After moving from Berlin to Stockholm in 1938, a collaboration with Otto Frisch produced the explanation for nuclear fission, although, unjustly, not a share of Otto Hahn's 1944 Nobel prize.  
A student of Boltzmann, this scientist independently discovered what is now called the Auger (OH-ghay) effect--two years before Auger did. After moving from Berlin to Stockholm in 1938, a collaboration with Otto Frisch produced the explanation for nuclear fission, although, unjustly, not a share of Otto Hahn's 1944 Nobel prize.  FTP, name this physicist known as the "Mother of the Atomic Bomb."
A student of Boltzmann, this scientist independently discovered what is now called the Auger (OH-ghay) effect--two years before Auger did.
Lise Meitner