Bomb dropped on Hiroshima

[warpig2]

just watching a history programme and they state that the bomb weighed 4 tons. I know uranium is the heaviest element but how much would the uranium in this bomb weigh? Surely not 4 tons and if not what was the remainder of the weight made up off, could it have been a lead casing for example?

Thanks
warpig1

[Clanad]

Approximately 13 pounds (6.1 kilograms) of plutonium were used for the Hiroshima bomb... the rest being casing and triggering mechanisms... (Source: Wisconsin Project on Nuclear Arms Control )

[warpig2]

Clanad, take a look at this.

http://en.wikipedia.org/wiki/Little_boy

[Clanad]

What became of warpig1? Or i cloning finally a fact of life? Thanks for the link, by the way...

[warpig2]

ha, ha, clanad, warpig 1 is fine, I am over in scotland at the moment so have logged on under another address, wasn't banned, honest!

MacWarpig1

[alphamale]

I think the Hiroshima bomb was 60kg of high enriched uranium - the Nagasaki bomb was 6kg plute 239.
The rest was reflectors,sheilding, high explosives and casing. Ace