MadameConcorde From San Marino, joined Feb 2007, 10351 posts, RR: 40 Posted (3 years 3 months 1 week 5 days 11 hours ago) and read 7250 times:
The damage that occurred in 2008 took 14 months to repair
A director at the Large Hadron Collider in Geneva has told BBC News that some mistakes were made in construction.
Dr Steve Myers said these faults will delay the machine reaching its full potential for two years.
The atom smasher will reach world record power later this month at 7 trillion electron volts (TeV) but the machine must close at the end of 2011 for up to a year for work to make the tunnel safe for proton collisions planned at twice that level.
The machine only recently restarted after being out of action for 14 months following an accident in September 2008.
NoWorries From United States of America, joined Oct 2006, 523 posts, RR: 1 Reply 2, posted (3 years 3 months 1 week 5 days 5 hours ago) and read 7073 times:
Every colider is a unique machine -- there's a certain amount of learning and tweaking. The second largest colider (Tevatron at Fermilab) had quite a few problems when it first started.
Operating only at half-power will still give scientests a chance to test the "other half" of the machine -- all of the detctors which is where all of the discoveries will occur.
Also, there is a bit of race between the Tevatron and the LHC to discover the Higgs boson first -- running at half power is still quite a bit more energetic than the Tevatron and might give the LHC bragging rights if they happen to find it.
sw733 From United States of America, joined Feb 2004, 6107 posts, RR: 10 Reply 10, posted (3 years 3 months 1 week 4 days 7 hours ago) and read 6677 times:
Quoting MD-90 (Reply 6): is it more complex than the Space Shuttle?
The Space Shuttle is so old that it's not as complex by todays standards as if it were, say, 1987. Could you or I build one? Hell no...but, first flight of Columbia was 1981...even the newest, Endeavour, first flew in 1992. Even with upgrades (specifically to glass cockpit, which isn't all that impressive these days), they're pretty old and worn out.
comorin From United States of America, joined May 2005, 4724 posts, RR: 17 Reply 13, posted (3 years 3 months 1 week 4 days 3 hours ago) and read 6590 times:
Even unrepaired, at 7TeV the LHC is an impressive machine and a remarkable achievement. It's now the world's most powerful accelerator by a factor of 2. There's good science coming out of it already, and even at 7TeV there's a chance to spot the Higgs Boson.
The money was well spent and diverted from other forms of useless spending. Look at the brilliant payoff from Hubble, for example.
Folks, 2 years is just an instant in terms of Man's history. Physics has come to a stop until we find out about Dark Matter. If you want a future in which we can wear anti-gravity suits and traipse across the Universe, support this effort!
Its total cost is around 6 billion dollars. Considering it is a multi-national effort between some of the richest western nations and considering how much we waste on defense, I think the tiny fraction it is getting is more than justifiable.
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are
NoWorries From United States of America, joined Oct 2006, 523 posts, RR: 1 Reply 15, posted (3 years 3 months 1 week 4 days 1 hour ago) and read 6514 times:
It's a lot of money to spend -- but there are unaswered questions that can only be answered with higher amounts of energy. Ironically, the answers might be negative -- for example, the Higgs might never be found, or some other flaw is found in the Standard Model. Sure, it's a high price to pay for additional information (negative or positive) -- but the alternative is to stop asking questions.
No. Nobody knows what it is except that it is there. It's existence is postulated based on the rate of expansion of the Universe. There is a huge amount of it but we can't see or detect it. Physicists are saying that if we have no clue about this stuff, which is 96% of the known Universe, then how much do we really understand anything?
Getting back to the LHC, the quest is on for the Holy Grail - the Higgs Boson. This is the particle that gives other particles the property of Mass.
All this is extremely hard to understand, even for PhDs. Our human existence is a macro level experience, and most of particle physics is just bits of equations or kluges necessary to fit a theory.
My interest in this is the application of this knowledge - exciting, even if not within my lifetime.