In the late 1930s, Lise Meitner, an emigre German Jewish physicist in Sweden received a letter from her longtime collaborator, chemist Otto Hahn in Berlin, detaailing a problem: an experiment involving unranuim the two had been pursuing with their collaborators before Meitner's escape from Nazi Germany, was not, as expected, given the knowledge and theorizing of the cutting edge of then-contemporary physics, producing heavier elements ... on a walk with her nephew, Robert Frisch, a scientist living in Copenhagen, Meitner hit on the answer: without knowing it, they had split the atom. Hahn would receive the Nobel Prize for Chemistry for the discovery. Meitner was mentioned, but did not share the prize.
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