InfiniteMothman t1_iuad5f4 wrote


InfiniteMothman t1_iu76pjo wrote

Nuclear research had been going on for decades by then, weapons research not as long(the idea of a neutron chain reaction was only about 10 years old) but preliminary R&D into nuclear weapons was taking place in several nations by 1940.

iirc there was a British commando raid to destroy a heavy water production facility in Norway in '41.