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wellerstein's profile
Alex Wellerstein
Alex Wellerstein
Alex Wellerstein
Verified account
@wellerstein

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Alex WellersteinVerified account

@wellerstein

Historian of science, secrecy, and nuclear weapons. Professor of STS at @FollowStevens. UC Berkeley alum with a Harvard PhD. NUKEMAP creator. Coder and web dev.

Hoboken, NJ / NYC
blog.nuclearsecrecy.com
Joined September 2011

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    1. Joseph‏ @jwmccartin 3 Sep 2017
      • Report Tweet

      @wellerstein Regarding the new DPRK pics, do you think the casing is made of DU (if it's not just a scale-model)? Would help with yield, no?

      1 reply 0 retweets 0 likes
    2. Alex Wellerstein‏Verified account @wellerstein 3 Sep 2017
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      Replying to @jwmccartin

      a fully DU case would be VERY heavy. not good for a missile warhead. you get ~17 kt per kg of DU fissioning, so a dab will do you.

      1 reply 0 retweets 1 like
    3. Joseph‏ @jwmccartin 3 Sep 2017
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      Replying to @wellerstein

      True, I just wonder how much yield from this recent test came from fast fission of U-238. Guess we will find out soon given the collapse?

      3 replies 0 retweets 0 likes
      Alex Wellerstein‏Verified account @wellerstein 3 Sep 2017
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      Replying to @jwmccartin

      — which is a big assumption. Soviets didn't test its first TN weapons at full yield, as example. US didn't always.

      7:29 AM - 3 Sep 2017
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      • Joseph
      0 replies 0 retweets 1 like

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