John Stewart Bell

John Stewart Bell (28 June 1928 – 1 October 1990) was a Northern Irish physicist who made great contributions to quantum physics, and especially to the question of what Heisenberg's uncertainty principle really tells us about the world.
http://www.ffn.ub.es/luisnavarro/nuevo_maletin/Bell%20(1964)_Bell%27s%20theorem.pdf