• 10:51 10 September 2008
  • NewScientist.com news service
  • Valerie Jamieson, Geneva

Protons have made their first complete lap of the world’s most powerful accelerator to cheers and high fives from assembled physicists.

At 1025 (local time) scientists sent a single beam of protons in a clockwise direction around the full 27 kilometres of the Large Hadron Collider at the CERN laboratory near Geneva, Switzerland.

The journey began at 0930 when LHC project leader Lyn Evans and his team launched protons into the ring. Progress was made in short steps of a few kilometres, so that physicists could learn how to steer the beam, which is travelling at 99.9998% the speed of light.

Continued here

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