History 181B (Spring 2001) - Class 32 (4/6/01)

History 181B: Modern Physics
Class 32 (4/6/01)
Nuclear physics and the threats of the 1930s

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Outline

Making progress in nuclear physics (finish)

Induced radioactivity and the transuranics (last time)
Nuclear physics, nuclear chemistry

     Nuclear modeling: successes and limitations
          The liquid-drop model: nuclear constitution
          The compound-nucleus model: nuclear reactions

Rethinking the transuranics: discovering fission (1938)

Troubles in Germany (begin)

Names and terms

Primary	Secondary
Enrico Fermi (1901-1954), NP 1938 Otto Hahn (1879-1968), NP 1944 (chemistry) Fritz Strassmann (1902-1980) Lise Meitner (1878-1968) Otto Robert Frisch (1904-1979) chain reaction