Niels Bohr was born and educated in Copenhagen, Denmark. He lived, worked, and died there, too. But his mark on science and history was worldwide. His professional work and personal convictions ...

Laue and friend, German chemist, Otto Hahn, secretly helped persecuted colleagues emigrate from Germany. When Germany invaded Denmark on April 9 th, 1940, Niels Bohr knew he had to hide the medals ...