A galaxy of physicists in Munster, Germany, May 1932.

This photograph was taken by the famous Austrian chemist, Friedrich Adolf Paneth (1887-1958) at tea during the International Bunsentagung on Radioactivity in Munster (16-19 May). This took place just under a year before Hitler seized power in Germany and shows some of the greatest scientists of the early 20th century. They are (l-r), James Chadwick (1891-1974), who had just proved the existence of neutrons, Gyorgy Hevesy (1885-1966), Frau Geiger, Hans Geiger (1882-1945), Lise Meitner (1878-1968), Ernest Rutherford (1871-1937), Otto Hahn (1879-1968), Stefan Meyer (1872-1949) and Karl Przibram (1878-1973).