the science is simple, retards. uranium is a highly radioactive element that will decay if you just leave it there. the decay releases energy in the form of alpha, beta and gamma waves which could be captured to be turned into other forms of energy.  if you get enough uranium together (the critical mass) and put them together in water or carbon, the decay causes a chain reaction and the whole thing goes boom. that's a nuke. it's ridiculously simple to build a nuke if you have enough enriched uranium available. the whole time in the manhattan project/oppenheimer they were waiting to make enough enriched uranium. the engineering problem isn't difficult at all, that's why pakis and jeets and north koreans also have nukes.
Canada