The LHC is contained in a circular tunnel with a circumference of 27 KM at a depth ranging from 50 M to 175 M underground. The LHC will be operating at a temperature of 1.9 K or -271.25 °C, making it the largest cryogenic facility in the world at liquid helium temperature. Once switched on and fully operated, it will cause the protons and ions to collide at near the velocity of light. Scientists will record the resulting events caused by the collision and hope to understand the universe began and what it is made of. It is the most ambitious and powerful particle accelerator built to date with thousands of scientists from hundreds of countries in different disciplines working together.
The principle behind the LHC is pretty simple. First, fire 2 beams of particles along the two pathway, with one going clockwise and the other going counterclockwise. Then you accelerate both beams to near the velocity of light and direct them to collide with each other and watch the resulting events.
There has been arguments that the LHC will create powerful reactions never seen before that could cause serious trouble for the Earth such as destroying it. Few people are so concerned that they filed lawsuit to the CERN agency which operates the LHC to stop the LHC from activating and operating. The CERN has ruled out the possibilities that the LHC will destroy the Earth and will continue their plan to activate it on 10 September 2008.
I hope that the full activation and operation of the LHC will advance the understanding of the universe that we knew so little about. It will be a major step to the advancement of science and the corresponding theories that evolve around it. Of course you maybe paranoid about the safety of the LHC on human race and the Earth, so do enjoy yourself before 10 September 2008 arrives.
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