• AllNewTypeFace@leminal.space
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    2 months ago

    That’s what you get for not casting it on the “This is not a place of honour” sign near the jagged black obelisks after encountering the colony of glowing cats

  • Not a newt@piefed.ca
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    2 months ago

    Cobalt 60 has a half life of 5.27 years. Assuming that a language lost to time is at least 500 years old, the rod should be fairly safe to handle. Heck, even after only 100 years less than 0.01% of the original amount of radioactive material would be left.

    But that aside - One of the items that can be found in the video game series Avernum is Uranium bars, which give you a nice unhealthy glow :)

  • vithigar@lemmy.ca
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    2 months ago

    Isn’t the blue glow only present under water (or other transparent medium with a similarly high index of refraction)?

    • traceur201@piefed.social
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      2 months ago

      It’s technically slightly visible in air; if actually visible at all in air it means the level of radiation is ludicrously deadly

      • starman2112@sh.itjust.works
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        2 months ago

        It’s not so much that it’s visible in air, it’s just that your eyes have water in them

        So yeah, if you can see Cherenkov radiation outside of a pool of water, then that means the only thing attenuating the radiation is your eyeballs

    • StinkyFingerItchyBum@lemmy.ca
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      2 months ago

      I asked Chat GPT:

      Approximate unshielded dose rates:

      At 1 m: ≈ 5.2×10^4 Sv/h (≈51,800 Sv/h) — fatal essentially instantaneously (seconds or less).

      At 3 m: ≈ 5.8×10^3 Sv/h — fatal within seconds.

      At 10 m: ≈ 5.18×10^2 Sv/h — fatal within tens of seconds.

      At 30 m: ≈ 5.8×10^1 Sv/h — severe, life‑threatening in minutes.

      At 100 m: ≈ 5.2 Sv/h — dangerous; a few hours would produce fatal/serious acute radiation syndrome.

      (For perspective: an acute whole‑body dose of ~4–5 Sv often causes death without intensive medical care; 1 Sv already causes significant radiation sickness.)

      These are conservative, point‑source, unshielded estimates for whole‑body dose from the gammas. Being closer, or in contact, or staying in the field increases dose proportionally.

      • Gloomy@mander.xyz
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        2 months ago

        Back to me again. I’m sorry my radioactive physics game is weak and I had to speculatively look it up. That’s a lot of downvotes, yet no one decided to share the math themselves.

        I asked my toddler about the radiation and she said “nana” and then with emphasis “nana” once more.

        The downvotes are because our two methods of finding an answer are roughly equally likely to returning a reliable answer.

        Mine is slightly better for the climate, maybe. That will likely change as she grows up and uses up more resources. I’ll ask her to do the math on that one later, she is busy eating a book right now.

      • luciferofastora@feddit.org
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        2 months ago

        ChatGPT is a text generator. Any “information” it delivers is only correct by chance, if at all. Without the knowledge to check the answers yourself, you can’t possibly tell whether you’re falling for random error.

        More in-depth, ChatGPT has learned how likely certain word patterns are in combination. Something like “1+1=” will most often be followed by “2”. ChatGPT has no concept of truth or mathematical relationship, so it doesn’t “understand” why this combination occurs like that, it just imitates it.

        You can actually see the slight randomisation in the inconsistent way 5.18 is rounded to 5.2 instead. If this was correct – I’m not qualified to comment on that – and written by a human, you’d expect them to be more consequent with the precision. It’s likely that ChatGPT learned these number-words from different sources using different precision and randomly picks which one to go with for each new line.

        So what happens when it decides a word combination seems plausible, but it doesn’t actually make sense? Well, for example, lawyers get slapped with a fine for ChatGPT citing case law that doesn’t exist. They sounded valid, because that’s what ChatGPT is made for: generating plausible word combinations. It doesn’t know what a legal case is or how it imposes critical restrictions on what’s actually valid in this context.

        There’s an open access paper on the proclivity of LLMs to bullshit, available for download from Springer. The short version is that it’s entirely indifferent to truth. It doesn’t and can’t care or even know whether the figures it spits out are correct.

        Use it to generate texts, if you must, but don’t use it to generate facts. It’s not looking them up, it’s not researching, it’s not doing the math – it’s making them up to sound right.

      • tburkhol@lemmy.world
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        2 months ago

        You’re not getting downvoted. ChatGPT is getting downvoted, and you just happened to be in the way.

        These guys, the 2nd google link after AI, say that a 3540 Ci/130 TBq source would be around 500 Sv/h at 30 cm. Even Wikipedia says 45 Sv/h at 1m

  • Gladaed@feddit.org
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    2 months ago

    Nothing would happen it is so incredibly dangerous for its short half life time and reasonable amount of energy that’s freed by its decay.

    Its just fucking lead, bro.(Well, nickel)

  • Ziggurat@jlai.lu
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    2 months ago

    I am curious where this drop and run source comes from.

    Typically, they’re sealed in a shielded box, where you can open a small windows that the gamma say can escape and are used for field radiography when inspecting bridge/pipeline solder. Definitely not a drop and run thing

    • luciferofastora@feddit.org
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      2 months ago

      I’m guessing it’s short for “If you don’t know what this is and you find it outside of any shielded box, shit has gone very wrong and you should not be near this, let alone touch it”. The probably best way to get people to stop touching it is to suggest that it poses an acute threat, hence the urgency in the phrasing “drop and run”.

      So if you’re operating a device wherein it’s properly contained, you don’t see the label. If you’re removing it while protected appropriately, you already know the label doesn’t apply to you. If you know how to handle it, you don’t need instructions.

    • Sidhean@piefed.social
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      2 months ago

      I am guessing the idea is to induce terror in the holder such that, if they did not intend to hold a vial of Co 60, they would not mess with it further. It conveys the appropriate level of danger, if not an appropriate set of handling instructions.

      Edit: So I looked it up and I misunderstood: if you can read that (especially by the blue glow) then its rapidly killing you. I really don’t understand how dangerous some radiation is lmao.