How much TNT did it take to simulate this nuclear test?
What is the evidence that North Korea set off a nuclear bomb? There was an earthquake, and we theorize it was caused by an explosion that was "6 to 7 kilotons." That is entirely feasible to do with conventional explosives. There have been accidents with coal trains and ships colliding that have produced explosions equivalent to over 2 kilotons. Doesn't this seem more likely? Or is there some evidence that this really was nuclear?
How is it that Iran can't get enough centrifuges to make a nuclear bomb, but North Korea can? Iran is much more advanced as far as I know. (Please reply and enlighten me if I am wrong here). If they really do have a nuclear weapon in NK, it seems most likely that they bought old soviet surplus or got it from China.
Good point. I don't see any measurements of fallout.