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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. Cheryl Rofer‏ @CherylRofer 27 May 2016
      • Report Tweet
      Replying to @NuclearAnthro @AtomicAnalyst and

      This may be where that 0.7 g comes from http://factually.gizmodo.com/less-than-2-of-the-uranium-in-the-hiroshima-bomb-actua-1624444762 …

      2 replies 3 retweets 0 likes
    2. Cheryl Rofer‏ @CherylRofer 27 May 2016
      • Report Tweet
      Replying to @CherylRofer @NuclearAnthro and

      E=mc^2 gives big numbers. Someone else wrangle the units.

      1 reply 0 retweets 0 likes
    3. Martin “Doomsday” Pfeiffer (⧖)  🏳️‍🌈‏ @NuclearAnthro 27 May 2016
      • Report Tweet
      Replying to @CherylRofer @AtomicAnalyst and

      yeah I already tried on my phone. Tl; dr lol.

      2 replies 0 retweets 0 likes
    4. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 27 May 2016
      • Report Tweet
      Replying to @NuclearAnthro @CherylRofer and

      Sounds like fun, I'm on it. Let me find an envelope!

      1 reply 0 retweets 0 likes
    5. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 27 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      .7g to pure energy is about 15 kT

      1 reply 0 retweets 1 like
    6. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 27 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      Let me see if that jives with the mass defect

      1 reply 0 retweets 0 likes
    7. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 27 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      It would take 770g U235 to make 15Kt explosion

      1 reply 0 retweets 0 likes
    8. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 27 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      770g is 2% of 38.5Kg of U235, checks out

      1 reply 0 retweets 0 likes
    9. Alex Wellerstein‏Verified account @wellerstein 28 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      You have to add both projectile and target— 64 kg total

      1 reply 0 retweets 1 like
    10. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 28 May 2016
      • Report Tweet
      Replying to @wellerstein @NuclearAnthro and

      Oh right, more like 1.2% then huh? Crazy!

      6 replies 0 retweets 0 likes
      Alex Wellerstein‏Verified account @wellerstein 28 May 2016
      • Report Tweet
      Replying to @BeCurieus @NuclearAnthro and

      Groves nixed the idea, said there wasn't enough time

      10:02 AM - 28 May 2016
      • 1 Like
      • Martin “Doomsday” Pfeiffer (⧖) 🏳️‍🌈
      1 reply 0 retweets 1 like
        1. New conversation
        1. Christopher Willis  ⚡ 🌌 💻 🎥 ⚛️ 🤝‏ @BeCurieus 28 May 2016
          • Report Tweet
          Replying to @wellerstein @NuclearAnthro and

          Mmm,can't get that to add up?pic.twitter.com/hjCcOZ9M3l

          2 replies 0 retweets 0 likes
        2. Alex Wellerstein‏Verified account @wellerstein 28 May 2016
          • Report Tweet
          Replying to @BeCurieus @NuclearAnthro and

          The Nagasaki bomb only had 6.2 kg of plutonium in it

          0 replies 0 retweets 0 likes
          3. End of conversation

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