Omg they are testing the machine without any care if the machine destroy in 20000 millons pieces who care ? we can repair again, Ok now when the machine destroy the world Ok no problem we r not alive for afront the problems
It's wrong that the LHC shutdown for CHRISTmas. Part of the LHC's mission is to explore the big bang and possibly destroy the idea of God I'd hope. It just wasn't good taste nor fitting to shutdown a potentially God ending machine in the name of Christ. I hope it's able to sucessfully start back up again in those very cold temperatures or Christians might claim it's a act of God to stop it.
damit did the find the higgs bosen will someone plx tell me is the lhc workin yet and once again sry but did the fund the higgs bosen particle or not i need to know
It's obvious that a prototype will have flaws... I think it will happen again. I wonder how many fuses they're going to blow before it's realized that we are not allowed to have this type of power- AKA knowledge.
When the conductors are carrying high currents they will expand when they heat up. The repeated expansion and contraction as the device is switched on and switched off will eventually cause them to snap. I bet this happens again!
I hope they have fitted a combination of temperature sensors and strain guages to monitor this. To prevent this the connectors need to be kept at a constant temperature!!
Is the liquid helium flowing across or through the cables, I asume it is in its liquid state ,and flowing, as in the gas state it wont absorb the heat. Any heat would cause the liquid to become a gas local to the heat source causing an avalanche effect.
You're right in so far as a faulty connection will be the weakest link. But, you seem to be making the assumption that the connection with the most resistance will blow. Not so, if the connectors are within tollerance then there shouldn't be a problem. As the guy says , this particular connection had a resistance of 200 x the 1 billionth of 1 ohm specified. I'm guessing they should be able to detect any further faulty connections by testing the total resistance/impedence. Time will tell.
I meant the connection with the most resistance will blow first, but i take your "within tollerance" point. They would have to pass the huge currents through each connection to measure the volt drop across the junction.. If pulsed dc is used i wonder if a "back emf "is produced causing a momentary higher voltage across the junction thus exceding its rating.? I really hope this works this time..cant wait for the results..
My guess is they would use a much lower A/C current to test the charcteristics of the whole ring. If a high frequency was used you should see a reflected wave back from any step in impedence. All guess work on my part of course. Interesting stuff even BEFORE the science starts! :-)
Yup . A lower step in impedance from the source would cause a reflected wave inverted from the source wave(i.e in extreme a short circuit) this would bounce back adding to the next source pulse. A higher step would cause a reflected pulse in phase with the source. Consequently any change in impedance even a small amount of connector resistance(given the high currents) will cause multiple reflections in the loop..they could decouple (filter) these out close to each connector.
Heat is only generated by resistance. Beacuse the the conductor is super-cooled the resistance in the conductor is negligable unless a faulty connection is used ( as in this case ).
The word' connection' concerns me because even a connector made from a superconducting material implies a surface ,any surface may have atoms or molecules bonding to it ie oxides etc these then become sandwitched between the connections, this creates the resistance!! If there is a superconducting material that is liquid at the point of connection and then becomes solid then any impurities may be forced to the surface ( a form of welding?)
Totaly understand what you're saying but I'm assuming the people who designed this machine are well aware of these basic priciples. I know nothing about the physical design of the connections, and I'm guessing, neither do you ( no offence meant ), so I guess it comes down to trust in their capabilites. Also, bear in mind, they have been running similar experiments for quite a few years, albeit at lesser powers. So have experience to draw on.
No offence taken! History has taught us however that even simple design flaws can be overlooked and cause major incidents . Things that would appear to be quite basic and obvious. ie Three Mile Island incident when a simple PORV was stuck. The control panel only showed that the signal had been sent to open the valve, not that it was actualy open!.. I guess we will have to trust these guys,but i am a fully qualified electronics engineer with 20 years design experience.
Ja, why don't you use the money for the LHC 'to find the meaning of life' and use it for poverty of all over the world, those f-ing billions of dollars can save the world, f, now this is shit
And why don't you use the money you invest on drugs to fight poverty on the world?? Because of people like you the world goes to war every now and then, its because evil every now and then wants to obscure the work of the good intended men. You see that's the meaning of live to keep shifting humanity to a higher technological level by the good intended men and try to use that technology to get rid of evil drugs addict like you, makes you afraid ???
Omg they are testing the machine without any care if the machine destroy in 20000 millons pieces who care ? we can repair again, Ok now when the machine destroy the world Ok no problem we r not alive for afront the problems
2pala2pala 2 years ago
It's wrong that the LHC shutdown for CHRISTmas. Part of the LHC's mission is to explore the big bang and possibly destroy the idea of God I'd hope. It just wasn't good taste nor fitting to shutdown a potentially God ending machine in the name of Christ. I hope it's able to sucessfully start back up again in those very cold temperatures or Christians might claim it's a act of God to stop it.
rbolo29 2 years ago
Re; last 3 comments from Swinkyuk & Esurname, the answer is yes.
Re; is it a waste of money? Yes.
If they want to know the meaning of life they should go ask the Dali Lama and save a few trillion dollars :)
stawmy 2 years ago
Maybe those clever scientists should have measured the resistance of the cable BEFORE they switched it on?
stawmy 2 years ago
Problem; if the protons have antiparallel spin, they will pass right through each other, with NO INTERACTION AT ALL.
Bummer.
stawmy 2 years ago
damit did the find the higgs bosen will someone plx tell me is the lhc workin yet and once again sry but did the fund the higgs bosen particle or not i need to know
stantheman42069 2 years ago
Trying to make a Big Bang out of something that is made of "Weak" Material? Compared to the Big Bang, Diamond is a weak piece of paper.
I hope the machine gets fixed so I can roast some marshmellows with it.
Bassotronics 2 years ago
Comment removed
Bassotronics 2 years ago
this is how humanity expands and eliminates the thoughts of occurances happening for no reason...
jam99j 2 years ago
It's obvious that a prototype will have flaws... I think it will happen again. I wonder how many fuses they're going to blow before it's realized that we are not allowed to have this type of power- AKA knowledge.
CaptainDistracted 2 years ago
they postpone it for almost one year!?
sidthemyth 2 years ago
When the conductors are carrying high currents they will expand when they heat up. The repeated expansion and contraction as the device is switched on and switched off will eventually cause them to snap. I bet this happens again!
I hope they have fitted a combination of temperature sensors and strain guages to monitor this. To prevent this the connectors need to be kept at a constant temperature!!
Esurname 2 years ago
They cool it down with Helium to about 2Kelvin.
WouterBiesmans 2 years ago
Is the liquid helium flowing across or through the cables, I asume it is in its liquid state ,and flowing, as in the gas state it wont absorb the heat. Any heat would cause the liquid to become a gas local to the heat source causing an avalanche effect.
Esurname 2 years ago
This is important please read! This is why i think it could go bang again. (see reply to swinkyuk first)
1.The path of MOST RESISTANCE will be sort out first by the flowing electrons in the superconductor loop. (it found the weakest connection)
2. The flowing electrons will seek out the next path of most resistance( THERE MAY BE OTHER FAULTY CONNECTORS NOT FOUND OUT YET)
3. If design flawed they will all go bang IN TURN electrons always seeking out the path of most resistance!!!!
Esurname 2 years ago
You're right in so far as a faulty connection will be the weakest link. But, you seem to be making the assumption that the connection with the most resistance will blow. Not so, if the connectors are within tollerance then there shouldn't be a problem. As the guy says , this particular connection had a resistance of 200 x the 1 billionth of 1 ohm specified. I'm guessing they should be able to detect any further faulty connections by testing the total resistance/impedence. Time will tell.
swinkyuk 2 years ago
I meant the connection with the most resistance will blow first, but i take your "within tollerance" point. They would have to pass the huge currents through each connection to measure the volt drop across the junction.. If pulsed dc is used i wonder if a "back emf "is produced causing a momentary higher voltage across the junction thus exceding its rating.? I really hope this works this time..cant wait for the results..
Esurname 2 years ago
My guess is they would use a much lower A/C current to test the charcteristics of the whole ring. If a high frequency was used you should see a reflected wave back from any step in impedence. All guess work on my part of course. Interesting stuff even BEFORE the science starts! :-)
swinkyuk 2 years ago
Yup . A lower step in impedance from the source would cause a reflected wave inverted from the source wave(i.e in extreme a short circuit) this would bounce back adding to the next source pulse. A higher step would cause a reflected pulse in phase with the source. Consequently any change in impedance even a small amount of connector resistance(given the high currents) will cause multiple reflections in the loop..they could decouple (filter) these out close to each connector.
Esurname 2 years ago
Heat is only generated by resistance. Beacuse the the conductor is super-cooled the resistance in the conductor is negligable unless a faulty connection is used ( as in this case ).
swinkyuk 2 years ago
The word' connection' concerns me because even a connector made from a superconducting material implies a surface ,any surface may have atoms or molecules bonding to it ie oxides etc these then become sandwitched between the connections, this creates the resistance!! If there is a superconducting material that is liquid at the point of connection and then becomes solid then any impurities may be forced to the surface ( a form of welding?)
Esurname 2 years ago
Totaly understand what you're saying but I'm assuming the people who designed this machine are well aware of these basic priciples. I know nothing about the physical design of the connections, and I'm guessing, neither do you ( no offence meant ), so I guess it comes down to trust in their capabilites. Also, bear in mind, they have been running similar experiments for quite a few years, albeit at lesser powers. So have experience to draw on.
swinkyuk 2 years ago
No offence taken! History has taught us however that even simple design flaws can be overlooked and cause major incidents . Things that would appear to be quite basic and obvious. ie Three Mile Island incident when a simple PORV was stuck. The control panel only showed that the signal had been sent to open the valve, not that it was actualy open!.. I guess we will have to trust these guys,but i am a fully qualified electronics engineer with 20 years design experience.
Esurname 2 years ago
Ja, why don't you use the money for the LHC 'to find the meaning of life' and use it for poverty of all over the world, those f-ing billions of dollars can save the world, f, now this is shit
2012BeyondtheWorld 2 years ago
And why don't you use the money you invest on drugs to fight poverty on the world?? Because of people like you the world goes to war every now and then, its because evil every now and then wants to obscure the work of the good intended men. You see that's the meaning of live to keep shifting humanity to a higher technological level by the good intended men and try to use that technology to get rid of evil drugs addict like you, makes you afraid ???
matatan69 2 years ago