The recent discovery of nuclear fission by Hahn (pictured, right, with Lise Meitner) and Strassmann and its correct interpretation by Meitner and Frisch ushers in a whole new era of nuclear physics. Against this backdrop, Bohr and Wheeler publish a systematic comparison of the available experimental information with the reaction mechanism proposed by Meitner and Frisch who emphasized, within the liquid drop model of the nucleus, the analogy of nuclear fission with the splitting of fluid droplets into two smaller parts.