MADRID, SPAIN - APRIL 11:  Enginnering student Carlos Hucha, 22, works on his robot 'Troncomovil' before a sumo robots combat during the Cybertech robotics competition at the the School of Industrial Engineering of Madrid on April 11, 2014 in Madrid, Spain. The engineering students association RESET organizes the robotics contest in order to gain the practical experience that the university classes don't have and to increase the popularity of robotics within new engineering students, while they teach them to build robots. Students build their robots from the scratch with specs and rules agreed by the association.  (Photo by Pablo Blazquez Dominguez/Getty Images)