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Professor Brian Cox visits Geneva to take a lookaround Cern's Large Hadron Collider before this vast, 27km long machineis sealed-off and the experiment to create the simulation of a blackhole begins.
When it's up and running, it will be capable ofcreating the conditions that existed just a billionth of a second afterthe Big Bang. Brian joins the scientists who hope that the LHC willchange our understanding of the early universe and solve some of itsmysteries.