Einstein looked up to him, the Nazis tried to abduct him, his institute inCopenhagen hosted just about every Nobel prize winner in physics you can name(and then some), and Winston Churchill considered him a dangerous, dangerousman. His friends and enemies agreed: Niels Bohr was more than the father ofquantum mechanics -- he was one of the most important figures of the 20thcentury. The Tony Award-winning Broadway play "Copenhagen" barely scratched...