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Message: <blockquote data-quote="aye_sha90" data-source="post: 2903044" data-attributes="member: 11913">Major effort "We will be able to see deeper into matter than ever before," said Dr Tara Shears, a particle physicist at the University of Liverpool. "We will be looking at what the Universe was made of billionths of a second after the Big Bang. That is amazing, that really is fantastic." The LHC should answer one very simple question: What is mass?"We know the answer will be found at the LHC," said Jim Virdee, a particle physicist at Imperial College London. The currently favoured model involves a particle called the Higgs boson - dubbed the "God Particle". According to the theory, particles acquire their mass through interactions with an all-pervading field carried by the Higgs. The latest astronomical observations suggest ordinary matter - such as the galaxies, gas, stars and planets - makes up just 4% of the Universe. The rest is dark matter (23%) and dark energy (73%). Physicists think the LHC could provide clues about the nature of this mysterious "stuff". But Professor Virdee told BBC News: "Nature can surprise us... we have to be ready to detect anything it throws at us." Full beam ahead Engineers injected the first low-intensity proton beams into the LHC in August. But they did not go all the way around the ring. On Wednesday, they sent a proton beam around the full circumference of the LHC tunnel. Technicians had to be on the lookout for potential problems. Steve Myers, head of the accelerator and beam department, said: "There are on the order of 2,000 magnetic circuits in the machine. This means there are 2,000 power supplies which generate the current which flows in the coils of the magnets." If there was a fault with any of these, he said, it would have stopped the beam. They were also wary of obstacles in the beam pipe which could prevent the protons from completing their first circuit.</blockquote>

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