Today is the anniversary of the Little boy being dropped on Hiroshima now I’m pretty sure they were both dropped today, I could be wrong on Hiroshima and Nagasaki. But why do I always hear more about the Little Boy and not much about Fat Man, and what is the difference between the two, how does an atomic bomb work
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The difference between the two is that they used different designs and different fuel. Little Boy was a “gun-type” bomb, which worked by slamming two masses of uranium together to make a critical mass. Fat Man was an “implosion-type” bomb, which worked by compressing a sphere of plutonium and bombarding it with neutrons from a beryllium-polonium initiator, setting off a chain reaction that way.
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