeah, yeah, and some countries use a comma for the decimal place, such that '25,904' would be twenty-five and nine-hundred and four thousandths, not twenty-five thousand nine-hundred and four.

It's important to understand that certain countries do things differently, but in this case, I doubt it interfered with a knowledgeable person's comprehension - 12/21/12 cannot be mistaken for a dd/mm/yy or a yy/mm/dd format.

I'm all for metric, but it can be taken too far - like the old French attempt at decimal time and regular 30-day months.
http://en.wikipedia.org/wiki/French_Republican_Cal...


RE: So...
By pwnsweet on 7/22/2009 11:09:35 PM , Rating: 1
Disagree. dd/mm/yyyy makes more sense because it follows the same logical progression that the brain uses when you tell somebody when you were born. ie, "I was born on the sixteenth of June in nineteen seventy three".

You don't say:

"Hey dude, I was born in July, the seventh day I might add, in nineteen sixty seven".


RE: So...
By Tuor on 7/23/2009 12:02:47 AM , Rating: 5
No, I say I was born December 22nd, 1968.

BTW, those Incas are bastards for ending the world on the day before my birthday. I'm shaking my fist at them even as I type this (one-handed).


RE: So...
By drnk on 7/23/2009 4:51:19 AM , Rating: 2
I think it depends how you're use to deal with it.
In my opinion, for everyday use dd/mm/yyyy should be more convenient.For example, if you find a newspaper or some kind of document on your desk, usually it's not something old enough so you have to care about the year.More likely, you care about the day, or the month at most.
On the contrary, if you are dealing with some kind of (massive) archive where even very old documents are stored in, the thing you care the most is the year so yyyy/mm/dd should be more convenient.After you find the year that you are interested in, you make your search more specific by looking at month and days.
mm/dd/yyyy makes less sense to me, it looks like some kind of old habit, however since it's easy to get use to it I don't think it may be a problem.


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