for acceleration to high energies, without losing too many anti-protons to collisions with the structure. Stochastic expresses the fact that signals to be taken resemble random noise, which was called "Schottky noise" when first encountered in vacuum tubes. Without van der Meer's technique, UA1 would never have had the sufficient high-intensity anti-protons it needed. Without Rubbia's realisation of its usefulness, stochastic cooling would have been the subject of a few publications and nothing else. Simon van de Meer developed and tested the technology in the proton Intersecting Storage Rings at CERN, but it is most effective on rather low intensity beams, such as the anti-protons which were prepared for use in the SPS when configured as a collider. Harvard University In 1970, Rubbia was appointed Higgins Professor of Physics at Harvard University, where he spent one semester per year for 18 years, while continuing his research activities at CERN. In 1989, he was appointed Director-General of the CERN Laboratory. During his mandate, in 1993, "CERN agreed to allow anybody to use the Web protocol and code free of charge … without any royalty or other constraint". Gran Sasso Laboratory Rubbia has also been one of the leaders in a collaboration effort deep in the Gran Sasso Laboratory, designed to detect any sign of decay of the proton. The experiment seeks evidence that would disprove the conventional belief that matter is stable. The most widely accepted version of the unified field theories predicts that protons do not last forever, but gradually decay into energy after an average lifetime of at least 1032 years. The same experiment, known as ICARUS and based on a new technique of electronic detection of ionizing events in ultra-pure liquid argon, is aiming at the direct detection of the neutrinos emitted from the Sun, a first rudimentary neutrino telescope to explore neutrino signals of cosmic nature. Rubbia further proposed the concept of an energy amplifier, a novel and safe way of producing nuclear energy exploiting present-day accelerator technologies, which is actively being studied worldwide in order to incinerate high activity waste from nuclear reactors, and produce energy from natural thorium and depleted uranium. In 2013 he proposed building a large number of small-scale thorium power plants. Other organisational affiliations Rubbia was principal Scientific Adviser of CIEMAT (Spain), a member of the high-level Advisory Group on global warming set up by EU's President Barroso in 2007 and of