Bad soldering puts off 'Big bang machine'

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London, Oct 6: The chief scientist for the Large Hadron Collider (LHC) has said that the mega machine was put out of action for months because one electrical connection out of 10,000 was badly soldered. The LHC, which aims to shed light on how the universe began by replicating conditions just after the Big Bang, has to operate at extremely cold temperatures.

A report in the Telegraph says that it was switched on to great fanfare on September 10, but had to be turned back off nine days later because the cooling mechanism broke. It takes weeks to rechill the machine to 'superconducting' temperatures - allowing it to fire protons around a 17 mile loop of tunnels, causing them to crash into one another at close to light speed and break into even tinier particles.

"It is very probable that there was a connection that wasn't good," said Lyn Evans, project leader of the 17-mile LHC, buried deep under Swiss soil at CERN, the European Nuclear Research Organisation.

Evans said that he did not think a single fault in 10,000 connections was bad, but "it cost dearly".

Although the problem can be fixed within two months, there will not be time to restart the collider before the winter, when high electricity prices make it too expensive to run.

"It was a hard blow for us," Evans said. "But that's life," he added.


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