GENEVA, SWITZERLAND - APRIL 19:  Alberto Ramos (not in frame), Theoretical Physics Fellow and visitor, Antonio Gonzalez-Arroyo from the Universidad Autonoma de Madrid talk and make notes on the blackboard with chalk with theoretical physics equations at The European Organization for Nuclear Research commonly know as CERN on April 19, 2016 in Geneva, Switzerland.  (Photo by Dean Mouhtaropoulos/Getty Images)
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