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A Wednesday. Will the world survive it?
September 8, 2008
It relies on technologies that would not have been possible 30 years ago. The LHC is, in a sense, its own prototype.
Starting up such a machine is not as simple as flipping a switch. Commissioning is a long process that starts with the cooling down of each of the machine's eight sectors.
This is followed by the electrical testing of the 1600 superconducting magnets and their individual powering to nominal operating current.
Image: CERN scientists at the Large Hadron Collider control centre, days before the machine is scheduled to be activated.
Photograph: Fabrice Coffrini/AFP/Getty Images
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