Gun type weapons are unreliable and do not provide a large blast, therefor rendering it obsolete. Though it is easier to make. The process includes accelerating a neutron(s) into a ball of Fissionable material and inducing a nuclear Fission reaction.
Implosion type weapons are in current use, though, not much, they detonate explosives around a ball of Fissionable material and create immense pressure which induces nuclear Fission. They generally have a higher blast effect.
The Atom bomb was deployed twice at Nagasaki and Hiroshima to end WWII. Though, their use is still hotly debated today. Atom bombs have become very obsolete since the development of Hydogen bombs, Cobalt bombs, and then Thermonuclear warheads.
The Japanese surrender! The atom bomb worked!
Noun; The Atom Bomb (as in the state of ones hands during the gesture.)
1. The act of lacing ones two sets of fingers together and thrusting it forward towards another individuals anus.
2. An advanced fisting technique in which one may suffer severe anal tearing.
The boy engaged in risky sexual behavior with two other males, M&D, and used to ATOM BOMB on them.