• Paragone@lemmy.world
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    5 days ago

    There is a minimum-amount of fission-fuel required, AND there is a minimum-amount of conventional-explosives required to compress the fission-fuel until it goes supercritical.

    That detonator isn’t going to be small-enough to hide in a vest.

    Absolute disinformation.

    _ /\ _

        • M137@lemmy.world
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          4 days ago

          I really wonder what happened when making that couch. The left one being on piece and then the right one having a seam between the bottom and the “pillow”. Thinking it’s either AI or some home project that didn’t pan out as planned.

          • smh@slrpnk.net
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            4 days ago

            I was thinking maybe it’s a sectional missing a section, with the part on the left being a sticky-outy bit for your legs that doesn’t have a back, and the part on the right expecting another piece on the side towards the camera.

            Or AI.

    • Ariselas@piefed.ca
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      5 days ago

      I mean, yeah, the Davie Crockett could fit in a back pack, a really big back pack 0hPf1HdHAWM2L90.webp

    • DaddleDew@lemmy.world
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      4 days ago

      It is stupid for even more reasons than that. I’ve thought about it back when North Korea had pretend nuclear suicide bombers march on their military parade.

      Even if somehow they manage to cram one in a backpack that is carriable by a person, there is no advantage whatsoever given the blast radius. You will have to use a vehicle of sorts to get near the enemy and more importantly away from your friendlies anyway. Whatever distance you can cover on foot afterwards won’t make much of a difference. Might as well make it vehicle borne.

      Also the whole point of a suicide vest is to be able to get in the middle of an unaware crowd or near your target before using it. With a nuke you don’t need to be in the middle of a targeted crowd or get that close to your target to have an effect.

    • brucethemoose@lemmy.world
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      4 days ago

      He’s talking about a dirty bomb. And, technically, that is quite possible and doable by the Iranians.

      It’s a stupid assertion, yes; but the engineering is plausible.

      • Valmond@lemmy.dbzer0.com
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        4 days ago

        Go rub yerself against bad american people!

        Imagine pulling the trigger and you have to endure radiation sickness for days or weeks before you get your virgins, smh.

    • sulfidedisburseangledafternoontipper@piefed.blahaj.zone
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      5 days ago

      I mean, the W54 was small enough to be carried by a person and I don’t think anyone wants even a 1kt device going off near them. So it’s within the realm of possibility even if it does strain credulity as an actual goal Iran was working toward (let alone a solid justification for this bullshit).

      Edit: the W54 weighed 51lb (23 kg).

    • KubeRoot@discuss.tchncs.de
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      4 days ago

      Do you actually need conventional explosives? I had the impression all they do is reliably stick the big hunks of radioactive material together in a big bomb that needs to be delivered at high speeds and detonate automatically. Wouldn’t it be enough to quickly shove a cylinder into a bigger core, perhaps with a motor or even a tensioned spring?

      That of course doesn’t waive the issue of the amount of fissile material, or the fact it needs to be all put together (you can’t spread it around a vest)

      • dual_sport_dork 🐧🗡️@lemmy.world
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        4 days ago

        It’s not just reliably sticking the two subcritical halves of fissile material together, but keeping them there via inertia long enough for enough of the mass to go critical before the much more minor reactions blow them apart via melting/vaporizing the nearest surfaces.

        If you had to halves of an atomic bomb core and just clacked them together mechanically you’d wind up with a lot of heat and a big old pulse of radiation, and if you were the one holding this device you probably would indeed die. But there would be no nuclear explosion in the sense we think of it as compared to actual functional nuclear weapons. At best you’d wind up with an energy release equivalent to a few pounds of TNT, which would be much easier to replicate with… a few pounds of TNT.

        This has been explored to death, e.g. via the Demon Core experiments, where a critical mass of fissile material was brought together via manual means and the end result was the release of enough radiation to kill at least two people (albeit certainly not killing them instantly) but no explosion.

        • KubeRoot@discuss.tchncs.de
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          3 days ago

          This has been explored to death, e.g. via the Demon Core experiments

          If I’m not mistaken, in case of the demon core accidents, the reaction was always interrupted by the experimenter frantically separating the two halves, right? Doesn’t mean it would detonate, but using it as an example of why it wouldn’t doesn’t seem to check out if I’m remembering correctly.

          • dual_sport_dork 🐧🗡️@lemmy.world
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            3 days ago

            The point is that even bringing the parts together until a critical state was reached, the material did not explode. If the Demon Core were left in its critical state like that but otherwise undisturbed, it surely would have melted but would not have gone off like an atom bomb.

            • KubeRoot@discuss.tchncs.de
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              3 days ago

              To my understanding, you can’t really do more than bring the parts together in a compact arrangement and keep them like that, so if the demon core would stay together (and not, say, get blown apart by the release of energy), then the issue would be a lack of fissile material (or reflectors), no?

              See also an image of a nuclear bomb design (I think Little Boy) from Wikipedia, which illustrates the idea of sliding a rod of fissile material into a hollow cylinder, though the bomb did it in reverse. I think the design might be obsolete due to inefficiency, and it might need the tough shell to hold it together (and act as a neutron reflector).