Large Hadron Collider timeline
Large Hadron Collider - a short history of events:
10 September 2008 - scientists successfully fire first protons around the tunnel
19 September 2008 - a malfunction causes a loss of approximately six tons of liquid helium.
23 September 2008 - closed for repairs initially until Spring 2009 but then until summer and then until autumn.
06 November 2009 - a bird drops a bit of a baguette into the machine causing further delays
30 November 2009 - LHC becomes the world's highest energy particle accelerator achieving 1.18 trillion electron volts (TeV)
16 December 2009 - First collisions made at 2.36 TeV
10 March 2010 - Dr Steve Myers, of CERN, announces that it will close at the end of 2011 for up to a year for repairs
19 March 2010 - LHC reaches 3.5 TeV, three times the power of any previous collider.
30 March 2010 - At 12.06pm British time, the first high energy collisions recorded a total energy of 7 TeV