Large Hadron collider produces first proton collisions
The Large Hadron Collider, the world's most powerful physics experiment, has produced its first proton collisions just three days after it was restarted following repairs.
Reports indicate that the Large Hadron Collider, popularly called the 'Big Bang machine', is going to skip medium-energy proton collisions, jumping straight to its maximum energy in 2013, after it finishes collecting lower-energy data and has its circuitry upgraded.