A ceremony is held as the last of 1746 superconducting magnets is lowered into the 27-km circumference tunnel that houses the LHC. The LHC project leader, Lyn Evans, changes a banner reading ‘first magnet for the LHC’ to ‘last magnet for the LHC’ in his native Welsh.
The Large Hadron Collider's (LHC) CMS detectors being installed.
LHC component accelerators and detectors
Construction of the CMS detector for LHC at CERN