Makes you wonder why the Germans didn't get all their clever scientists to concentrate on nuclear weapons though.
Well, that's because by the time they'd worked out roughly what they needed to do to make it work, they'd also worked out it would take them longer than they had. So instead they put their resources into making lots more conventional weapons in the hope of staving off the Russian counter-attack. They weren't really that far off up until late 43 when they pretty much pulled the plug on their nuclear projects.
