##EMBED## To date, four people have won a Nobel Prize twice.  Those include: Maria Sklodowska-Curie (1903 and 1911, for discovery of radioactivity (physics) and later for isolating pure radium (chemistry)); John Bardeen (1956 and 1972, for invention of the transistor (physics) and for coming up with the theory of superconductivity(physics)); Linus Pauling (1954 and 1962, for research into the chemical […]