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Cake day: August 15th, 2025

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  • bobo@lemmy.mltoScience Memes@mander.xyzBuzz off
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    7 days ago

    Idk if it’s a species difference, but European yellow jacket wasps are pretty fucking chill. I’ve only been or seen someone get stung if they accidentally squish/step on them.

    On the other hand they’re soooo persistent about stealing my food and bait. Like no, you can’t steal meat from my fork, fuck off. gets slapped, and comes back with 5 more sisters to bully me out of my lunch. It’s especially bad in late summer and so we have to eat indoors because of them.

    Hornets can go fuck themselves though and I try to kill them on sight if they’re around the house.





  • bobo@lemmy.mltoScience Memes@mander.xyzSpicy Air ☢️
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    1 month ago

    Riiiight people are protesting for no reason…

    The French government has yet to authorize Cigéo’s construction, and now the French Nuclear Safety Authority (ASN) and the Institute for Radioprotection and Nuclear Safety (IRSN) have raised concerns about the design. Although it acknowledges overall progress, IRSN questions whether the sealing would be a strong enough barrier and says ANDRA needs to do more to reduce the risk of radioactive leaks. The agency also needs to improve its strategies to monitor risks and to rehabilitate the facility in case of radioactive spills, IRSN says. Perhaps the biggest problem, however, is medium-level radioactive sludge immobilized in bitumen, or tar, a technique introduced in the 1960s that has now been abandoned. IRSN says that in case of fire in a tunnel, bituminized waste could rapidly overheat and burn. “We would risk creating a phenomenon that we don’t know how to stop,” and trigger “a very substantial” release of radioactivity into the environment, says François Besnus, director of IRSN’s Environment Division in Fontenay-aux-Roses. Both agencies say ANDRA and the producers of nuclear waste need to study treatments that prevent overheating; if that fails, a major redesign of the facility may be needed.

    Others say the risks are simply too high. Radiation will break down water in the rock and cause corrosion of metal structures, leading to the release of explosive hydrogen gas, says biologist and engineer Bertrand Thuillier, an associate professor at the University of Lille. ANDRA plans to ventilate the tunnels, but that could exacerbate fires by providing oxygen, he says. A failure could be catastrophic, Thuillier warns: The area around Bure helps provide eastern Paris with water and is close to one of the world’s most cherished wine regions, Champagne.

    https://www.science.org/doi/10.1126/science.357.6354.858

    Edit: and just so we’re clear, this is “the biggest, most complex and costliest nuclear decommissioning and radioactive waste management programme on earth.” With planned cost between 23 and 54 bilion €


  • bobo@lemmy.mltoScience Memes@mander.xyzSpicy Air ☢️
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    1 month ago

    Ah, that must be why first world countries like France are trying to export their nuclear waste into third world countries, after they were forced to stop exporting it into Russia…

    If it’s so safe, why have they been closing down every single high level waste permanent storage site over the last decade?







  • I think we’re doing different things, that’s why it’s giving us completely different errors.

    I just added files to imports in configuration.nix

    I’m guessing you’ve got some manual error checking implemented with assertions?

    error:
           … while calling the 'seq' builtin
             at «github:nixos/nixpkgs/4bd9165a9165d7b5e33ae57f3eecbcb28fb231c9?narHash=sha256-l/iNYDZ4bGOAFQY2q8y5OAfBBtrDAaPuRQqWaFHVRXM%3D»/lib/modules.nix:402:18:
              401|         options = checked options;
              402|         config = checked (removeAttrs config [ "_module" ]);
                 |                  ^
              403|         _module = checked (config._module);
    
           … while evaluating a branch condition
             at «github:nixos/nixpkgs/4bd9165a9165d7b5e33ae57f3eecbcb28fb231c9?narHash=sha256-l/iNYDZ4bGOAFQY2q8y5OAfBBtrDAaPuRQqWaFHVRXM%3D»/lib/modules.nix:305:9:
              304|       checkUnmatched =
              305|         if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
                 |         ^
              306|           let
    
           (stack trace truncated; use '--show-trace' to show the full, detailed trace)
    
           error: Path 'nix/bobo/test.nix' does not exist in Git repository "/home/bobo/dotfiles".
    Command 'nix --extra-experimental-features 'nix-command flakes' build --print-out-paths '/home/bobo/dotfiles/nix#nixosConfigurations."bobo".config.system.build.nixos-rebuild' --no-link' returned non-zero exit status 1.
    

    I can often only try to guess what’s wrong by reading the stacktrace top-to-bottom, so I’ve somewhat gotten used to doing that.

    I’m yet to see any nix error be more readable top to bottom. And I think it’s intentionally designed that way so you don’t need to scroll up.


  • I actually thought, it said somewhere in there, that the file isn’t staged, but apparently not even that (anymore?).

    It’s a different error. To me it looks like you tried to import a file that doesn’t exist. I made the file correctly and imported it, just didn’t git add it. After committing I switched without issues.

    Only the modules/terminal/new_file.nix in the second-last line is relevant.

    For me that error message was in the same spot. The rest of the trace is what was evaled so you got to that error. It’s the same principle as stack trace in other languages.

    You don’t happen to be using Lix or something, do you?

    No, unstable nixos + home-manager. The error above was from

    sudo nixos-rebuild switch --flake ...
    





  • A bit offtopic, but it’s relevant.

    My first attempt to learn to code was more than a decade ago with python. I went through the basics, and decided to start a small project to practice. At the time python didn’t really have too many applications apart from automating tasks (before Hugo, flask, etc), so what did I think up? To make an automated propositional logic theorem prover. You input a formula, it tells you whether it’s a tautology or not.

    Great idea, there are some relatively simple algorithms we’ve learned for pen and paper, it doesn’t seem too hard, etc. After a month I learned that it’s an extremely complex problem with billions invested in solving it because it’s directly relevant to PCB manufacturing.

    That attempt failed horribly, and it took me a few more years and attempts before I found a good method. Web dev was actually crucial because I had direct feedback on simple logic.

    So if you’re anything like me, make a blog from scratch or something else that’s actually simple, but gives you immediate visual feedback. And just to be clear, I ended up absolutely hating frontend, but it was a great stepping stone.