Nobel laureate of physics and chemistry - Germany / Federal Republic of Germany 1979 - 60 Pfennig

The special stamp series honors Nobel Prize winners Albert Einstein, Otto Hahn and Max von Laue. The Nobel Prize-winning works of the three scientists provided the motifs of the three commemorative stamps. Otto Hahn was born on March 8, 1879 in Frankfurt am Main. Since 1904 he has been involved in the investigation of radioactive substances and found a large number of radioactive elements or differently constructed cores of these elements ("isotopes"). From 1928 to 1945 Otto Hahn was director at the Kaiser Wilhelm Institute for Chemistry in Berlin. There he discovered together with Fritz Strassmann in December 1938, that from uranium by irradiation with neutrons the element barium arises. Hahn interpreted the experimental findings correctly as a split of the uranium nucleus. Otto Hahn was awarded the Nobel Prize for Chemistry of the Year 1944 for the discovery. From 1948 to 1960 Otto Hahn was President of the Max Planck Society for the Advancement of Science. He died on July 28, 1968 in Göttingen.