Funny pic/gif thread...

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JohnnyOzone said:
1.09 kg of the 64 kg of enriched uranium in "Little Boy" was converted into energy. I don't know of any butterflies that weigh almost 2.25 pounds
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Or...
In the Hiroshima bomb, "Little Boy", 64 kilograms of uranium were used, but less than one kilogram underwent fission. This means that the majority of the uranium did not participate in the nuclear reaction that caused the explosion. The explosive force of the bomb came from the energy released by the fission of just over half a gram of matter.
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Patrick Johnson said:
My source also said 1kg was "involved" - but only 0.5g actually powered the explosion.
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I think the discrepancy here is a matter of wording and definitions.
If 1 kg of Uranium was 'involved' with the fission reaction, that does not mean that the entire 1 kg mass was converted to energy. Indeed, a few neutrons from each atom were 'ejected' from the nucleus and thus converted to energy. The remaining mass of the Uranium atom would be preserved in the form of a different isotope.
Those 'few neutrons ' account for a small percentage of the mass of the initial atom.
 
NevadaP said:
I think the discrepancy here is a matter of wording and definitions.
If 1 kg of Uranium was 'involved' with the fission reaction, that does not mean that the entire 1 kg mass was converted to energy. Indeed, a few neutrons from each atom were 'ejected' from the nucleus and thus converted to energy. The remaining mass of the Uranium atom would be preserved in the form of a different isotope.
Those 'few neutrons ' account for a small percentage of the mass of the initial atom.
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I read that 64kg (140lbs) of uranium was used in "Little Boy", but all but a tiny bit of it expanded too rapidly to contribute to the actual fission/explosion (as I understand it). Wonder how big the explosion would be if it was 100% efficient... o_O
 
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