GENEVA, Switzerland - March 15, 2011 - In a long shot theory, physicists propose that the world's largest atom smasher could be used as a time machine to send a special kind of matter backward in time.
The scientists outline a way to use the Large Hadron Collider (LHC), a 17-mile long particle accelerator buried underground near Geneva, to send a hypothetical particle called the Higgs singlet to the past.











