>To achieve an explosion you have to induce super-criticality with very precise timing. Otherwise the uranium will melt and become sub-critical before it explod

>To achieve an explosion you have to induce super-criticality with very precise timing. Otherwise the uranium will melt and become sub-critical before it explodes. True, but the complexity of the Fat Man plutonium bomb (shown in the link here) belies the simplicity of Little Boy uranium bomb.