ans Bethe. Another of the incredibly talented and prolific theoretical physicists coming out of Germany in the first half of the twentieth century, Bethe was also another doctoral student of Arnold Sommerfeld's and also went on to win the Nobel Prize. Bethe began his career in chemistry because the i

em— had been unveiled. Bethe won the Nobel Prize in 1967, and almost forty years after that, experiments on neutrinos coming from the Sun confirmed Bethe's predictions. Neutrinos were the key experimental observable that allowed such confirmation. This is because the whole chain begins with a reactio