Werner Heisenberg
From 1924 onwards, Stark supported Hitler. During the Nazi regime, Stark attempted to become the Führer of German physics through the "Deutsche Physik" ("German physics") movement (along with fellow Nobel laureate Philipp Lenard) against the "Jewish physics" of Albert Einstein and Werner Heisenberg (who was not Jewish). After Werner Heisenberg defended Albert Einstein's theory of relativity, Stark wrote an angry article in the official SS newspaper "Das Schwarze Korps", calling Heisenberg a "White Jew".