"The plutonium behind that flash [in the 1st nuclear test] is estimated at one gram – the weight of a dollar bill."https://twitter.com/AndyWeberNCB/status/641032786304991232 …
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@wellerstein@StephenUCS That's a good way of thinking about it. The way it was said in the article is rather misleading
@russianforces @StephenUCS The rest of the paragraph is accurate and contradicts it (6.2 kg of Pu, of which 1/5th fissioned).
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@wellerstein@russianforces Note for@WilliamJBroad: Poss. lack of clarity in your otherwise timely/valuable piece on Pu & Iran? See convoThanks. Twitter will use this to make your timeline better. UndoUndo
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