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Not too difficult Zips. 10 yrs in the business and it becomes a bit clearer. Being half way through a PhD on the control theory of accelerator magnets and their effects on the beam helps too. At the mo' you're suffering from "overload". I get it too. Especially when I see some of the maths involved. I'm sure Donald, like me, suffers an involuntary bowel movement when first confronted with a new form of maths. I could explain it all in an evening over a few beers.
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Superconducting (s/c) magnets aren't as cutting edge as many believe Don. Actually they're quite common in this field (ha ha..geddit?). The LHC is unusual because it uses so many of them.
The s/c magnets used at CERN are low temp magnets and require liquid helium to get them to 2.8K. Liquid helium is expensive, about the same as your 10 yo finest. Nowadays high temp s/c's are the vogue (HTS-110 speciality.) and they go s/c at 70K. High enough for liquid nitrogen which is about the same cost as milk.
Quench is phenomena where a small localised area ceases to be super conducting. This causes ohmic (or heating) losses which heats up the surrounding local area, which then raises the temperature even further. The result is that the whole magnet ceases to be superconducting in a fraction of a second. This results in a collapse of the magnetic field which, in turn, causes a back EMF across the terminals. We're talking mega or even giga joules in the case of the LHC. This energy has to go somewhere and it is these energy absorbant circuits which aren't up to scratch.
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No sh&t Peter? I'm impressed. Mind you there's been some serious talent down your way: Oliphant & Bragg.
Donald, That's just getting there. Sadly it'll have to wait two years before they can get to the full 14TeV 'cause they found the quench absorbing circuits in the power supplies for the dipoles are ropey. If they stick to protons they could do it but they won't be able to do it with lead ions.
I see the new european spallation source is to be built in Sweded. Pity, I was hoping it would be built in Spain. That's a project I'd like to be involved in. Maybe if I...
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Never mind that, the LHC is in strife again..sigh..
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It was very successful in endurance racing. It's grand prix career was ..um..spectacularly unsuccessful.
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Ah but could you afford an oval pistoned trials bike?
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'Bleedin' hell! I would have guessed about 35,000 squids. Kinda puts Vestys Sherpa into perspective.
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For a while there I thought you said "spank the monkey"
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The flat cap brigade will be horrified. A flick turn on a sherpa?
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funniest racing accident ever?
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Interesting observations Dan, however I would like to take issue with this one:
That was certainly true in the past. Disciples of other off-road disciplines often looked down their noses at the sport for "old men" and "riders who were too scared to go fast". However in the last 10-15 yrs this attitude has changed dramatically. I attribute this change in attitude to enduros being dominated by trials and ex-trials riders. This has raised peoples awareness of the sport and they've been watching WTC videos (perhaps access to videos has helped in changing attitudes too) and people are impressed and intrigued. This, in turn, has led to our off-road friends dabbling in trials and discovering it's a hell of lot more difficult than it looks.
IMO, previously trials was considered oddball it's now accorded the respect it deserves in the greater motorcycling community
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Wayne, see a professional.
The statement in the quote above proves that you need help. Any regular poster on TC knows that Bigfoot is a real and occasionally posts here.
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I can conceive how this was achieved on the sprocket side but how was it done on the primary crankcase side?
Sorry Dabster, I was wrong again.
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That's pretty much as far forward as you can go (I think).
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Thanks Dabster. Seems there's a boss on the mount.
Paul, you beat me to it.
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Phil Jones: "it was not 'standard practice' to release data and computer models so other scientists could check and challenge research."
Daily mail
Clearly somebody failed philosophy of science 101.
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Carlos was quite emphatic (well, as you can be when using Babelfish) that his design was what could have been.
Had another thought about the stub axles. The design could be quite robust. By extending the rear engine mounting bracket to mate with the bash plate (ala Gas Gas) the arrangement would be much stronger.
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As far as I can work out there's two ways to do it, firstly as described above, take a nibble out of the back of the crankcases and use a standard s/arm pivot bolt OR use two stub axles that thread into mating blind threads welded to the rear engine mount. But this will not be very, structurally, sound.
Hey Dabster you don't fancy throwing together of that twinshock Carlos Iso design do you? Somebody has to do it.
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No problem Woody.
Dabster, I thought you sold yours?
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I yield. It's a thought though. Machine a slot in the cases and move the s/arm pivot even futher forward (hopes Big John will bite..)
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Now I see how they moved the s/arm pivot forward. They took a chunk out of the cases.
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