Uploaded March 2015 | Updated September 2026, 2 weeks ago
Date- 10th Mar 15 Source- http://cds.cern.ch/record/2000309?ln=en
'In early 2013, after three years of running, the Large Hadron Collider (LHC) shut down for planned maintenance. Hundreds of engineers and technicians spent two years repairing and strengthening the accelerator in preparation for running at higher energy beginning in March 2015.'
Date- 10th Mar 15 Source- http://cds.cern.ch/record/2000309?ln=en
'In early 2013, after three years of running, the Large Hadron Collider (LHC) shut down for planned maintenance. Hundreds of engineers and technicians spent two years repairing and strengthening the accelerator in preparation for running at higher energy beginning in March 2015.'
